Formation of asymmetric polysulfone membranes by immersion precipitation. Part II. The effects of casting solution and gelation bath compositions on membrane structure and skin formation,Journal of Membrane Science |
您所在的位置：网站首页 › journal of membrane science缩写 › Formation of asymmetric polysulfone membranes by immersion precipitation. Part II. The effects of casting solution and gelation bath compositions on membrane structure and skin formation,Journal of Membrane Science |
Formation of asymmetric polysulfone membranes by immersion precipitation. Part II. The effects of casting solution and gelation bath compositions on membrane structure and skin formation,Journal of Membrane Science
|
Abstract The effects of casting solution and gelation bath compositions on the structure of membranes produced from the system polysulfone-N,N-dimethylacetamide-2-propanol have been studied. Membranes were prepared by immersion precipitation with no evaporation step. Membrane structures were determined by scanning electron microscopy. The observations are analyzed in the light of predictions made using the model developed in Part I of this study [J. Membrane Sci., 65 (1992) 213]. The concept of the critical flux ratio is introduced to facilitate the analysis of the phenomena leading to skin formation of asymmetric membranes. This concept provides the means for predicting, based on casting conditions, whether or not a membrane will have a dense skin.
中文翻译：
摘要 研究了流延液和凝胶浴组成对聚砜-N,N-二甲基乙酰胺-2-丙醇体系制膜结构的影响。通过没有蒸发步骤的浸没沉淀制备膜。通过扫描电子显微镜确定膜结构。根据使用本研究第一部分中开发的模型所做的预测分析观察结果 [J. 膜科学，65 (1992) 213]。引入临界通量比的概念是为了便于分析导致不对称膜表皮形成的现象。这个概念提供了根据浇铸条件预测膜是否具有致密表层的方法。 |
【本文地址】
今日新闻 |
推荐新闻 |