CAJ | 학술논문

采用 DSC?TG、热裂解原位 FTIR 联用技术，研究了 AlH3和 AlH3／ PEG／ NG／ BTTN 体系的热分解特性。结果表明， AlH3在约190℃发生吸热分解；AlH3／ PEG／ NG／ BTTN 中，硝酸酯的放热分解在176℃，明显提前于 PEG／ NG／ BTTN 体系；基于原位红外光谱分析可知，AlH3的引入促进了 AlH3／ PEG／ NG／ BTTN 体系中硝酸酯 O—NO2基团的分解，从而降低了AlH3／ PEG／ NG／ BTTN 体系的热安定性。
채용 DSC?TG、열렬해원위 FTIR 련용기술，연구료 AlH3화 AlH3／ PEG／ NG／ BTTN 체계적열분해특성。결과표명， AlH3재약190℃발생흡열분해；AlH3／ PEG／ NG／ BTTN 중，초산지적방열분해재176℃，명현제전우 PEG／ NG／ BTTN 체계；기우원위홍외광보분석가지，AlH3적인입촉진료 AlH3／ PEG／ NG／ BTTN 체계중초산지 O—NO2기단적분해，종이강저료AlH3／ PEG／ NG／ BTTN 체계적열안정성。
The thermal decomposition properties of AlH3 and AlH3 / PEG/ NG/ BTTN were studied by means of TG?DSC and in?situ thermolysis?FTIR coupling techniques.The results obtained from DSC?TG and FTIR show that the endothermic decomposition of AlH3 occurs at about 190 ℃ .The thermal decomposition temperature of NG/ BTTN shifted to lower temperature in the presence of AlH3 .The decomposition peak temperature of NG/ BTTN is 176 ℃ .The main functional groups of the AlH3 / PEG/ NG/ BTTN system were studied based on in?situ thermolysis?FTIR coupling techniques.The results show that the decomposition temperature of O—NO2 groups in the AlH3 / PEG/ NG/ BTTN system is notably lower than that in PEG/ NG/ BTTN system,reducing the thermal stability of AlH3 / PEG/ NG/ BTTN system.