Formation of microporous Teflon(R) PFA membranes via thermally induced phase separation

被引：32
|
作者：
Caplan, MR
Chiang, CY
Lloyd, DR
Yen, LY
机构：
[1] UNIV TEXAS,POLYMER RES CTR,DEPT CHEM ENGN,AUSTIN,TX 78721
[2] MILLIPORE CORP,BEDFORD,MA 01730
来源：
JOURNAL OF MEMBRANE SCIENCE | 1997年 / 130卷 / 1-2期
关键词：
phase separation; microporous membranes; formation; Teflon(R) PFA;
D O I：
10.1016/S0376-7388(97)00027-6
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Poly(tetrafluoroethylene-co-perfluoro-(propyl vinyl ether)) (Teflon(R) PFA) membranes of a variety of structures have been produced through thermally induced phase separation of Teflon(R) PFA-chlorotrifluoroethylene melt-blends of different compositions. A phase diagram of the two component system was constructed, and electron microscopy was used to characterize the structures of membranes produced. The morphological characteristics of the Teflon(R) PFA membranes have been explained on the basis of equilibrium driving forces for liquid-liquid and solid-liquid phase separations.
引用
收藏
页码：219 / 237
页数：19
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