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Shi C, Wan M, Qian X, Jing J, Zhou K. Zinc Hydroxystannate/Carbon Nanotube Hybrids as Flame Retardant and Smoke Suppressant for Epoxy Resins. Molecules 2023; 28:6820. [PMID: 37836664 PMCID: PMC10574770 DOI: 10.3390/molecules28196820] [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: 08/05/2023] [Revised: 09/02/2023] [Accepted: 09/03/2023] [Indexed: 10/15/2023] Open
Abstract
Novel hybrid flame retardants containing zinc hydroxystannate and carbon nanotubes (ZHS-CNTs) were synthesized using the coprecipitation method, and the structure and morphology of ZHS-CNTs were investigate using an X-ray powder diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and thermogravimetric analyzer (TGA). Then, the ZHS, CNTs and ZHS-CNTs were incorporated into EP, respectively, and the flame-retardant and smoke inhibition performance of the composites were compared and studied. Among the three composites, the EP/ZHS-CNT composites have the highest improvements on the fire resistance and smoke inhibition properties. With only 2.0 wt.% ZHS-CNT hybrids, the pHRR of EP/ZHS-CNT composite materials is reduced by 34.2% compared with EP. Moreover, the release of toxic gases including CO, CO2 and SPR from the composites was also effectively inhibited. The mechanisms of flame retardant and smoke inhibition were investigated and the improved properties were generally ascribed to the synergistic flame-retardant effects between ZHS and CNTs, the catalyzing effect of ZHS and the stable network structure of CNTs.
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Affiliation(s)
- Congling Shi
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China
| | - Mei Wan
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China
| | - Xiaodong Qian
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China
| | - Jingyun Jing
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China
| | - Keqing Zhou
- Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
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de Oliveira CRS, da Silva Júnior AH, Mulinari J, Ferreira AJS, da Silva A. Fibrous microplastics released from textiles: Occurrence, fate, and remediation strategies. J Contam Hydrol 2023; 256:104169. [PMID: 36893526 DOI: 10.1016/j.jconhyd.2023.104169] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 02/15/2023] [Accepted: 02/28/2023] [Indexed: 06/09/2023]
Abstract
Microplastics (MP), i.e., particles measuring less than 5 mm in size, are considered emerging pollutants. The ubiquity of MP is causing great concern among environmental and public health agencies. Anthropogenic activities are responsible for the extensive dispersal of MP in nature. Adverse effects on living organisms, interactions with other contaminants occurring in the environment, and the lack of effective degradation/removal techniques are significant issues related to MP. Most MP found in nature are fibrous (FMP). FMP originate from textile products, mainly synthetic fibers (e.g., polyester). Synthetic fibers are intensively used to produce countless goods due to beneficial characteristics such as high mechanical resistance and economic feasibility. FMP are ubiquitous on the planet and impart lasting adverse effects on biodiversity. Data on the consequences of long-term exposure to these pollutants are scarce in the literature. In addition, few studies address the main types of synthetic microfibers released from textiles, their occurrence, adverse effects on organisms, and remediation strategies. This review discusses the relevant topics about FMP and alerts the dangers to the planet. Furthermore, future perspectives and technological highlights for the FMP mitigation/degradation are presented.
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Affiliation(s)
- Carlos Rafael Silva de Oliveira
- Federal University of Santa Catarina, Department of Textile Engineering, João Pessoa street - 2514, 89036-004, Blumenau Campus, Blumenau, SC, Brazil; Federal University of Santa Catarina, Department of Chemical Engineering and Food Engineering, PO Box 476, 88040-900, Trindade Campus, Florianópolis, SC, Brazil.
| | - Afonso Henrique da Silva Júnior
- Federal University of Santa Catarina, Department of Chemical Engineering and Food Engineering, PO Box 476, 88040-900, Trindade Campus, Florianópolis, SC, Brazil
| | - Jéssica Mulinari
- Federal University of Santa Catarina, Department of Chemical Engineering and Food Engineering, PO Box 476, 88040-900, Trindade Campus, Florianópolis, SC, Brazil
| | - Alexandre José Sousa Ferreira
- Federal University of Santa Catarina, Department of Textile Engineering, João Pessoa street - 2514, 89036-004, Blumenau Campus, Blumenau, SC, Brazil
| | - Adriano da Silva
- Federal University of Santa Catarina, Department of Chemical Engineering and Food Engineering, PO Box 476, 88040-900, Trindade Campus, Florianópolis, SC, Brazil
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Cui M, Li J, Gao Q, Xiang J, Chen Y, Yan J, Fan H. A novel strategy to fabricate nylon 6 based flame retardant microfiber nonwoven fabric with durability. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128482] [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: 11/03/2022]
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