Effects of concentration of PVB, clearance of scraper, temperature of gelling bath and concentration of aceticacid additive on membrane performance were investigated.
研究了PVB本体浓度、制膜间隙、凝胶浴温度以及乙酸添加剂等因素对PVB不对称超滤膜性能的影响；
2
Methods: analgesic test with water bath, writhes induced by aceticacid, tickling induced by histamine and capillary permeability increase tests were applied.