聚酯薄膜表面接枝含氟丙烯酸酯共聚物及其细菌粘附行为研究  

Preparation and bacterial adhesion behavior of polyester film grafted by fluorinated acrylate copolymer

作　　者：张洪文[1] 陆枫潇[1] 姜彦[1,2,3] 俞强[1] 

机构地区：[1]常州大学材料科学与工程学院,常州213164 [2]南京林业大学,南京210037 [3]江苏晨光涂料有限公司,常州213154

出　　处：《化工新型材料》2016年第6期90-92,94,共4页New Chemical Materials

基　　金：中国博士后科学基金资助项目(2014M551602);江苏省工业支撑项目(BE2014821);江苏省产学研前瞻项目(BY2014037-05;BY2015027-22和BY2015027-10);江苏省博士后基金资助项目(1401083B);常州市科技支撑(工业)项目(CE20150002)

摘　　要：利用表面引发原子转移自由基聚合(SI-ATRP)在聚对苯二甲酸乙二醇酯(PET)薄膜表面接枝甲基丙烯酸六氟丁酯(HFBMA)和甲基丙烯酸甲酯(MMA)共聚物。通过红外光谱仪(ATR-FT-IR),X射线光电子能谱仪(XPS)以及扫描电镜(SEM),研究不同反应时间下接枝共聚物对PET薄膜表面组成、结构及性能的影响;利用接触角测试对比研究PET薄膜接枝改性前后的表面疏水性;采用平板菌落计数的方法研究薄膜改性前后的微生物粘附性。结果表明:随着反应时间延长,PET薄膜表面水接触角不断增大,当反应时间为12h时达99.5°,疏水性显著提高;PET薄膜表面对微生物的粘附量随着反应时间的延长而逐渐减少。The copolymer composed of hexafluorobutyl methacrylate and methyl methacrylate was grafted in the surface of polyester films via surface initiated atom transfer radical polymerization（SI-ATRP）.The influence of polymerization time on the surface composition,structure and morphology of films before and after modification were studied by fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy and scanning electron microscopy.The hydrophobicity of films was measured by contact angle measurements.The bacterial adhesion behavior of films was characterized by plate colony counting method.The data indicated that the surface properties of films were related to the reaction time.As the reaction time was prolonged,the water contact angle increased,and the water contact angle reached up to 99.5°when the reaction time was 12 h.At the same time,the amount of bacterial adhesion was obviously decreased.

关 键 词：聚对苯二甲酸乙二醇酯(PET) 含氟丙烯酸酯共聚物 疏水性 细菌粘附 

分 类 号：TQ317[化学工程—高聚物工业]