FIELD: wood-working industry.
SUBSTANCE: invention relates to wood-working industry, in particular to compositions for the production of wood-fiber boards with reduced fire hazard. Composition includes wood-fiber pulp, paraffin and precipitant, sulfuric acid. Composition also comprises urea-formaldehyde resin, ammonium chloride, carbamide, paraffin and ground expanded vermiculite with pellet sizes of 0.5–0.1 mm. Composition has the following component ratio, in %: wood-fiber pulp weight is 84.5–64.5, paraffin is 1.5–0.5, urea-formaldehyde resin is 4.0–2.0, sulfuric acid is 1.5–0.5, ammonium chloride is 0.8–0.3, carbamide is 2.0–1.0, expanded vermiculite is 10.0–30.0.
EFFECT: fire hazard of wood-fiber boards is reduced.
1 cl, 2 tbl
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