The features of graphite powder
are soft, dark gray; oily feel that can contaminate the paper. In the
isolated oxygen conditions, the melting point above 3000 ℃, is one of
the most resistant minerals. At room temperature, the chemical
properties of graphite powder are relatively stable, insoluble in water,
dilute acid, dilute alkali and organic solvents; different high
temperature reaction with oxygen to produce carbon dioxide or carbon
monoxide. It only oxidizes with fluorine and simple carbon in the
halogen. Graphite powder is easier to acid oxidation. Besides, it can
also react with many metals to form metal carbide, which can be smelted
at high temperature.
Graphite powder is the necessary raw materials
for industrial production and application. The application of graphite
powder has begun to move to the more high-end, which has launched a
variety of applications, such as in electronics, new energy, high-end
manufacturing, medical and other fields. LED lamps is the environmental
protection and energy saving lamps recent years that LED lights cooling
is the need to solve the problem of graphite powder.
LED lamps and
lanterns of the poor heat can lead to damage to power, light failure
accelerated, shortened life and other issues, LED lighting system
performance is always the top priority, metal materials in the
application of LED cooling difficult to process, energy consumption,
density is too large, conductive, easy to deformation and difficult to
recover waste and many other issues, and graphite powder material will
not be such a problem, graphite powder plasticity is good, easy
processing, and has excellent high temperature, thermal conductivity and
other properties. Graphite powder can be processed into the graphite
heat sink, the heat emitted by the lamp will be absorbed through the
graphite heat sink, and even to the surrounding heat, graphite powder
and plastic can also be made into a heat sink, cooling the cooling cup
and cooling shell and so on.
There are many cooling performance in
the application of LED lights, including LED chip packaging components,
LED optical lens, light scattering components, efficient cooling
components, light reflection and light diffusion board. Graphite powder
of high-end products plays an important role in the solar transparent
electrode, thermal materials and touch screen and other fields.
Related reading:graphite nanoparticles graphite nano powders
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