Most plastics are light, chemically stable, and will not rust;
Good impact resistance;
Has better transparency and wear resistance;
Good insulation and low thermal conductivity;
General molding, good coloring, low processing costs;
Most plastics have poor heat resistance, high thermal expansion rate and easy to burn.
Poor dimensional stability, easy deformation;
Most plastics have poor low-temperature resistance, become brittle at low temperature, and are prone to aging;
Some plastics are soluble in solvents. Plastics can be distinguished between thermoset and thermoplastic, the former can not be reshaped and used, the latter can be reproduced. Thermoplasticity has a large physical elongation, generally in 50% to 500%.
The force does not change in full linearly at different elongation rates. The different properties of plastics determine its use in industry, with the progress of technology, plastic modification has not stopped research. It is hoped that in the near future, plastics can be used more widely through modification, even replacing materials such as steel and no longer polluting the environment.