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Green and self‐lubricating polyoxymethylene composites filled with low‐density polyethylene and rice husk flour
Author(s) -
Li Ke,
Xiang Dinghan,
Lei Xiaoyu
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.27603
Subject(s) - polyoxymethylene , low density polyethylene , materials science , composite material , crystallinity , composite number , molding (decorative) , abrasion (mechanical) , polyethylene , scanning electron microscope , compression molding , tribology , high density polyethylene , wood flour , husk , polymer , mold , botany , biology
Polyoxymethylene (POM) composites filled with low‐density polyethylene (LDPE) and rice husk flour (RHF) were prepared by injection molding. The POM/5 wt % LDPE/7.5 wt % RHF composite exhibited the lowest wear rate, whereas the coefficient of friction remained low, and the POM/5 wt % LDPE/5 wt % RHF composite had the best mechanical properties. X‐ray diffraction analysis was carried out, and the worn surfaces were examined with scanning electron microscopy. The results showed that the addition of the filler reduced the crystallinity degree of the POM composites. The main wear mechanism for unfilled POM was adhesion, whereas for the POM composites, wear seemed to occur mainly by fatigue and abrasion. It was experimentally confirmed that the POM composite filled with LDPE and RHF, which is well‐performing, low‐cost, and environmentally friendly, could be a potential material for tribological applications. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008