Preparation Of Superhydrophobic Copper Mesh By Magnetron Sputtering And Performance Studies

During the development of human beings,they are constantly learning from nature,and human research on super-hydrophobic phenomena stems from the self-cleaning performance of plant surfaces.Inspired by nature,such as lotus leaf,butterfly wings,can show excellent super-hydrophobic properties.In recent years,research,construction,and preparation of superhydrophobic materials have attracted the attention of scholars.Nowadays,super-hydrophobic surfaces are more and more widely used in our daily lives and are closely related to our lives in many aspects.In the existing methods for preparing super-hydrophobic copper mesh,there are generally some problems such as the surface micro-nano structure cannot be well controlled;there are many steps,the operation is not easy,and it is easy to cause waste liquid pollution,so this study uses high speed,low temperature,low The contaminated RF magnetron sputtering technology can produce ultra-hydrophobic copper mesh in one step by changing the temperature of the deposition atmosphere,which has exploration and innovation value.Prepare PTFE superhydrophobic film on copper mesh substrate,through orthogonal test analysis and parameter discussion and optimization,and use contact angle tester,surface profiler,scanning electron microscope,X-ray photoelectron spectrometer to study copper mesh A super-hydrophobic copper mesh is prepared.The water contact angle of the copper mesh is up to 162.4 °,and the slide angle is 4.7 °.It has excellent super-hydrophobic properties.Ambient heating makes sputtered PTFE have a new film-forming mechanism.When the temperature rises to 100?,the surface of the copper mesh has successfully constructed a PTFE micro-nano structure that can store air.The sputtered PTFE film effectively reduces the surface free energy of the copper mesh,and these micro-projection structures effectively increase the copper mesh.The roughness of the surface makes the copper mesh have strong super-hydrophobic properties.In this paper,the performance of the copper mesh is studied: the copper mesh still has strong hydrophobic properties after being placed at low temperature and freeze-thaw cycles;the hydrophobic angle of the copper mesh drops only slightly after being placed in an environment of up to 140 ° for 24 hours.It shows that it has excellent heat resistance;the copper mesh has no change in the hydrophobic properties at room temperature for 1 month without additional treatment,indicating that the stability of the film is very good;the copper mesh is soaked in a solution with PH = 1 ? 14 for 1 hour,it still has super-hydrophobic properties,indicating that its acid and alkali corrosion resistance is good;the shortcoming is that the anti-friction ability needs to be improved.This study is the first time that magnetron sputtering has been used to prepare superhydrophobic copper mesh.The research results show that the PTFE super-hydrophobic copper mesh prepared by magnetron sputtering has excellent hydrophobic properties and other excellent properties,and has broad application prospects.