Cenosphere are a kind of spherical, hollow, low density and free flowing micro particles. The Cenosphere are produced as a by-product of the coal combustion at coal power plants. The size of these particles varies from 10 µm to 300 µm. It is strong and light weighted and has the capability to resist high temperature. There is a vacuum inside these Cenosphere particles that gives them a good thermal and insulation property. This is the only reason which makes the Cenosphere an ideal product for insulation as well as automotive applications. The automotive applications of Cenosphere include tyres, clutch facings, brake linings and also friction linings. The process of coal burning is performed at the thermal power plants to produce fly ash that generally contains ceramic substances. If the coal composition and the temperature of the boiler furnace is proper or suitable, then some of the particles of the ash produced undergo a rapid change in physical and chemical transformation to produce Cenosphere, otherwise, the particles of Cenosphere are irregular and random in their shape. As mentioned above, that the Cenosphere are light in weight, and therefore, it is primarily used as filler in oil, gas, plastics, buildings, aerospace, and factories, automotive and also in surface coating industries. Therefore, Cenosphere are described as the multifunctional filler that mixes well in binders and resins like thermosetting and thermoplastics. The advantages of buying Cenosphere from manufacturers are as follows:
- It will surely enhance the flow ability.
- The strength of the Cenosphere is good and is used in Bonding, internal structure such as asphalt, concretes, paints, ceramics.
- It also decreases the cost of raw materials.
- The spherical property of Cenosphere further helps in ball bearing effect for molding and trowel work.
- If the byproduct of coal is used to produce fly ash then the weight of end product also decreases.
Cenosphere have a property of low warm conductivity. They have exceptional mix of low particular gravity, high pressure, and controlled size, great warm and responsible protecting property. They are generally very hard and flexible, waterproof, light and insulative.