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Effect of a macromolecular coupling agent on the properties of aluminum hydroxide/PP composites

✍ Scribed by Rafael S. Plentz; Maximiliano Miotto; Elisangela E. Schneider; Mş Madalena C. Forte; Raquel S. Mauler; Sonia M. B. Nachtigall


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
714 KB
Volume
101
Category
Article
ISSN
0021-8995

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✦ Synopsis


Abstract

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


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