茶多酚-聚乳酸/聚碳酸丁二醇酯抗菌复合纤维膜的制备及性能  

Preparation and properties of tea polyphenol-polylactic acid/polybutylene carbonate antibacterial composite fiber membrane

作　　者：顾晓华[1] 李燕 刘思雯 杨长龙[1] 程伟东[1] 王玉慧[1] GU Xiaohua;LI Yan;LIU Siwen;YANG Changlong;CHENG Weidong;WANG Yuhui(Material Science and Engineering School,Qiqihar University,Qiqihar 101006,China;Shanghai Hecheng Polymer Technology Co.Ltd.,Shanghai 100190,China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,齐齐哈尔101006 [2]上海鹤城高分子科技有限公司,上海100190

出　　处：《复合材料学报》2020年第6期1227-1233,共7页Acta Materiae Compositae Sinica

基　　金：黑龙江省教育厅项目(135109214);2018年齐齐哈尔大学研究生创新研究(YJSCX2018-039X);黑龙江大学学生创新创业培训项目(201810232136)。

摘　　要：通过静电纺丝法制备了茶多酚(TP)-聚乳酸(PLA)/聚碳酸丁二醇酯(PBC)复合纤维膜。并采用SEM、FTIR、TG、接触角和抑菌测试进行了表征。研究表明,TP与PLA/PBC复合纤维薄膜共混良好,并且通过接触角测试10 s后接触角从105.42°下降到69.41°,TP的加入使TP-PLA/PBC复合纤维膜的热分解稳定性提高。随着TP含量的增加,纤维直径分布逐渐均匀并且趋于减小。TP-PLA/PBC复合纤维膜的抗菌活性远高于PLA/PBC复合纤维膜,对大肠杆菌(E.coli)的抗菌活性也略高于金黄色葡萄球菌(S.aureus)。当TP的添加量(与PLA/PBC的质量比)为20%时,得到了亲水性、热稳定性和抗菌性能优异的TP-PLA/PBC复合纤维膜。Tea polyphenol(TP)-polylactic acid(PLA)/polybutylene carbonate(PBC)composite fiber membranes were successfully prepared by electrospinning.The embranes were characterized by SEM,FTIR,TG,contact angle and bacteriostatic test.The results show that the TP and PLA/PBC composite fiber films are well blended,and the contact angle of TP-PLA/PBC decreases from 105.42°to 69.41°after 10 s of wet test.The addition of TP improves the thermal decomposition stability of TP-PLA/PBC composite fiber membranes.With the increase of TP content,the fiber diameter distribution gradually becomes uniform and tends to decrease.The antimicrobial activity of TP-PLA/PBC composite fiber membranes is much higher than that of pure PLA/PBC composite fiber membranes,and the antimicrobial activity against E.coli is also slightly higher than S.aureus.When the mass ratio of TP to PLA/PBC is 20%,the TP-PLA/PBC composite fiber membrane excellent in hydrophilicity,thermal stability and antibacterial property is obtained.

关 键 词：聚乳酸 聚碳酸丁二醇酯 茶多酚 静电纺丝 复合纤维膜 

分 类 号：TQ342[化学工程—化纤工业]