Physical, mechanical, and thermal properties of polypropylene composites filled with walnut shell flour


Ayrilmis N. , Kaymakci A., Ozdemir F.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol.19, no.3, pp.908-914, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 3
  • Publication Date: 2013
  • Doi Number: 10.1016/j.jiec.2012.11.006
  • Title of Journal : JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Page Numbers: pp.908-914

Abstract

Injection molded specimens were prepared from the walnut shell flour and polypropylene with and without maleic anhydride-grafted polypropylene at 40, 50, and 60% (weight) contents of the walnut shell. The bending and tensile modulus of the composites significantly increased with increasing the filler content while the bending and tensile strengths significantly decreased. Water absorption and thickness swelling of the composites increased with increasing filler content. The MAPP improved the interfacial adhesion between walnut shell flour and polymer matrix. A 40/57/3 formulation of the walnut shell flour/polypropylene/MAPP can be used in outdoor applications requiring a high dimensional stability. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.