均苯四甲酸酐固化聚丁二烯环氧树脂胶粘剂的研究  

Study on the ELPB adhesive cured by PMDA

作　　者：王金伟[1] 冯娇[1] 秦树超[1] 何业东[1] 李晓刚[1] 李丙霞[2] 

机构地区：[1]北京市腐蚀、磨蚀及表面工程重点实验室,北京科技大学材料科学与工程学院,北京100083 [2]燕山石化集联化工公司,北京102400

出　　处：《中国胶粘剂》2008年第4期10-13,共4页China Adhesives

基　　金：北京市重点实验室基金资助项目(SYS100080419)

摘　　要：采用均苯四甲酸酐(PMDA)固化聚丁二烯环氧树脂(ELPB),制备了ELPB/PMDA耐高温胶粘剂,并使用傅里叶红外光谱仪(FT-IR)、热重分析仪(TGA)、拉力机和数码显微镜对固化产物的性能进行了表征。实验结果表明,在200℃固化2h的条件下,PMDA可以对ELPB成功地固化;固化后的胶粘剂具有良好的耐热性能,其失重3%时的分解温度为300℃;该胶粘剂对铝/铝合金的粘接强度达到15MPa;剪切破坏是以内聚破坏为主的混合破坏,表明该胶粘剂对金属有较好的粘接性能。The high temperature resistant adhesive was prepared based on liquid poly （1,2-butadiene） epoxy resin（ELPB） cured by pyromellitic dianhydride（PMDA）. The performances of PMDA/ELPB adhesive were characterized by FT-IR, TGA, tensile machine and digital microscope. The experimental results showed that ELPB could be successfully cured by PMDA under 200 ℃ for 2 h, this adhesive has high thermal stability in air because thermal decomposition temperature at weight loss 3% could reach above 300 ℃, the shear strength of Al-Al alloy could attain 15 MPa by this adhesive, this adhesive has better bonding strength on metals because the rupture of the bonding surface was a mixture breakage with cohesive breakage as mainly type.

关 键 词：聚1 2-丁二烯环氧树脂 均苯四甲酸酐 胶粘剂 热稳定性 剪切强度 

分 类 号：TQ433.437[化学工程]