摘要
以不同环氧官能团数量的环氧树脂和不同添加量的固化剂为原料制备了导电胶,通过红外光谱、扫描电子显微镜等手段测试其结构和性能。结果表明,拉伸剪切强度随环氧官能团数目的增加而降低,其中双官能团的环氧树脂DER331所对应的树脂基体和导电胶的拉伸剪切强度最大,树脂基体为31MPa,导电胶为9MPa;随固化剂添加量的增加而增加,当环氧树脂和固化剂质量比为25∶7时,树脂基体为32MPa,导电胶为10MPa;与树脂基体的固化收缩率呈反比关系。
Electrical conductive adhesives were prepared based on epoxy resin with different functional groups and curing agent with different addition,structure and performance were characterized by FT-IR,SEM and other means.The results indicate that tensile shear strength declined with the increase in the number of epoxy functional groups,the largest tensile shear strength of resin matrix is 31MPa and the largest tensile shear strength of ICA is 9MPa when we chose bifunctional of the DER331.Tensile shear strength raised with the addition of curing agent,the tensile shear strength of resin matrix is 32MPa and the tensile shear strength of ICA is 10MPa when the mass ratio of epoxy resin and curing agent is 25∶7.Tensile shear strength was inverse relationship with the curing shrinkage.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第12期1613-1617,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51174085)
湖南省重点学科建设资助项目(0805)
关键词
导电胶
固化剂
固化收缩率
拉伸剪切强度
electrically conductive adhesive
curing agent
curing shrinkage
tensile shear strength
