Based on the cross-linking reaction of bisphenol A epoxy resin and liquid carboxy-terminated poly(tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride) copolymer (CTTHV), the elastomer containing fluoroolefin segment was prepared. The bis(2,2-dinitropropyl)-acetal/formal (BDNPA/F) was used as an energetic plasticizer for this fluoroolefin segment-containing elastomer (FO elastomer). The compatibility of CTTHV and BDNPA/F was evaluated by the combination of differential scanning calorimetry (DSC) and derivative thermogravimetry (DTG) methods. Thermal decomposition of the FO elastomers was investigated by TG-DSC. The kinetic parameters of the FO elastomers were calculated by Kissinger-Akahira-Sunose method. DSC-TG-MS-Fourier transform infrared spectroscopy analysis was used to detect the thermal decomposition products. The thermal decomposition mechanisms of the FO and FO/BDNPA/F elastomers were discussed. The results show that CTTHV has a good compatibility with BDNPA/F, and the prepared FO/BDNPA/F elastomers have good thermal stability. BDNPA/F can promote the thermal decomposition of the FO elastomer and bring more heat for the binder system according to the thermal decomposition behaviors and kinetic calculation results of FO/BDNPA/F elastomers. The FO elastomer preferentially undergoes depolymerization, HF elimination with the formation of polyene sequences, and subsequent main-chain cleavage, polyaromatization. The H ion fragments of the decomposition of BDNPA/F can be an important factor in the improvement of HF concentration at the initial thermal decomposition of FO elastomer. An abundant HF released during all decomposition of FO/BDNPA/F elastomers may be beneficial to the ignition and combustion of aluminum particles in future applications.

中文翻译：

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含氟烯烃链段弹性体热分解的DSC-TG-MS-FTIR研究

基于双酚A环氧树脂与液态端羧基聚（四氟乙烯-六氟丙烯-偏二氟乙烯）共聚物（CTTHV）的交联反应，制备了含氟烯烃链段的弹性体。双（2,2-二硝基丙基）-缩醛/缩甲醛（BDNPA/F）被用作这种含氟烯烃链段的弹性体（FO弹性体）的高能增塑剂。通过差示扫描量热法 (DSC) 和导数热重法 (DTG) 方法的组合评估 CTTHV 和 BDNPA/F 的相容性。通过 TG-DSC 研究了 FO 弹性体的热分解。FO 弹性体的动力学参数通过 Kissinger-Akahira-Sunose 方法计算。DSC-TG-MS-傅立叶变换红外光谱分析用于检测热分解产物。讨论了 FO 和 FO/BDNPA/F 弹性体的热分解机制。结果表明，CTTHV与BDNPA/F具有良好的相容性，制备的FO/BDNPA/F弹性体具有良好的热稳定性。根据FO/BDNPA/F弹性体的热分解行为和动力学计算结果，BDNPA/F可以促进FO弹性体的热分解，并为粘合剂体系带来更多的热量。FO 弹性体优先经历解聚、HF 消除并形成多烯序列，以及随后的主链断裂、多芳构化。BDNPA/F 分解的 H 离子碎片可能是提高 FO 弹性体初始热分解时 HF 浓度的重要因素。