酚醛树脂浸渍石英纤维复合材料的热解行为  

Thermal decomposition behavior of phenolic resin impregnated quartz fiber composites

作　　者：白炳越 刘丹 杨进军[1] 王俊胜 Bai Bingyue;Liu Dan;Yang Jinjun;Wang Junsheng(School of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384,China;Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;Key Laboratory of Fire Protection Technology for Industry and Public Building,Ministry of Emergency Management,Tianjin 300381,China;Tianjin Key Laboratory of Fire Safety Technology,Tianjin 300381,China)

机构地区：[1]天津理工大学环境科学与安全工程学院,天津300384 [2]应急管理部天津消防研究所,天津300381 [3]工业与公共建筑火灾防控技术应急管理部重点实验室,天津300381 [4]天津市消防安全技术重点实验室,天津300381

出　　处：《消防科学与技术》2023年第9期1275-1279,共5页Fire Science and Technology

基　　金：国家自然科学基金项目(U2037206)。

摘　　要：利用热重-质谱联用仪和(TG-MS)热裂解气质(Py-GCMS)联用,研究了酚醛树脂石英纤维以20℃/min和20℃/ms升温速率升温到一定温度时的热解行为及热解气相产物组成。研究结果表明,酚醛树脂浸渍石英纤维复合材料与酚醛树脂的热解过程一致,且可以分为3个阶段:20~400℃为脱水失气阶段;400~800℃为热解的主要阶段,主要气相产物为水、甲烷、二氧化碳、苯、苯酚以及苯和苯酚的衍生物;当温度超过800℃时热解已经基本完全结束。快速升温到600、800、1000℃时酚醛树脂浸渍石英纤维复合材料的主要热裂解产物及相对含量与酚醛树脂的基本一样,说明酚醛树脂浸渍石英纤维复合材料的热解主要是其中酚醛树脂的热解,石英纤维不参与热解反应。The thermal decomposition behavior and composition of gas phase products of phenolic resin quartz fibers during thermal decomposition at a heating rate of 20℃/min and 20℃/ms to a certain temperature were investigated by thermogravimetric analysis-mass spectrometry(TG-MS)and pyrolysis⁃gas chromatography⁃mass spectrometry(Py-GCMS).The results show that the thermal decomposition process of phenolic resin impregnated quartz fiber composites is consistent with that of phenolic resin,and can be divided into three stages:dehydration and gas loss stage at 20~400℃;The main stage of pyrolysis is from 400℃to 800℃,and the main gaseous products are water,methane,carbon dioxide,benzene,phenol,and derivatives of benzene and phenol;When the temperature exceeds 800℃,the pyrolysis has basically completed.The main thermal decomposition products and relative content of phenolic resin impregnated quartz fiber composites at 600,800,and 1000℃are basically the same as those of phenolic resin;This indicates that the pyrolysis of phenolic resin impregnated quartz fiber composites is mainly due to the pyrolysis of phenolic resin,and quartz fibers do not participate in the pyrolysis reaction.

关 键 词：烧蚀材料 酚醛树脂浸渍石英纤维 热解 热重-质谱联用 热裂解气质联用 

分 类 号：X932[环境科学与工程—安全科学] TQ322.3[化学工程—合成树脂塑料工业]