新材料与新技术

一种非热压罐成型中温固化高温使用环氧预浸料研究

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  • 1.中国航空制造技术院复合材料技术中心,北京101300;
    2.中航复合材料有限责任公司,北京101300
乌云其其格(1968-),女,博士,研究员,主要从事树脂基复合材料方面的研究,E-mail:wuyunqiqige2006@126.com。

收稿日期: 2020-03-31

  修回日期: 2021-03-18

  网络出版日期: 2021-06-29

Study on epoxy prepreg with medium curing and high service temperature based on OOA molding

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  • 1. AVIC Composite Technology Center,Beijing 101300;
    2. AVIC Composite Corporation Ltd.,Beijing 101300

Received date: 2020-03-31

  Revised date: 2021-03-18

  Online published: 2021-06-29

摘要

研制了一种非热压罐(OOA)成型耐热环氧复合材料用中温固化高温使用环氧树脂,对树脂进行流变性能、凝胶时间和差示量热(DSC)分析,确定预浸料制备工艺和固化工艺。采用热熔法制备OOA成型用预浸料,通过OOA法、模压法和热压罐法成型复合材料层合板,采用不同工艺参数固化和后处理,进行玻璃化转变温度和力学性能测试。结果表明:OOA成型预浸料的复合材料性能与模压法和热压罐法成型复合材料性能相当。OOA成型预浸料可以135℃固化,也可以150℃固化。后处理后玻璃化转变温度会进一步提高,力学性能与高温固化环氧树脂复合材料相当。

本文引用格式

乌云其其格, 张宝艳, 马连勇, 李峰, 相磊 . 一种非热压罐成型中温固化高温使用环氧预浸料研究[J]. 化工新型材料, 2021 , 49(6) : 121 -125 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.06.027

Abstract

A kind of epoxy prepreg with medium curing temperature and high service temperature based on OOA (non-autoclave) was developed.The rheological properties,gel time and DSC analysis of the resin were carried out to determine the curing process of the resin.The OOA molding prepreg was prepared by hot melt method,and the composite material plate was formed by a vacuum bag method to perform performance test.The results showed that the properties of composite using the developed epoxy prepreg based on OOA molding was equivalent to those manufactured using molding and autoclave technology.The developed OOA epoxy prepreg can be cured at 135℃,and also at 150℃.And the glass transition temperature of the composite was increased after post processing.The mechanical properties of the composites using the developed epoxy properg was equivalent to the high temperature cured epoxy composite.

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