Effect of plasma treatment on the tribological and adhesion performance of a polymer coating deposited on different metallic substrates
Ahmed F. Abdelaal, M. Abdul Samad, Akeem Yusuf Adesina, M. M. A. Baig
Journal of Coatings Technology and Research
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Plasma treatment is a technique accepted universally for improving the adhesion of coatings to substrates because of its ease of use, environmental friendliness, and its adaptability. Hence, this research aims to further explore this technique and specifically investigate the effect of air–plasma treatment of different substrates (stainless steel, copper, brass, titanium, and aluminum) on the adhesion and tribological properties of an ultra-high molecular weight polyethylene polymer coating deposited on them. Several characterization techniques such as X-ray photoelectron spectroscopy, water contact angle, and roughness measurements are conducted to evaluate the surfaces before and after air–plasma treatment. Results showed that UHMWPE coating deposited on the plasma-treated stainless steel substrates demonstrated the best adhesion and tribological properties. This was attributed to the improved oxidation effect and the carbon cleaning effect of the plasma treatment on the stainless steel substrates as compared to other substrates.