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...Youngquist et al., 1993). This global demand started with the advent of the industrial revolution, resulting in aggressive deforestation and an increase in the concentration of global carbon dioxide (=-=Adger and Brown, 1994-=-). All indications are that the demand for forest products will increase steadily for the foreseeable future. This in turn will place increasing pressure on the wood supply. Agricultural residues, e.g...

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...a good deal of attention during the last 10/15 years, and the forest products industries, with their huge demand for raw materials, have been identified as potential consumers of the crop materials (=-=Hague et al., 1998-=-). A wide range of agri-residues and annual fibre crops could potentially be used for manufacturing composites such as particleboard. Flax shiv (the woody core generated as a waste by-product from the...

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...in particular of overcoming the problems presented by the waxy coatings prevalent on the tissues of many materials. The resin is also reported to be capable of forming covalent bonds with substrates (=-=Chelak and Newman, 1991-=-). Smaller particles are believed to give improved performance due to an increase in ‘sound’ furnish surface area available for bonding (Hague et al., 1998). Whether the use of MDI resin and/or a redu...

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...Particleboard 1. Introduction World-wide economic growth and development have generated unprecedented needs for converted forest products such as pulp and paper, composite boards, plywood and lumber (=-=Youngquist et al., 1993-=-). This global demand started with the advent of the industrial revolution, resulting in aggressive deforestation and an increase in the concentration of global carbon dioxide (Adger and Brown, 1994)....

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...ngth requirements for standard interior boards. It is suggested that alternative resins, such as isocyanates, and/or a reduction in furnish particle size, might give improvements in panel properties (=-=Papadopoulos et al., 2002a-=-). Such strategies have been shown to be efficacious in laboratory studies with a range of agri-residues. The use of MDI has also been successfully employed in the commercial manufacture of panels fro...

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...f the flax furnish and consequent reductions in mat permeability upon densification during hot pressing. Previous workers have observed similar behaviour in particleboards made from coconut residues (=-=Papadopoulos et al., 2002b-=-). 3.3. Mechanical and physical properties of panels The properties of the single layer experimental particleboards made from the various wood/flax combinations are shown in Table 3. It can be seen th...