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Preparation and characterization of composites of polyethylene with polypyrrole‐coated wollastonite
Author(s) -
Ong Chu Kuen,
Ray Sudip,
Cooney Ralph P.,
Edmonds Neil R.,
Easteal Allan J.
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.28698
Subject(s) - materials science , thermogravimetric analysis , composite material , wollastonite , polyethylene , vinyl alcohol , scanning electron microscope , polypyrrole , composite number , compression molding , raman spectroscopy , ultimate tensile strength , chemical engineering , polymer , polymerization , chemistry , organic chemistry , raw material , mold , physics , optics , engineering
Composite sheets of polyethylene and polypyrrole‐coated wollastonite were prepared by extrusion and compression molding. Four compatibilizers were also evaluated, poly(ethylene‐ co ‐methyl acrylate) (EMA), maleated polyethylene (MAPE), poly(ethylene‐ co ‐vinyl alcohol) (EVOH), and poly(vinyl alcohol) (PVOH). The composite materials were characterized using X‐ray diffraction, thermogravimetric analysis, scanning electron microscopy (SEM), Raman spectroscopy, and mechanical properties determined by tensile tests. SEM micrographs showed that significantly improved interactions occurred between the PE matrix and polypyrrole‐coated wollastonite particles in the presence of EMA, MAPE, and EVOH. Raman spectroscopy confirmed that the polypyrrole coating on the wollastonite particles was not thermally degraded during melt processing. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008