聚乙烯醇改性无纺布的制备及表征  

Preparation and characterization of surface modification of non-woven fabric by PVA

作　　者：仉春华[1] 杨凤林[1] 王文君[2] 陈冰[1] 张凤杰[3] 

机构地区：[1]大连理工大学环境与生命学院,辽宁大连116024 [2]辉瑞制药有限公司,辽宁大连116600 [3]大连民族学院环境工程系,辽宁大连116600

出　　处：《辽宁工程技术大学学报（自然科学版）》2008年第2期318-320,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：中国博士后科学基金资助项目(2004036390)

摘　　要：采用表面涂覆法将PVA固定在聚丙烯无纺布表面进行表面改性,运用全反射红外光谱(FTIR-ATR)、扫描电镜(SEM)和X-电子能谱(XPS)技术对改性前后无纺布表面的结构及状态进行了分析,测定了改性前后表面的水接触角,探讨了PVA浓度对表面亲水性能的影响。研究结果表明,PVA与GA交联形成的薄膜(凝胶层),将亲水性的-C-O-、-C-O-C-等基团引入到无纺布的表面,明显改善了表面的亲水性能;随着PVA浓度的增加,表面亲水性增加,在PVA浓度为0.8wt%时,改性表面的亲水性最好。The surface modification of polypropylene non-woven fabric （NWF） by PVA （polyvinyl alcohol） was researched by dip-coating of PVA to immobilize PVA on the NWF surface. Chemical structures and morphological changes of the NWF samples surface were characterized in detail by attenuated total reflectance fourier transform infrared （FTIR/ATR） spectroscopy, scanning electron micrograph （SEM）, X-ray photoelectron spectroscopy （XPS）. Water contact angles were measured before ,and after surface modification. PVA concentration impact on surface hydrophilic was researched. Results reveal that hydrophilic groups such as -C-O-,-C-O-C- are introduced to the NWF surface by cross-linking between PVA and GA, and hydrophilic is improved greatly. With increasing PAV concentration, surface hydrophilic is increased. When PVA concentration is 0.8wt%, hydrophilic of surface modification is the highest.

关 键 词：聚丙烯无纺布 聚乙烯醇 表面涂覆 表面改性 

分 类 号：TQ316.6[化学工程—高聚物工业]