Fine Structure of PVDF Membranes Prepared by Phase Inversion from Water-NMP-PVDF System

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Title:	Fine Structure of PVDF Membranes Prepared by Phase Inversion from Water-NMP-PVDF System
Authors:	Lin, Dar-Jong;Chang, Cheng-Liang;Chang, Chi-Lin;Chen, Tzung-Chin Cheng, Liao-Ping
Contributors:	淡江大學化學工程學系
Keywords:	聚偏二氟乙烯薄膜;相圖;巨孔穴;胞狀孔洞;Poly(VINYLIDENE FLUORIDE) Membrane;Phase Diagram;Macrovoid;Cellular Pore
Date:	2003-09
Issue Date:	2014-02-09 00:53:24 (UTC+8)
Abstract:	PVDF membranes were prepared by isothermal immersion precipitation of PVDF/NMP dope solutions from both harsh and soft nonsolvent baths. Low voltage FESEM imaging of the formed membranes at very high magnifications (e.g., 300 KX) revealed their nano-scale fine structures; particularly, the branching dendrites observed on the surfaces of the macrovoids, cellular pores and the membrane skin, which have not been successfully presented in the literature. Evidence of crystallization was also demonstrated by X-ray diffraction and DSC measurements.
Relation:	第三屆薄膜科技研討會會議論文專輯=The Third Confrence on Membrane Science & Technology in Taiwan
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Proceeding

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