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通过多步涂层制备含磷酰胺基硅氧烷聚合物的阻燃棉织物及其机理

Preparation and Mechanism of Flame-Retardant Cotton Fabric with Phosphoramidate Siloxane Polymer through Multistep Coating.

作者信息

Xu Denghui, Wang Shijie, Wang Yimin, Liu Yun, Dong Chaohong, Jiang Zhiming, Zhu Ping

机构信息

Institute of Functional Textiles and Advanced Materials, College of Textile and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China.

出版信息

Polymers (Basel). 2020 Jul 12;12(7):1538. doi: 10.3390/polym12071538.

DOI:10.3390/polym12071538
PMID:32664623
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7408352/
Abstract

To improve the water solubility of phosphoramidate siloxane and decrease the amount of flame-retardant additives used in the functional coating for cotton fabrics, a water-soluble phosphoramidate siloxane polymer (PDTSP) was synthesized by sol-gel technology and flame-retardant cotton fabrics were prepared with a multistep coating process. A vertical flammability test, limited oxygen index (LOI), thermogravimetric analysis, and cone calorimetry were performed to investigate the thermal behavior and flame retardancy of PDTSP-coated fabrics. The coated cotton fabrics and their char residues after combustion were studied by attenuated total reflection infrared spectroscopy (FTIR-ATR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). All results presented that PDTSP-coated cotton fabrics had good flame retardancy and char-forming properties. PDTSP coating was demonstrated to posess gas-phase flame-retardant mechanism as well as a condensed phase flame-retardant mechanism, which can be confirmed by thermogravimetric analysis-Fourier transform infrared spectroscopy (TG-IR) and cone calorimetry test. Also, the preparation process had little effect on the tensile strength of cotton fabrics, although the air permeability and whiteness had a slight decrease. After different washing cycles, the coated samples still maintained good char-forming properties.

摘要

为了提高磷酰胺基硅氧烷的水溶性并减少棉织物功能涂层中阻燃添加剂的用量，通过溶胶-凝胶技术合成了一种水溶性磷酰胺基硅氧烷聚合物（PDTSP），并采用多步涂层工艺制备了阻燃棉织物。进行了垂直燃烧试验、极限氧指数（LOI）、热重分析和锥形量热法，以研究PDTSP涂层织物的热行为和阻燃性能。通过衰减全反射红外光谱（FTIR-ATR）、扫描电子显微镜（SEM）和X射线光电子能谱（XPS）对涂层棉织物及其燃烧后的炭残渣进行了研究。所有结果表明，PDTSP涂层棉织物具有良好的阻燃性能和成炭性能。热重分析-傅里叶变换红外光谱（TG-IR）和锥形量热法测试证实，PDTSP涂层具有气相阻燃机理和凝聚相阻燃机理。此外，制备工艺对棉织物的拉伸强度影响较小，尽管透气性和白度略有下降。经过不同的洗涤循环后，涂层样品仍保持良好的成炭性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/f025f175db46/polymers-12-01538-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/ffb68db8f87a/polymers-12-01538-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/b929a83db7e0/polymers-12-01538-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/b1d33b345a81/polymers-12-01538-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/9e341f6a74ec/polymers-12-01538-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/f9506db4aaea/polymers-12-01538-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/a5990906c1f5/polymers-12-01538-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/0b1fdd08ea02/polymers-12-01538-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/c9d08a1f20a7/polymers-12-01538-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/f025f175db46/polymers-12-01538-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/ffb68db8f87a/polymers-12-01538-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/b929a83db7e0/polymers-12-01538-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/b1d33b345a81/polymers-12-01538-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/9e341f6a74ec/polymers-12-01538-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/f9506db4aaea/polymers-12-01538-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/a5990906c1f5/polymers-12-01538-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/0b1fdd08ea02/polymers-12-01538-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/c9d08a1f20a7/polymers-12-01538-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8200/7408352/f025f175db46/polymers-12-01538-g009.jpg

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