METHOD OF PRODUCTION OF ORGANIC BUILDING MATERIAL ON BASE OF FLAXEN BOON Russian patent published in 2007 - IPC C04B18/24 C04B40/00 

FIELD: construction engineering; manufacture of heat-insulating building materials for warmth-keeping of dwelling houses and industrial buildings, storehouses and hot liquid supply pipes; finishing materials possessing structural properties.

SUBSTANCE: proposed method includes hydrolysis of flaxen boon in aqueous solution of sodium hydroxide at concentration lesser than 5% and temperature of 280-300K at the following ratio of components, mass-%: dry flaxen boon, 15-17; aqueous solution of sodium hydroxide, 83-85; hydrolysis is continued for 1-12 hours; then, hydrolyzed flaxen boon is subjected to defibrination by forcing it between two similar shafts revolving in opposite directions at different angular velocities; these shafts are provided with straight longitudinal riffles and parallel axles mounted at spaced relation between maximum diameters of shafts for control of this clearance; ratio of shaft rotational speed is no less than 1.4; clearance between maximum diameters of shafts is 1-5 mm. Then, material is subjected to molding and drying.

EFFECT: facilitated procedure at retained strength properties of organic building material.

2 cl, 3 dwg, 1 tbl