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J. Compos. Sci. 2018, 2(2), 35; https://doi.org/10.3390/jcs2020035

Use of Recycled Pulped Chromated Copper Arsenate-Treated Wood Fibre in Polymer Composites

1
Department of Mechanical Engineering, Eindhoven University of Technology, 5600MB Eindhoven, The Netherlands
2
School of Engineering, The University of Waikato, Hamilton 3240, New Zealand
*
Author to whom correspondence should be addressed.
Received: 8 May 2018 / Revised: 1 June 2018 / Accepted: 5 June 2018 / Published: 11 June 2018
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Abstract

The goal of this study was to investigate if it is possible to recycle chromated copper arsenate (CCA)-treated wood for use in wood polymer composites. This was done by soda pulping wood chips of CCA-treated lumber in a laboratory-scale digester. Composites of 10–30 weight percentage of filler in polypropylene were produced with and without the addition of maleic anhydride grafted polypropylene (MAPP) as a coupling agent. These composites were produced using extrusion compounding and injection moulding. The mechanical properties were determined using tensile testing; the properties examined in this study are the ultimate tensile strength, Young’s modulus and strain at break. The effect of the CCA-treated filler on the dimensional stability was investigated by comparing the moisture absorption with virgin wood-filled composites. It was found that ultimate tensile strength improves with increasing filler percentage for the compositions with MAPP. The Young’s modulus increases with increasing filler percentage for all compositions, and failure strain decreases with increasing filler percentage for all compositions. Moisture absorption studies show that the moisture absorption decreases when MAPP is added to the composite, and a slight decrease in moisture uptake is observed for the CCA-treated wood composites with respect to the virgin wood composites. View Full-Text
Keywords: wood fibres; polypropylene; chromated copper arsenate (CCA)-treated wood; recycled wood fibres; polypropylene; chromated copper arsenate (CCA)-treated wood; recycled
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Peerbooms, W.; Pickering, K.L. Use of Recycled Pulped Chromated Copper Arsenate-Treated Wood Fibre in Polymer Composites. J. Compos. Sci. 2018, 2, 35.

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