Polystyrene – PS
Polystyrene is a synthetic polymer made from monomers of the aromatic hydrocarbon styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and brittle. It is an inexpensive resin per unit weight. It is a poor barrier to oxygen and water vapor and has a relatively low melting point.
General purpose polystyrene (GPPS) is one of the most widely used kinds of plastic that has excellent transparency, high stiffness and excellent moldability (injection, extrusion, foam molding, etc.).
Benefits
Relatively low-cost material used in production of disposable consumer products, colored easily to produce solid or transparent tints and not hygroscopic- so there is no need to dry.
Applications
Injection Molding | Case for lunch box, confectionary tray,CD cases |
Thermoforming | Disposable items |
HIPS is amorphous thermoplastic material, an opaque or translucent rather than transparent polymer, used in lower heat applications
Benefits
Superior impact strength, improved resistance to stress cracking and to crazing caused by organic liquids, oils & fats.
Applications
Extrusion | Thick sheet for light panel |
Injection Molding | Cutlery, laptop casings, CD/DVC covers, pens lid , hangers |
Thermoforming | Food packaging trays |
A rigid, closed cell, thermoplastic foam material produced from solid beads of polystyrene, which is polymerised from styrene monomer and contains an expansion gas (pentane) dissolved within the polystyrene bead. EPS is ideal for the packaging and construction industries due to its light weight, strong and excellent thermal insulation properties.
Benefits
Highly resistant to biological corrosion, minimizes the effect of moisture and water vapour, and good shock absorption.
Applications
Electronic Goods | Cushioning & packaging |
Thermal Insulation | Thermal boards in building constructions and packaging products |