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Research Article | Open Access

Designing soft/hard double network hydrogel microsphere/ UHMWPE composites to promote water lubrication performance

Chaobao WANG1,2, Xiuqin BAI1,2( ), Conglin DONG1,2, Zhiwei GUO1,2, Chengqing YUAN1,2( ), Anne NEVILLE1,3
School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Key Laboratory of Marine Power Engineering & Technology (Ministry of Transport), Wuhan University of Technology, Wuhan 430063, China
Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
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Abstract

Several soft tissues residing in the living body have excellent hydration lubrication properties and can provide effective protection during relative motion. In order to apply this advantage of soft matters in practical applications and try to avoid its disadvantage, such as swelling and weakening in water, a design strategy of a soft/hard double network (DN) hydrogel microsphere modified ultrahigh molecular weight polyethylene (UHMWPE) composite is proposed in this study. A series of microspheres of urea-formaldehyde (UF), polyacrylamide (PAAm) hydrogel, UF/PAAm double network, and their composites were prepared. The mechanical properties, swelling, wettability, friction properties, and the lubrication mechanisms of the composites were investigated. The results show that DN microspheres can have an excellent stability and provide hydration lubrication. The performance of 75 DN-1 composite was superior to others. This finding will provide a novel strategy for the development of water-lubricated materials and have wide application in engineering fields.

Keywords

double networkmicrospherecompositefriction propertieshydration lubrication

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Friction
Volume 9 Issue 3,
June 2021
Pages 551-568
DOI: 10.1007/s40544-020-0404-1

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Cite this article:
WANG C, BAI X, DONG C, et al. Designing soft/hard double network hydrogel microsphere/ UHMWPE composites to promote water lubrication performance. Friction, 2021, 9(3): 551-568. https://doi.org/10.1007/s40544-020-0404-1

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Received: 17 February 2020
Revised: 23 April 2020
Accepted: 17 May 2020
Published: 05 October 2020
© The author(s) 2020

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