POLYMER COMPOSITE MATERIAL AND PROCESS FOR PRODUCING THE SAME

摘要

A polymer composite material which comprises a thermoplastic resin and a lamellar inorganic compound dispersed therein on the order of submicron to nanometer and which is excellent in mechanical properties, heat resistance, etc.; and a production process which comprises kneading a thermoplastic resin together with a lamellar inorganic compound swollen with a dispersion medium comprising water and/or an organic solvent with a shearing kneader at a temperature which is lower than the melting temperature of the thermoplastic resin and not higher than the boiling point of the dispersion medium and then kneading the resultant mixture while heating it to a temperature not lower than the boiling point of the dispersion medium. By the production process, a polymer composite material containing a lamellar inorganic compound is obtained which has the desired properties.