Effect of fiber attrition, particle characteristics and interfacial adhesion on the properties of PP/sugarcane bagasse fiber composites

András Bartos; Judit Kócs; Juliana Anggono; János Móczó; Béla Pukánszky

Polymer Testing (Jun 2021)

Effect of fiber attrition, particle characteristics and interfacial adhesion on the properties of PP/sugarcane bagasse fiber composites

András Bartos,
Judit Kócs,
Juliana Anggono,
János Móczó,
Béla Pukánszky

Affiliations

András Bartos: Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521, Budapest, P.O. Box 91, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1519 Budapest, P.O. Box 286, Hungary; Corresponding author. Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521 Budapest, P.O. Box 91, Hungary.
Judit Kócs: Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521, Budapest, P.O. Box 91, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1519 Budapest, P.O. Box 286, Hungary
Juliana Anggono: Department of Mechanical Engineering, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya, 60236, Indonesia
János Móczó: Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521, Budapest, P.O. Box 91, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1519 Budapest, P.O. Box 286, Hungary
Béla Pukánszky: Laboratory of Plastics and Rubber Technology, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521, Budapest, P.O. Box 91, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1519 Budapest, P.O. Box 286, Hungary

Journal volume & issue: Vol. 98
p. 107189

Abstract

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PP/sugarcane bagasse fiber composites were prepared by injection molding from two fractions of fibers with different particle characteristics. The mechanical properties of the composites were characterized by tensile and impact measurements, while local deformation processes by acoustic emission testing and microscopy. The determination of fiber dimensions after processing showed that considerable attrition takes place during melt processing in both the length and the diameter of the fibers. Interfacial adhesion can be improved considerably by coupling. The strength of adhesion was estimated quantitatively and adhesion was ten times stronger (1600 mJ/m2) in the presence of the coupling agent than without it (140 mJ/m2) leading to larger composite strength in the former case. Local deformation processes also change with the strength of adhesion, debonding dominates without the coupling agent, while fiber fracture takes place at good adhesion. Fiber fracture consumes energy that leads to an increase in impact resistance. The size of the fibers must be reduced in order to achieve better properties, but the application of coupling cannot be avoided even in that case.

Published in Polymer Testing

ISSN: 0142-9418 (Print); 1873-2348 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Polymers and polymer manufacture
Website: https://www.journals.elsevier.com/polymer-testing

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