| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to chemical and electrotechnical industry and can be applied for modification of rubbers and caoutchoucs, in production of high-capacity condensers and composite materials. Finely milled mixture, containing, wt.p.: carbon - 100, oxidiser - 200, is placed into heat-resistant vessel, closed with heat-resistant mesh cover, and heated in furnace to 150-250°C. Pyrolysis of mixture is carried out in mode of self-propagating high-temperature synthesis with heating to 900°C at rate 20-30°C/min, with keeping at said temperature for 15-30 minutes and discharge of excess of released gas. As carbon, used is sugar, glucose, fructose or starch, with ammonium nitrate being used as oxidiser. Nanostructured carbon foam with volume density 0.006 g/cmand specific surface not less than 150 m/g is obtained. Output of carbon foam constitutes 31% of carbon weight.EFFECT: release of aggressive products is excluded.7 dwg, 4 ex |
