STUDY OF COMPOSITION AND PROPERTIES OF SILICON-CARBON-CONTAINING COMPOSITES PRODUCED FROM THE RICE HULLS AND THEIR DERIVATIVES

The purpose of this work is determination of characteristics of С-SiO2 and C-βSiC composite produced from the rice hulls and their components ? lignin and cellulose as fillers of constructional carbon materials and elastomers. C-SiO2 composite was received by pyrolysis of the initial materials and C-βSiC composite was produced by its synthesis from C-SiO2. F or the first time it was shown that carbon and silicon dioxide in С-SiO2 composites from lignin and cellulose are in the amorphous form whereas in C-βSiC composites carbon is close to graphite. Composition and properties of the produced composites allow them to be treated as effective fillers of constructional carbon materials and elastomers used instead of artificial graphite and technical carbon which will provide a higher physical-mechanical properties and service life of the products.