| 制膜基底对非溶剂致相转化法PVDF膜结构与性能的影响 |
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| 引用本文： | 王志英,倪志华,李建林,孔祥森,杨振生.制膜基底对非溶剂致相转化法PVDF膜结构与性能的影响[J].工程塑料应用,2011,39(8):27-31. |
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| 作者姓名： | 王志英 倪志华 李建林 孔祥森 杨振生 |
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| 作者单位： | 河北工业大学化工学院,天津,300130 |
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| 基金项目： | 河北省自然科学基金项目(B2008000016) |
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| 摘 要： | 以聚偏氟乙烯(PVDF)/N,N-二甲基乙酰胺–辛醇/水为制膜体系,采用干、湿相转化法制膜。考察了制膜基底对膜结构、表面浸润性和透过性能的影响。对膜样品的XRD测试表明,具有一定粗糙度的砂纸基底对液态膜具有粘附限制作用,在成膜过程中的液–固分相与液–液分相的竞争中占据更大优势。在适当粗糙度的砂纸基底上可以制得底面高度疏水且透过性能良好的PVDF微孔膜。
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| 关 键 词： | PVDF 膜 基底 疏水性 接触角 透过性能 |
EFFECT OF SUBSTRATE ON MORPHOLOGY AND PROPERTIES OF PVDF POROUS MEMBRANE VIA DRY-WET PHASE INVERSION |
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| Wang Zhiying,Ni Zhihua,Li Jianlin,Kong Xiangsen,Yang Zhensheng.EFFECT OF SUBSTRATE ON MORPHOLOGY AND PROPERTIES OF PVDF POROUS MEMBRANE VIA DRY-WET PHASE INVERSION[J].Engineering Plastics Application,2011,39(8):27-31. |
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| Authors: | Wang Zhiying Ni Zhihua Li Jianlin Kong Xiangsen Yang Zhensheng |
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| Affiliation: | Wang Zhiying,Ni Zhihua,Li Jianlin,Kong Xiangsen,Yang Zhensheng(School of Chemical Engineering,Hebei University of Technology,Tianjin300130,China) |
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| Abstract: | Polyvinylidene fluoride(PVDF) membrane were tailored by dry-wet phase inversion with the system of PVDF/N,N-dimethylacetamide and octanol/water.Effects of the substrate on the morphology,wettability and permeability of PVDF membrene were investigated.It was found that the membrane could be adhered to the abrasive paper,so that liquid-solid demixing was promoted and polymer crystallites had grown in all directions.It was confirmed by wide-angle X-ray scattering.A highly hydrophobic porous PVDF membrane with ... |
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| Keywords: | PVDF membrane substrate hydrophobic contact angle permeability |
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