硼硅氧烷树脂热解行为及动力学研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (3): 80-85.

硼硅氧烷树脂热解行为及动力学研究

宋金梅^1,2,王雷²,李艳斌²,姚亚琳^1,2

1.特种纤维复合材料国家重点实验室,北京玻钢院复合材料有限公司,北京102101;
2.树脂事业部,北京玻钢院复合材料有限公司,北京102101

收稿日期:2017-09-25 出版日期:2018-03-20 发布日期:2018-03-20
作者简介:宋金梅(1975-),女,博士,高级工程师,主要从事酚醛树脂的合成及硼硅树脂合成等方面的研究,sjm1996@163.com。
基金资助:
中材科技特种纤维复合材料国家重点实验室应用基础性研究项目(YJ2015SYS05)

STUDY ON PYROLYSIS AND KINETICS OF POLYBOROSILOXANE RESIN

SONG Jin-mei^{1, 2*}, WANG Lei², LI Yan-bin², YAO Ya-lin^{1, 2}

1.State Key Laboratory of Advanced Fiber Composites, Beijing Composite Material Co., Ltd., Beijing 102101, China;
2.Resin Department, Beijing Composite Material Co., Ltd., Beijing 102101, China

Received:2017-09-25 Online:2018-03-20 Published:2018-03-20

摘要/Abstract

摘要： 采用热重分析法和裂解质谱红外联用技术考察了硼硅氧烷树脂的热解反应行为,将Malek法与Coats-Redfern积分法结合,对实验数据进行动力学解析,得到了硼硅氧烷树脂热解反应的动力学参数。结果表明硼硅氧烷树脂的热解反应分为三段:在250 ℃以下的低温区,小分子气体放出的同时伴有熔融等发生;在250 ℃～650 ℃的高温区,以脱硅甲基反应为主;在650 ℃~800 ℃为稳定阶段。通过分析热解过程中产生的气体和固体成分及含量,得出硼硅氧烷树脂热解可能发生的反应。硼硅氧烷树脂的热解反应可以用2/3级动力学方程来描述;随着升温速率的增加,活化能和指前因子均先增加后减小。

关键词: 硼硅氧烷树脂, 裂解-GCMS法, 动力学, Coats-Redfern, Malek

Abstract: The pyrolysis characteristic of polyborosiloxane resin has been investigated by means of thermogravimetric analysis and pyrolysis-GCMS analysis. Models of the pyrolysis kinetics were derived using the coats-redfern integral method. The results show that the pyrolysis reactions of phenolic resin have two types: reaction of chain breaking (＜250 ℃ in the low temperature region), reaction of desilicon methylation (250 ℃ to 650 ℃ in the high temperature region) and stable phase (650 ℃ to 800 ℃), Through analysis of component and content of gas and solid during pyrolysis of polyborosiloxane resin, the possible reaction occurring in the is derived. The pyrolysis of borosiloxane resin pyrolysis of polyborosiloxane resin can be described by two thirds-order kinetics equations in main pyrolysis temperature regions. Active energy and pre-exponential factor increased and then decreased with increasing of heating rates.

Key words: polyborosiloxane resin, Py-GCMS, kinetics, Coats-Redfern, Malek

中图分类号:

TB332

宋金梅,王雷,李艳斌,姚亚琳. 硼硅氧烷树脂热解行为及动力学研究[J]. 玻璃钢/复合材料, 2018, 0(3): 80-85.

SONG Jin-mei, WANG Lei, LI Yan-bin, YAO Ya-lin. STUDY ON PYROLYSIS AND KINETICS OF POLYBOROSILOXANE RESIN[J]. Fiber Reinforced Plastics/Composites, 2018, 0(3): 80-85.

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