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Influence of Fiber Treatment on the Mechanical and Morphological Properties of Sawdust Reinforced Polypropylene Composites

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Abstract

In the present work, sawdust reinforced polypropylene composites were fabricated using an extruder and an injection molding machine. Raw sawdust was chemically treated with benzene diazonium salt in order to improve the mechanical properties of the composites. The effect of the chemically treated sawdust reinforced PP composites was evaluated from their mechanical and surface morphological properties. The values of the mechanical properties of the chemically treated sawdust–PP composites were found to be significantly higher than those of the raw ones. Water uptake tests revealed that composites prepared from the chemically treated sawdust absorb lower amount of water compared to the ones prepared from raw sawdust, suggesting that hydrophilic nature of the cellulose in the sawdust has significantly decreased upon chemical treatment. The surface morphology obtained from scanning electron microscopy (SEM) showed that raw sawdust–PP composites possess surface roughness with extruded filler moieties, and weak interfacial adhesion between the matrix and the filler while the chemically treated one showed improved filler–matrix interaction. This indicates that better dispersion of the filler with the PP matrix has occurred upon chemical treatment of the filler.

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Authors and Affiliations

  1. Department of Chemistry, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh

    Md. Rezaur Rahman, Md. Nazrul Islam & Md. Monimul Huque

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  1. Md. Rezaur Rahman
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  2. Md. Nazrul Islam
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  3. Md. Monimul Huque
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Correspondence to Md. Nazrul Islam.

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Rezaur Rahman, M., Nazrul Islam, M. & Monimul Huque, M. Influence of Fiber Treatment on the Mechanical and Morphological Properties of Sawdust Reinforced Polypropylene Composites. J Polym Environ 18, 443–450 (2010). https://doi.org/10.1007/s10924-010-0230-z

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  • DOI: https://doi.org/10.1007/s10924-010-0230-z

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