农业机械维修用环氧树脂胶粘剂的研制  

Development of epoxy resin adhesive for agricultural machinery maintenance

作　　者：王东霖 李守忠[1] Wang Donglin;Li Shouzhong(College of Engineering,China Agricultural University,Beijing 100083,China)

机构地区：[1]中国农业大学工学院,北京100083

出　　处：《中国胶粘剂》2023年第5期24-28,共5页China Adhesives

基　　金：(横向)精密定位平台的设计与开发项目(69191045)。

摘　　要：以端氨基液体丁腈橡胶(ATBN)和表面硅烷偶联化处理的铝粉为改性剂,制备了用于农业机械快速修复的环氧树脂胶粘剂。考察了铝粉用量、ATBN用量对胶粘剂粘接性能的影响。研究结果表明:环氧树脂胶粘剂的适用期随着铝粉的增多不断延长,随着铝粉用量或ATBN用量的不断增加,胶粘剂对铝合金的粘接强度呈现先升高后降低的趋势。当改性铝粉和ATBN用量分别为20和15份(相对于环氧树脂质量100份而言)时,环氧树脂胶粘剂的综合性能相对较好,其适用期为37 min,拉伸剪切强度和浮辊剥离强度分别为29.5 MPa和5.4 kN/m。该胶粘剂具有优异的耐介质性能和耐热性能,不仅可用于农业机械的日常维修保养,还可用于其他领域多种金属材料和非金属材料的结构粘接。With amino-terminated liquid acrylonitrile-butadiene rubber(ATBN)and silane couplingtreated aluminum powder as modifiers,epoxy resin adhesive for quick repair of agricultural machinery was prepared.The effects of aluminum powder and ATBN dosage on the bonding properties of adhesive were investigated.The research results showed that the pot life of epoxy resin adhesive was prolonged with the increase of aluminum powder using amount.With the continuous increase of aluminum powder dosage or ATBN dosage,the bonding strength of adhesive on aluminum alloy was increased first and then decreased.When the using amount of aluminum powder and ATBN was 20 and 15 phr respectively(relative to the mass of 100 phr epoxy resin),the comprehensive performance of epoxy resin adhesive was relatively good,its pot life was 37 min,tensile shear strength and floating roll peel strength were 29.5 MPa and 5.4 kN/m respectively.The adhesive had excellent medium resistance and heat resistance,which could be used not only for daily maintenance of agricultural machinery,but also for structural bonding of various metallic and non-metallic materials in other fields.

关 键 词：环氧树脂 胶粘剂 室温固化 农业机械 维修 

分 类 号：TQ437.4[化学工程]