一种新型室温固化、耐高温环氧树脂体系及其性能

doi:10.11944/j.issn.1000-0518.2016.02.150223

摘要/Abstract

摘要：

采用1-己基-3-甲基咪唑四氯化铁盐([C₆mim]FeCl₄)与混合胺复配室温(20 ℃)固化双酚A型环氧树脂E-51,并与其它脂肪胺类室温固化E-51体系在力学性能、热性能、耐老化性能方面的数据进行了比较,同时分析了[C₆mim]FeCl₄不同添加量对固化体系性能的影响,结果显示:[C₆mim]FeCl₄/混合胺复配室温固化E-51体系的室温拉伸强度可达90 MPa,高温(120 ℃)下也保持了良好的力学性能,热失重(5%)分解温度为310 ℃,200 ℃老化7 d后,拉伸强度为28 MPa,是一种可在高温下使用的新型环氧树脂室温固化体系。

关键词: 己基甲基咪唑四氯化铁盐, 双酚A型环氧树脂, 室温固化剂, 性能

Abstract:

Bisphenol-A epoxy resin E-51 was cured by [C₆mim]FeCl₄ and mixed amines at room temperature(20 ℃). Compared to other E-51 systems which were cured by aliphatic amine, E-51 systems cured by [C₆mim]FeCl₄/mixed amine have better mechanical properties, thermal properties, and aging properties. The effect of the amount of [C₆mim]FeCl₄ on the properties of the cured epoxy resin systems was also investigated. Tensile strength of the [C₆mim]FeCl₄/mixed amine cured E-51 system reaches 90 MPa, and the system maintains its excellent mechanical properties at high temperature(120 ℃). The TGA result shows that the decomposition temperature is 310 ℃ when the mass loss of epoxy system reaches 5%. Even after 7 days aging at 200 ℃, the tensile strength of the [C₆mim]FeCl₄/mixed amine cured epoxy resin system is 28 MPa. Therefore, the [C₆mim]FeCl₄/mixed amine cured epoxy resin system is a new type of epoxy resin cured system which can be applied under high temperature.

Key words: hexyl-methylimidazole iron tetrachloride, bisphenol-a epoxy resin, room temperature curing agent, properties

胡三明, 魏巍, 杨天博, 郑春柏, 郑昌梅, 邓鹏飏. 一种新型室温固化、耐高温环氧树脂体系及其性能[J]. 应用化学, 2016, 33(2): 175-180.

HU Sanming, WEI Wei, YANG Tianbo, ZHENG Changmei, ZHENG Chunbai, DENG Pengyang. Properties of a New Type Heat-Resistant System of Epoxy Resin Cured at Room Temperature[J]. Chinese Journal of Applied Chemistry, 2016, 33(2): 175-180.

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