Preparation of PA6-PVA composite fiber membrane based on coaxial spinning method and wettability study

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Physics A Pub Date : 2025-03-31 DOI:10.1007/s00339-025-08471-5

Sun Yingting, Shi Yao, Yin Jinghui, Ma Teng, Zhang Yonghu, Xiong Xiaoqin, Zhang Xiaolei, Liu Jianxin

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Abstract

Membrane separation technology is widely employed for the treatment of oily wastewater. Nevertheless, the wettability characteristics of the membrane present a constraint on the rate at which the oil-water mixture can permeate through it. This research presents an innovative methodology involving the fabrication of a double-layer composite fiber membrane via coaxial electrospinning. The process employs polyvinyl alcohol (PVA) fibers to form the composite fiber shell, while nylon fibers (PA6) serve as the inner core. The results indicate that the composite membrane made from PA6-PVA fiber exhibits advantageous hydrophilic properties and superoleophobic characteristics, as evidenced by a contact angle of 60° for water in air and 150° for oil submerged in water. Furthermore, the stable membrane flux of the PA6-PVA composite fiber membrane was found to be approximately double that of the PA6 fiber membrane. This investigation presents a viable technique for integrating PA6 into oil-water separation applications.

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.