BA9913环氧树脂固化动力学和TTT图

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (2): 48-53.

BA9913环氧树脂固化动力学和TTT图

张晨乾^{1, 2}, 陈蔚², 关志东¹, 叶宏军²

1.北京航空航天大学航空科学与工程学院,北京100191;
2.中航复合材料有限公司零部件事业部,北京101300

收稿日期:2016-08-05 出版日期:2017-02-28 发布日期:2017-02-28
作者简介:张晨乾(1983-),男,在读博士,工程师,主要从事树脂基复合材料成型工艺相关方面的研究,sunzhangzhang135@163.com。
基金资助:
航空科学基金(2015ZA51010)

CURE KINETICS AND TTT-DIAGRAM OF THE BA9913 RESIN

ZHANG Chen-qian^1,2, CHEN Wei², GUAN Zhi-dong¹, YE Hong-jun²

1.School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;
2.Research Institute of Composite Components, Composites Company Ltd of AVIC, Beijing 101300, China

Received:2016-08-05 Online:2017-02-28 Published:2017-02-28

摘要/Abstract

摘要： 以BA9913树脂的全动态DSC扫描实验为基础,结合半经验的唯象模型获得了基于唯象模型的高韧性环氧(牌号:BA9913)树脂的固化动力学参数,建立相应的动力学模型,并测定了BA9913树脂在100 ℃时保温不同时间后的凝胶固化度。利用DiBenedetto方程研究了该等温条件下BA9913树脂固化度与加热时间的关系,得到其玻璃化转变温度与固化时间的关系表达式。采用测凝胶储能模量的方法得到了BA9913树脂凝胶时的固化度和玻璃化转变温度之间的关系,绘制了BA9913树脂的TTT图。在此基础上对T300/BA9913的固化工艺进行了优化,并研究了优化前后T300/BA9913复合材料的内部质量、基本力学性能及玻璃化转变温度。

关键词: 高韧性环氧树脂, BA9913, 固化动力学, 玻璃化转变温度, TTT图

Abstract: In this paper, the cure kinetic parameters of the toughed epoxy resin (BA9913) were gained by dynamic DSC analysis based on the phenomenological model. Also, the phenomenological model of BA9913 resin was established. The curing degree of BA9913 were determined under different heating time at 100 ℃. Then, the relationship between curing degree and heating time of BA9913 resin was investigated with Dibenedetto equation based on the tested data, and the equation of glass transition temperature and curing time were obtained. The relationship between conversion at gelation and glass transition temperature of BA9913 resin was also obtained by shear modulus testing method. Then, the time-temperature-transition (TTT) diagram was presented based on the above results. Two kinds of T300/BA9913 composites under different isothermal time were manufactured by the guide of the TTT diagram. The internal quality, basic mechanical property and glass transition temperature of them were studied. The result show that the curing curve of T300/BA9913 now in use could be further optimized.

Key words: the toughed epoxy resin, BA9913, cure kinetic, glass transition temperature, time-temperature-transition diagram

中图分类号:

TB332

张晨乾, 陈蔚, 关志东, 叶宏军. BA9913环氧树脂固化动力学和TTT图[J]. 玻璃钢/复合材料, 2017, 0(2): 48-53.

ZHANG Chen-qian, CHEN Wei, GUAN Zhi-dong, YE Hong-jun. CURE KINETICS AND TTT-DIAGRAM OF THE BA9913 RESIN[J]. Fiber Reinforced Plastics/Composites, 2017, 0(2): 48-53.

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