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摘要二氟氨基粘合剂具有热稳定性好、密度大、成热高等特点，是一种非常具有应用与发展前途的新型高能含能材料。本文将采用傅里叶红外光谱法，研究PDFAMO和PBAMO/PDFAMO共聚物两种粘合剂在50℃、60℃、70℃条件下固化反应过程，分析固化反应机理。并采用非等温差示扫描量热法（DSC）研究各体系固化行为，对相应的固化动力学参数进行计算，分析固化反应过程。结果表明，PDFAMO/TPTM体系之间不发生反应；PDFAMO/TDI体系发生氢离子转移；(PBAMO/PDFAMO)/TPTM体系发生的是氢离子转移反应；(PBAMO/PDFAMO)/TDI体系发生偶极环加成反应；(PBAMO/PDFAMO)/TPTM固化反应表观活化能为124.4KJ/mol，指前因子为9.06×104min-1，反应级数为0.932；(PBAMO/PDFAMO)/TDI固化反应表观活化能为62.7KJ/mol，指前因子为58.8min-1，反应级数为0.915。PDFAMO/TDI固化反应表观活化能为105.2KJ/mol，指前因子为3.28×105min-1，反应级数为0.937。26976
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关键词：固化反应；动力学；DSC；IR；PDFAMO/TPTM；PDFAMO
毕业论文设计说明书外文摘要
Title The study of difluoramino adhesive curing reaction process
Abstract
Difluoramino adhesive have good thermal stability, high density and high reaction heat, SO it is a new type high energetic material which has broad application and development prospect. In this paper, we will analysis the curing reaction mechanism of PDFAMO and PBAMO/PDFAMO at 50℃, 60℃, 70℃ by IR. And we have investigated the curing kinetic process by testing cured samples with DSC, the corresponding curing kinetics parameters were calculated. The results show that there is no curing reaction in PDFAMO/TPTM system; PDFAMO/TDI has a process of hydrogen ion; (PBAMO/PDFAMO)/TPTM also has a process of hydrogen ion transfer; (PBAMO/PDFAMO)/TDI system has a dipolar cycloaddition reaction; In the (PBAMO/PDFAMO)/TPTM system, the apparent activation energy is 124.4KJ/mol, pre-exponential factor is 9.06×104 min-1, and reaction series is 0.932. In the (PBAMO/PDFAMO)/TDI system, the apparent activation energy is 62.7KJ/mol, pre-exponential factor is 58.8 min-1, and reaction series is 0.915. In the PDFAMO/TDI system, the apparent activation energy is 105.2KJ/mol, pre-exponential factor is 3.28×105 min-1, and reaction series is 0.937.
Keywords Curing reaction; Dynamics; DSC; IR; PDFAMO/TPTM; PDFAMO
目 录
1 前言 1
1.1 研究目的与意义 1
1.2 国内外研究进展 1
1.3 拟开展的主要研究内容 5
2 二氟氨基粘合剂固化反应过程研究 7
2.1 实验 7
2.2 结果与讨论 8
2.3本章小结 12
3 二氟氨基粘合剂固化反应的非等温DSC研究 13
3.1 试验 13
3.2 结果与讨论 13
3.3 固化反应动力学参数计算 15
3.4 本章小结 16
结 论 18
致 谢 19
参考文献20
1 前言
1.1 研究目的与意义
有关专家预测采用二氟氨基粘合剂制成的氟氨推进剂其能量将达到目前的最高水平，与其他含能预聚物粘合剂相比, 含有二氟氨基的含能预聚物的密度更大、能量更高[1]。目前, 二氟氨基含能预聚物的合成与应用正成为继叠氮类、硝酸酯类等含能预聚物之后热固性含能粘合剂研究的热点。
固化是将粘合剂分子局部交联成有序的聚合物网络的过程，它使粘合剂成为推进剂的“骨架”，确保推进剂或炸药具有良好的力学性能和延伸率。这说明，对二氟氨基粘合剂而言，其固化反应过程与特性是将二氟氨基粘合剂应用于推进剂与炸药的前提与技术支撑。