聚酰亚胺酞菁铜复合薄膜的制备及其表征毕业论文
2022-04-05 19:53:27
论文总字数:18022字
摘 要
酞菁铜化合物具有一种大环共轭体系,结构特殊、性能稳定,同时由于具有化学稳定性、电导性等相关特性而引起了人们的广大兴趣。但是人们最关注的是大环化合物的光学性质,由于小分子酞菁容易产生自聚,为了更好的对其研究,发挥其本身的特性,需要将其与一些优异的聚合物相接。聚酰亚胺具有比较优异的机械性能、耐热性能、电性能及良好的化学物理稳定性能等,可以与酞菁铜相结合。因此将酞菁铜掺杂到聚酰胺酸溶液中,再形成聚酰亚胺,最后形成的薄膜不仅能够利用酞菁铜的光学性质也能够更好的拓宽聚酰亚胺薄膜的应用领域。
本论文以4,4’-二氨基二苯醚(ODA)和均苯四甲酸二酐(PMDA)为原料,酞菁铜(CuPc)粉末作为填料,通过原位聚合法制备出掺杂酞菁铜的聚酰亚胺复合薄膜。通过合成不同填料含量的酞菁铜/聚酰亚胺薄膜,并对复合薄膜的红外,紫外,玻璃化温度等做一一研究。
采用傅立叶红外光谱证明了聚酰亚胺的结构,通过紫外-可见光吸收光谱验证酞菁铜的存在。通过静态热机械分析仪测试了所制备的薄膜玻璃化转变温度在350℃左右,说明其稳定性较好。
关键词:聚酰亚胺 复合薄膜 酞菁铜 玻璃化转变温度
Preparation and characterization of polyimide / copper phthalocyanine composite films
ABSTRACT
Phthalocyanine copper compounds are a large ring conjugated system and its structure and properities is unique, which have been causing more interest due to special properities such as chemical stability, conductivity characteristics and so on. But the optical performance of phthalocyanine compounds is the most attention property, However, small molecule phthalocyanine is too easy self-aggregation to influenced its optical properities. Polyimide can be combined with the compounds, having excellent mechanical properities, heat resistance, electric performance and good chemical physics, etc.We are introduced the phthalocyanine molecules into the polyimide, not only can use optical properities of the phthalocyanine compounds, but also will be better able to broaden the application field of play to the polyimide film.
In this dissertation, using 4,4`-diaminodiphenyl ether and pyromellitic dianhydride as material, phthalocyanine copper powder as filler, the composite films were prepared by in situ polymerization. Synthesis a series of phthalocyanine functionalized polyimide composite films and some performances are studied.
The polyimide structure were proved by foxxrier transtorm infrared(FT-IR)spectroscopy and the structures of phthalocyanine copper were instructed by ultraviolet-visible(UV-vis)spectroscopy. Through static thermal mechanical analyzer measurement for the glass transition temperature of composite films was about 350℃, it can explain its good stability.
Key words: Polyimide composite film Phthalocyanine copper
Glass transition temperature
目 录
摘 要 I
Abstract II
第一章 文献综述 1
1.1 聚酰亚胺的介绍及其合成方法 1
1.2 聚酰亚胺的分类及其性能特点 2
1.3聚酰亚胺的应用 4
1.4 酞菁铜的概述及性质 6
1.5 酞菁铜的合成及应用 7
1.6 聚酰亚胺的发展现状 9
1.7 本文研究的内容及意义 10
第二章 实验部分 12
2.1 引言 12
2.2 实验部分 12
2.2.1 实验原料及试剂 12
2.2.2 实验仪器 13
2.2.3 复合材料试样制备 13
2.2.4 表征方法 14
第三章 实验结果与讨论 15
3.1 薄膜力学性能分析 15
3.2 薄膜红外光谱分析 16
3.3 薄膜紫外-可见光谱分析 18
3.4 玻璃化温度测定 19
结 论 20
参考文献 21
致 谢 24
第一章 文献综述
1.1 聚酰亚胺的介绍及其合成方法
1.1.1 聚酰亚胺
聚酰亚胺(Polyimide简称PI)是芳香族二胺和芳香二酐缩聚而成的环链状聚合物,是一类新型耐高温材料[1],能在300甚至400摄氏的温度下长期工作,熔点不够明显,具有良好的绝缘性能和极好的抗高温性能[2],满足了各类电缆外包线的要求,是当今社会电子行业甚至航空领域不可或缺的高性能材料。其结构式如图1-1。
图1-1 聚酰亚胺结构式
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