What is Polyester?

Polyesters are one of the most economically important classes of polymers, driven especially by PET, which is counted among the commodity plastics; in 2000 around 30 million tons were produced worldwide.

The basic building blocks of PET are ethylene glycol and terephthalic acid, which are combined to form a polymer chain. The resulting spaghetti-like strands of PET are extruded, quickly cooled, and cut into small pellets. The resin pellets are then heated to a molten liquid that can be easily extruded or molded into items of practically any shape.

The advantages of Polyester

A number of benefits come from the use of PET plastics. Perhaps one of the most important characteristics of it is its intrinsic viscosity. This allows the material to be processed using a common molding machine and then dried.

· It has an excellent level of wear resistance compared to other plastics.

· It has a high flexural modulus (making it flexible.)

· It has a superior level of stability making it versatile and strong.

· It has a low coefficient of friction making it useful in various applications in which other plastics are not.