PP and PS plastic boxes of that material are better for electronic packaging? Which kind of hardness is good? Is PVC soft?
PS electrical insulation (especially high-frequency insulation) excellent, colorless and transparent, light transmittance after organic glass, color of water resistance, good chemical stability and strength. In general, but the crisp, easy to produce stress cracking, no resistance to benzene. Gasoline and other organic solvents. Suitable for production of transparent insulation decorative pieces and chemical. Instrument. Optical instruments and other parts.
PP cheap, light, good processability and wide use, the development of catalyst and new technology to further promote the expansion of the application fields, some people say: "as long as there is a product of the plastic material is replaced, so this product has the potential use of polypropylene". Main applications: woven bags, waterproof cloth, durable consumer goods, such as automobiles, household appliances and carpets.
The advantages of PP rubber boxSmall density, strength, stiffness, hardness, heat resistance are better than low-pressure polyethylene, can be used at about 100 degrees. Good electrical insulation and high not affected by humidity, but the low temperature brittle, abrasion resistance and aging. Suitable for making general mechanical parts, corrosion resistant parts and insulation parts, the object is relatively hard, at the bottom of a blue fire burning, at the top of a fire, a slight fragrance.
