Effect UV/O3 modified rice husk on the mechanical properties of recycle HDPE rice husk composite

Nishata Royan Rajendran Royan, Abu Bakar Sulong, Nor Yuliana Yuhana Mohd, Mohd Hafizuddin Abdul Ghani, Sahrim Ahmad

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Modifications of rice husk (RH) surfaces by ultraviolet-ozonolysis (UV/O3) treatment were carried out in order to study the effects on the mechanical properties. The untreated and treated RH was characterized by FTIR, TGA and SEM. Recycled HDPE/RH composites were prepared with five different loading of RH fibers (10, 20, 30, 40 and 50 wt %) using the twin-screw extrusion method. Maleic anhydride grafted polyethylene (MAPE) was added as a coupling agent. Tensile modulus shows an increase trend while tensile strength shows a decline trend with addition of RH loading regardless of treatments. However, composites filled with UV/O3-treated RH give a better result in comparison with composites filled with untreated RH. UV/O3 treatment removes lignin, hemicellulose, fats and waxes from RH surfaces thus giving a rougher surface on RH. Therefore, UV/O3 treatment can be used as an alternative method to modify RH surface in order to improve the adhesion between hydrophilic RH fibre and hydrophobic recycled high-density polyethylene (rHDPE) polymer matrix.

Original languageEnglish
Pages (from-to)13-22
Number of pages10
JournalJournal of Mechanical Engineering
VolumeSI 3
Issue number2
Publication statusPublished - 1 Jan 2017

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High density polyethylenes
Mechanical properties
Composite materials
Fibers
Coupling agents
Waxes
Maleic anhydride
Oils and fats
Lignin
Polymer matrix
Extrusion
Polyethylenes
Tensile strength
Adhesion
Elastic moduli
Scanning electron microscopy

Keywords

  • Surface modification
  • Tensile properties
  • UV/O3 treatmen

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Effect UV/O3 modified rice husk on the mechanical properties of recycle HDPE rice husk composite. / Royan, Nishata Royan Rajendran; Sulong, Abu Bakar; Mohd, Nor Yuliana Yuhana; Ghani, Mohd Hafizuddin Abdul; Ahmad, Sahrim.

In: Journal of Mechanical Engineering, Vol. SI 3, No. 2, 01.01.2017, p. 13-22.

Research output: Contribution to journalArticle

Royan, Nishata Royan Rajendran ; Sulong, Abu Bakar ; Mohd, Nor Yuliana Yuhana ; Ghani, Mohd Hafizuddin Abdul ; Ahmad, Sahrim. / Effect UV/O3 modified rice husk on the mechanical properties of recycle HDPE rice husk composite. In: Journal of Mechanical Engineering. 2017 ; Vol. SI 3, No. 2. pp. 13-22.
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