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Effect of a macromolecular coupling agent on the properties of aluminum hydroxide/PP composites
Author(s) -
Plentz Rafael S.,
Miotto Maximiliano,
Schneider Elisangela E.,
Forte Mş Madalena C.,
Mauler Raquel S.,
Nachtigall Sonia M. B.
Publication year - 2006
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.23558
Subject(s) - materials science , vinyltriethoxysilane , polypropylene , ultimate tensile strength , composite material , flammability , hydroxide , decomposition , melt flow index , thermal decomposition , coupling (piping) , copolymer , polymer , chemical engineering , chemistry , organic chemistry , silane , engineering
Polypropylene (PP)/aluminum hydroxide (ATH) composites were prepared in a melt mixer with addition of polypropylene functionalized with vinyltriethoxysilane (VTES) as a coupling agent. The effects of ATH and PP‐VTES on the melt flow indices (MFI), tensile properties, decomposition temperatures, and flame retardancy of composites were analyzed. It was verified that increased ATH concentration reduced MFI and tensile properties, but increased the decomposition temperature under oxidative atmosphere and improved the flammability properties. Addition of PP modified with VTES slightly improved tensile strength and maximum elongation and granted the best results for the flammability tests of the materials showing that it can be an effective coupling agent for PP/ATH composites. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1799–1805, 2006