Evaluation of Sawdust and Rice Husks as Fillers for Phenolic Resin Based Wood-Polymer Composites - Open Journal of Composite Materials

OJCM > Vol.8 No.3, July 2018

Evaluation of Sawdust and Rice Husks as Fillers for Phenolic Resin Based Wood-Polymer Composites ()

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Download as PDF (Size: 1753KB) PP. 124-137

DOI: 10.4236/ojcm.2018.83010 970 Downloads 2,656 Views Citations

Author(s)

Marieme Josephine Lette^1*, Elhadji Babacar Ly², Diene Ndiaye², Akito Takasaki¹, Toshihiro Okabe³

Affiliation(s)

¹Graduate School of Engineering and Science, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo, Japan.
²UFR des Sciences Appliquées et de Technologie, Université Gaston Berger de Saint-Louis, Saint-Louis, Sénégal.
³Molecular Engineering Institute, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka, Japan.

ABSTRACT

We produced Wood-Polymer Composites (WPCs) with phenolic resin (PR) filled with saw dust (SD) and rice husks (RH) in a PR:fillerratio of 60:40 wt.%. RH and SD were grinded and sieved into particles <160 μm. The aim of this research work was to evaluate sawdust and rice husks as fillers for sustainable phenolic resin based WPCs. Therefore, we investigated the thermal stability of PR/RH and PR/SD WPCs then we studied and compared the tensile, flexural properties of PR/SD and PR/RH WPCs samples, as well as their dimensional stability after water absorption test. Furthermore, through ultraviolet light exposure, we evaluated the effects of photo-oxidation on the water stability and mechanical properties of PR/RH and PR/SD WPCs samples compared to unexposed ones. PR filled with SD presented better mechanical properties compared to PR/RH WPCs samples. However, PR/RH WPCs showed good mechanical properties, and better thermal resistance and better water repulsion capabilities compared to PR/SD WPCs samples. Although, long time UV exposure ended up lowering considerably the mechanical properties and water resistance of PR/SD and PR/RH WPCs, both RH and SD offer great added value as fillers for PR based WPCs; SD having better interactions with PR matrix compared to RH.

KEYWORDS

Wood-Polymer Composite, Phenolic Resin, Sawdust, Rice Husks, Mechanical Properties, Thermal Stability, Ultraviolet Effects, Water Absorption Properties

Share and Cite:

Lette, M. , Ly, E. , Ndiaye, D. , Takasaki, A. and Okabe, T. (2018) Evaluation of Sawdust and Rice Husks as Fillers for Phenolic Resin Based Wood-Polymer Composites. Open Journal of Composite Materials, 8, 124-137. doi: 10.4236/ojcm.2018.83010.

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