Chemical resistant PPS basic innovative plastic 1184G-20 - machinery industry - glass fiber PPS has good creep resistance and high hardness under load; high wear resistance, its wear capacity at 1000 rpm is only 0.04g, and will be further improved after F4 and molybdenum oxide are filled; PPS also has certain self-moistening properties. The mechanical properties of PPS are less sensitive to temperature (3) Thermal properties: PPS has excellent thermal properties, can withstand 260 ℃ in the short term, and can be used for a long time at 200 ~ 240 ℃; its heat resistance is comparable to PI, second only to F4 plastics, which is rare in thermosetting plastics. The application of PPS is centered on its heat resistance, taking into account its anti-friction self-lubrication, chemical stability, dimensional stability, flame retardancy and electrical insulation. In the chemical industry PPS can be used as reaction tanks, pipes, valves, chemical pumps, etc. for synthesizing, conveying and storing materials. In the mechanical center PPS can make impellers, blades, gears, eccentric wheels, bearings, clutches and parts; the main use of pps is still in the field of electronic and electrical appliances, such as transformer frames, high-frequency coil frames, plugs, sockets, wiring racks, contactors Drum drums and various parts, etc. 1. Excellent electrical insulation (especially high frequency insulation), hard and brittle white, metal sound falling on the ground, second only to plexiglass, water resistance and good chemical stability. It has excellent flame retardancy and is a non-combustible plastic. 2. Average strength, good rigidity, but brittle, prone to stress brittleness, intolerance to benzene. Gasoline and other organic solvents. The long-term use temperature can reach 260 degrees, and it remains stable in air or nitrogen at 400 degrees. By adding glass fiber or other reinforcing materials, the impact strength can be greatly improved, heat resistance and other mechanical properties are also improved. The density is increased to 1.6-1.9, and the molding shrinkage rate is less than 0.15-0.25%. It is suitable for making heat-resistant parts, insulation parts, chemical instruments, optical instruments, etc. P is a milky white translucent to opaque, semi-crystalline thermoplastic polyester. It has high heat resistance, can work for a long time at 140 ℃, toughness, fatigue resistance, self-lubricating, and low coefficient of friction. Not resistant to strong acids and alkalis, resistant to organic solvents, combustible, decomposed at high temperatures. P resin is mostly processed into blends. After modification with various additives, it can be mixed with other resins to obtain good comprehensive properties such as heat resistance, flame retardancy, electrical insulation, etc., and good processing properties. The moisture absorption is weak. The tension strength of the non-enhanced P is 50 MPa, and the glass additive type P has a tensile strength of 170 MPa. Excessive glass additives will cause the material to become brittle. P's; crystallization is rapid, which will cause bending deformation due to uneven cooling. For materials with glass additives, the shrinkage rate in the direction of the process can be reduced, but the shrinkage rate in the vertical direction of the process is basically no different from that of ordinary materials. Generally, the shrinkage rate of materials is between 1.5% and 2.8%. Materials containing 30% glass additives shrink between 0.3% and 1.6%. The melting point (225% C) and high temperature deformation temperature are lower than PET materials. The softening temperature of Vika is about 170C. Glass conversion temperature (glass Trasitio temperature) is between 22C and 43C. Due to the high crystallization rate of P, its viscosity is very low, and the cycle time of plastic parts processing is generally low (reinforced, modified P). It is mainly used in automobiles, electronics, industrial machinery and polymer alloys, and blending industries. Such as distributors in automobiles, body parts, igniter coil skeletons, insulation covers, exhaust system parts, motorcycle igniters, deflection coils of televisions, video tubes and potentiometer brackets, accompaniment output transformer frames, adapter frames, switch connectors, electric fans, refrigerators, washing machine motor end covers, bushings. There are also transportation machinery parts, sewing machine and textile machinery parts, clock cases, mirrors, iron covers, mercury lampshades, baking oven parts, power tool parts, sets, etc.