透明聚酰亚胺复合薄膜的制备及性能研究

吴洋, 俞娟*, 黄培

化工新型材料 ›› 2024, Vol. 52 ›› Issue (5) : 83 -87.

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化工新型材料 ›› 2024, Vol. 52 ›› Issue (5) : 83-87. DOI: 10.19817/j.cnki.issn1006-3536.2024.05.005
新材料与新技术

透明聚酰亚胺复合薄膜的制备及性能研究

    吴洋, 俞娟*, 黄培
作者信息 +

Preparation and properties of transparent polyimide composite films

  • Wu Yang, Yu Juan, Huang Pei
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文章历史 +
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摘要

采用八氨基苯基聚倍半硅氧烷(OA-POSS)对Al2O3微球表面进行修饰,再将改性Al2O3均匀分散在以氢化均苯四甲酸二酐(HPMDA)、4,4′-(六氟异丙烯)二酞酸酐(6FDA)、4,4′-二氨基二苯醚(ODA)为单体制备的无色透明聚酰亚胺(CPI)薄膜中。通过傅里叶变换红外光谱仪、紫外-可见分光光度计、导热系数测试仪、热重分析仪等对透明复合薄膜进行表征。结果表明:透明复合薄膜在保持良好机械性能的同时(拉伸强度在92MPa以上),在可见光区仍拥有较高的透光率(透光率超过82%),而且在低Al2O3负载量下,透明复合薄膜的热稳定性、导热性能得到明显改善;制备的透明复合薄膜可作为柔性显示器件的衬底材料以及电子封装材料。

Abstract

The surface of Al2O3 microspheres was modified by octaaminophenyl sesquioxane (OA-POSS) and,and then the modified Al2O3 was homogeneously dispersed in colorless transparent polyimide (CPI) films prepared with hydrogenated homophthalic dianhydride (HPMDA),hexafluorodianhydride (6FDA),and 4,4′-diaminodiphenyl ether (ODA) monomers.The composite films were characterized by infrared spectroscopy,UV-Vis spectrophotometer,thermal conductivity tester,and thermogravimetric analyzer.The results showed that the transparent composite films maintained good mechanical properties (tensile strength above 92MPa) while still exhibiting high light transmission (above 82%) in the visible region.Moreover,the thermal stability and thermal conductivity of the transparent composite films were improved significantly at the low load of Al2O3.The prepared transparent composite films might be used as substrate materials for flexible display devices as well as electronic packaging materials.

关键词

透明聚酰亚胺 / 耐高温 / 导热 / 氧化铝 / 笼型聚倍半硅氧烷

Key words

transparent polyimide / high temperature resistant / thermally conductivity / aluminum oxide / polyhedral oligomeric sesquioxane

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透明聚酰亚胺复合薄膜的制备及性能研究[J]. 化工新型材料, 2024, 52(5): 83-87 DOI:10.19817/j.cnki.issn1006-3536.2024.05.005

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基金资助

国家自然科学基金(22035007)

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