纳米Cu-TiO_2在亲水涂料中的耐老化和抗菌性能研究  

The Anti-Aging and Antibacterial Properties of Nano Cu-TiO_2 in Hydrophilic Coatings

作　　者：罗俊旋[1] 徐游[1] 曾伟华[2] 汤皎宁[1] 

机构地区：[1]深圳大学深圳市特种功能材料重点实验室,广东深圳518060 [2]深圳华中科技大学研究院,广东深圳518057

出　　处：《涂料工业》2011年第1期52-55,共4页Paint & Coatings Industry

基　　金：广东省科技计划项目(2008A010500001)

摘　　要：通过光催化还原的方法制备了纳米铜基二氧化钛(Cu-TiO2)抗菌剂。使用浸涂方法将素铝箔基片涂敷上含1.4%抗菌剂的面漆抗菌涂层。对抗菌涂层进行加速老化处理,采用接触角仪、金相显微镜、体视显微镜、抗菌实验等测定涂层老化前后的接触角、表面形貌以及抗菌性能的变化。结果表明:含1.4%抗菌剂的抗菌涂层具有优秀的杀菌性能、亲水性能和耐老化性能。老化之前抗菌率达99.9%以上,老化处理后,涂层表面无明显变化,平均抗菌率达到95%以上,同时亲水角保持小于8°。In this paper, the photocatalytic reduction method was used for preparation of nano copper - ti- tanium dioxide （ Cu/TiO2 ） antibacterial agent. Prime aluminum foil was coated with antimicrobial coating containing 1.4% antimicrobial agent using dipping process. An accelerated ageing treatment on the antimi- crobial coatings was conducted. Contact angles tester, metallurgical microscope, stereomicroscope and anti- bacterial test were used to measure the change of contact angle, surface morphology, and antibacterial per- formance of coatings before and after ageing. The results showed that the antimicrobial coating with 1.4% antimicrobial agent has excellent bactericidal properties, hydrophilic properties and ageing resistance. The antimicrobial rate is 99.9% before ageing,and after ageing treatment, the average antibacterial rate is more than 95% , while hydrophilic angle is kept less than 8°.

关 键 词：纳米 亲水涂料 老化 抗菌 

分 类 号：TQ620.7[化学工程—精细化工]