UV-cured poly(vinyl alcohol) ultrafiltration nanofibrous membrane based on electrospun nanofiber scaffolds
UV-cured poly(vinyl alcohol) ultrafiltration nanofibrous membrane based on electrospun nanofiber scaffolds
复制标题
DOI：
10.1016/j.memsci.2008.11.054
复制
发表时间：
2009-02
影响因子：
9.5
通讯作者：
Zhaohui Tang;Jie Wei;Lewis Yung;Bowei Ji;Hongyang Ma;C. Qiu;Kyunghwan Yoon;Fen Wan;D. Fang;B. Hsiao;B. Chu
中科院分区：
文献类型：
--
作者：
Zhaohui Tang;Jie Wei;Lewis Yung;Bowei Ji;Hongyang Ma;C. Qiu;Kyunghwan Yoon;Fen Wan;D. Fang;B. Hsiao;B. Chu
研究了一种新型高通量薄膜纳米纤维复合材料（TFNC）超滤膜，该膜由紫外线固化聚（乙烯醇）（PVA）水凝胶阻挡层、静电纺丝纳米纤维PVA中间层支架和聚对苯二甲酸乙二醇酯（PET）无纺基材组成。阻挡层是通过在化学交联的纳米纤维 PVA 支架上光交联紫外线反应性 PVA (UV-PVA) 制成的。研究了UV-PVA溶液的浓度和粘度对TFNC膜的通量和截留率的影响。结果发现，5 wt% UV-PVA 溶液涂层经过 20 秒的时间进行紫外线固化，可产生高通量、高截留率的超滤膜，该膜具有良好的抗污染性，可用于油水乳液的分离。
A novel class of high-flux thin film nanofibrous composite (TFNC) ultrafiltration membrane, consisting of UV-cured poly(vinyl alcohol) (PVA) hydro-gel barrier layer, electrospun nanofibrous PVA mid-layer scaffold and polyethylene terephthalate (PET) non-woven substrate, was investigated. The barrier layer was fabricated by photo-crosslinking of UV-reactive PVA (UV-PVA) on a chemically cross-linked nanofibrous PVA scaffold. The effects of concentration and viscosity of the UV-PVA solution on the flux and rejection rate of the TFNC membrane were studied. It was found that UV curing of a 5-wt% UV-PVA solution coating over 20-s time period yielded a high flux, high rejection UF membrane with good fouling resistance for separation of oil and water emulsion.