Following are going to introduce three applications of graphite materials.

First, Using as lubricant

Why is graphite used as a lubricant?

Graphite is a mineral made of loosely bonded sheets of carbon atoms, giving it a slippery texture that makes it a very effective lubricant. This slippery quality also makes graphite a good material for pencil lead because it easily sloughs off onto paper.

Second, fire-proof materials –fire seal

expandable graphite has many properties such as expansibility, high-temperature resistance, and thermal insulation, It has become an excellent sealing material and is widely used. At present, there are mainly two forms: the first one is to mix expandable graphite with rubber material, inorganic flame retardant (aluminum hydroxide), accelerator, vulcanizing agent, reinforcing agent, etc. to make various specifications of fireseal. Mainly used for fire doors and fire glass windows etc. This kind of fireseal  has the function of blocking smoke flow. The other is to use glass fiber as the carrier and some adhesive to bond the expandable graphite on the carrier, which is mainly used in the manufacture of fire doors.

Third, Writing and art applications. 

Graphite has been used as writing material since the sixteenth century. 

An integral tool from the time we’re toddlers, graphite is most known as the active ingredient in lead pencils.

Graphite is considered an archaic industrial mineral since it has been mined for its useful properties (lubrication, pigmentation, writing, etc.) for thousands of years. The word graphite is derived from the Greek word graphein, which means, to write. A version of the word graphein is still retained by carbon scientists as the word graphene, which is the term used to describe a single layer of a graphite crystal, the graphene layer. The documented use of graphite as a commercial writing material is traced to the area around Keswick in Cumberland Great Britain where a high quality deposit of writing graphite was discovered in the middle of the 1500s