聚偏氟乙烯(PVDF)具备优异的物理性能,其固有的疏水性特点不利于水处理工艺。以PVDF为膜基质加入其他添加剂,是提高膜亲水性能、解决溶质截留和减少污垢的有效途径。考虑到亲水改性在PVDF膜应用中的重要性,在国内外研究者对PVDF改性工作的基础上,总结了添加剂改性提高PVDF膜亲水性的方法,并综述了亲水膜的研究进展,为聚偏氟乙烯膜今后的发展提供了指导性建议。
Polyvinylidene fluoride (PVDF) has excellent physical properties,however,its inherent hydrophobicity lead to limit its use in water treatment processes.Using PVDF as the membrane matrix in addition to other additives proves to be an effective way to improve the hydrophilicity of the membrane.Considering the importance of hydrophilic modification in the application of PVDF membranes,the modification methods using additives in order to increaing the hydrophilicity of the membranes were reviewed based on domestic and global studies in the field of PVDF modification,and elaborated the types of hydrophilic membranes.The baseline information and guiding suggestions were provided for future studies of PVDF membranes.
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