Description of high impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll
High impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll is the fourth largest general-purpose thermoplastic variety. Polystyrene is an amorphous polymer, which is colorless, transparent, non-toxic and tasteless, shiny and easy to color, and emits a crisp metal-like sound when it drops to the ground, with a density of 1.054g / cm3. Its plastic raw materials are colorless and transparent granular or bead-like, flammable, and have black smoke and special odor when burning.High impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll has excellent electrical insulation (especially high-frequency insulation), comparable to fused quartz; it has good transparency, high light transmittance, and optical properties second only to plexiglass; it has excellent coloring ability , high impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll can be dyed into a variety of bright colors; it has a certain chemical stability, resistant to alkali, sulfuric acid, phosphoric acid, 10% to 30% hydrochloric acid, dilute acetic acid and other organic acids, but not resistant to the role of nitric acid and oxidantshigh impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll is not resistant to organic solvents such as benzene, ketones and lipids; it has poor heat resistance, and the heat distortion temperature is generally 78-98 degrees Celsius, which can only be used at low temperatures; its mechanical strength is average, and its texture is hard and brittle , Plastic parts are easy to crack due to internal stress, which limits its application in engineering. Based on the above shortcomings, there are modified polystyrenes and polystyrene-based copolymers, including ABS.MBS.AAS.ACS.AS, etc., which improve the heat resistance of polystyrene to a certain extent And reduce brittleness, thereby greatly expanding the use of polystyrene.
Specification of high impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll
High impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll can be used in the manufacture of instrument housings, lampshades, chemical instrument parts, and transparent models in the industry; in electrical terms, it can be used in the manufacture of good insulation materials, junction boxes, and battery boxes; in the field of daily necessities, because polystyrene has Good hygienic performance, widely used in the manufacture of premium packaging materials and various containers, toys, etc .; foamed polystyrene plastics are used in anti-vibration, sound insulation materials and refrigerator linings.
Formability OF high impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll
1: Good forming and processing performance, it can be processed by injection, extrusion, vacuum and molding.
2: Polystyrene is brittle and easy to crack, so it is easy to crack. Therefore, the mold release slope of the molded plastic part should be more than 2 degrees, and the ejection is uniform to prevent cracking due to poor mold release.
3: There should be no inserts (pre-heating if there are inserts), notches and sharp corners in the plastic parts, the sides should be connected smoothly, and the thickness of the plastic parts should be uniform.
4: Due to good fluidity, the value of overfill is about 0.03mm. Pay attention to the mold gap to prevent the formation of flash.
5: The point design is mostly used in the mold design to prevent the plastic parts from being damaged when the gate is removed. A hot runner system can also be used.
6 High impact PLASTIC ROLL, HIPS matte plastic roll, polystyrene hips plastic roll is suitable to use high material temperature, high mold temperature, low injection pressure and prolong the injection time, which will help reduce internal stress and prevent shrinkage hole deformation. If the material temperature is low and the mold release agent is too much, the transparency of the plastic is poor, but the silver wire is easy to appear if the material temperature is too high
