聚醚砜/环氧树脂共混体系流变特性与固化性能的研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (3): 33-37.

聚醚砜/环氧树脂共混体系流变特性与固化性能的研究

蒋民强^1,2,程超^1,2,张辉^1,2,3*,余木火^1,2,3,4*

1.东华大学材料科学与工程学院,上海201620;
2.东华大学纤维材料改性国家重点实验室,上海201620;
3.上海市轻质结构复合材料重点实验室,上海201620;
4.民用航空复合材料协同创新中心,上海201620

收稿日期:2017-10-09 出版日期:2018-03-20 发布日期:2018-03-20
通讯作者: 张辉(1984-),男,博士,讲师,主要从事生物纤维及其复合材料等方面的研究,zhanghui@dhu.edu.cn。余木火(1961-),男,博士,教授,主要从事纤维增强树脂基复合材料等方面的研究,yumuhuo@dhu.edu.cn。
作者简介:蒋民强(1992-),男,硕士,主要从事复合材料增韧技术方面的研究。
基金资助:
上海市科学技术委员会科研计划项目(15JC1400300);中央高校基本科研业务费专项资金(16D110623)

STUDY ON RHEOLOGICAL PROPERTIES AND CURING PERFORMANCE OF PES/EPOXY RESIN MIXTURE SYSTEM

JIANG Min-qiang^1,2, CHENG Chao^1,2, ZHANG Hui^1,2,3*,YU Mu-huo^1,2,3,4*

1.College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
2.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China;
3.Key Laboratory of Shanghai City for Lightweight Composites, Shanghai 201620, China;
4.Center for Civil Aviation Composites, Shanghai 201620, China

Received:2017-10-09 Online:2018-03-20 Published:2018-03-20

摘要/Abstract

摘要： 环氧树脂是一种性能优良的热固性树脂,但是存在抗冲击性能差的缺点。聚醚砜(PES)是一种高性能热塑性树脂,与环氧树脂共混能够改善环氧树脂的韧性。系统研究了不同PES含量的PES/环氧树脂共混体系的流变特性和固化性能。通过对等温粘度曲线的数据拟合分析,建立了粘度模型,分析了PES对PES/环氧树脂共混体系粘度的影响机理,并通过DSC测试研究了PES对共混体系固化性能的影响。结果表明,PES在环氧树脂中的溶解过程可以引起共混体系粘度的波动,PES的引入缩短了PES/环氧树脂共混体系的凝胶时间,而且PES中的羟基对环氧树脂的固化具有促进作用。

关键词: 环氧树脂, 聚醚砜, 流变特性, 固化性能

Abstract: Epoxy resin is a kind of thermosetting resin with good properties. However, it has the inherent weakness of poor shock resistance. Polyethersulfone (PES) is a kind of thermoplastic resin with good properties which can improve the toughness of epoxy resin by blending with epoxy resin. The rheological properties and curing performance of PES/epoxy resin mixture system with different PES content were studied systematically in this paper. A viscosity model was established according to the obtained rheological data of isothermal viscosity curves, and the mechanism of the effect of PES on the curing of PES/epoxy resin mixture system was analyzed. The influence of PES on the curing performance of PES/epoxy resin mixture system was also studied by DSC test. The results show that the dissolution of PES in epoxy resin could lead to the fluctuation of viscosity of the mixture system. The introduction of PES shortened the gel time of PES/epoxy resin mixture system, and the hydroxyl groups in PES promoted the curing of the epoxy resin.

Key words: PES, epoxy resin, rheological properties, curing performance

中图分类号:

TB332

蒋民强,程超,张辉,余木火. 聚醚砜/环氧树脂共混体系流变特性与固化性能的研究[J]. 玻璃钢/复合材料, 2018, 0(3): 33-37.

JIANG Min-qiang, CHENG Chao, ZHANG Hui,YU Mu-huo. STUDY ON RHEOLOGICAL PROPERTIES AND CURING PERFORMANCE OF PES/EPOXY RESIN MIXTURE SYSTEM[J]. Fiber Reinforced Plastics/Composites, 2018, 0(3): 33-37.

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