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Xiang J, Wang S, Chen N, Wen X, Tian G, Zhang L, Cheng P, Zhang J, Tang N. Study on Low Thermal-Conductivity of PVDF@SiAG/PET Membranes for Direct Contact Membrane Distillation Application. MEMBRANES 2023; 13:773. [PMID: 37755195 PMCID: PMC10535353 DOI: 10.3390/membranes13090773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023]
Abstract
In order to enhance the separation performance and reduce the heat loss of transmembrane for membrane distillation, the thermal efficiency and hydrophobicity of the membrane distillation need to be simultaneously enhanced. In this work, a polyvinylidene difluoride/polyethylene glycol terephthalate (PVDF/PET) hydrophobic/hydrophilic membrane has been prepared by non-solvent phase induction method. Nanosized silica aerogel (SiAG) with high porosity has been added to the composite membranes. The modifying effects and operating conditions on permeate flux and thermal efficiency in direct contact membrane distillation (DCMD) are investigated. Furthermore, the latent heat of vaporization and the heat transfer across the membranes have been compared for SiAG addition, which indicates that the composite PVDF@SiAG/PET membranes demonstrate a great potential for distillation-separation application due to their high heat efficiency.
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Affiliation(s)
- Jun Xiang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Sitong Wang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Nailin Chen
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Xintao Wen
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Guiying Tian
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Lei Zhang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Penggao Cheng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Jianping Zhang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
| | - Na Tang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, College of Chemical Engineering and Material Science, Tianjin University of Science and Technology (TUST), 13th Avenue 29, TEDA, Tianjin 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, 13th Avenue 29, TEDA, Tianjin 300457, China
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2
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Wang Y, Peng S, Zhu S, Wang Y, Qiang Z, Ye C, Liao Y, Zhu M. Biomass-Derived, Highly Conductive Aqueous Inks for Superior Electromagnetic Interference Shielding, Joule Heating, and Strain Sensing. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57930-57942. [PMID: 34797629 DOI: 10.1021/acsami.1c17170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conductive composite inks are widely used in various applications such as flexible electronics. However, grand challenges still remain associated with their relatively low electrical conductivity and require heavy use of organic solvents, which may limit their high performance in broad applications and cause environmental concerns. Here, we report a generalized and eco-friendly strategy to fabricate highly conductive aqueous inks using silver nanowires (AgNWs) and biomass-derived organic salts, including succinic acid-chitosan (SA-chitosan) and sebacic acid-chitosan. SA-chitosan/AgNW composite coatings can be prepared by directly casting conductive aqueous inks on various substrates, followed by subsequently heating for cross-linking. The composite coatings exhibit an ultrahigh electrical conductivity up to 1.4 × 104 S/cm, which are stable after being treated with various organic solvents and/or kept at a high temperature of 150 °C, indicating their high chemical and thermal resistance. The flexibility and performance durability of these composite coatings were demonstrated by a suite of characterization methods, including bending, folding, and adhesion tests. Moreover, a high electromagnetic interference shielding (EMI) effectiveness of 73.3 dB is achieved for SA-chitosan/AgNW composite coatings at a thickness of only 10 μm due to the ultrahigh electrical conductivity. Additionally, we further demonstrated that such conductive composite inks can be used for fabricating functional textiles for a variety of applications with high performance, such as EMI shielding, Joule heating, and strain sensing. The robust and highly conductive inks prepared by this simple and environmental-friendly method hold great promise as important material candidates for the potential large-scale manufacturing of flexible and wearable electronics.
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Affiliation(s)
- Yue Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Suping Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Shu Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Key Laboratory of Shanghai City for Lightweight Composites, Donghua University Center for Civil Aviation Composites, Donghua University, Shanghai 200051, China
| | - Yuming Wang
- School of Polymer Science and Engineering, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Zhe Qiang
- School of Polymer Science and Engineering, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Changhuai Ye
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yaozu Liao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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Zhao J, Xi X, Ouyang H, Yang J, Wang Y, Yi L, Song D, Song Y, Zhao L. Acidic and alkaline gas sensitive and self-healing chitosan aerogel based on electrostatic interaction. Carbohydr Polym 2021; 272:118445. [PMID: 34420710 DOI: 10.1016/j.carbpol.2021.118445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 05/21/2021] [Accepted: 07/12/2021] [Indexed: 01/17/2023]
Abstract
Gas pollution is a serious problem. More attention has been paid to the detection and monitoring of toxic and harmful gases, and it is urgently needed for a sensor that could simultaneously identify and distinguish between acid and base gases. Based on the electrostatic interaction resulting from amidogen of chitosan (CS) and carboxylic groups of itaconic acid (IA), we successfully prepared a series of biomass aerogels (CS-IA aerogels) that could respond to acidic and alkaline gases with different concentrations. The acidic and alkaline gases could be easily detected and distinguished by changing the content of IA in CS-IA aerogels. Moreover, the electrostatic interactions could also endowed CS-IA aerogels with self-healing ability in the breaks at room temperature. After self-healing, CS-IA aerogels still sensitively answered to acidic and alkaline gases. CS-IA aerogels with sensitivity to acid-base gas and self-healing performance has been suggested to be promising candidates as application of multi-functional aerogels.
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Affiliation(s)
- Jin Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Xiaotian Xi
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Hongyan Ouyang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Jiyu Yang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Yi Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Longfei Yi
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Dayu Song
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Yongjiao Song
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
| | - Lijuan Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China.
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Marshall JE, Zhenova A, Roberts S, Petchey T, Zhu P, Dancer CEJ, McElroy CR, Kendrick E, Goodship V. On the Solubility and Stability of Polyvinylidene Fluoride. Polymers (Basel) 2021; 13:1354. [PMID: 33919116 PMCID: PMC8122610 DOI: 10.3390/polym13091354] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 02/06/2023] Open
Abstract
This literature review covers the solubility and processability of fluoropolymer polyvinylidine fluoride (PVDF). Fluoropolymers consist of a carbon backbone chain with multiple connected C-F bonds; they are typically nonreactive and nontoxic and have good thermal stability. Their processing, recycling and reuse are rapidly becoming more important to the circular economy as fluoropolymers find widespread application in diverse sectors including construction, automotive engineering and electronics. The partially fluorinated polymer PVDF is in strong demand in all of these areas; in addition to its desirable inertness, which is typical of most fluoropolymers, it also has a high dielectric constant and can be ferroelectric in some of its crystal phases. However, processing and reusing PVDF is a challenging task, and this is partly due to its limited solubility. This review begins with a discussion on the useful properties and applications of PVDF, followed by a discussion on the known solvents and diluents of PVDF and how it can be formed into membranes. Finally, we explore the limitations of PVDF's chemical and thermal stability, with a discussion on conditions under which it can degrade. Our aim is to provide a condensed overview that will be of use to both chemists and engineers who need to work with PVDF.
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Affiliation(s)
- Jean E. Marshall
- WMG, International Manufacturing Centre, University of Warwick, Coventry CV4 7AL, UK; (S.R.); (P.Z.); (C.E.J.D.); (V.G.)
| | - Anna Zhenova
- Department of Chemistry, University of York, York YO10 5DD, UK; (A.Z.); (T.P.); (C.R.M.)
| | - Samuel Roberts
- WMG, International Manufacturing Centre, University of Warwick, Coventry CV4 7AL, UK; (S.R.); (P.Z.); (C.E.J.D.); (V.G.)
| | - Tabitha Petchey
- Department of Chemistry, University of York, York YO10 5DD, UK; (A.Z.); (T.P.); (C.R.M.)
| | - Pengcheng Zhu
- WMG, International Manufacturing Centre, University of Warwick, Coventry CV4 7AL, UK; (S.R.); (P.Z.); (C.E.J.D.); (V.G.)
| | - Claire E. J. Dancer
- WMG, International Manufacturing Centre, University of Warwick, Coventry CV4 7AL, UK; (S.R.); (P.Z.); (C.E.J.D.); (V.G.)
| | - Con R. McElroy
- Department of Chemistry, University of York, York YO10 5DD, UK; (A.Z.); (T.P.); (C.R.M.)
| | - Emma Kendrick
- College of Engineering and Physical Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Vannessa Goodship
- WMG, International Manufacturing Centre, University of Warwick, Coventry CV4 7AL, UK; (S.R.); (P.Z.); (C.E.J.D.); (V.G.)
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Zhang X, Wang Q, Liu S, Zhang L, Wang G. Improved processability and optimized preparing process for
fire‐safe
poly (ethylene terephthalate) by electron effect modified Schiff base. J Appl Polym Sci 2021. [DOI: 10.1002/app.50444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xinxing Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
| | - Qingyin Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
| | - Shaoying Liu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
| | - Lilei Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University Luoyang China
| | - Gongying Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
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Flame-retardant and Self-healing Biomass Aerogels Based on Electrostatic Assembly. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2444-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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7
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Xu J, Ou H, Shan X, Liu B, Jiang J, Xu G. Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO
2
@MAPP and double pentaerythritol. J Appl Polym Sci 2020. [DOI: 10.1002/app.49242] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jiacheng Xu
- School of Environmental & Safety Engineering Changzhou University Changzhou People's Republic of China
| | - Hongxiang Ou
- School of Environmental & Safety Engineering Changzhou University Changzhou People's Republic of China
| | - Xueying Shan
- School of Environmental & Safety Engineering Changzhou University Changzhou People's Republic of China
| | - Ben Liu
- School of Environmental & Safety Engineering Changzhou University Changzhou People's Republic of China
| | - Juncheng Jiang
- School of Environmental & Safety Engineering Changzhou University Changzhou People's Republic of China
| | - Guoguang Xu
- Changzhou Shujie Plastic Products Co., Ltd Changzhou People's Republic of China
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