A novel strategy was proposed to fabricate alkali-resistant PVDF membrane via sodium lauryl sulfate (SDS) attached to the surface of membrane and immobilized by UV-curable polyester acrylate and tri(propylene glycol) diacrylate (TPGDA). The attached anionic surfactant, SDS, on the membrane surface can resist the alkali corrosion by NaOH, and the curing of the resin can immobilize the SDS on the membrane firmly. Due to the unique alkali resistance of SDS and resin formed, the UV-curable resin-modified PVDF membrane showed greatly enhanced alkali-resistant ability. Characterization of SEM and FTIR showed that polyester acrylate and TPGDA were cured successfully under the action of 1-hydroxycyclohexyl phenyl ketone (184) and ultraviolet light. Whiteness, differential scanning calorimeter and X-ray photoelectron spectrometer characterization showed that the modified PVDF membrane had a lower degree of dehydrofluorination than the pristine PVDF membrane after alkali treatment. Results of the detailed alkali-resistant analysis indicated that the F/C ratio of the UV-curable resin-modified PVDF membrane decreased by 2.6% after alkali treatment compared to pristine PVDF membrane decreased by 19.28%. The alkali-resistant performance was mainly attributed to the immobilized SDS. This study provided a facile and scalable method for designing alkali-resistant PVDF membrane, which shows a promising potential in the treatment of alkaline wastewater and alkaline-cleaning PVDF membrane.

提出了一种新的策略，即通过将十二烷基硫酸钠（SDS）附着在膜表面并用可紫外线固化的聚酯丙烯酸酯和三（丙二醇）二丙烯酸酯（TPGDA）固定化，来制造耐碱的PVDF膜。膜表面附着的阴离子表面活性剂SDS可以抵抗NaOH引起的碱腐蚀，并且树脂的固化可以将SDS牢固地固定在膜上。由于SDS和所形成的树脂具有独特的耐碱性，因此可紫外线固化的树脂改性的PVDF膜显示出大大增强的耐碱性。SEM和FTIR表征表明，聚酯丙烯酸酯和TPGDA在1-羟基环己基苯基酮（184）和紫外光的作用下成功固化。白度 差示扫描量热仪和X射线光电子能谱仪表征表明，经碱处理后，改性的PVDF膜的脱氟化氢程度低于原始PVDF膜。详细的耐碱性分析结果表明，碱处理后，可UV固化的树脂改性PVDF膜的F / C比下降了2.6％，而原始PVDF膜则下降了19.28％。耐碱性能主要归因于固定化的SDS。这项研究为设计耐碱性的PVDF膜提供了一种简便且可扩展的方法，该方法在处理碱性废水和碱性清洁PVDF膜方面显示出广阔的前景。详细的耐碱性分析结果表明，碱处理后，可UV固化的树脂改性PVDF膜的F / C比下降了2.6％，而原始PVDF膜则下降了19.28％。耐碱性能主要归因于固定化的SDS。这项研究为设计耐碱性的PVDF膜提供了一种简便且可扩展的方法，该方法在处理碱性废水和碱性清洁PVDF膜方面显示出广阔的前景。详细的耐碱性分析结果表明，碱处理后，可UV固化的树脂改性PVDF膜的F / C比下降了2.6％，而原始PVDF膜则下降了19.28％。耐碱性能主要归因于固定化的SDS。这项研究为设计耐碱性的PVDF膜提供了一种简便且可扩展的方法，该方法在处理碱性废水和碱性清洁PVDF膜方面显示出广阔的前景。