The difference between the performance of PS material and ABS material

PS plastic (polystyrene), material properties: excellent electrical insulation (especially high-frequency insulation), colorless and transparent, light transmittance second only to plexiglass, coloring water resistance, good chemical stability. The general strength, but the crisp, easy to produce stress embrittlement, not resistant to benzene. Gasoline and other organic solvents. Suitable for making insulating transparent parts. Decorations and chemical equipment. Optical instruments and Other Parts. Molding performance: 1. Amorphous materials, moisture absorption, do not have to be fully dry, not easy to decompose, but the coefficient of thermal expansion is large, easy to produce internal stress. Good fluidity, can be screw or plunger injection molding. 2. It is advisable to use high material temperature, high mold temperature, low injection pressure, and prolong the injection time to reduce internal stress and prevent shrinkage. Deformation. 3. Various forms of gate can be used, and the gate is connected to the arc of the plastic parts so as not to damage the plastic parts when the gates are removed. Demoulding slope is large and the ejection is even. The thickness of the plastic parts is even and it is better not to insert the inserts. If any inserts should be warmed up.

ABS (Acrylonitrile Butadiene Styrene) is a light yellow granular or beaded opaque resin that is non-toxic, odorless, and has low water absorption. Has excellent physical and mechanical properties, excellent low temperature impact resistance, excellent electrical properties, abrasion resistance, dimensional stability, chemical resistance, dyeing. Easy to process and shape. ABS water, inorganic salts, alkalis and acids, insoluble in most alcohols and hydrocarbon solvents, soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons. The disadvantages of ABS are flammability, low heat distortion temperature, and poor weather resistance. Combustion characteristics: flammable; continue to burn from the fire; flame yellow, thick black smoke; softening, foaming; Solubility: Soluble solvent: Dichloromethane; Insoluble solvent: Alcohols, aliphatic hydrocarbons, water. Applications: automotive, mechanical equipment, electronic appliances, etc.