Most of the plastic light, chemical stability, will not rust;
good impact resistance;
With good transparency and wear resistance;
Good insulation, low thermal conductivity;
General molding, coloring good, low processing costs;
Most plastic heat resistance is poor, the thermal expansion rate is big, easy to burn;
Poor dimensional stability, easy deformation;
Most plastics are poor at low temperature, brittle at low temperature and easy to be aged.
Some plastics are easily soluble in solvents.
Plastic can be divided into thermosetting and thermoplastic two, the former can not be reshaped use, the latter could be repeated production. Thermal plasticity has a large physical elongation, generally in 50%~500%. June in different elongation rates are not completely linear.