Monthly Archives: May 2016

Extrusion and granulation of PS granules

Extrusion, granulation The main extrusion granulation process is as follows: putting the foam into the extruder, then sequentially through the feed section, the compression section, metering section filter and squeezed out. In this process, the foam debris has gone from a solid to a semi-molten state to a molten state transition in the screw extruder…
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Applications and use of recycled PS pellets

Applications and use of recycled PS pellets After melting EPS foam, we can produce recycled GPPS, its impact strength is low, greatly limiting its use scope. It is possible to modify and reprocess the recycled PS pellets to expand its range of applications. The main process: in the PS foam recycling and granulation process, adding…
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Extruded polystyrene foam board

Extruded polystyrene foam board Extruded polystyrene foam (XPS) is a rigid foam with closed cell structure that polystyrene resin or a copolymer thereof as the main component, then heating and extrusion. Due to its unique excellent long-lasting insulation properties, unique anti-vapor permeability, high compressive strength, convenient construction and installation methods, so XPS board has been…
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The characteristics of GPPS plastic

GPPS plastic materials is made of general purpose grade polystyrene (GPPS) polystyrene (PS) and styrene monomer (SM), can be polymerized by a variety of synthetic methods, the current methods mainly contain bulk polymerization and suspension polymerization in industry. PS is a non-crystalline thermoplastic resin, can be divided into general purpose polystyrene (GPPS), impact polystyrene (HIPS)…
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