Engineering Interfaces toward High-Performance Polypropylene/Coir Fiber Biocomposites with Enhanced Friction and Wear Behavior

Liu, Lina and Wang, Zhenyu and Yu, Youming and Fu, Shenyuan and Nie, Yujing and Wang, Hao and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X (2019) Engineering Interfaces toward High-Performance Polypropylene/Coir Fiber Biocomposites with Enhanced Friction and Wear Behavior. ACS Sustainable Chemistry & Engineering, 7 (22). pp. 18453-18462. ISSN 2168-0485


Abstract

High-performance natural plant fibers reinforced polymer biocomposites with excellent friction and wear properties hold significant practical applications in industry. Unfortunately, it remains a major challenge to engineer the interfacial interactions between the fibers and the polymer matrix, which determines the mechanical and wear properties of the final composites. Herein, we engineer the coir fiber surface by depositing polyethylenimine (PEI) and graphene nanosheets and then prepare the polypropylene/coir fiber biocomposites. As compared with unmodified coir fibers, graphene decorated coir fibers can remarkably reduce the friction and wear, with the lowest friction coefficient at 0.19 and wear rate at 3.5 × 10–7 g/r. The excellent friction-reducing and wear-resistance performances are mainly attributed to three factors, namely the enhanced interfacial bonding, optimized crystallinity, and the formation of a transfer film. The transfer film is comprised of a polypropylene, PEI, and graphene nanosheets. This work provides a facile methodology for the design of high-performance polymer biocomposites with enhanced friction and wear behaviors. The results can also contribute to expand the practical applications of polymer biocomposites in industry.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 25 Jan 2021 04:29
Last Modified: 31 Jan 2021 23:21
Uncontrolled Keywords: Coir fiber; Graphene; Polypropylene; Biocomposites; Friction; Wear
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.1021/acssuschemeng.9b04381
URI: http://eprints.usq.edu.au/id/eprint/40606

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