纳米SiO<sub>2</sub> 对双酚A环氧树脂电子束固化特性的影响

李红霞; 张佐光; 李玉彬

纳米SiO₂ 对双酚A环氧树脂电子束固化特性的影响

北京航空航天大学材料科学与工程学院, 北京 100083

基金项目: 国家自然科学基金项目(59833110); 国家863 项目(2001AA335020)

详细信息

通讯作者:
张佐光,教授,博士生导师,主要从事树脂基复合材料的研究 E-mail:zgzhang@buaa.Edu.cn

中图分类号: TB332;O644.2
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出版历程
- 收稿日期: 2004-07-08
- 修回日期: 2004-09-13
- 刊出日期: 2005-08-14

EFFECT OF NANO-SiO₂ ON ELECTRON BEAM CURING CHARACTERISTICSOF BISPHENOL A EPOXY RESIN SYSTEM

School of Materials Science and Engineering, Beijing University of Aeronautics and Ast ronautics, Beijing 100083, China

施引文献

摘要

摘要: 探讨了电子束固化纳米SiO₂ / 双酚A 环氧树脂复合材料体系的温度、固化度、固化区域的尺寸和动态力学性能随纳米粒子含量的变化规律, 研究了纳米SiO₂ 对体系电子束辐射固化特性的影响。结果表明, 随着纳米粒子含量的增加, 体系的放热峰逐渐降低; 少量纳米粒子的加入有助于增大试样固化区域的尺寸、提高固化度、玻璃化转变温度和高温模量; 纳米SiO₂ 的加入改变了电子束的传播途径, 但其电子束固化生长机制与未加入纳米粒子的纯树脂体系相似。
- 环氧树脂 /
- 电子束固化 /
- 纳米SiO₂ /
- 固化特性
Abstract: NANO-SiO₂ particles were added in the bisphenol A epoxy resin. The curing characteristics of the NANO-SiO₂ / epoxy resin system were researched. The effect s of NANO-SiO₂ content on reaction temperature , gel fraction ,dimension of the cured area and dynamic mechanic performance of the elect ron beam ( EB) cured epoxy resin systemwere investigated. The result s show that the exothermal peak of the curing system decreases with the increasing ofNANO-SiO₂ content , and a small amount of NANO-SiO₂ particles cont ribute to increasing the dimension of the curedarea , gel f raction , glass temperature and high temperature modulus. The growth mechanism of the system withNANO-SiO₂ particles is similar to that without NANO-SiO₂ particles , although the propagation path of EB is changed byNANO-SiO₂ particles.
- epoxy resin /
- elect ron beam cured /
- NANO-SiO₂ /
- curing characteristics