低黏度环氧树脂硼胺-酸酐复合固化体系研究

doi:10.13700/j.bh.1001-5965.2018.0208

北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (1): 141-148.doi: 10.13700/j.bh.1001-5965.2018.0208

低黏度环氧树脂硼胺-酸酐复合固化体系研究

邢志鹏, 乔英杰, 张晓红, 王晓东

哈尔滨工程大学材料科学与化学工程学院, 哈尔滨 150001

收稿日期:2018-04-11 修回日期:2018-05-11 出版日期:2019-01-20 发布日期:2019-01-28
通讯作者: 乔英杰 E-mail:qiaoyingjie99@163.com
作者简介:邢志鹏,男,博士。主要研究方向:树脂基复合材料;乔英杰,男,博士,教授。主要研究方向:树脂基复合材料、陶瓷基复合材料、敏感材料与器件。
基金资助:
国家自然科学基金（51479037）

Low-viscosity epoxy resin boramine-anhydride composite curing system

XING Zhipeng, QIAO Yingjie, ZHANG Xiaohong, WANG Xiaodong

College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China

Received:2018-04-11 Revised:2018-05-11 Online:2019-01-20 Published:2019-01-28
Supported by:
National National Science Foundation of China (51479037)

摘要/Abstract

摘要： 为探究低黏度环氧树脂复合固化反应机理，研究了低黏度环氧树脂硼胺-酸酐复合固化体系的流变性能和固化反应过程，分析了硼胺-酸酐复合比例对复合固化体系流变特性和固化反应过程的影响；利用流变学参数确定了复合固化体系的固化起始时间、凝胶时间点及基于阿伦尼乌斯方程的固化反应活化能。研究结果表明，随着硼胺-酸酐复合固化体系中酸酐复合比例的增加，体系固化反应获得促进，其固化起始时间和凝胶点均降低，同时基于阿伦尼乌斯方程的固化反应活化能降低；采用非等温差示扫描量热（DSC）对硼胺-酸酐复合固化体系过程进行分析，结果表明硼胺-酸酐复合固化体系存在相对独立的双放热峰，随着酸酐复合比例的增加，低温放热峰的峰值增大，高温放热峰的峰值减小，且双峰的峰值温度向高温方向移动。根据2种固化剂的固化反应机理分析，环氧树脂硼胺-酸酐复合固化体系中硼胺固化剂和酸酐固化剂既存在相互协同效应又存在相互竞争作用。

关键词: 环氧树脂, 硼胺固化剂, 酸酐固化剂, 流变特性, 固化反应

Abstract: In order to explore the mechanism of composite curing reaction of low viscosity epoxy resin,boramine-anhydride The rheological properties and curing reaction process of low-viscosity epoxy resin with boramine-anhydride composite curing system were studied, and the influence of boramine-anhydride compound ratio on the rheological properties and curing reaction process of the composite curing system was analyzed. Based on Arrhenius equation, the curing time, gel time and activation energy of curing reaction of the composite curing system were determined by rheological parameters. The results show that the curing reaction is promoted with the increase of the anhydride ratio in the curing system, while the starting point of curing and the gel time point decrease, and the activation energy based on Arrhenius equation is reduced. The curing reaction process of boramine-anhydride composite curing system was analyzed by non-isothermal differential scanning calorimeter (DSC). The results indicate that relatively independent double exothermic peaks appear in the boramine-anhydride composite curing system. With the increase of anhydride ratio, the peak value of the low-temperature exothermic peak increases, the peak value of the high-temperature exothermic peak decreases, and the peak temperatures of double exothermic peaks move to the side of high temperature. According to the curing reaction mechanism of the two kinds of curing agents, two effects of mutual synergy and mutual competition between the curing agents of boramide and anhydride exist in boramine-anhydride composite curing system of epoxy resin.

Key words: epoxy resin, boramine curing agent, anhydride curing agent, rheological property, curing reaction

中图分类号:

TQ323.5

邢志鹏, 乔英杰, 张晓红, 王晓东. 低黏度环氧树脂硼胺-酸酐复合固化体系研究[J]. 北京航空航天大学学报, 2019, 45(1): 141-148.

XING Zhipeng, QIAO Yingjie, ZHANG Xiaohong, WANG Xiaodong. Low-viscosity epoxy resin boramine-anhydride composite curing system[J]. JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2019, 45(1): 141-148.

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低黏度环氧树脂硼胺-酸酐复合固化体系研究

Low-viscosity epoxy resin boramine-anhydride composite curing system

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