Preparation of a SiO_x coating with a lot of micro–nanometre wrinkles on the polyimide surface and its resistance to corrosion

Abstract

The preparation of inorganic coatings on polymer surfaces to improve their performance is a frequently used method. However, the cracking and falling off of the coatings caused by different thermal expansion coefficients or poor adhesion between the coatings and polymer substrates need to be solved. In this paper, the preparation of a SiO x coating with a lot of micro-nanometre wrinkles is proposed, using the scalability of wrinkles to alleviate or eliminate the stress. The wrinkled coating is prepared on the polyimide surface by a sol forming process. Environmental simulation tests showed that the coatings exhibit resistance to moisture and temperature change, and have a good anti-atomic oxygen performance.

A review on wear failure of hydraulic components: existing problems and possible solutions

“…Material coating is a method of applying a thin layer of material on parent substrates in addition to enhancing their surface qualities [70][71][72]. Surface coating techniques, according to certain previous research publications, play a critical role in improving corrosion resistance qualities [73][74][75][76]. Surface coating is used to extend the life of several industrial products that regularly fail due to surface wear, including as gears, boiler surfaces, and bearings [77][78][79].…”

Surface Physical Properties of Ion Beam Sputtered Copper Thin Films on Poly Tetrafluoroethylene

“…Polymer-metal nanostructures, in which metal nanoparticles are deposited and dispersed in a polymer matrix, exhibit structural, optical, electrical, and mechanical properties as such to render these materials useful for electromagnetic shielding [1], electrical engineering [2], electronic circuits [3], resistance to corrosion [4], capacitors [5] and data storage applications [6]. The incorporation of copper (Cu) nanoparticles (NPs) into PTFE matrix is an effective method to improve the surface properties of PTFE to exhibit mechanical properties for use in tribology [7].…”