Polystyrene is one of the widely used plastics, amounting to several billion kilograms annually. Polystyrene is used in a variety of applications which includes packaging, like peanuts for cushioning fragile items, and for insulation. Polystyrene is solid in room temperature but flows when heat is applied. This property allows the said plastic to be cast into molds and made into various products including single-use utensils, serving trays, and food and drink containers. Molded polystyrene are … Read entire article »