Wood polymer composites

Published Date
doi:10.1016/B978-1-78242-454-3.00010-X

Author 

M.J. Spear

A. Eder

M. Carus

Abstract

The fast growing wood polymer composites (WPC) sector, and the closely related natural fibre composites (NFC) sector, presents many new opportunities for utilising wood as well as natural fibres or agricultural residues, as filler or reinforcement in polymer profiles and mouldings. The field combines wood processing techniques for fibre or filler preparation with polymer science and engineering, and a range of polymer processing techniques including extrusion, injection moulding, compression moulding and pultrusion.

This chapter sets out a basic introduction of many of these concepts, while discussing the effects of varying feedstocks and techniques on physical properties. The additives, compatibilisers and other options available to enhance product quality and product service life are also explored. The industry has addressed and overcome many technical challenges during its growth phase, and standards for measuring and reporting product performance, or labelling schemes for consumer confidence in product life have been established. Recycling is one significant driver for the WPC market in some regions, while the renewable content (both fibre and biopolymer) is also sought. Recognition of the use of fibre from sustainably managed resources is possibly through Forest Stewardship Council and Programme for Endorsement of Forest Certification schemes.

Keywords

Wood polymer composites

Natural fibre composites

Extrusion

Injection moulding

Compatibiliser

Market

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