Natural color PPS board, corrosion-resistant PPS board, radiation-resistant PPS board

：English name: , is a crystalline (crystallinity %%) highly rigid white powder polymer with high heat resistance (continuous use temperature reaches ℃), mechanical strength, rigidity, flame retardancy, chemical resistance, electrical properties, and dimensional stability. The resin has excellent wear resistance and creep resistance and excellent flame retardancy. It has self-extinguishing properties and reaches level 1. It still maintains good electrical properties under high temperature and high humidity. It has good fluidity and is easy to form. There are almost no shrinkage cavities during molding. It has good affinity with various inorganic fillers. It was developed to bridge the gap between standard thermoplastic materials (for example) and advanced engineering plastics. Also known as: polyphenylene sulfide Manufacturer: Taiwan Plate: Thickness (~㎜)*width㎜*length㎜ Rod: ￠~ ￠㎜*㎜ Advantages: High mechanical strength. Hard, outstanding low wear, impact resistance and chemical resistance are even better. Meets the standard of very good antioxidant and chemical resistance. And hydrolysis resistance, can be subjected to repeated steam boiling. Fire retardant self-extinguishing plastic. Even at very high service temperatures, it can still withstand high corrosion at ℃ and can be used for short periods of time up to ℃. At this temperature, its flexural strength is similar to B when the room is wet. It has low shrinkage, excellent size and heat resistance stability, and is undoubtedly suitable for physiological use. Disadvantages: Not wear-resistant. Low extensibility. May become brittle/break in contact with polar solvents and alcohol. If there is stress during processing, it is easy to break and cannot be processed with cooling oil.
Characteristics: The maximum allowable working temperature in the air is very high, it can work continuously at ℃, and can reach ℃ in a short time. It maintains high mechanical strength, stiffness and hardness in high temperature environments, and has excellent chemical corrosion resistance and hydrolysis resistance (not yet found) Solvent that can dissolve polyphenylene sulfide below ℃, extremely resistant to inorganic acids, bases and salts), excellent wear resistance and friction, very good dimensional stability, excellent resistance to high energy radiation, good UV resistance, flame retardant, and excellent electrical insulation.
General properties: It is a hard and brittle polymer with white appearance and high crystallinity. The pure relative density is , but it will increase after modification. The water absorption rate is very small, generally only about %. It has good flame retardancy, and its oxygen index is as high as % or more. Compared with other plastics, it is a highly flame retardant material among plastics (the pure oxygen index is %, %, %, %, %).
Mechanical properties: Pure mechanical properties are not high, especially the impact strength is relatively low. After being reinforced with glass fiber, the impact strength and tensile strength, tensile strength, flexural strength, and notched impact strength will be greatly improved. It has high rigidity and is rare among engineering plastics. The pure flexural modulus can be reached, and it can be reached after modification by inorganic filling, which is increased by as much as 10 times. And what is famous for its rigidity is only, only. It has excellent creep resistance and fatigue resistance, and has good creep resistance under load. The surface hardness is high, the Rockwell hardness is high, and the wear resistance is only 0.0%. By filling fluororesin and molybdenum disulfide and other lubricants, the wear resistance can be greatly improved, and the friction coefficient is ~. It also has certain self-lubricating properties. The mechanical properties are less sensitive to temperature.
Thermal properties: It has excellent thermal properties. Its melting point exceeds ℃, and its heat distortion temperature exceeds ℃. It can withstand ℃ for a short period of time and can be used for a long time at ℃. It degrades in air at ℃, and the inert gas still maintains % weight at ℃. The heat deformation temperature of specially modified varieties can reach above ℃. []
Electrical properties: Its electrical properties are very outstanding. Compared with other engineering plastics, its dielectric constant and dielectric loss tangent are relatively low, and it does not change over a large frequency temperature and temperature range. Large ones have good arc resistance, comparable to thermosetting plastics. It is often used in electrical insulation materials, and its dosage can account for about %.
Chemical resistance: One of its biggest features is good chemical resistance. Its chemical stability is second only to most acid esters, ketones, aldehydes, phenols, and aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated hydrocarbons, etc. It has not yet been found that it can be used in Solvents that dissolve polyphenylene sulfide below ℃ are extremely resistant to inorganic acids, bases and salts. Not resistant to chlorinated biphenyls and oxidizing acid oxidants, concentrated sulfuric acid, concentrated nitric acid, aqua regia, hydrogen peroxide and sodium hypochlorite.
It has good radiation resistance and reaches the highest level of radiation resistance. It is a new material unmatched by other engineering plastics. It is the only ideal excellent material for radiation resistance in the fields of electronic, electrical, mechanical, instrument, aerospace and military, especially atomic bombs and neutron bombs.
Good dimensional stability: the molding shrinkage is very low, less than %, the absorption rate is less than %, and the linear thermal expansion coefficient is also small. It still exhibits good dimensional stability under high temperature and high humidity conditions. Therefore, it is widely used in various aspects such as mechanical, chemical, instrumentation and aerospace ships.
Excellent electrical properties: Polyphenylene sulfide still has excellent electrical properties under high temperature, high humidity and high frequency conditions, and its volume resistivity