METHOD FOR MANUFACTURE OF PRODUCTS FROM COMPOSITE MATERIALS, MOSTLY CEMENT WOOD Russian patent published in 2009 - IPC B27N3/14 

FIELD: technological processes.

SUBSTANCE: in method for manufacture of products from composite materials, mostly cement wood, which includes stages of wood filler and binder preparation, treatment of wood particles in electric field, preparation of cement wood mixture, moulding and thermal treatment, wood particles are treated in flow of orifice gas in discharge chamber at high frequency generator capacity of 200-600 W and underpressure of 100-130 Pa for 250-280 sec. Orifice gas used is air, and its flow rate makes 0.08-0.12 g/sec. Due to plasma treatment of wood particles, interface interaction at the border of wood and mineral binder is intensified as a result of surface loosening, opening of pores and capillaries.

EFFECT: increase of physical and mechanical properties of products from composite materials by modification of wood particle surface structure.

1 dwg, 2 tbl