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Author Riyad, M. F. ♦ Gupta, Surojit ♦ Ji, Yun
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher MDPI AG
File Format PDF
Date Created 2016-08-31
Copyright Year ©2016
Language English
Subject Domain (in LCC) Q
Subject Keyword Particulate additives ♦ UHMWPE ♦ Science ♦ Lignin ♦ Tribology ♦ Mechanical behavior
Abstract In this paper, we report the synthesis and characterization of ultra-high molecular weight polyethylene (UHMWPE)-lignin composites. During this study four different compositions, namely UHMWPE, UHMWPE-13 wt. % lignin, UHMWPE-25 wt. % lignin and UHMWPE-42.5 wt. % lignin were fabricated by hot pressing. Detailed microstructural studies by scanning electron microscopy (SEM) showed that UHMWPE and UHMWPE-13 wt. % lignin had a uniform microstructure, whereas UHMWPE-25 wt. % lignin and UHMWPE-42.5 wt. % lignin samples were riddled with pores. UHMWPE and UHMWPE-13% lignin showed comparable flexural strengths of ~32.2 MPa and ~32.4 MPa, respectively. However, the flexural strength dropped drastically in UHMWPE-25 wt. % lignin and UHMWPE-42.5 wt. % samples to ~13 MPa and ~8 MPa, respectively. The tribology of UHMWPE-lignin composites is governed by the tribofilm formation. All the compositions showed similar µmean values and the specific wear rates (WR) decreased gradually as the concentration of lignin in UHMWPE was increased.
ISSN 20754442
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2016-08-01
e-ISSN 20754442
Journal Lubricants
Volume Number 4
Issue Number 3
Starting Page 31

Source: Directory of Open Access Journals (DOAJ)