Plastic raw materials can also be divided into general plastics, engineering plastics and special plastics according to the scope of application.
Common plastics are: PP, PVC, PE, PS, etc.
Common engineering plastics are: ABS, PC, PMMA, POM, PA6, PA66, PET, PBT, SAN, etc.
Special plastics are common: PPS, PEI, etc.
Engineering plastics particles are often modified by some general plastics. Such as changing some internal molecular structure, adding other components, such as glass fiber, etc.
Engineering plastics are industrial plastics used for industrial parts or shell materials, and their strength, impact resistance, heat resistance, hardness and ageing resistance are excellent.
Japan's industry is defined as "high performance plastics which can be used as structural and mechanical parts, with heat resistance above 100 degrees Celsius, mainly used in industry".
Its performance includes:
Thermal properties: high glass transfer temperature (Tg) and melting point (Tm), high thermal deformation temperature (HDT), high long-term service temperature (UL-746B), wide range of service temperature and low thermal expansion coefficient.
B. Mechanical properties: high strength, high mechanical modulus, low latency, wear resistance and fatigue resistance.
C, other: chemical resistance, excellent resistance to electricity, fire resistance, weather resistance, dimensional stability.