二苯基氧化膦结合醚键增强热封异构体共聚酰亚胺薄膜的耐原子氧性

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COATINGS & FILMS

Journal of Plastic Film & Sheeting Pub Date : 2022-05-19 DOI:10.1177/87560879221102635

Hongjiang Ni, Xiaoke Yang, Jun Li, Daijun Zhang, Jingang Liu, Shi-yong Yang, Xiang-bao Chen

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引用次数: 1

摘要

以2,3,3 '，4 ' -氧二苯二酸酐(aODPA)、4,4 ' -氧二苯胺(ODA)和2,5-双[(4-氨基苯氧基)苯基]二苯基氧化膦(BADPO)为原料，合成了耐原子氧(AO)和机械强度增强的可热封异构体共聚酰亚胺(CPI)薄膜。我们研究了分子结构和二胺比对热性能、溶解度、力学性能、抗AO性和热封性的影响。二苯基氧化膦(DPO)侧基降低了CPI膜的机械强度，而其较高的ODA反应活性增加了分子量。在aODPA-BADPO体系中，当ODA浓度为10 mol%时，CPI薄膜的抗拉强度有所提高，但对抗AO性能没有影响。同时，CPI薄膜热封后界面完全融合，表现出良好的热封性能。

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Enhancement of atomic oxygen resistance for heat-sealable isomeric co-polyimide films by combining ether linkage with diphenylphosphine oxide

Heat-sealable isomeric co-polyimide (CPI) films with enhanced atomic oxygen (AO) resistance and mechanical strength were synthesized from 2,3,3′,4′-oxydiphthalic anhydride (aODPA), 4,4′-oxydianiline (ODA), and 2,5-bis [(4-aminophenoxy)phenyl]diphenylphosphine oxide (BADPO). We investigated how the molecular structure and diamine ratio affected the thermal properties, solubility, mechanical properties, AO resistance and heat-sealability. The diphenylphosphine oxide (DPO) side group decreased the CPI film mechanical strength and its higher ODA reactivity increased the molecular weight. At 10 mol% ODA in the aODPA-BADPO system, the CPI film exhibited increased tensile strength with no detriment to the AO resistance. Meanwhile, the CPI films demonstrated good heat-sealability indicated by a completely merged interface after heat sealing.

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来源期刊

Journal of Plastic Film & Sheeting 工程技术-材料科学：膜

CiteScore

6.00

自引率

16.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Plastic Film and Sheeting improves communication concerning plastic film and sheeting with major emphasis on the propogation of knowledge which will serve to advance the science and technology of these products and thus better serve industry and the ultimate consumer. The journal reports on the wide variety of advances that are rapidly taking place in the technology of plastic film and sheeting. This journal is a member of the Committee on Publication Ethics (COPE).