防水透气聚四氟乙烯纳米和微纤维膜作为高效PM2.5过滤器
Waterproof-breathable PTFE nano- and Microfiber Membrane as High Efficiency PM2.5 Filter.
作者信息
Li Xiao, Wang Xiao-Xiong, Yue Tian-Tian, Xu Yuan, Zhao Ming-Liang, Yu Miao, Ramakrishna Seeram, Long Yun-Ze
机构信息
Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China.
Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, China.
出版信息
Polymers (Basel). 2019 Apr 1;11(4):590. doi: 10.3390/polym11040590.
This study shows the feasibility of using electrospinning technique to prepare polytetrafluoroethylene/poly (vinyl alcohol) (PTFE/PVA) nanofibers on PTFE microfiber membrane as substrate. Then, PVA in the fiber membrane was removed by thermal treatment at about 350 °C. Compared to PTFE microfiber substrates, the composite PTFE fiber membranes (CPFMs) have improved filtration efficiency by 70% and water contact angle by 23°. Experimental test data showed that the water contact angle of the sample increased from about 107° to 130°, the filtration efficiency of PM2.5 increased from 44.778% to 98.905%, and the filtration efficiency of PM7.25 increased from 66.655% to 100% due to the electrospun PTFE nanofiber layer. This work demonstrates the potential of CPFMs as a filter for the production of indoor or outdoor dust removal and industrially relevant gas filtration.
本研究表明了使用静电纺丝技术在聚四氟乙烯（PTFE）微纤维膜基材上制备聚四氟乙烯/聚乙烯醇（PTFE/PVA）纳米纤维的可行性。然后，通过在约350℃下进行热处理去除纤维膜中的聚乙烯醇。与PTFE微纤维基材相比，复合PTFE纤维膜（CPFM）的过滤效率提高了70%，水接触角提高了23°。实验测试数据表明，由于静电纺PTFE纳米纤维层，样品的水接触角从约107°增加到130°，PM2.5的过滤效率从44.778%提高到98.905%，PM7.25的过滤效率从66.655%提高到100%。这项工作证明了CPFM作为用于生产室内或室外除尘及工业相关气体过滤的过滤器的潜力。
Zotero 插件