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Suparanon T, Klinjan S, Phusunti N, Phetwarotai W. Highly impact toughened and excellent flame-retardant polylactide/poly(butylene adipate-co-terephthalate) blend foams with phosphorus-containing and food waste-derived flame retardants. Int J Biol Macromol 2024; 263:130147. [PMID: 38354942 DOI: 10.1016/j.ijbiomac.2024.130147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/30/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
Green polymeric foams are an important research topic for sustainable development. In this study, a natural multifunctional flame-retardant additive based on food waste was developed and evaluated for its ability to replace the commercial additives tricresyl phosphate (TCP) and trioctyl phosphate (TOP) in a polylactide/poly(butylene adipate-co-terephthalate) (PLA/PBAT) foam. A series of blend foams with additives were prepared by melt extrusion. According to the results, the blend foam with 20 phr of TCP showed the best combination of impact toughness and flame retardancy. TCP, however, poses health and environmental risks. Therefore, natural flame retardants (NFRs) were used to partially replace the commercial flame retardant (CFR). A combination of TCP and soybean residue (SB) produced an impact toughened and flame-retardant blend foam. When compared to the neat PLA/PBAT foam, the impact toughness of the best sample was increased by about 256 %. The optimal foam showed excellent flame resistance with a V-0 UL-94 rating and a high LOI value (31.8 %). SB has the potential to partially replace TCP as flame retardant and could be used in a broad range of PLA/PBAT foam applications.
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Affiliation(s)
- Tunsuda Suparanon
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand; Energy and Materials for Sustainability (EMS) Laboratory, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand
| | - Siriwan Klinjan
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand
| | - Neeranuch Phusunti
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand; Energy and Materials for Sustainability (EMS) Laboratory, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand
| | - Worasak Phetwarotai
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand; Energy and Materials for Sustainability (EMS) Laboratory, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand.
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Wu S, Liang H, Sun K, Li Z, Hu M, Wang L, Yang L, Han Q, Zhang Q, Lang J. Domain-limited thermal transformation preparation of novel graphitized carbon-supported layered double oxides for efficient tetracycline degradation. J Environ Manage 2024; 352:120040. [PMID: 38215597 DOI: 10.1016/j.jenvman.2024.120040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/10/2023] [Accepted: 12/23/2023] [Indexed: 01/14/2024]
Abstract
The resource utilization of industrial lignin to construct high-performance catalysts for wastewater treatment field is pioneering research. Herein, the novel graphitized carbon-supported CuCoAl-layered double oxides (LDOs-GC) were successfully designed by the domain-limited thermal transformation technology using sodium lignosulfonate (LS) self-assembled CuCoAl-layered double hydroxides as the precursor. The optimized LDOs-GC catalyst owned the excellent tetracycline (TC) degradation of 98.0% within 15 min by activated peroxymonosulfate (PMS) under optimal conditions (20 mg/L catalyst, 1.5 mM PMS, 30 mg/L TC). The density of metal ions in the catalyst and the synergistic interaction between graphitized carbon (GC) and metal ions played a major role in TC degradation. Based on a comprehensive analysis, the TC degradation in LDOs-GC/PMS system was proved to be accomplished by a combination of free radicals (SO4·- and HO·) and non-radicals (1O2). Meanwhile, the possible degradation pathways of TC were proposed by the analysis of TC degradation intermediates and a comprehensive analysis of the rational reaction mechanism for TC degradation by LDOs-GC/PMS system was also performed. This work provides a new strategy for developing novel high-performance catalysts from industrial waste, while offering a green, cheap and sustainable approach to antibiotic degradation.
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Affiliation(s)
- Si Wu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Huicong Liang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Kexin Sun
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Zexin Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Mingzhi Hu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Liqi Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Qiang Han
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China
| | - Qi Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China.
| | - Jihui Lang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, PR China.
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Chen H, Wang E, Liang Y, Miao Y, Zhou Z, Ling M, Huang J, Zhang W. Influence of bio-coupling agent on interfacial interlocking compatibility and toughness of ultrafine bamboo charcoal/polylactic acid composite film. Int J Biol Macromol 2024; 258:128918. [PMID: 38134986 DOI: 10.1016/j.ijbiomac.2023.128918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/29/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Applications for polylactic acid (PLA) are significantly impacted by its poor mechanical properties and lack of thermal stability. The goal of this work is to bridge the gap of poor compatibility among the components and enhance their interface interlocking capability to improve the toughness and thermal stability. Ultrafine bamboo charcoal (UFBC) was treated through deep eutectic solvent (DES) method to deposit sodium lignosulfonate (LS) on its surface. LS was used with PLA as a bio-coupling agent to create an eco-friendly PLA composite film with a wide range of characteristics. Benefiting from the penetration of PLA to the internal pores in UFBC, the resultant L-UFBC/PLA film has a good mechanical interlocking structure. Ls can increase the compatibility and strengthen the interface interlocking capability through DES method, which greatly improves the mechanical properties of the system. In comparison to pure PLA one, the elongation at break was 136.24 % greater, and the crystallinity (Xc) increased from 1.09 % to 3.33 %. Furthermore, the thermal stability of the system was also improved, and the residual at 600 °C rose by 4.83 %. These characteristics offer the prepared L-UFBC/PLA film a wide range of potential applications in the packaging, medical, agricultural, and other sectors.
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Affiliation(s)
- Haifeng Chen
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Enfu Wang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Yipeng Liang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Yu Miao
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Zenan Zhou
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Mengyao Ling
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
| | - Jingda Huang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China.
| | - Wenbiao Zhang
- College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
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Kong Z, Chen Y, Qian L. The synergistic flame retardant effect of biobased phytic acid arginine salt and hydroxylated montmorillonite in polybutylenes succinate. Int J Biol Macromol 2024; 254:128033. [PMID: 37956808 DOI: 10.1016/j.ijbiomac.2023.128033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
In this research, hydroxylated nano montmorillonite (DK2) was used as a synergistic agent in combination with phytic acid arginine salt (PaArg). The flame retardancy and mechanical properties of PBS with different amounts of PaArg and DK2 were studied. Furthermore, the synergistic effect and mechanism of PaArg and DK2 in PBS were explored. The results showed that adding 23.5 % PaArg and 1.5 % DK2 increased the limiting oxygen index value (LOI) of the composite to 31.4 %, passing the UL 94 V-0 rating. By adding 25 % PaArg alone, the LOI value of the composite is 26.2 %, and the vertical burning test result is only V-2 rating. The cone calorimetry test results show that the peak heat release rate, total heat release rate, and total smoke production of PBS/23.5 % PaArg/1.5 % DK2 composite are 55.8 %, 17.1 %, and 44.7 % lower than those of PBS/25 % PaArg composite, respectively. All the results showed that PaArg and DK2 exhibited good synergistic flame retardancy in PBS. In addition, the impact strength and bending strength test results show that the impact strength and bending strength of PBS/23.5 %PaArg/1.5 %DK2 composite are higher than those of PBS/25%PaArg composite. This work improved the flame retardant efficiency of biobased flame retardants in PBS.
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Affiliation(s)
- Zimeng Kong
- School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; China Light Industry Engineering Technology Research Center of Advanced Flame Retardants, Beijing 100048, China; Petroleum and Chemical Industry Engineering Laboratory of Non-Halogen Flame Retardants for Polymers, Beijing 100048, China
| | - Yajun Chen
- School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; China Light Industry Engineering Technology Research Center of Advanced Flame Retardants, Beijing 100048, China; Petroleum and Chemical Industry Engineering Laboratory of Non-Halogen Flame Retardants for Polymers, Beijing 100048, China.
| | - Lijun Qian
- School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; China Light Industry Engineering Technology Research Center of Advanced Flame Retardants, Beijing 100048, China; Petroleum and Chemical Industry Engineering Laboratory of Non-Halogen Flame Retardants for Polymers, Beijing 100048, China
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Vasile C, Baican M. Lignins as Promising Renewable Biopolymers and Bioactive Compounds for High-Performance Materials. Polymers (Basel) 2023; 15:3177. [PMID: 37571069 PMCID: PMC10420922 DOI: 10.3390/polym15153177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 08/13/2023] Open
Abstract
The recycling of biomass into high-value-added materials requires important developments in research and technology to create a sustainable circular economy. Lignin, as a component of biomass, is a multipurpose aromatic polymer with a significant potential to be used as a renewable bioresource in many fields in which it acts both as promising biopolymer and bioactive compound. This comprehensive review gives brief insights into the recent research and technological trends on the potential of lignin development and utilization. It is divided into ten main sections, starting with an outlook on its diversity; main properties and possibilities to be used as a raw material for fuels, aromatic chemicals, plastics, or thermoset substitutes; and new developments in the use of lignin as a bioactive compound and in nanoparticles, hydrogels, 3D-printing-based lignin biomaterials, new sustainable biomaterials, and energy production and storage. In each section are presented recent developments in the preparation of lignin-based biomaterials, especially the green approaches to obtaining nanoparticles, hydrogels, and multifunctional materials as blends and bio(nano)composites; most suitable lignin type for each category of the envisaged products; main properties of the obtained lignin-based materials, etc. Different application categories of lignin within various sectors, which could provide completely sustainable energy conversion, such as in agriculture and environment protection, food packaging, biomedicine, and cosmetics, are also described. The medical and therapeutic potential of lignin-derived materials is evidenced in applications such as antimicrobial, antiviral, and antitumor agents; carriers for drug delivery systems with controlled/targeting drug release; tissue engineering and wound healing; and coatings, natural sunscreen, and surfactants. Lignin is mainly used for fuel, and, recently, studies highlighted more sustainable bioenergy production technologies, such as the supercapacitor electrode, photocatalysts, and photovoltaics.
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Affiliation(s)
- Cornelia Vasile
- Romanian Academy, “P. Poni” Institute of Macromolecular Chemistry, Physical Chemistry of Polymers Department 41A Grigore Ghica Voda Alley, RO700487 Iaşi, Romania
| | - Mihaela Baican
- “Grigore T. Popa” Medicine and Pharmacy University, Faculty of Pharmacy, Pharmaceutical Sciences I Department, Laboratory of Pharmaceutical Physics, 16 University Street, RO700115 Iaşi, Romania;
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Yang F, Hu A, Du C, Zhu J, Wang Y, Shao Y, Bao Q, Ran Y. Preeminent Flame-Retardant and Smoke Suppression Properties of PCaAl-LDHs Nanostructures on Bamboo Scrimber. Molecules 2023; 28:molecules28114542. [PMID: 37299018 DOI: 10.3390/molecules28114542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Bamboo scrimber is widely used in interior decoration, architecture, and many other fields. However, it has caused huge security risks due to its inherent flammability and easy-to-produce toxic volatiles after combustion. In this work, the bamboo scrimber with superior flame retardant and smoke suppression properties was produced via the coupling of phosphocalcium-aluminum hydrotalcite (PCaAl-LDHs) with bamboo bundles. The results demonstrated that the flame-retardant bamboo scrimber (FRBS) heat release rate (HRR) and total heat release (THR) were, respectively, reduced by 34.46% and 15.86% compared with that of untreated bamboo scrimber. At the same time, the unique multi-layer structure of PCaAl-LDHs effectively slowed down the release rate of flue gas by extending its escape path. Cone calorimetry showed that the total smoke emissions (TSR) and specific extinction area (SEA) of FRBS were, respectively, reduced by 65.97% and 85.96% when the concentration of the flame retardant was 2%, which greatly developed the fire safety of the bamboo scrimber. This method not only improves the fire safety of bamboo scrimber but can also be expected to broaden its use scenarios.
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Affiliation(s)
- Fei Yang
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Ailian Hu
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Chungui Du
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Jiawei Zhu
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Yuting Wang
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Yuran Shao
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Qichao Bao
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
| | - Yin Ran
- College of Chemistry and Materials Engineering, Zhejiang A & F University, Hangzhou 311300, China
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Sohrabi H, Majidi MR, Asadpour-Zeynali K, Khataee A, Mokhtarzadeh A. Self-assembled monolayer-assisted label-free electrochemical genosensor for specific point-of-care determination of Haemophilus influenzae. Mikrochim Acta 2023; 190:112. [PMID: 36869922 DOI: 10.1007/s00604-023-05687-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/31/2023] [Indexed: 03/05/2023]
Abstract
For sensitive detection of the L-fuculokinase genome related to the Haemophilus influenzae (H. influenzae), this research work demonstrates the label-free electrochemical-based oligonucleotide genosensing assay relying on the performing hybridization process. To enhance the electrochemical responses, multiple electrochemical modifier-tagged agents were effectively utilized. For attaining this goal, NiCr-layered double hydroxide (NiCr LDH) has been synthesized and combined with biochar (BC) to create an efficient electrochemical signal amplifier that has been immobilized on the surface of the bare Au electrode. Low detection and quantification limits (LOD and LOQ) associated with the designed genosensing bio-platform to detect L-fuculokinase have been achieved to 6.14 fM and 11 fM, respectively. Moreover, the wide linear range of 0.1 to 1000 pM demonstrates the capability of the designed platform. Investigated were the 1-, 2-, and 3-base mismatched sequences, and the negative control samples clarified the high selectivity and better performance of the engineered assay. The values of 96.6-104% and 2.3-3.4% have been obtained for the recoveries and RSDs, respectively. Furthermore, the repeatability and reproducibility of the associated bio-assay have been studied. Consequently, the novel method is appropriate for rapidly and quantitatively detecting H. influenzae, and is considered a better candidate for advanced tests on biological samples such as urine samples.
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Wang L, Tian XY, Liu ZH, He QY, Li JS, Liu SC, Jian J, Xu S. Fabrication of highly hydrophobic layered double hydroxide decorated with tannic acid cross-linked phosphazene as a novel flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Wang L, Wu K, Ding CJ, Min JJ, Chen HP, Liu ZH, Xi DN, Zeng HY, Jian J, Xu S. Novel hierarchical carbon microspheres@layered double hydroxides@copper lignosulfonate architecture for polypropylene with enhanced flame retardant and mechanical performances. Int J Biol Macromol 2023; 235:123726. [PMID: 36801299 DOI: 10.1016/j.ijbiomac.2023.123726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Due to the inherent defect of flammability of polypropylene (PP), a novel and highly efficient carbon microspheres@layered double hydroxides@copper lignosulfonate (CMSs@LDHs@CLS) flame retardant was designed and prepared, which was attributed to the strong electrostatic interaction between carbon microspheres (CMSs), layered double hydroxides (LDHs) and lignosulfonate as well as the chelation effect of lignosulfonate on copper ions, and then it was incorporated into the PP matrix. Significantly, CMSs@LDHs@CLS not only observably improved its dispersibility in PP matrix, but also simultaneously achieved excellent flame retardant properties for composites. With the addition of 20.0 % CMSs@LDHs@CLS, the limit oxygen index of CMSs@LDHs@CLS and PP composites (PP/CMSs@LDHs@CLS) reached 29.3 % and achieved the UL-94 V-0 rating. Cone calorimeter tests indicated that the peak heat release rate, total heat release and total smoke production of PP/CMSs@LDHs@CLS composites exhibited declines of 28.8 %, 29.2 % and 11.5 %, respectively, compared with those of PP/CMSs@LDHs composites. These advancements were attributed to the better dispersibility of CMSs@LDHs@CLS in PP matrix and illustrated that CMSs@LDHs@CLS observably reduced fire hazards of PP. The flame retardant property of CMSs@LDHs@CLS might relate to condensed phase flame retardant effect of char layer and catalytic charring of copper oxides.
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Affiliation(s)
- Lei Wang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Kun Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Chi-Jie Ding
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jun-Jie Min
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hao-Ping Chen
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Zhi-Hao Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Dan-Ni Xi
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hong-Yan Zeng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
| | - Sheng Xu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
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Shahparast S, Asadpour-Zeynali K. α-MnO 2/FeCo-LDH on Nickel Foam as an Efficient Electrocatalyst for Water Oxidation. ACS Omega 2023; 8:1702-1709. [PMID: 36643503 PMCID: PMC9835177 DOI: 10.1021/acsomega.2c07580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The ever-expanding human societies on the one hand and the diminishing fossil fuel resources on the other have driven man to find a suitable, cheap, clean, and accessible source of energy. Water splitting is a good solution to this crisis. Because of the slow kinetics of water oxidation reaction, it is important to select efficient and durable electrocatalysts to improve the reaction kinetics. In this research, α-MnO2/FeCo-LDH catalysts on nickel foam were developed for water oxidation, which exhibited good catalytic performance and stability in a 0.1 M KOH solution. The electrocatalysts were synthesized by hydrothermal methods and characterized by XRD, FTIR, Raman, SEM, TEM, EDS, and MAP techniques. The proposed modified electrode has large exchange current, low overpotential, and small Tafel slope. Here, only an overpotential of 210 mV is required to achieve a current density of 5 mA cm2 with a Tafel slope of 70.4 mV dec-1 in an alkaline solution.
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Affiliation(s)
- Saeedeh Shahparast
- Department
of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz5166616471, Iran
| | - Karim Asadpour-Zeynali
- Department
of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz5166616471, Iran
- Pharmaceutical
Analysis Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz51664, Iran
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11
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Tang W, Qian L, Prolongo SG, Wang DY. Small core of piperazine/silane aggregation initiate efficient charring flame retardant effect in polypropylene composites. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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12
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Yang N, Ma J, Shi J, Guo X. Organic Modification of Layered Double Hydroxides and Its Applications. Acta Chimica Sinica 2023. [DOI: 10.6023/a22110448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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13
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Wang B, Wang X, Liu Y, Zhang Q, Yang G, Zhang D, Guo H. Phytic acid-Fe chelate cold-pressed self-forming high-strength polyurethane/marigold straw composite with flame retardance and smoke suppression. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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14
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Yan WJ, Xu S, Tian XY, Min JJ, Liu SC, Ding CJ, Wang NL, Hu Y, Fan QX, Li JS, Zeng HY. Novel bio-based lignosulfonate and Ni(OH)2 nanosheets dual modified layered double hydroxide as an eco-friendly flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Sun M, Wang Y, Wang X, Liu Q, Li M, Shulga YM, Li Z. In-Situ Synthesis of Layered Double Hydroxide/Silica Aerogel Composite and Its Thermal Safety Characteristics. Gels 2022; 8:gels8090581. [PMID: 36135293 PMCID: PMC9498337 DOI: 10.3390/gels8090581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
To adjust the thermal safety of hydrophobic silica aerogel, layered double hydroxide (LDH)/silica aerogel (SA) composites were prepared by an in-situ sol-gel process at ambient pressure. This study found the physical combination of SA and MgAl-LDH based on the FTIR spectra and phase composition of LDH/SA. The N2 sorption analysis confirms that the introduction of MgAl-LDH does not change the mesoporous attribution of LDH/SA significantly. With the increase in MgAl-LDH addictive content, the low density (0.12–0.13 g/cm3), low thermal conductivity (24.28–26.38 mW/m/K), and large specific surface area (730.7–903.7 m2g) of LDH/SA are still maintained, which can satisfy the requirements of thermal insulation. The TG-DSC analysis demonstrates that the endothermic effects and metal oxides formed during the MgAl-LDH decomposition are beneficial to the improvement of the thermal stability of LDH/SA composites. In addition, it was found that the gross calorific values of LDH/SA composites decrease with an increase in MgAl-LDH addictive content, all of which are lower than that of the pure SA. The research outcomes indicate that the thermal safety of LDH/SA composites is enhanced significantly by doping MgAl-LDH without impairing too many of the excellent properties, which benefits their expansion in the thermal insulation field.
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Affiliation(s)
- Mengtian Sun
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Yang Wang
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Xiaowu Wang
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Qiong Liu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Ming Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
| | - Yury M. Shulga
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
- National University of Science and Technology MISIS, Leninsky pr. 4, Moscow 119049, Russia
| | - Zhi Li
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China
- Correspondence:
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16
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Mosconi G, Salguero Y, Valenti LE, Rojas R, Strumia MC, Gomez CG, Giacomelli CE. Antimicrobial modification of polypropylene films by photograft and layered double hydroxides assembly. REACT FUNCT POLYM 2022; 178:105349. [DOI: 10.1016/j.reactfunctpolym.2022.105349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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17
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Li C, Wang B, Zhou L, Hou X, Su S. Effects of lignin-based flame retardants on flame-retardancy and insulation performances of epoxy resin composites. Iran Polym J 2022. [DOI: 10.1007/s13726-022-01052-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Zhong C, Xu S, Liu Z, Lu J, Yang Y, Li J, Wang N, Wu K, Ding C, Zeng H. Fabrication of hierarchical core-shell carbon microspheres@ layered double hydroxide@ polyphosphazene architecture in flame-retarding polypropylene. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Xiao D, Lv JX, Wu FJ, Wang ZB, Harre K, Chen JH, Gohs U, Wang DY. Development of multifunctional highly-efficient bio-based fire-retardant poly(lactic acid) composites for simultaneously improving thermal, crystallization and fire safety properties. Int J Biol Macromol 2022; 215:646-56. [PMID: 35777508 DOI: 10.1016/j.ijbiomac.2022.06.158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/10/2022] [Accepted: 06/25/2022] [Indexed: 11/22/2022]
Abstract
Currently, it is still a huge challenge to prepare high performance eco-friendly poly(lactic acid) (PLA) with high thermal stability, good processability, excellent crystallization behavior, good transparency and highly-efficient fire safety. In this paper, a novel bio-based nucleation agent N-(furan-2-ylmethyl)-P,P-diphenylphosphinic amide (FPPA) was prepared and used for the fabrication of fire safety PLA/FPPA composites. The chemical structure of FPPA was measured by FTIR, NMR and MS. Further, the crystallization behavior, thermal stability, fire safety and mechanical properties of PLA/FPPA composites were performed by TGA, DSC, polarization microscope, LOI, UL94, cone calorimeter, DMA and, SEM, Raman, GC-MS, and TGA-FTIR. The results showed that the multifunctional FPPA not only had a high thermal stability and was a good nucleation agent for PLA. Moreover, only loading of 3 wt% FPPA increased the LOI of PLA from 19.0 to 33.8 % with UL-94 V-0 classification. Furthermore, the heat release rate and total heat release values of PLA/3%FPPA composite reduced by 6.3 % and 15.3 % in cone-calorimeter test. Such high fire safety was mainly attributed to specific fire safety radicals due to thermal degradation of FPPA to interrupt composites burning in gas phase. Besides, transparency and mechanical properties were almost not changed because of low loading of FPPA in PLA. This multifunctional bio-based fire-retardant for PLA with good comprehensive performance promises broad application in engineering electronics, automobiles, 3D printing and construction materials.
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20
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Hu J, Xu S, Ding CJ, Liu ZH, Yan WJ, Hu Y, Zhong CZ, Cui XX, Wu K, Zeng HY. Novel carbon microspheres prepared by xylose decorated with layered double hydroxide as an effective eco-friendly flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Lyu B, Kou M, Gao D, Luo K, Ma J, Lin Y. Flame retardancy of carboxylated polyhedral oligosilsesquioxane modified layered double hydroxide in the process of leather fatliquoring. J Appl Polym Sci 2022. [DOI: 10.1002/app.52468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bin Lyu
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science and Technology Xi'an China
| | - Mengnan Kou
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science and Technology Xi'an China
| | - Dangge Gao
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science and Technology Xi'an China
| | - Kang Luo
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science and Technology Xi'an China
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science and Technology Xi'an China
| | - Yanjun Lin
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
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22
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Zhang T, Wang C, Wang Y, Wang Y, Han Z. Effects of Modified Layered Double Hydroxides on the Thermal Degradation and Combustion Behaviors of Intumescent Flame Retardant Polyethylene Nanocomposites. Polymers (Basel) 2022; 14:1616. [PMID: 35458367 DOI: 10.3390/polym14081616] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 02/01/2023] Open
Abstract
The flame retardancy of layered double hydroxides (LDHs) correlates with their structure and dispersion in a polymeric matrix. To improve the flame retardant effectiveness of Mg-Al LDH in polyethylene (PE), 2-carboxy ethyl (phenyl) phosphinic acid (CEPPA) was adopted as a flame retardant modifier to prepare CEPPA-intercalated LDH (CLDH) by the regeneration method, which was then exfoliated in PE by melt blending in the form of a masterbatch prepared from solution mixing. By compounding CLDH with intumescent flame retardant (IFR) composed of ammonium polyphosphate (APP) and pentaerythritol (PER), the thermal degradation and combustion behaviors of the flame retardant PE-based composites were investigated to reveal the flame retardant mechanism between CLDH and IFR in PE. The reactions between CLDH and IFR were revealed to make a predominant contribution to the compact and fully developed char of PE/IFR/CLDH, which enhanced the flame retardancy of the composites.
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Affiliation(s)
- Jia Chen
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Flexible Display Materials and Technology Co‐innovation Center of Hubei Province Jianghan University Wuhan China
| | - Li Rong
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Flexible Display Materials and Technology Co‐innovation Center of Hubei Province Jianghan University Wuhan China
| | - Wei Fang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Flexible Display Materials and Technology Co‐innovation Center of Hubei Province Jianghan University Wuhan China
| | - Jiyan Liu
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Flexible Display Materials and Technology Co‐innovation Center of Hubei Province Jianghan University Wuhan China
| | - Xueqing Liu
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Flexible Display Materials and Technology Co‐innovation Center of Hubei Province Jianghan University Wuhan China
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24
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Andrade-Guel M, Cabello-Alvarado C, Avila-Orta CA, Pérez-Alvarez M, Cadenas-Pliego G, Reyes-Rodríguez PY, Rios-González L. Green Flame-Retardant Composites Based on PP/TiO 2/Lignin Obtained by Melt-Mixing Extrusion. Polymers (Basel) 2022; 14:polym14071300. [PMID: 35406173 PMCID: PMC9002852 DOI: 10.3390/polym14071300] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/13/2022] [Accepted: 03/18/2022] [Indexed: 01/25/2023] Open
Abstract
Nowadays, highly flammable and harmful plastic materials are used in many daily applications. To prevent burning of materials, other harmful molecules or materials that are not environmentally friendly are added to plastics. To overcome this environmental issue, new materials have been investigated. Lignin, an industrial by-product, is an abundant biopolymer that can be used in fire safety plastics; it is considered a renewable and readily available resource. In this work, PP–TiO2/lignin composites were obtained with TiO2/lignin mixtures through the melt extrusion process, with different weight percentages of nanoparticles (10, 20, 25, and 30 wt.%). The PP–TiO2/lignin composites were characterized by XRD, FTIR, TGA, and SEM. Furthermore, cone calorimetry tests and the mechanical properties were evaluated. Cone calorimetry tests revealed that the introduction of 25 wt.% TiO2–lignin to the PP matrix reduced the peak of heat release rate (PHRR) and total heat release (THR) by 34.37% and 35.45%, respectively. The flame retardancy index (FRI) values of the composites were greater than 1.0 and were classified as good; the highest value of 1.93 was obtained in the PP-30 sample. The tensile tests demonstrated that the flexural modulus of the composites increased gradually with increasing lignin and TiO2 content, and the flexural strength decreased slightly. The use of lignin in PP composites can be an excellent alternative to synthesize new materials with improved flame-retardant properties and which is friendly to the environment.
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Affiliation(s)
- Marlene Andrade-Guel
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
| | - Christian Cabello-Alvarado
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
- CONACYT—Centro de Investigacion y de Innovacion del Estado de Tlaxcala, Tlaxcala 90000, Tlaxcala, Mexico
- Correspondence: (C.C.-A.); (G.C.-P.)
| | - Carlos Alberto Avila-Orta
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
| | - Marissa Pérez-Alvarez
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
| | - Gregorio Cadenas-Pliego
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
- Correspondence: (C.C.-A.); (G.C.-P.)
| | - Pamela Yahaira Reyes-Rodríguez
- Centro de Investigación en Química Aplicada, Saltillo 25294, Coahuila, Mexico; (M.A.-G.); (C.A.A.-O.); (M.P.-A.); (P.Y.R.-R.)
| | - Leopoldo Rios-González
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Saltillo 25280, Coahuila, Mexico;
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25
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Tian X, Xu S, Wu K, Zeng H, Hu J, Guo Y. Fabrication of an novel
NiCo
‐based bimetallic hydroxide encapsulated with polyphosphazene with simultaneously improved the flame retardancy and smoke suppression for polypropylene. J Appl Polym Sci 2022. [DOI: 10.1002/app.51771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xian‐Yao Tian
- College of Chemical Engineering Xiangtan University Xiangtan China
| | - Sheng Xu
- College of Chemical Engineering Xiangtan University Xiangtan China
| | - Kun Wu
- College of Chemical Engineering Xiangtan University Xiangtan China
| | - Hong‐Yan Zeng
- College of Chemical Engineering Xiangtan University Xiangtan China
| | - Jie Hu
- College of Chemical Engineering Xiangtan University Xiangtan China
| | - Yi‐Hui Guo
- College of Chemical Engineering Xiangtan University Xiangtan China
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26
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Sethupathy S, Murillo Morales G, Gao L, Wang H, Yang B, Jiang J, Sun J, Zhu D. Lignin valorization: Status, challenges and opportunities. Bioresour Technol 2022; 347:126696. [PMID: 35026423 DOI: 10.1016/j.biortech.2022.126696] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/02/2022] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
As an abundant aromatic biopolymer, lignin has the potential to produce various chemicals, biofuels of interest through biorefinery activities and is expected to benefit the future circular economy. However, lignin valorization is hindered by a series of constraints such as heterogeneous polymeric nature, intrinsic recalcitrance, strong smell, dark colour, challenges in lignocelluloses fractionation and the presence of high bond dissociation enthalpies in its functional groups etc. Nowadays, industrial lignin is mostly combusted for electricity production and the recycling of inorganic compounds involved in the pulping process. Given the research and development on lignin valorization in recent years, important applications such as lignin-based hydrogels, surfactants, three-dimensional printing materials, electrodes and production of fine chemicals have been systematically reviewed. Finally, this review highlights the main constraints affecting industrial lignin valorization, possible solutions and future perspectives, in the light of its abundance and its potential applications reported in the scientific literature.
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Affiliation(s)
- Sivasamy Sethupathy
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China
| | - Gabriel Murillo Morales
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China
| | - Lu Gao
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China
| | - Hongliang Wang
- College of Biomass Sciences and Engineering /College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, PR China
| | - Bin Yang
- Bioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354, USA
| | - Jianxiong Jiang
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China
| | - Jianzhong Sun
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China
| | - Daochen Zhu
- Biofuels Institute, School of Environmental Science and Safety Engineering, Jiangsu University, 212013 Zhenjiang, PR China.
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27
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Dong F, Luo Z, Wang B. Preparation of Mn 2+ Doped Piperazine Phosphate as a Char-Forming Agent for Improving the Fire Safety of Polypropylene/Ammonium Polyphosphate Composites. Materials (Basel) 2021; 14:7589. [PMID: 34947182 PMCID: PMC8707045 DOI: 10.3390/ma14247589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/02/2021] [Accepted: 12/05/2021] [Indexed: 12/14/2022]
Abstract
A piperazine phosphate doped with Mn2+ (HP-Mn), as a new char-forming agent for intumescent flame retardant systems (IFR), was designed and synthesized using 1-hydroxy ethylidene-1,1-diphosphonic acid, piperazine, and manganese acetate tetrahydrate as raw materials. The effect of HP-Mn and ammonium polyphosphate (APP) on the fire safety and thermal stability of polypropylene (PP) was investigated. The results showed that the combined incorporation of 25 wt.% APP/HP-Mn at a ratio of 1:1 endowed the flame retardant PP (PP6) composite with the limiting oxygen index (LOI) of 30.7% and UL-94 V-0 rating. In comparison with the pure PP, the peak heat release rate (PHRR), the total heat release (THR), and the smoke production rate (PSPR) of the PP6 were reduced by 74%, 30%, and 70%, respectively. SEM and Raman analysis of the char residues demonstrated that the Mn2+ displayed a catalytic cross-linking charring ability to form a continuous and compact carbon layer with a high degree of graphitization, which can effectively improve the flame retardancy of PP/APP composites. A possible flame-retardant mechanism was proposed to reveal the synergistic effect between APP and HP-Mn.
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Affiliation(s)
| | | | - Biaobing Wang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; (F.D.); (Z.L.)
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28
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Guo F, Zhang Y, Jia Y, Cai L, Li L. Magnesium hydroxide/graphene oxide chip in flakes structure and its fire-retardant reinforcement of polypropylene. J Polym Res 2021; 28. [DOI: 10.1007/s10965-021-02764-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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