Regulation Mechanism of Special Functional Groups Contained in Polymer Molecular Chains on the Tribological Properties of Modified Ti6Al4V.

Mengmeng Liu, Jing Ni, Caixia Zhang, Lihui Wang, Yue Guo, Zhifeng Liu

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Article in Polymers, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors at 3 institutions in 1 country.

Mengmeng LiuSchool of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.

Jing NiSchool of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.ORCID 0000-0003-4973-7241

Caixia ZhangInstitute of Advanced Manufacturing and Intelligent Technology, Beijing University of Technology, Beijing 100124, China.

Lihui WangInstitute of Advanced Manufacturing and Intelligent Technology, Beijing University of Technology, Beijing 100124, China.

Yue GuoSchool of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.

Zhifeng LiuKey Laboratory of CNC Equipment Reliability, Ministry of Education, Jilin University, Changchun 130012, China.

Hangzhou Dianzi University · CNBeijing University of Technology · CNJilin University · CN

Funding

the National Natural Science Foundation of China 51975019the National Natural Science Foundation of China 52175157the National Natural Science Foundation Regional Innovation and Development Joint fund U21A20134

6 · The paper itself

Abstract

Polymer coatings can effectively improve the surface tribological properties of human implant materials, thereby increasing their service life. In this study, poly(vinylsulfonic acid, sodium salt) (PVS), poly(acrylic acid) (PAA) and poly(vinylphosphonic acid) (PVPA) were used to modify Ti6Al4V surfaces. Experimental analyses were combined with molecular simulation to explore the regulation mechanism of special functional groups contained in polymer molecular chains on the tribological properties of modified surfaces. In addition, the bearing capacities and velocity dependence of different polymer modified surfaces during friction were also explored. The PVS coating, due to physical adsorption, can have an anti-friction effect under NaCl solution lubrication, but is not durable under long-term or repeated usage. Both PAA and PVPA molecular chains can form chemical bonds with Ti6Al4V. Phosphate acid groups can firmly bind to the substrate, and the adsorption of salt ions and water molecules can form a hydrated layer on the PVPA coating surface, achieving ultra-low friction and wear. The adsorption of salt ions would aggravate the surface wear of the PAA-modified Ti6Al4V due to the unfirm binding of carboxyl groups to the substrate, resulting in a high friction coefficient. This study can provide effective guidance for the design of modified polymer coatings on metals.

Indexed as

experimental analysesfunctional groups of polymersmolecular simulationsurface modificationTi6Al4Vtribological properties

Identifiers

PMID37896304

DOI10.3390/polym15204060

PMCPMC10609861

OpenAlexW4387573050

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.