材料科学
极限氧指数
阻燃剂
傅里叶变换红外光谱
复合材料
涂层
单体
固化(化学)
甲基丙烯酸酯
纤维
化学工程
燃烧
聚合物
烧焦
有机化学
化学
工程类
作者
Yanli Dou,Zheng Zhong,Jiaming Huang,Aixun Ju,Weiguo Yao,Chunyu Zhang,Dongbo Guan
出处
期刊:Polymers
[MDPI AG]
日期:2023-04-18
卷期号:15 (8): 1920-1920
被引量:2
标识
DOI:10.3390/polym15081920
摘要
In this work, a novel P/N flame-retardant monomer (PDHAA) was synthesized through reacting phenyl dichlorophosphate (PDCP) with N-hydroxyethyl acrylamide (HEAA). The structure of PDHAA was confirmed using Fourier transform infrared (FTIR) spectroscopy and proton nuclear magnetic resonance (NMR) spectroscopy. PDHAA monomer and 2-hydroxyethyl methacrylate phosphate (PM-2) monomer were mixed at different mass ratios, to prepare UV-curable coatings, and then applied to the surface of fiber needled felts (FNFs), to improve their flame retardancy. PM-2 was introduced to reduce the curing time of the flame-retardant coatings and improve the adhesion between the coating and the fiber needled felts (FNFs). The research results indicated that the surface flame-retardant FNFs had a high limiting oxygen index (LOI) and rapidly self-extinguished in a horizontal combustion test and passed a UL-94 V-0 test. At the same time, the CO and CO2 emissions were greatly reduced, and the carbon residue rate was increased. In addition, the introduction of the coating improved the mechanical properties of the FNFs. Therefore, this simple and efficient UV-curable surface flame-retardant strategy has broad application prospects in the field of fire protection.
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