Технології перероблення вживаної деревини для виробництва якісних деревин-ностружкових плит

Сергій Гайда

doi:10.36930/42144010

Authors

S.V. Gayda Ukrainian National Forestry University https://orcid.org/0000-0001-7468-5661

DOI:

https://doi.org/10.36930/42144010

Keywords:

post-consumer wood, PCW potential, particleboard, chips, physical and mechanical properties of panels, mechanical models, woodworking techniques, practical recommendations.

Abstract

It is found that post-consumer wood (PCW) is as yet non utilized resource of wood waste that is suitable for manufacturing wood particleboards (PB). The study reveals a problem the point of which is the absence of resource-saving and environmentally benign technologies; also practical recommendations have been given as to the use of PCW in woodworking industry. It has been suggested that the given problem could be solved in several steps: evaluation of the current state of the problem; justification of PCW classification and estimation of its potential; development of the procedure for conducting experimental investigations; modelling technological processes; analysing results of the experimental investigations; development of technological processes and practical recommendations as to the PCW utilization; implementation of the investigation results into practice. A system approach to PCW recycling was used. Investigated was the influence of the PCW and binder contents in each of the layers on physical and mechanical properties of three-layer particleboards: bending strength, tensile strength perpendicular to plane, and thickness swelling. Obtained were adequate mathematical models of dependence of WPB physical and mechanical properties on the PCW contents in each layer and the binder. It was proposed to establish an area for PCW preparation. Production techniques for PCW-containing three-layer particleboards were developed.

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