HIPS
Plastics
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Overview

HIPS (High Impact Polystyrene) is a water-white thermoplastic produced by the polymerization of styrene (vinyl benzene). The electrical insulating properties of polystyrene are outstandingly good and the material is relatively unaffected by moisture.

HIPS is made by dissolving the rubber in a styrene monomer and then polymerizing the styrene in the usual way. Material properties of HIPS strongly depend on the content and particle size of rubber, bonding strength between rubber and matrix, and homogeneity. Generally, the rubber content of impact polystyrene is around 3% and the size of rubber particles is 1-5%. HIPS retains higher rubber content from 5 to 15% to increase impact strength, thus making it useful for products requiring such properties. In addition, due to high heat resistance and fluidity, products can be made by various processing methods such as injection molding, extrusion, vacuum forming and blow molding.
Characteristics
  • Various grades
  • Excellent melt flow characteristics
  • Thermal stability
  • Dimensional stability
  • Good appearance
  • Good weather resistance
Grade and Application
Grade
Application
High flow, High impact strength
Toys, Commodities, Cosmetic containers, Cookware, Furniture, Medical equipment, Light aprons, etc.
Excellent flow
Lighting equipment, Cassette tapes, Fan blades, Medical equipment, School stationery, Optical parts, Vegetable storage bins for refrigerators, Dust covers, etc.
Heat resistance, High impact strength Disposable cups, Packing containers, Lighting equipment, Home appliances, Commodities, Large bottles, etc.
Cold-proof for extrusion
Refrigerator inner/door liners, Disposable cups, Trays, Tables watches, Washers, Commodities, etc.
High flow, Good moldability
Yogurt containers, Large bottles
High gloss, High impact resistance
Refrigerator parts, Products requiring high gloss
Flame-retadent
PBDE(Flammability UL94)
TV, VCR and monitor housings
Flame-retadent
Non-PBDE(Flammability UL94)
TV, VCR and monitor housings, Office appliance, Wide TV housings, Complicated structure products
Flame-retadent
Non-Halogen(BS 415)
TV, VCR housing

   
 

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