用化学方法在聚丙烯微孔膜表面上接枝丙烯酰胺.利用红外光谱,X射线光电子能谱,扫描电镜,原子力显微镜观察了膜表面形态和微观结构的变化,同时考察了膜的接触角和吸水能力,对BSA蛋白质的吸附量及水通量和抗污染能力.结果表明,随着接枝率的提高,接触角从95°减小到38°,吸水率也提高到163.9%.改性后,PP膜对BSA的吸附减少,膜的水通量减小,但同时膜的污染率下降,当接枝率为11.5%时,膜的污染率为0.274,比接枝前下降了55%.改性后PP微孔膜的亲水性和抗污染能力得到较大提高.
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