Особенности технологии древесноволокнистых плит, получаемых из древесины лиственных пород

Abstract

The present researches are directed on studying of influence of separate soft hardwood and their mixes on physicomechanical indicators of received wood-fiber plates. Properties of the basic component of a composition of the plates, defining quality of finished goods – a defibrators wood pulp are investigated. Experiments are spent with the cores forest formative soft hardwood of Byelorussia – a birch, an aspen, an alder black. It is established, that use of this wood in an initial condition at reception of wood-fiber plates is technically inexpedient, that is connected with their low durability. Chemical processing wood щепыbefore defibrators milling a carbamide and lye from magnesium-bisulfitnoj of cooking of cellulose with expenses of 3% to а. d. s., allows to raise technical properties of a wood pulp and, hence, and durability of plates on size to 30%. Results of industrial tests have confirmed laboratory researches and have shown, that use of such reception in technology of wood-fiber plates allows to receive plates from wood of deciduous breeds demanded by the quality standard.