碳酸钙对聚酰亚胺亚胺化程度的影响

发布时间：2018-01-08 01:06

本文关键词：碳酸钙对聚酰亚胺亚胺化程度的影响　出处：《广西师范大学学报(自然科学版)》2016年04期 　论文类型：期刊论文

【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%。
[Abstract]:Polyimide has excellent mechanical properties, heat resistance and chemical stability. Its porous film material is one of the best choice for the diaphragm of power lithium ion battery. However, the porous polyimide material prepared by selective removal of polyimide / calcium carbonate composite film with calcium carbonate as pore-forming agent is brittle, in order to explore the reasons for its poor mechanical properties. In this paper, the related polyimide materials with calcium carbonate as pore-forming agent were studied and analyzed by XRD and IR spectra. The results showed that: XRD. The infrared spectra can show that the polyimide / calcium carbonate composites can be removed by using 1: 1 hydrochloric acid solution, and the addition of calcium carbonate is also revealed by the infrared spectrum. The degree of imidification of polyimide materials can only reach 80%.
【作者单位】：广西师范大学环境与资源学院;桂林电器科学研究院有限公司;
【基金】：广西科学基金资助项目(桂科能15122001-3-8)
【分类号】：TQ323.7;TB332
【正文快照】： 多孔聚酰亚胺薄膜由于具有较高的热稳定性、化学稳定性、较好的机械性能和锂离子电解液亲和性能,是动力锂离子电池隔膜的潜在选择。聚酰亚胺有不可溶聚酰亚胺和可溶聚酰亚胺两大类,可溶聚酰亚胺耐有机锂离子电解液腐蚀性能差,而不溶聚酰亚胺耐有机锂离子电解液腐蚀性能好。多

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