RU95113082A - Method to produce porous materials of thermoplastic polymers - Google Patents

Abstract

FIELD: chemical industry, polymers processing of thermoplasts in particular to produce on their base porous materials used in different fields of technology, for example, to produce heat-insulating materials, materials for capsulation of fluffy substances, , pesticides, repellents etc. SUBSTANCE: based on thermoplastic resins porous material is produced by mixing of thermoplastic resin with filler with following with following foaming of mixture during moulding under heating. As filler they use mineral filler with porosity of 10 - 12 % and humidity - up to 15 %. Mineral filler is taken from group, that has zeolite, schungite, apatite with particles size of 0.04 - 1.0 mm in amount t of 10 - 75 % per 100 mass % of mixture. Foaming is exercised for 15 - 20 minutes under temperature of polymer melting. EFFECT: improved process. 1 cl

Claims (1)

The invention relates to the processing of polymers, in particular from thermoplastics, to obtain on their basis porous materials used in various fields of technology, for example, for the manufacture of heat-insulating materials, as materials for encapsulation of fragrant substances, toxic chemicals, repellents, etc. a porous material based on thermoplastic resins is obtained by mixing a thermoplastic resin with a filler, followed by foaming of the mixture during molding by heating. As the filler, a mineral filler is used with a porosity of 10-12% and a moisture content of up to 15%, selected from the group comprising zeolite, shungite, appatite with a particle size of 0.04-1.0 mm in an amount of 10 - 75 wt.% Per 100 wt. .% of the mixture, and foaming is carried out for 15-20 minutes at the temperature of the polymer melt.