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以ATP为粘合剂、N-100为固化剂制备出ATP弹性体,并进行了性能表征。采用DSC/TG-FTIR-MS联用技术、高压DSC技术和热裂解快速扫描傅里叶变换红外技术(RSC/FITR),研究了叠氮类粘合剂ATP弹性体热分解过程,获得了ATP弹性体的热反应动力学参数,并提出了可能的分解机理。结果表明,ATP弹性体的热分解分为3个阶段:首先,RN—N2键的断裂生成的氮宾经重排生成亚胺,且放出N2;其次,亚胺再经H转移和自由基再结合生成NH3;第3个阶段为聚合物骨架的热分解,释放出HCN、CO、HCHO、NO2、H2O、HCNO、和CO2等气体。
ATP elastomer was prepared with ATP as binder and N-100 as curing agent, and characterized. The thermal decomposition process of the azide-based adhesive ATP elastomer was studied by DSC / TG-FTIR-MS, high-pressure DSC and pyrolysis fast scanning Fourier transform infrared spectroscopy (RSC / FITR) The thermal reaction kinetic parameters of the elastomer and the possible decomposition mechanism are proposed. The results show that the thermal decomposition of ATP elastomer is divided into three stages: firstly, the nitrogen generated by the breakage of RN-N2 bonds rearranges to generate imine and releases N2; secondly, the imine undergoes H-transfer and radical recombination The third stage is the thermal decomposition of the polymer skeleton, releasing gases such as HCN, CO, HCHO, NO2, H2O, HCNO, and CO2.