The polyethylene (more commonly known as polyethylene, less as polythene) is the most simple synthetic polymer and it’s the most common one among the plastic materials.
The Polystyrene standard differs in the fluidity, in the heat-deflection temperature and in the stiffness, including the antistatic applications for the injection molding, the extrusion and rolling.
The polypropylene (or polypropene abbreviated as PP) is a thermoplastic polymer which shows different versatility. The most interesting product from the commercial point of view is the one isotactic: it is a semi-crystalline polymer featured by a high breaking load, a low density, good thermal and abrasion resistance.
The chloride of polyvinyl also known as polyvinylchloride or with the corresponding PVC abbreviation is the most important polymer of the range obtained from vinyl monomers and it is one of the most used worldwide plastic material.