储氢合金对GAP固化胶片性能的影响

Effects of hydrogen storage alloy on properties of GAP binder films

为研究储氢合金对聚叠氮缩水甘油醚(GAP)固化胶片性能的影响,以多异氰酸酯(N100)为固化剂,制备出含储氢合金的GAP固化胶片。采用红外光谱(FTIR)等手段对固化胶片进行了表征,并对其固化反应活化能、凝胶分数和力学性能进行了测试。实验结果表明,储氢合金可和GAP上的—OH发生反应形成化学交联点;固化胶片中添加储氢合金,可降低其固化活化能,提高凝胶分数,促进三维网络结构的形成,提高力学性能。在添加量为20%处,A30对固化胶片三维网络结构的形成表现出最强的促进作用,使固化胶片的活化能降低27.97%,凝胶分数提高5.44%,拉伸强度提高131%,延伸率提高31%。

In order to study effects of hydrogen storage alloy on the properties of glycidyl azide polymer（GAP） binder films,GAP binder films was made using multi-isocyanate（N100） as curing agent.GAP binder films were characterized by infrared spectroscopy（FTIR）,and their curing activation energy,gel fraction and mechanical property were determined.Results show that hydrogen storage alloy reacted with —OH on GAP and formed chemical cross-links;Curing activation energy was reduced and gel fraction was increased to promote,formation of three-dimensional network structure and enhance mechanical property when hydrogen storage alloy was added into GAP binder films.At the dosage of 20%,A30 showed the strongest effect on three-dimensional network structure formation of binder film,decreasing curing activation energy by 27.97%,promoting gel fraction by 5.44%,tensile strength by 131% and elongation by 31%.