Preparation and thermal properties of a novel flame-retardant coating

被引：121

作者：

Chen, Xilei ^{[1
]}

Hu, Yuan ^{[1
]}

Jiao, Chuanmei ^{[1
]}

Song, Lei ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2007年 / 92卷 / 06期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

degradation mechanism; UV/moisture dual-curing; flame retardant; coating;

D O I：

10.1016/j.polymdegradstab.2007.01.031

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel silicone and phosphate modified acrylate (DGTH) was synthesized and characterized by H-1 NMR and FTIR. It was found that DGTH could be cured both by UV radiation and moisture mode with FTIR. The flammability and thermal behavior of the cured film were studied by the limited oxygen index (LOI), thermogravimetric analysis (TG) and real time Fourier transform infrared (RT-FTIR). The LOI value of the cured film is 48 and the TG data shows that the cured film has three characteristic degradation temperature regions, attributing to the decomposition of phosphate and polyurethane to alcohols and isocyanates, thermal pyrolysis of alkyl chains, and decomposition of unstable structures in char, respectively. The RT-FTIR data implies that the degraded products of phosphate form poly(phosphoric acid) further catalyse the breakage of carbonyl groups to form an intumescent char, preventing the samples from further burning. (c) 2007 Published by Elsevier Ltd.

引用

页码：1141 / 1150

页数：10

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