摘要
超疏水表面在自然界中广泛存在,具备优异的自清洁、防污、抗结冰及耐腐蚀性能。超疏水膜能够有效阻止液体渗透,增强气液界面稳定性,显著提升传质效率及运行稳定性。近年来,超疏水聚四氟乙烯(Polytetrafluoroethylene,PTFE)在油水分离、膜蒸馏及自清洁等领域展现出广阔的应用前景。PTFE凭借极低的表面能及优异的稳定性,成为制备超疏水膜的理想材料。围绕烧结法、静电纺丝法、模板法和电喷法制备的超疏水PTFE微孔膜,重点阐述各方法制备条件对膜界面疏水性、孔隙率及结构等性能参数的影响,为超疏水PTFE微孔膜的研发提供理论指导和技术支持。研究表明,不同制备工艺各具优势。目前,超疏水PTFE微孔膜的制备多处于实验室研究阶段。未来,要将新型材料与先进制备技术相结合,优化工艺流程,开发简单高效的超疏水PTFE微孔膜制备工艺。
Superhydrophobic surfaces are widely present in nature and possess excellent self-cleaning,anti fouling,anti icing,and corrosion resistance properties.Superhydrophobic membranes can effectively prevent liquid permeation,enhance gas-liquid interface stability,significantly improve mass transfer efficiency and operational stability.In recent years,superhydrophobic Polytetrafluoroethylene(PTFE)has shown broad application prospects in fields such as oil-water separation,membrane distillation,and self-cleaning.PTFE,with its extremely low surface energy and excellent stability,has become an ideal material for preparing superhydrophobic membranes.Focusing on the preparation of superhydrophobic PTFE microporous membranes using sintering,electrospinning,template,and electronic injection methods,the influence of preparation conditions on performance parameters such as membrane interface hydrophobicity,porosity,and structure is mainly elaborated,thus providing theoretical guidance and technical support for the development of superhydrophobic PTFE microporous membranes.Research has shown that different preparation processes have their own advantages.Currently,the preparation of superhydrophobic PTFE microporous membranes is mostly in the laboratory research stage.In the future,it is necessary to combine new materials with advanced preparation technologies,optimize the process flow,and develop a simple and efficient preparation process for superhydrophobic PTFE microporous membranes.
作者
汪凡
王玉
赵文峰
李恒
WANG Fan;WANG Yu;ZHAO Wenfeng;LI Heng(CCTEG Xian Research Institute(Group)Co.,Ltd.,Xian 710054,China)
出处
《中国资源综合利用》
2026年第1期123-125,共3页
China Resources Comprehensive Utilization
基金
中煤科工西安研究院(集团)有限公司科技创新基金(2024XAJS16)。
关键词
聚四氟乙烯(PTFE)
超疏水膜
烧结法
静电纺丝法
模板法
电喷法
Polytetrafluoroethylene(PTFE)
superhydrophobic membrane
sintering method
electrospinning method
template method
electronic injection method
