聚乙烯醇缩乙醛
- 网络polyvinyl acetal;polyvinylacetal;PVA
聚乙烯醇缩乙醛-
再以得到的聚乙烯醇缩乙醛作为膜材料，N，N二甲基乙酰胺作溶剂，水的盐溶液作凝固浴，制备出相转化超滤膜；
The membranes were prepared from a casting solution of poly ( vinyl acetal ), N , N-dimethylacetamide as solvent by immersing them in coagulation bath .
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聚乙烯醇缩丁醛膜与聚乙烯醇缩乙醛膜具有相似的横断面结构。
In addition , the cross section structure for polyvinyl butyral membranes is similar to the structure of acetalized PVA membranes .
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实验又考察了聚乙烯醇缩乙醛浓度、铸膜液温度、凝固浴温度和盐含量以及添加剂含量等因素对膜纯水通量和截留率的影响。
Experiments were performed on the influences of the concentration of poly ( vinyl acetal ) and temperature on pure water flux and rejection of membranes .