Preparation of PVB composite coating films with nanoparticle modification for antibacterial and antiviral application
Objective:Coating films were fabricated with antibacterial and antiviral activity,which can be widely used on surfaces of public facilities to control the microbiological risk.Methods:The resin polyvinyl butyral(PVB)was dissolved in non-toxic and volatile ethanol,and then nano-zinc oxide(ZnONP)or nano-copper oxide(CuONP)particles with antibacterial and antiviral effects were added.The disinfection performance of the coating films was investigated via adding nanoparticles with different sizes and amounts.Results:Analyses of scanning electron microscopy showed that CuONP and ZnONP formed uniform films with PVB.In addition,the larger contact area and the higher dosage of nanoparticles promoted the bactericidal effect against E.coli and MS2 phage.With the contact area larger than 80 cm2,the removal can reach up to 90%with removal rate over 1%/min.Conclusion:The PVB composite coating films have high antibacterial and antiviral activity,which provides a new approach to control microbiological risk for public health.
antibacterial and antiviral activitynano-materialscoating filmdisinfection
万方数据
维普
