A review on thermal decomposition and combustion of thermoplastic polyesters
A review on thermal decomposition and combustion of thermoplastic polyesters
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DOI：
10.1002/pat.526
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发表时间：
2004-12-01
影响因子：
3.4
通讯作者：
Weil, ED
中科院分区：
文献类型：
--
作者：
Levchik, SV;Weil, ED
综述了热塑性聚酯，特别是商业上重要的聚（对苯二甲酸乙二醇酯）（PET）和聚（对苯二甲酸1，4-丁二醇酯）（PBT）的热分解和燃烧的文献。虽然文献中不清楚脂肪族片段的异裂或均裂是聚酯热分解的第一步，但在任何情况下，轻质脂肪族片段的挥发使聚酯容易成为可燃聚合物。尽管在聚合物主链中存在苯基团，但热塑性聚酯显示出非常有限的炭化倾向，而是含芳族的聚合物片段挥发并供给火焰。阻燃添加剂，虽然它们通常促进聚酯在较低温度下的分解，但通常也促进炭化并因此抑制燃烧。版权所有（C）2004约翰威利父子有限公司。
An overview is presented of the literature on the thermal decomposition and combustion of thermoplastic polyesters, especially commercially important poly(ethylene terephthalate) (PET) and poly(1,4-butylene terephthalate) (PBT). Although the literature is not clear as to whether heterolytic or homolytic scission of aliphatic fragments is the first step in the thermal decomposition of polyesters, in any case volatilization of light aliphatic fragments make polyesters easily ignitable polymers. Despite the presence of benzene groups in the main polymer chain, thermoplastic polyesters show very limited tendency to char, but instead, aromatic-containing polymer fragments volatilize and feed the flame. Fire retardant additives, although they usually facilitate decomposition of the polyesters at lower temperature, also usually promote charring and therefore suppress combustion. Copyright (C) 2004 John Wiley Sons, Ltd.