碳酸钙对聚酰亚胺亚胺化程度的影响  

Effect of Calcium Carbonate on Imidization Extent of Polyimide

作　　者：黄思玉[1] 黄孙息[2] 潘若文 刘庆业[1] 蒙冕武[1] 汪英[2] 

机构地区：[1]广西师范大学环境与资源学院,广西桂林541004 [2]桂林电器科学研究院有限公司,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2016年第4期116-120,共5页Journal of Guangxi Normal University:Natural Science Edition

基　　金：广西科学基金资助项目(桂科能15122001-3-8)

摘　　要：聚酰亚胺具有优良的力学性能、耐热性能及化学稳定性能,其多孔薄膜材料是动力锂离子电池隔膜的最佳选择之一,但以碳酸钙为致孔剂经过聚酰亚胺/碳酸钙复合薄膜选择性去除技术制备的多孔聚酰亚胺材料呈脆性,为了探索其力学性能欠佳的原因,本文对以碳酸钙为致孔剂的相关聚酰亚胺材料进行了XRD、红外光谱研究和分析。研究结果显示:XRD、红外光谱都能够证明使用1∶1盐酸溶液可以去除聚酰亚胺/碳酸钙复合材料中的碳酸钙成分,红外光谱还揭示碳酸钙的加入,使得聚酰亚胺材料的亚胺化程度只能达到80%。Polyimide has excellent mechanical properties,heat resistance and chemical stability.Although its porous film is one of the best lithium-ion battery separators,the porous polyimide film prepared by removing CaCO3particles（as pore-foaming agent）out from polyimide/CaCO3 composite was brittle.In order to explore the reasons for its poor mechanical properties,the polyimide/CaCO3 composite materials and the related porous polyimide materials were characterized by XRD and IR spectroscopy.The results showed that：the pore-foaming agent CaCO3 particles could be removed selectively from the polyimide/CaCO3 composite materials by 1：1hydrochloric acid.The imidization extent of polyimide materials was only 80% when CaCO3 particles were added as pore-foaming agent.

关 键 词：多孔 聚酰亚胺 碳酸钙 亚胺化程度 红外光谱 

分 类 号：O631[理学—高分子化学]