采用加热法和常温催化法,将固化剂2,2-丙炔基丙二酸二甲酯(DDPM)与聚叠氮缩水甘油醚(GAP)按摩尔比2:1、4:1和8:1的配比进行固化反应。利用微机控制电子试验机测试制得样品的拉伸及压缩性能,并对数据进行了分析比较。结果表明:增加固化剂可以提高固化产物的抗拉及抗压强度;DDPM与GAP的摩尔比为2:1和4:1时,常温催化法制得样品的抗拉和抗压性能较优;DDPM与GAP的摩尔比为8:1时,加热法制得样品的抗拉和抗压性能较优,但弹性较差。
The curing reaction was carried out by heating method and room temperature catalytic method with the molar ratio of curing agent 2,2-propargyl dimethyl malonate (DDPM) to glycidyl azide polymer (GAP) of 2:1,4:1 and 8:1.The tensile and compressive properties of the samples were tested by microcomputer controlled electronic testing machine,and the data were analyzed and compared.The results shown that the tensile and compressive strength of cured products can be improved by adding curing agent.When the molar ratio of DDPM to GAP was 2:1 and 4:1,the tensile and compressive properties of the samples prepared by room temperature catalytic method were better.When the molar ratio of DDPM to GAP was 8:1,the tensile and compressive properties of the samples prepared by heating method were better,but the elasticity was poor.
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