Polystyrene
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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. By weight, it is
Expanded polystyrene packaging
A polystyrene yogurt container
Bottom of a vacuum-formed cup; fine details such as the glass and fork food contact materials symbol and the resin identification code symbol are easily molded
Polystyrene is flammable, and releases large amounts of black smoke upon burning.
Plastic
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Plastics are a wide range of synthetic or semisynthetic materials composed primarily of polymers. Their defining characteristic, plasticity, allows them to be molded, extruded, or pressed into a diver
Polystyrene
…cheap resin and a fairly poor barrier to oxygen and water vapor, with a relatively low melting point. Polystyrene is one of the most widely used plastics, with the scale of its production being several million tonnes per year. Polystyrene is naturally transparent to visible light, but can be colored with…
Household items made of various types of plastics
The plastic handle of a kitchen utensil, deformed by heat. This behavior, in which the plastic resolidifies in a new shape after melting, is characteristic of thermoplastics.
A Slovnaft facility in Bratislava, Slovakia
A SOCAR Polymer polypropylene plant in Sumgayit, Azerbaijan