Specific gravity: 1.25- 1.35g/cm3 molding shrinkage: 0.5-0.7% Molding temperature: 290-350℃ Drying conditions:130-150℃ for 4 hours.
materials performance
1, polysulfone is an amber transparent solid material with high hardness, high impact strength, non-toxicity, good heat and cold resistance and aging resistance, and can be used for a long time at-100- 175 degrees. Resistant to corrosion of inorganic acids and alkali salts, but not resistant to aromatic hydrocarbons and halogenated hydrocarbons. Polyarylsulfone has high hardness, radiation resistance, good heat and cold resistance and self-interest, and can be used for a long time at-100- 175 degrees. 1, suitable for making heat-resistant parts, insulation parts, wear-resistant parts, instrument parts and medical equipment parts, and polyarylsulfone is suitable for making low-temperature working parts.
2. The reinforcement and modification of glass fiber can greatly improve the wear resistance of materials. 2. Polysulfone is often used to manufacture integrated circuit boards, coil formers, contactors, complete sets of frames, capacitor films and high-performance alkaline battery casings in electronic and electrical industries.
/use 3. Polysulfone can be made into modified products of polysulfone with ABS, polyimide, polyetheretherketone and fluoroplastics, mainly to improve its impact strength and elongation, solvent resistance, environmental resistance, processability and electroplating. Such as PSF/PBT, PSF/ABS, PSF+ mineral powder. 3. Polysulfone is used in household appliances, such as microwave oven equipment, coffee heaters, humidifiers, hair dryers, dryers, beverage and food dispensers. It can also replace non-ferrous metals for precision structural parts such as watches, copiers and cameras.
4. Polysulfone has passed the relevant specifications in American medicine and food field, and can replace stainless steel products. Polysulfone can be used as surgical tool tray, sprayer, fluid controller, heart valve, pacemaker, gas mask, denture and so on. Because it has the characteristics of steam resistance, hydrolysis resistance, non-toxicity, high temperature steam disinfection resistance, high transparency and good dimensional stability.
The formability is 1. Amorphous materials have high hygroscopicity, and the water absorption rate is 0.2%-0.4%. It must be fully dried before use to prevent moisture absorption again. Ensure that the water content is below 0. 1%.
5. Moldability is similar to that of PC, with poor thermal stability and decomposition at 360 degrees.
6. Poor fluidity and quick cooling, so high temperature and high pressure molding should be adopted. The mold should have sufficient strength and rigidity, cold well and short runner, and the gate size should be 1/2- 1/3 of the wall thickness of plastic parts.
7. In order to reduce the internal stress of injection molded products, the mold temperature should be controlled at 100- 140 degrees. After molding, it can be annealed in glycerin bath 160 degrees, 1-5 minutes; Or air bath 160 degrees, 1-4 hours. The annealing time depends on the size and wall thickness of the product.
8. Polysulfone is close to Newtonian body in molten state, similar to polycarbonate, and its fluidity is sensitive to temperature. In the range of 365,438+00-420 degrees, the fluidity increases by 65,438+0 times for every 30 degrees increase in temperature. Therefore, the processing fluidity is mainly improved by increasing the temperature in the molding process.