polyion造句

• The surface of polyion composite membranes was uniform while the cross - section micrograph showed the separation layer was cross - linked with the support membrane very well
  聚离子复合膜的表面致密无孔,截面层次清晰,基膜和复合膜结合紧密。
• In this paper , the dynamic lbl polyion composite membranes were prepared by depositing polyacrilic acid and polyethyleneimine alternatively on the ultrafiltration support membrane under a certain pressure . the polyion composite membranes were evaluated by the pervaporation separation of water - ethanol mixture
  采用动态lbl (动态层-层吸附)成膜方法,以聚丙烯酸为聚阴离子,聚乙烯亚胺为聚阳离子,一定压力下,在超滤膜上制备聚离子复合膜。