采用丙烯酸(AA)作为改性单体,对聚偏氟乙烯(PVDF)中空纤维膜进行等离子体化学沉积改性.通过傅里叶变换衰减全反射光谱仪(ATR-FT-IR)分析发现,改性后的膜表面引入了羧基、羟基等亲水性官能团.经低温等离子体改性后的膜,清水通量提高20％ ～30％,膜面和膜孔的Zeta电位分别提高了694％和58.66％,在过滤分离凹凸棒悬浊液实验中,改性膜通量衰减百分比,较原膜平均降低了8.44％,仅经水力清洗后的改性膜通量恢复率,较原膜提高8％.
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