| 聚酰亚胺/纳米Al_2O_3三层复合薄膜的制备 |
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| 引用本文： | 刘立柱,宋玉侠,翁凌,赵洪,雷清泉.聚酰亚胺/纳米Al_2O_3三层复合薄膜的制备[J].功能材料,2009,40(2). |
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| 作者姓名： | 刘立柱 宋玉侠 翁凌 赵洪 雷清泉 |
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| 作者单位： | 刘立柱,宋玉侠,翁凌,LIU Li-zhu,SONG Yu-xia,WENG Ling(哈尔滨理工大学,材料科学与工程学院,黑龙江,哈尔滨,150040);赵洪,雷清泉,ZHAO Hong,LEI Qing-quan(哈尔滨理工大学,电气与电子工程学院,黑龙江,哈尔滨,150040)
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| 基金项目： | 国家自然科学基金，黑龙江省自然科学基金 |
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| 摘 要： | 将掺杂纳米Al2O3的聚酰胺酸与未掺杂聚酰胺酸在玻璃板上逐层涂膜,热亚胺化制备了3层聚酰亚胺/纳米Al2O3复合薄膜.采用扫描电镜(SEM)对该薄膜的微观形貌进行了表征,测试了薄膜的热稳定性、力学性能及电击穿场强.结果表明,复合薄膜的热性能及电击穿场强均高于掺杂薄膜及未掺杂膜,当热失重达到10%时,复合薄膜的热分解温度达到了629.1℃;与掺杂薄膜相比,复合薄膜的力学性能得到明显提高,拉伸强度和断裂伸长率分别为117.4 MPa和18.5%.
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| 关 键 词： | 聚酰亚胺 复合薄膜 纳米Al2O3 力学性能 |
Preparation of three-layer polyimide/nano-alumina composite films |
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| LIU Li-zhu,SONG Yu-xia,WENG Ling,ZHAO Hong,LEI Qing-quan.Preparation of three-layer polyimide/nano-alumina composite films[J].Journal of Functional Materials,2009,40(2). |
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| Authors: | LIU Li-zhu SONG Yu-xia WENG Ling ZHAO Hong LEI Qing-quan |
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| Affiliation: | 1.Material Science &Engineering College;Harbin University of Science and Technology;Harbin 150040;China;2.Electrical &Electronic Engineering College;China |
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| Abstract: | Three-layer polyimide/nano-aluminacomposite film was prepared with thermal imiditation after pure poly(amic acid) or Al2O3/poly(amic acid) solution was cast on glass plate step by step.The micro-morphology of PI films were characterized by scanning electron micrographs(SEM).The thermal stability,mechanical properties and electric breakdown strength of PI films were investigated.The results indicated that the thermal stability and electric breakdown strength of PI composite film were better than pure film an... |
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| Keywords: | polyimide composite film nano-alumina mechanical properties |
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