In this paper, the photocatalytic reduction method was used for preparation of nano copper - titanium 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 antimicrobial coatings was conducted. Contact angles tester, metallurgical microscope, stereomicroscope and antibacterial test were used to measure the change of contact angle, surface morphology, and antibacterial performance 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°.%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°.
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