Because of its special structure, graphite has the following special properties:
1, High temperature resistance
The melting point of graphite is 3850±50℃. Even if it is burned by ultra-high temperature arc, the weight loss is small and the coefficient of thermal expansion is small. The strength of graphite increases with the increase of temperature. At 2000℃, the strength of graphite doubles.
2, Electrical and thermal conductivity
The conductivity of graphite is one hundred times higher than that of ordinary non-metallic ore. The thermal conductivity is higher than steel, iron, lead and other metal materials. The thermal conductivity decreases with increasing temperature, even at extremely high temperatures, graphite becomes an adiabatic. Graphite conducts electricity because each carbon atom in graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transport charge.
The lubrication performance of graphite depends on the size of the graphite flake. The larger the flake, the smaller the friction coefficient and the better the lubrication performance.
4, Chemical stability
Graphite has good chemical stability at room temperature and can resist acid, alkali and organic solvent corrosion.
Characteristics of graphite products:
1, graphite products have good adsorption.
The hollow structure of carbon makes carbon have good adsorption, so carbon is often used as adsorption data, for absorbing water, odor, etc.
2, Graphite products have good thermal conductivity, fast heat transfer, uniform heating and fuel saving.
Baking sheets and pans made of graphite heat quickly, and the food is heated evenly, cooked from the inside out, short heating time, not only taste pure, and can lock the original nutrition of food.
3, graphite products have chemical stability.
Graphite at room temperature has good chemical stability, not by any strong acid, strong base and organic solvent corrosion. Therefore, even if the long-term use of graphite products loss is very little, just scrub clean as new.