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.
Published Date 2015, Pages 91–102, doi:10.1016/B978-1-78242-454-3.00005-6 Author
G.A. Ormondroyd
B. Stefanowski
Abstract
This chapter will explore the manufacturing processes involved in the production of fibre-based panel products, primarily medium density fibreboard and hardboard. This chapter will look at the history of the products and the science behind the production of the products. The application and usage of the products will be explored, and the influence of standardisation on the quality and use of the products will be touched upon.
Keywords
Fiberboards
MDF
Standards
Low density fibreboard
Manufacture
Figure 5.1.
Table 5.1
Table 5.1.Figure 5.2.Figure 5.3.
Table 5.2
Table 5.2.
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Published Date 2015, Pages 27–45, doi:10.1016/B978-1-78242-454-3.00002-0 Author
J.R. Moore
D.J. Cown
Abstract
In order for wood to be used to make composite products, feedstock originating from trees and logs must first be obtained, sometimes as a by-product of other primary wood processing operations. This chapter provides a summary of primary wood processing as it relates to the production of the raw materials used in wood composites. It begins with an overview of peeling and sawmilling, which are used to provide the materials for solid wood composites. It then describes the production of chips, flakes and fibres that are used to manufacture composite panels. Finally, a brief overview is presented on the production of nanocellulose from wood.
Published Date 2015, Pages 69–89, doi:10.1016/B978-1-78242-454-3.00004-4 Author M. Hughes Abstract The history of plywood can be traced back to the time of pharaohs in ancient Egypt, but it really came to prominence as a structural engineered wood product through two significant innovations: the invention of rotary peeling for producing wood veneer at industrial scale in the late-nineteenth century and the advent of synthetic waterproof adhesives in the early twentieth century. These breakthroughs led to the development of strong and durable wood composites that could be used in a variety of demanding applications. Later developments resulted in laminated veneer lumber and parallel strand lumber, which opened up further application areas for veneer-based, engineered wood products, which continue to expand to this day. Keywords
The article considers contemporary methods and especially recycling of wood waste. The volume of wood waste is constantly growing due to the increase in the number of buildings subject to demolition or dismantling, reconstruction and repair works. The article contains the main requirements to the raw material derived from waste. Advantages of products made from wood-polymer composite materials on physic mechanical parameters. The comparative characteristic of cost for the production of wood-polymer plastic. It is noted that production made from wood polymer composite materials has unlimited product range, including boards, various profiled molded and moulded details with complicated shape (the board for the floor, skirting board, baguette, etc).