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A Study on the Effect of Construction and Demolition Waste (CDW) Plastic Fractions on the Moisture and Resistance to Indentation of Wood-Polymer Composites (WPC)

by 1,* and 2
1
SCI-MAT Research Platform, LUT University, P.O. Box 20, FI-53851 Lappeenranta, Finland
2
Fiber Composite Laboratory, LUT University, P.O. Box 20, FI-53851 Lappeenranta, Finland
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco Tornabene and Thanasis Triantafillou
J. Compos. Sci. 2021, 5(8), 205; https://doi.org/10.3390/jcs5080205
Received: 3 June 2021 / Revised: 18 July 2021 / Accepted: 2 August 2021 / Published: 3 August 2021
(This article belongs to the Special Issue Wood-Polymer Composites)
This paper investigated the moisture and strength properties of wood-polymer composites (WPC), which were made using three different recycled polymers using wood flour as filler. The recycled polymers were acrylonitrile butadiene styrene (ABS), polypropylene (PP), and polyethylene (PE), which were collected from among the construction and demolition waste (CDW) at a local waste management center. The commercial additives, such as a coupling agent and lubricant, were also included in the materials. Composite materials were manufactured with an agglomeration and an extrusion process. Water absorption and thickness swelling properties of composites, based on the recycled ABS and PE, were restricted compared to the recycled PP. The strength properties of WPC were determined with two methods, a traditional Brinell hardness and resistance to indentation. Using an ABS polymer as a matrix in the composite, the moisture and strength properties were improved. The recycled PP polymer caused these properties to be lowered, especially in the case of moisture properties. This study has shown that the method used can affect the measured value of certain properties. In addition, the sorting of recycled polymer fractions is desirable for the appearance of improved properties. View Full-Text
Keywords: construction and demolition waste; wood-polymer composite; water absorption; thickness swelling; Brinell hardness; indentation construction and demolition waste; wood-polymer composite; water absorption; thickness swelling; Brinell hardness; indentation
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MDPI and ACS Style

Lahtela, V.; Kärki, T. A Study on the Effect of Construction and Demolition Waste (CDW) Plastic Fractions on the Moisture and Resistance to Indentation of Wood-Polymer Composites (WPC). J. Compos. Sci. 2021, 5, 205. https://doi.org/10.3390/jcs5080205

AMA Style

Lahtela V, Kärki T. A Study on the Effect of Construction and Demolition Waste (CDW) Plastic Fractions on the Moisture and Resistance to Indentation of Wood-Polymer Composites (WPC). Journal of Composites Science. 2021; 5(8):205. https://doi.org/10.3390/jcs5080205

Chicago/Turabian Style

Lahtela, Ville, and Timo Kärki. 2021. "A Study on the Effect of Construction and Demolition Waste (CDW) Plastic Fractions on the Moisture and Resistance to Indentation of Wood-Polymer Composites (WPC)" Journal of Composites Science 5, no. 8: 205. https://doi.org/10.3390/jcs5080205

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