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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 the effect of hydrogen storage alloys on the properties of GAP cured films, GAP cured films containing hydrogen storage alloys were prepared using polyisocyanate (N100) as the curing agent. The cured film was characterized by infrared spectroscopy (FTIR) and the activation energy, gel fraction and mechanical properties of the cured film were tested. The experimental results show that the hydrogen storage alloy can react with -OH on GAP to form a chemical crosslinking point. Adding hydrogen storage alloy to the cured film can reduce the activation energy, increase the gel fraction and promote the formation of three-dimensional network structure, Mechanical properties. At 20% addition, A30 exhibited the strongest promoting effect on the formation of three-dimensional network structure of cured film, which reduced the activation energy of cured film by 27.97%, the gel fraction by 5.44%, the tensile strength by 131% and the extension Increased by 31%.