FIELD: fire safety.
SUBSTANCE: invention relates to natural graphite processing and can be used to produce heat and fire protective materials. The original graphite is treated with the mixture of nitric and sulfuric acids, washed and dried. Then petroleum asphalt in the amount of 5-20 wt % is introduced to the oxidised graphite and the latter is thermally treated in the air.
EFFECT: invention allows for the increase of the expansion coefficient and simplification of the thermally expanded graphite manufacturing technique.
1 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING POROUS CARBON MATERIAL FROM NATURAL GRAPHITE | 2008 |
|
RU2398737C2 |
| METHOD FOR PRODUCTION OF GRAPHITE FOIL | 2009 |
|
RU2416586C1 |
| METHOD OF PRODUCING THERMALLY EXPANDED GRAPHITE, THERMALLY EXPANDED GRAPHITE AND FOIL BASED THEREON | 2011 |
|
RU2472701C1 |
| METHOD AND THE INSTALLATION FOR PRODUCTION OF THE THERMOEXTENDED GRAPHITE | 2005 |
|
RU2294894C2 |
| METHOD FOR PREPARING OXIDIZED GRAPHITE | 2001 |
|
RU2206501C2 |
| METHOD OF PRODUCING THERMALLY EXPANDED GRAPHITE AND FOIL BASED THEREON | 2011 |
|
RU2480406C2 |
| METHOD OF PREPARING OXIDIZED GRAPHITE | 1996 |
|
RU2090498C1 |
| METHOD FOR PRODUCTION OF IRON-CONTAINING EXPANDED GRAPHITE | 1988 |
|
SU1633743A1 |
| METHOD TO PRODUCE COMPOSITE CARBON MATERIALS | 2008 |
|
RU2377223C1 |
| METHOD OF OBTAINING OXIDISED GRAPHITE | 2014 |
|
RU2561074C1 |
