摘要聚酰胺酸（PAA）低温酰亚胺化法制备聚酰亚胺（PI）在热塑性材料制备、拓宽PI在电子行业中的应用有着重要的意义。本论文采用二步法合成PI，以喹啉（QL）为固化催化剂。在有效降低PAA酰亚胺化温度的同时，PI薄膜仍能保持优良的综合性能。并探究了催化剂用量、固含量、亚胺化温度对PI涂层胶亚胺化程度以及PI薄膜综合性能的影响。
结果表明：QL与二酐单体摩尔之比为1.5:1时，PAA的亚胺化程度最高，PI薄膜综合性能最好。能使PAA最大程度固化的最低温度为200℃。固含量为20%时，PAA的亚胺化程度最高，PI薄膜的综合性能最好。因此，亚胺化反应的最佳条件是：QL与二酐单体摩尔比为1.5:1，固含量为20%，亚胺化温度为200℃。34002
关键词：聚酰亚胺薄膜、低温酰亚胺化、喹啉、聚酰胺酸、涂层胶
毕业论文设计说明书外文摘要
Title Effect of low temperature curing agent for the imidization degree of polyimide coating
Abstract
The imidization of polyamic acid(PAA) to synthesize polyimide(PI) at low temperature have significance in the use of microelectronics industry.In this paper, PI coatings of BAPP-ODA-BTDA type were prepared in NMP. In order to lower the imidization temperature and keep PI excellent comprehensive properties, Quinoline was found to be an effective curing accelerator in the use of two-step method for synthesizing PI.Further, the effect of accelerator dosage,solid content and imidization temperature in the process of chemical imidization of PAA was investigated. The results showed that: when n(QL):n(BTDA)=1.5:1,the degree of imidization is the highest and the mechanical properties and thermal properties is also best. The lowest imidization temperature was found to be 200℃. When the solid content is 20%, the PI coating of BAPP-ODA-BTDA type has the best comprehensive properties. In conclusion, the best imidization condition was n(QL):n(BTDA)=1.5:1, solid content was 20%, the imidization temperature was 200℃.
Keywords: polyimide film; imidization at low temperature; Quinoline; polyamic acid; coating
目 次
1 绪论 1
1.1 PI简介 1
1.1.1 PI的分类 1
1.1.2 PI的性质 2
1.2 低温固化型PI 2
1.2.1 低温固化型PI的方法 2
1.2.2 低温固化型PI的分类 3
1.2.3 低温固化型PI的应用 6
1.3 现阶段研究存在的问题 7
1.4 本课题的主要研究内容及目标 7
2 实验部分 8
2.1 实验原料及仪器 8
2.1.1 实验原料 8
2.1.2 实验仪器 8
2.2 实验内容 9
2.2.1 不同喹啉（QL）用量BAPP-ODA-BTDA型PI的制备 9
2.2.2 不同PAA固含量的BAPP-ODA-BTDA型PI的制备 9
2.2.3 不同亚胺化温度的BAPP-ODA-BTDA型PI的制备 10
2.3 性能测试 11
2.3.1 PI涂层胶表观粘度的测试 11
2.3.2 PI薄膜红外光谱分析(FTIR) 11
2.3.3 PI薄膜力学性能测试 12
2.3.4 PI薄膜热稳定性测试(TG) 12
2.3.5 PI涂层胶的附着力测试 12
3 实验结果与讨论 13
3.1 实验过程的注意事项 13
3.1.1 药品与仪器的干燥 13
3.1.2 热处理后的自然冷却 13
3.2 催化剂用量对QL催化PAA亚胺化程度及材料性能的影响 13 低温固化剂对聚酰亚胺涂层胶亚胺化程度的影响:http://www.751com.cn/huaxue/lunwen_31355.html