A1 Journal article (refereed), original research

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)

Open Access publication

Publication Details

Authors: Lahtela Ville, Kärki Timo

Publication year: 2021

Language: English

Related journal or series: Journal of Composites Science

Volume number: 5

Issue number: 8

eISSN: 2504-477X

JUFO level of this publication: 1

Digital Object Identifier (DOI): http://dx.doi.org/10.3390/jcs5080205

Permanent website address: https://www.mdpi.com/2504-477X/5/8/205

Open Access: Open Access publication


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.

LUT Focus Areas

Last updated on 2021-04-08 at 08:15