Abstract
ABSTRACTPoly(ether‐ether‐ketone) (PEEK) is a known bio‐implant material due to its excellent mechanical properties. However, the challenging issue of high friction coefficient limits the PEEK applications. In this article, double‐layered hydrogel material was obtained by laser processing, surface sulfonation, and poly(vinyl alcohol) (PVA) casting. Characterizations of FT‐IR, XRD, SEM, and 3D‐morphology demonstrate that PVA‐LSPEEK hydrogel was achieved successfully. PVA‐LSPEEK exhibits an extremely smooth surface with a roughness of 0.079 μm. And this hydrogel presents an excellent mechanical adhesion to PEEK substrate, forming a soft‐hard structure. Tribological properties of PVA‐LSPEEK are improved drastically when compared to the PEEK substrate. This innovative hydrogel material provides a potential application in articular cartilage defect repair. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47944.
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