| 热致相分离法制备纳米碳酸钙/聚偏氟乙烯共混膜 |
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| 引用本文： | 崔爱华,刘振.热致相分离法制备纳米碳酸钙/聚偏氟乙烯共混膜[J].高分子材料科学与工程,2010(9). |
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| 作者姓名： | 崔爱华 刘振 |
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| 作者单位： | 天津工业大学中空纤维膜材料与膜过程教育部重点实验室; |
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| 基金项目： | 国家高技术研究发展计划(863计划)课题(2007AA030304) |
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| 摘 要： | 以邻苯二甲酸二丁酯(DBP)为主要稀释剂,添加无机粒子CaCO3,采用热致相分离法(TIPS法)制备了聚偏氟乙烯/碳酸钙(PVDF/CaCO3)共混膜。考察了不同冷却条件对共混膜的影响以及CaCO3含量对聚偏氟乙烯结晶温度、结晶度的影响;研究了酸处理对共混膜微观结构、力学性能的影响。实验表明,通过改变冷却条件可以控制球晶的大小以及膜表面皮层的厚度;随着CaCO3含量的增加,PVDF共混膜的水通量先增加后减少,拉伸强度不断增加。经酸处理之后,共混膜水通量显著提高,拉伸强度有所下降。
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| 关 键 词： | 热致相分离 聚偏氟乙烯 碳酸钙 共混膜 |
Preparation of Nano-Calcium Carbonate/PVDF Blend Membrane via TIPS Process |
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| CUI Ai-hua,LIU Zhen.Preparation of Nano-Calcium Carbonate/PVDF Blend Membrane via TIPS Process[J].Polymer Materials Science & Engineering,2010(9). |
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| Authors: | CUI Ai-hua LIU Zhen |
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| Affiliation: | CUI Ai-hua,LIU Zhen(Key Laboratory of Hollow Fiber Membrane Material and Process of Ministry of Education. Tianjin Polytechnic University,Tianjin 300160,China) |
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| Abstract: | Poly(vinylidene fluoride)/ calcium carbonate (PVDF/CaCO3) blend membrane was prepared by thermally induced phase separation (TIPS) method using Di-n-butyl phthalate (DBP) as the main diluents. The effect of CaCO3 content on the crystallization temperature and crystallinity of the blend system,and the effects of cooling rate were studied. The effect of acid treatment on microstructure,mechanical properties was investigated. The result shows the size of spherules and the thickness of compact layer in membrane... |
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| Keywords: | thermally induced phase separation poly(vinylidene fluoride) calcium carbonate blend membrane |
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