DDM/EP/CTBN增韧BMI耐高温胶合成工艺研究  

Preparation and characterization of DDM/EP/CTBN toughened BMI-based heat-resistant adhesives

作　　者：胡飞[1] 张良均[1] 樊庆春[1] 童身毅[1] 

机构地区：[1]武汉工程大学绿色化工过程省部共建教育部重点实验室,湖北武汉430073

出　　处：《粘接》2008年第10期9-13,共5页Adhesion

摘　　要：以N,N-′4,4′-二氨基二苯甲烷型双马来酰亚胺(BM I)、环氧树脂(EP)、4,4′-二氨基二苯甲烷(DDM)为主要原料,合成了2种以BM I为基体的耐高温胶粘剂,分析了DDM、EP用量对胶粘剂性能的影响。采用差示扫描量热、红外光谱、热重分析表征了产物的反应程度、结构和热稳定性。结果表明,2种工艺都采用mBM I∶mEP∶mDDM=1∶1∶0.85时综合性能最优,在相同的固化条件下,共熔型体系耐高温实验强度(30.07 MPa)优于预聚型体系(27.33 MPa),但耐温冲击实验强度(29.83 MPa)不如后者(31.58 MPa)。Two BMI（bismaleimides）-based heat-resistant adhesives were prepared with BMI, EP （epoxy resin） and DDM （4,4＇-diaminodiphenyl methane） as the raw materials. The influence of amount of DDM and EP on properties of the adhesives was investigated. The reaction extent, structure and thermal stabitity of the modified resin were measured with DSC, IR and TG,respectively. The results showed that the properties was the best when the composi- tion was mBMI： mEP： ：mDDM = 1： 1： 0. 85. Under the same condition,the heat-resistance of the co-melting system was better than that of the prepolyme system, but the result of temperature shock test for the co-melting syetem was worse than the latter.

关 键 词：双马来酰亚胺 环氧树脂 端羧基液体丁腈橡胶 胶粘剂 

分 类 号：TQ433.437[化学工程]