应用化工2024，Vol.53Issue(2) ：268-272.

AlO(OH)/聚酰亚胺复合薄膜的制备及其耐高温性能研究

Preparation and high temperature resistance of AlO(OH)/polyimide composite films

郑立环 张松 王力 高彦峰
应用化工2024，Vol.53Issue(2) ：268-272.
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AlO(OH)/聚酰亚胺复合薄膜的制备及其耐高温性能研究

Preparation and high temperature resistance of AlO(OH)/polyimide composite films

郑立环 1张松 1王力 1高彦峰1
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作者信息

  • 1. 上海大学材料科学与工程学院,上海 200444
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摘要

以4,4'-二氨基二苯醚为二胺单体,均苯四甲酸二酐为酸酐单体,3-氨基丙基三乙氧基硅烷(KH550)为偶联剂,异丙醇铝[Al(OPri)3]为铝源,采用溶胶-凝胶法制备以聚酰亚胺(PI)为基体,AlO(OH)为增强相的PI复合薄膜.利用扫描电子显微镜(SEM)、傅里叶变换红外光谱、X射线衍射、热重分析仪、差示扫描量热仪、水接触角仪、漆膜划格器、铅笔划痕实验仪等对复合薄膜的结构和性能进行表征.结果表明,随着铝溶胶含量的增加,复合薄膜的热稳定性呈现先上升后降低的趋势.当铝溶胶含量为10％时,AlO(OH)/PI复合薄膜具有最好的耐高温性能,其热分解5％时的温度达到567 ℃,玻璃化转变温度为381.4℃.

Abstract

Polyimide(PI)composite films were prepared by the sol-gel method using 4,4'-diaminodiphe-nyl ether(ODA)as the diamine monomer,phthalic anhydride(PMDA)as the anhydride monomer,3-aminopropyltriethoxysilane(KH550)as the coupling agent,and isopropanol aluminum[Al(OPri)3]as the aluminum source.PI was used as the matrix,and AlO(OH)served as the reinforcement phase.The structure and properties of the composite films were characterized by SEM,FTIR,XRD,TG,DSC,water contact angle measurement,paint film marker,and pencil scratch tester.The results show that the thermal stability of the composite films first increases and then decreases with the increase of the content of alumi-num sol.When the content of aluminum sol is 10％,the A1O(OH)/PI composite films exhibits the best high-temperature resistance,with the 5％weight loss temperature reaching 567 ℃ and the glass transition temperature of 381.4 ℃.

关键词

聚酰亚胺/耐高温/热稳定性/复合薄膜

Key words

polyimide/high temperature resistance/thermal stability/composite films

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基金项目

国家自然科学基金(51873102)

上海市教育委员会科研创新项目(2019-01-07-00-09-E00020)

出版年

2024
应用化工
陕西省石油化工研究设计院　陕西省化工学会

应用化工

CSTPCD北大核心
影响因子：0.411
ISSN：1671-3206
参考文献量14
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