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Effect of perfluoroalkylmethacrylate ester‐ grafted ‐linear low‐density polyethylene on the tribological property of polyoxymethylene–linear low‐density polyethylene composites
Author(s) -
He Junqing,
Zhang Ling,
Li Chunzhong
Publication year - 2011
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21915
Subject(s) - linear low density polyethylene , materials science , polyoxymethylene , composite material , composite number , polyethylene , tribology , polymer
In this work, perfluoroalkylmethacrylate ester (PFAMAE)‐ grafted ‐linear low‐density polyethylene (LLDPE) was synthesized by UV‐induced surface graft polymerization. The effect of PFAMAE‐ grafted ‐LLDPE on the tribological behavior of LLDPE‐filled polyoxymethylene (POM) composite was investigated using a friction and abrasion testing machine. The results showed that LLDPE‐ g ‐PFAMAE was a more effective modifier in improving tribological property of LLDPE‐filled POM composite than conventional maleic anhydride‐ grafted ‐polyethylene (PE‐ g ‐MAH). POM/LLDPE composite possessed much lower friction coefficient but higher wear rate than pristine POM. The incorporation of LLDPE‐ g ‐PFAMAE into POM/LLDPE further decreased the friction coefficient, which was 45% lower than that of POM. The wear rate of POM/LLDPE/LLDPE‐ g ‐PFAMAE composite was also reduced and was lower than that of pristine POM. The primary wear mechanisms of POM/LLDPE composite with and without LLDPE‐ g ‐PFAMAE were adhesive and abrasive wear. POLYM. ENG. SCI., 2011. © 2011 Society of Plastics Engineers