GPPS
General grade polystyrene is a thermoplastic resin, colorless, odorless, tasteless and shiny, transparent beads or
General grade polystyrene is a thermoplastic resin, colorless, odorless, tasteless and shiny, transparent beads or granular solid. Density 1.04 ~ 1.09, transparency 88% ~ 92%, refractive index 1.59 ~ 1.60. Under the action of stress, birefringence occurs, which is called stress-optical effect. The melting temperature of the product is 150 ~ 180ºC, the thermal decomposition temperature is 300ºC, the thermal deformation temperature is 70 ~ 100ºC, and the long-term use temperature is 60 ~ 80ºC. At 5 ~ 6ºC lower than the thermal deformation temperature, the stress can be eliminated and the thermal deformation temperature can be increased after annealing treatment. If a little α -methyl styrene is added in the production process, the heat resistance grade of universal polystyrene can be improved.
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Tensile strength break6mm/min 3.2mm |
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Elongation Break 6mm/min3.2mm |
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Flexural modulus 2.8mm/min |
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Vicat 50ºC/hr 3.2mm |
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Application:
1. Food packaging.
2. Electrical industrial, instrumentation, communications equipment industry and other various instruments has been widely used as a shell, lamp, optical parts, equipment parts, transparent windows mirror, transparent model, acid, chemical storage tank,acid tank transport, telecommunications components, high frequency capacitors, high frequency insulation pads,brackets, inserts and frozen insulating materials.
3. All kinds of daily necessities,such as Plastic Cutlery, Toys.
