环氧胶接接头在碱介质中的老化行为研究  

Aging Performance of Epoxy Bonded Joint in Alkali Media

作　　者：高岩磊[1] 崔文广[1] 熊金平[2] 李英[1] 韩卫荣[1] 

机构地区：[1]石家庄学院化工学院,石家庄050035 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《腐蚀科学与防护技术》2010年第5期415-417,共3页Corrosion Science and Protection Technology

基　　金：国家自然科学基金资助项目(50499334)

摘　　要：研究了环氧胶接接头在碱性介质中的老化行为,并用傅立叶红外光谱仪(FTIR)和扫描电镜(SEM)分析了其失效的机理.结果表明,环氧胶接接头在碱性介质中老化后,其剪切强度明显降低;提高温度会缩短环氧胶接接头在NaOH溶液中的老化寿命;胶粘剂分子链的降解是环氧胶接接头胶接性能降低的主要原因.The effect of alkali media on the aging performance of epoxy bonded joint was investigated and the relevant failure process was analyzed by FTIR and SEM.The results showed that the shear strength of epoxy bonded joint decreased significantly after aged in alkali media, and the lifetime of the joint was shorten in alkali media when the media temperature increased. The reason for reduction of bonding performance of epoxy bonded joint was the degradation of epoxy adhesive.

关 键 词：环氧胶接接头 老化行为 碱介质 

分 类 号：TG172.9[金属学及工艺—金属表面处理]