中国塑料2018，Vol.32Issue(5)：34-40,7.DOI:10.19491/j.issn.1001-9278.2018.05.005
CTBN/PI复合改性环氧树脂的结构与性能
Study on Structure and Properties of Epoxy Resin Modified with CTBN and PI
高原 1任亮 1刘洪岩 2刘青松 3张明耀1
作者信息
- 1. 长春工业大学化学工程学院,长春130012
- 2. 长春永固科技有限公司,长春130012
- 3. 浙江万凯新材料有限公司,浙江嘉兴314415
- 折叠
摘要
Abstract
A diglycidyl ether of bisphenol-A type epoxy resin (DGEBA) was modified by using liquid carboxyl-terminated butadiene acrylonitrile rubber (CTBN) and polyimide (PI) as combining impact modifiers,methylhexahydrophthalic anhydride (MeHHPA) as a curing agent and 2,4,6-tris(dimethylaminomethyl) phenol as a curing accelerator.The effects of CTBN and PI on the mechanical properties,dynamic mechanical properties and morphology of DGEBA were investigated.The results indicated that the Izod impact strength,fracture strength and elongation at break of DGEBA were significantly increased,while the modulus decreased slightly.The modified DGEBA achieved optimum mechanical properties when 20～30 phr of CTBN and 1.5～2.0 phr of PI were incorporated.Moreover,the presence of PI in an appropriate amount could enhance the storage modulus and heat resistance of DGEBA.The scanning electron microscopic observation indicated that the toughening effect was attributed to the plastic deformation of fracture surface.关键词
环氧树脂/端羧基丁腈橡胶/聚酰亚胺树脂/复合改性/性能Key words
epoxy resin/carboxyl-terminated butadiene acrylonitrile rubber/polyimide/combining toughening/property分类
化学化工引用本文复制引用
高原,任亮,刘洪岩,刘青松,张明耀..CTBN/PI复合改性环氧树脂的结构与性能[J].中国塑料,2018,32(5):34-40,7.
