聚四氟乙烯(PTFE)微孔膜以其独特的化学惰性、耐腐蚀性及机械强度,成为水处理领域的重要膜材料。系统总结了PTFE微孔膜在制备工艺与改性方法方面的研究进展。微孔膜制备方面,重点介绍了机械拉伸法、乳液纺丝法和烧结法3种主要工艺,分析了各自的优势与局限性。改性技术方面,探讨了PTFE微孔膜亲水化和超疏水改性方法,强调了表面改性技术对提升微孔膜性能的重要性,旨在为PTFE微孔膜制备及性能优化提供指导。
Polytetrafluoroethylene (PTFE) microporous membranes have become important membrane materials in the field of water treatment due to their unique chemical inertness,corrosion resistance,and mechanical strength.This paper systematically summarized the research progress on the preparation processes and modification methods of PTFE microporous membranes.In terms of membrane preparation,three main techniques--mechanical stretching,emulsion spinning,and sintering—were highlighted,with an analysis of their respective advantages and limitations.Regarding modification techniques,the study explored hydrophilic and superhydrophobic modifications of PTFE membranes,emphasizing the significance of surface modification in enhancing membrane performance,aiming to provide guidance for the preparation and performance optimization of PTFE microporous membranes.
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