2023,Vol.37,No.1科技进展收稿日期:20220309基金项目:合肥工业大学大学生创新训练计划项目(202010359036)作者简介:胡婷婷(1999—),女,本科在读,E-mail:a3182157167@163.com;通信作者:杨文(1973—),女,博士,副教授,研究方向:功能性高分子材料的制备及应用doi:10．16597/j．cnki．issn．1002154x．2023．01．003聚乳酸电纺纤维膜的油水分离性能胡婷婷王强英赵志朋李旭峰王鹏韩贵方杨文∗(合肥工业大学化学与化工学院,安徽合肥230009)摘要采用静电纺丝法,制备了聚乳酸(PLA)电纺纤维膜。通过扫描电子显微镜、接触角测试仪等表征了PLA电纺纤维膜的纤维结构和水接触角,并研究了其油水分离性能。结果表明PLA可纺性好,电纺纤维膜为由光滑的微纤维组成的三维多孔网络结构,纤维直径1~2μm,纤维膜孔径为3~10μm且分布较均匀。PLA电纺纤维膜的水接触角可达136°以上,具有良好的疏水性。PLA电纺纤维膜对油水混合物的分离效率可达98.3%以上,最大分离通量约15000L·m-2·h-1。关键词聚乳酸电纺纤维膜疏水性油水分离中图分类号:TQ323.4文献标志码:AOil-waterSeparationPerformanceofPolylacticAcidElectrospunFiberMembraneHuTingtingWangQiangyingZhaoZhipengLiXufengWangPengHanGuifangYangWen∗(SchoolofChemistryandChemicalEngineering,HefeiUniversityofTechnology,AnhuiHefei230009)AbstractPolylacticacid(PLA)electrospunfibermembranewaspreparedbyelectrostaticspinning.ThefiberstructureandwatercontactangleofPLAelectrospunfibermembranewerecharacterizedbyscanningelectronmicroscopeandopticalcontactanglemeter,andtheoil-waterseparationperformanceofPLAelectrospunfibermembranewastested.TheresultsshowedthatPLAhadgoodspinnability.Theelectrospunfibermembranewascomposedofsmoothmicrofibers,whichformedathree-dimensionalporousnetwork.Thefiberdiameterwas1~2μm,andtheporesizewas3~10μm,havinganuniformdistribution.ThewatercontactangleofthePLAelectrospunfibermembranewasmorethan136°,whichwasindicatedagoodhydrophobicity.TheseparationefficiencyofPLAelectrospinningfibermembraneforoil-watermixtureisabove98%,andthemaximumseparationfluxwasabout15000L·m-2·h-1.Keywordspolylacticacidelectrospunfibermembranehydrophobicoil/waterseparation含油废水已成为环境污染的主要原因之一,严重危及生态系统。工业生产...
