General purpose polystyrene properties

1 GPPS description:
GPPS is low water absorption, in a wet environment can still maintain its mechanical properties and dimensional stability. GPPS is featured by excellent electrical properties, volume resistivity and high surface resistivity, is independent of temperature, humidity changes, are not subject to corona discharges. INTCO provides excellent quality of recycled GPPS.

polystyrene granules
2 GPPS properties:
GPPS is solubled in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, but only swell in acetone. Resistant to the action of certain mineral oils, acids, alkalis, salts, lower alcohols and their aqueous solutions.
Low water absorption, GPPS can still maintain its mechanical properties and dimensional stability in wet conditions.
Radiation resistance is also very good.
Excellent electrical properties, volume resistivity and surface resistivity are high, and not affected by temperature and humidity changes, and is not affected by corona discharge.
3 GPPS applications:
EPS foam is a lightweight, rigid, plastic foam insulation material can be produced from solid polystyrene granules. Expansion is achieved by virtue of small amounts of pentane gas dissolved into the polystyrene base material in production.
The air expands under the action of heat, applied as steam, to form perfectly closed cells of EPS. These structure cells occupy approximately 40 times the volume of the original polystyrene pellets. The polystyrene granules are then molded into appropriate forms suited to their application. Products made from extruded foam polystyrene are nearly ubiquitous, for example packing materials, PS frames, XPS insulation board, and foam drink cups, food trays.

polystyrene board
GPPS is a homopolymer for injection molding and hot melt application with heat stability
The product is used for food grade, lighting and medical level. Always making harmaceutical packaging, Cosmetic packaging, Lighting fixture, Insulation, Electric packaging.

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