In modern industry, the choice of material has a significant impact on the performance and range of applications of a product. In recent years, polyphenylene sulfide (PPS), a special engineering plastic, as an excellent alternative material, is leading the application revolution in various fields, making PPS the best alternative to metal materials.
Identified by the National Aeronautics and Space Administration (NASA) as one of the best flame retardant plastics due to its inherent flame retardancy, PPS material has been selected as a special material and has even been applied in the aerospace field, it has the following excellent properties:
High temperature resistance. The melting point of PPS can reach 275 291, the heat deflection temperature is 135, and it can be increased to 260 after being reinforced with glass fiber.
Radiation resistance. The PPS material has good weather resistance and radiation resistance, and is not affected by spiny strong ultraviolet and gamma rays as well as neutron radiation.
Chemical resistance. In addition to strong oxidizing acids such as concentrated sulfuric acid and nitric acid, PPS can also withstand the corrosion of other acids, alkalis and salts, in addition, it is insoluble in any organic solvent below 200, and its corrosion resistance is almost equivalent to that of polytetrafluoroethylene (PTFE).
Electrical insulation and dielectric properties.
At high temperatures and high humidity, PPS maintains a consistent volume resistivity with minimal change in dielectric constant with temperature and frequency. In addition, due to its low ionic impurity content, it can be immersed in a solder bath of 260 °C.
PPS injection conditions.
In the PPS injection molding process, the melt flow rate of PPS plastic is usually controlled at 20-150g min (between 343 and 0.).measured at 5 MPa). For the injection molding machine used in the process, the screw injection molding machine is generally selected.
You can refer to the specific molding conditions in the following datasheet: