环氧树脂改性聚氨酯热熔胶黏剂力学性能的研究  

Study on Mechanical Performance of Epoxy Resin Modified Polyurethane Hot-melt Adhesive

作　　者：詹中贤[1] 曹祺风[2] 

机构地区：[1]洛阳吉明化工有限公司,河南洛阳471012 [2]河南科技大学化工与制药学院,河南洛阳471003

出　　处：《化学与粘合》2007年第4期244-247,共4页Chemistry and Adhesion

摘　　要：为了提高聚氨酯热熔胶黏剂的力学性能,采用PBA与MDI合成PU,与环氧树脂按不同质量比例进行共聚,用红外光谱分析了PU/环氧树脂(EP)共混物之间的反应及其形态特征,发现聚合物两相间形成了互穿网络,除生成氨基甲酸酯外,还生成了PU-NHCOO-EP和恶唑酮等结构,并存在化学交联,测试了PU/环氧树脂(EP)不同质量比对其机械物理性能、剪切强度和耐温性能的影响,结果表明,环氧树脂占混合物质量的20%时其机械物理性能、剪切强度和耐温性能达到最佳。In order to improve mechanical performance of polyurethane hot - melt adhesive, PU was synthesized with PBA and MDI, and copolymerized with epoxy resin in different mass ratios. The reaction and modal modality of PU/EP were studied by FTIR. The result showed interpenetrating network polymer formed in the phase of polymers, and carbamate, PU - NHCOO - EP and structures formed in the blends, and there was a chemical cross - link. Effects of mass ratio on mechanical performance, shear strength and heat resistance were tested. The resuh showed that these performances were excellent when the content of EP was 20% （ mass ratio） of blends.

关 键 词：环氧树脂 聚氨酯 热熔胶黏剂 互穿网络 

分 类 号：TQ436.4[化学工程]