Preparation And Properties Of ZnO/Cu Composite Films Deposited On PP

Magnetron sputtering technique is an advanced method for the preparation of functional textiles.It chooses polypropylene(PP) nonwoven fabric as a base in this study.ZnO/Cu layered films deposited on it were prepared by magnetron sputtering.The functional textiles were prepared which have good optical properties,electrical properties and antimicrobial properties.They were characterized and analyzed by scanning electron mic roscopy(SEM),atomic force microscopy(AFM),X-ray diffraction(XRD), fabric sensor static analyzer and UV-Vis spectrophotometer in this s tudy.The results are as follows:With the increase of sputtering power,the sputtering rate was increased and sedimentary particles were increased by the same amount of time.The size of composite nano-particle was increased.The size of composite nano-particle has a close relation with the argon pressure in the vacuum reaction chamber.The size of particle will be increased in the first place and then decreased with increasing of argon pressure.The size of argon composite nano particle is affected by the flow of argon.The size of particle will be increased in the first place and then decreased with increasing of the flow of argon.But the impact of particle size is less than pressure.The proportion of oxygen and argon has a significant impact on the composite nanoparticles.The size of composite nano-particle will be smaller with the increasing of oxygen flow.ZnO(002) diffraction peak is also increasingly obvious seen by XRD.The half-life of single Cu monolayer film is far below the half-life of ZnO film.The antistatic properties of Cu film is better than ZnO film’s.The half-life of layered films are gradually reduced with the increasing of thickness of the Cu underlayer when the parameters of upper layer ZnO remain constant.Changing in the upper ZnO process parameters:The half-life will be decreased with sputtering power enhance.When the power is too large,the half-life will become higher.The antistatic properties will deteriorate.The half-life will be increased as the increasing of the pressure.The antistatic properties will deteriorate.The uniformity of film will be poor by too low intensity.The half-life of the layered films have small changing by the changing of the flow of argon gas.The size of particle has little effect by the flow of argon gas from AFM topography. When argon sputtering with oxygen,the half-life of layered film will increase with the oxygen content increasing.Choose some samples to do the cleaning experiments.The antistatic durability of the layered film is higher than the single film. When the thickness of film is too thick,the durability of the antistatic reduced.When the pressure is1Pa,sputtering time is30min,sputtering power is75W,the layered film has good antistatic properties and strong anti-static durability.The transmittance of ZnO/Cu layered films is reduced with increasing thickness of the Cu film underlying.Changing in the upper ZnO process parameters:the transparent of the layered film in the visible region will increase in the first place and then decrease by the argon pressure is increased.The transmission rate under argon and oxygen atmosphere has improver than the pure argon atmosphere.The transmittance of the layered film will be increased in the first place and then reduced with the increase of the oxygen content.The single ZnO thin films and single Cu films have antibacterial properties.The antibacterial effect of ZnO/Cu layered film is better than single film.The antibacterial effect of layered film becomes better after exposure to sunlight.