TiO_2-(线性低密度聚乙烯-g-马来酸酐)/低密度聚乙烯薄膜的制备及其光催化降解性能  

Preparation of TiO_2-(LLDPE-g-MA)/LDPE film and its photocatalytic degradation property

作　　者：冯姝姝 林红军[1] 李建喜 申利国[1] FENG Shushu;LIN Hongjun;LI Jianxi;SHEN Liguo(College of Geography and Environmental Sciences, Zhejiang Normal University, J inhua 321004, China;Life Evaluation and Management Technology of Nonmetal Materials Lab, CGN National R and D Center, Suzhou 215400, China)

机构地区：[1]浙江师范大学地理与环境科学学院,金华321004 [2]中国广核集团有限公司国家能源核电非金属材料寿命评价与管理技术实验室,苏州215400

出　　处：《复合材料学报》2017年第12期2695-2701,共7页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(21506195;51578509);浙江省新苗项目(2015R404063;2016R404013)

摘　　要：以线性低密度聚乙烯(LLDPE)-g-马来酸酐(MA)作为相容剂制备了可光催化降解的TiO_2-(LLDPE-gMA)/LDPE薄膜。采用SEM、XRD、FT-IR对制备的TiO_2-(LLDPE-g-MA)/LDPE薄膜样品进行了表征。由于引入的LLDPE-g-MA改善了纳米TiO_2与LDPE之间的相容性,TiO_2-(LLDPE-g-MA)/LDPE薄膜具有更高的伸长率。SEM结果显示,LLDPE-g-MA显著削弱了纳米TiO_2在LDPE中的团聚,使高分散度的纳米TiO_2具备更高的光催化降解效率,增加了降解过程中的膜质量的损失。The TiO2-linear low density polyethylene（LLDPE）-g-maleic anhydride（MA）/low density polyethylene（LDPE）film with photocatalytic degradation property was prepared by blending LLDPE-g-MA.The SEM,XRD and FT-IR were employed to characterize the properties of the prepared TiO2-（LLDPE-g-MA）/LDPE samples.The prepared TiO2-（LLDPE-g-MA）/LDPE film possesses higher elongation which could be attributed to the promoted the interphase force between the nanoTiO2 and LDPE.The SEM images demonstrate that the agglomeration of nanoTiO2 is obviously reduced.Therefore,the nanoTiO2 with higher dispersibility performs higher photocatalytic degradation efficiency and causes higher mass loss of TiO2-（LLDPE-g-MA）/LDPE film.

关 键 词：低密度聚乙烯 薄膜 纳米TIO2 线性低密度聚乙烯接枝马来酸酐 光催化降解 

分 类 号：TB332[一般工业技术—材料科学与工程]