The influence of additives from conifer foliage flouron quality of fiberboard

In the context of the development of the timber industry in Russian Federation the issue of wastes generated in the process of logging is critical. An assessment of the ways of use of logging waste showed that woodfoliage could be used as raw material in the logging industry for the production of granular fuel. In the woodbiorefinery it is used for the manufacture of chlorophyll-carotene paste, sodium chlorophyllin, spruce extract. In agro-industrial production coniferous-vitamin flour is made from wood foliage. Today, fiberboards (Fibreboards) are widely used in house constructions as structural, finishing and insulation materials. The present investigation was performed with the purpose to study the effect of the addition of logging wastes such as flour from coniferous needles on the physical and mechanical parameters of a fiberboard. As a result,the mechanisms of the influence of the percentage of flour in the total amount of wood fiber mass and particle sizes on the physical and mechanical parameters of fiberboard has been revealed. Statistical-mathematical equations and graphical dependencies are obtained that allow the predictionof mechanical properties, density, water absorption and swelling of wood-fiber boards at a given content of ground needles and the size of its particles.