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出 处:《聚氨酯工业》2016年第2期12-14,18,共4页Polyurethane Industry
摘 要:用差示扫描量热法(DSC)研究了六硝基六氮杂异伍兹烷(CL-20)与发射药粘结剂热塑性聚氨酯弹性体的热分解,并研究了它们之间的相容性即相容热稳定性。结果表明,用Kissinger法和Ozawa法得到的活化能(E)值结果相一致,且E值计算结果不能表明粘结剂使CL-20的稳定性发生改变。加热速率趋于零时,CL-20与聚叠氮缩水甘油醚(GAP)基含能热塑性聚氨酯弹性体(ETPU)相容,与普通热塑性聚氨酯弹性体(TPU)相容性差;在加热速率为2℃/min时,CL-20与ETPU相容,与TPU不相容,加热速率改变时得到的相容性结果不变。The thermal decomposition behavior of hexanitrohexaazaisowurtzitane (CL-20) with gun-propellant binders based on thermoplastic polyurethane(TPU) was studied by DSC. The kinetic parameters of thermal decomposition were calculated by the Kissinger and Ozawa methods, and the compatibility of them was studied. The results showed that the thermal decomposition data obtained by Kissinger method was about same as the Ozawa method. The study of the apparent activation energy didn't indicate a change in thermal decomposition stability of CL-20 when the TPU binders were added in CL-20. When heating rate approached to zero, CL-20 was compatible with polyglycidyl azide contained energetic TPU( ETPU), and incompatible with TPU. At a heating rate of 2 ℃/min, CL-20 was compatible with ETPU and incompatible with TPU too. So the results of compatibility had no change with the heating rate changing.
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