PVC/PAN共混膜的制备与性能  

Preparation and Properties of(PVC)/(PAN) Blend Membrane

作　　者：舒伟[1] 肖长发[1] 胡晓宇[1] 梅硕[1] 

机构地区：[1]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300160

出　　处：《高分子材料科学与工程》2012年第7期100-103,107,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20874073);天津市科技计划项目(10SYSYJC27900)

摘　　要：采用溶液相转化法制备了聚氯乙烯(PVC)/聚丙烯腈(PAN)共混膜,研究了(PVC)/(PAN)共混体系的相容性,并通过红外光谱(FT-IR)、扫描电子显微镜(SEM)等对PAN水解前后共混膜结构、形貌和性能进行了表征与分析。结果表明,(PVC)/(PAN)为部分相容体系,在成膜过程中产生明显界面微孔结构;共混膜中的PAN发生水解后,生成大量酰胺、羧酸、羧酸盐等亲水基团,改善了共混膜的亲水性(膜的水接触角从87.48°降低到65.12°),提高了共混膜的通透性(膜的纯水通量从84.17 L/(m2.h)升高到343.7 L/(m2.h))。Poly （vinyl chloride） /poly （acrylonitrile） （PVC/PAN） blend hollow fiber membranes were prepared by phase inversion solution method. The compatibility of （PVC）/（PAN） and the effects of blend ratio were studied. Under the condition of alkaline hydrolysis, the blend membranes were characterized and studied using scanning electron microscope （SEM）, Fourier transform infrared spectra（FT-IR） etc. Results showed that the interaction produced by polymers interphase separation increased the permeability of （PVC）/（PAN） blend membrane and improved the permeability. After hydrolysis, the （PVC）/（PAN） blend hollow fiber membrane generated lots of hydrophilie groups like amides, earboxylic acid, carboxylate etc. The hydrophilic and permeability property of the blend membrane were improved（Water contact angle from 87.48°to 65.12° and pure water permeation flux from 84. 17 L/（m2.h） to 343.7 L/（m2.h）.

关 键 词：聚氯乙烯/聚丙烯腈共混膜 相容性 水解 通透性 亲水性 

分 类 号：TB383[一般工业技术—材料科学与工程]