| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to olefin-containing compositions for producing wood materials and crude wood materials, use of olefins to endow crude wood materials with hydrophobicity and a method of producing wood materials from crude wood materials. The composition contains crude wood materials from lignocellulose in form of fibres, chips or shavings, as well as olefins or a wax composition. The wax composition contains olefins and additionally paraffin wax in form of long-chain saturated hydrocarbons. The olefins contain an average of 24-50 carbon atoms; more than 50 mol % are alpha-olefins; have a maximum of carbon chain length distribution between 24 and 40 carbon atoms. Bringing crude wood materials (shavings, chips, fibres) into contact with said olefins and optionally together with paraffin wax provides hydrophobisation thereof. Binder is added to said composition to obtain fibreboards, wood chipboards and oriented strand boards.EFFECT: invention enables to obtain end products with good hydrophobic properties.23 cl, 2 tbl, 2 ex |
