METHOD OF PREPARING POLYMER NANOCOMPOSITES Russian patent published in 2010 - IPC B82B3/00 C08L81/06 C08L77/00 C08K3/34 C08K5/19 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of preparing nanocomposites based on polymers and nanosilicates modified with organic compounds with better strength characteristics, designed for making articles in electrical engineering and mechanical engineering. The method involves mixing in molten mass of polymer - polysulfone or polyamide and filler - montmorrilonite or bentonite with cation exchange capacity of 60 - 150 mg-eq/100 g. The filler which is in form of an aqueous dispersion with concentration of 1-7% is pre-modified with organic cations through mixing and then drying. The ionic surfactant used is alkylbenzyldimethylammonium chloride taken in amount of 40-150% of the cation exchange capacity of the filler.

EFFECT: method provides improved technological parametres, including higher modulus of elasticity.

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