Recycled polystyrene can also be used to do other products

Polystyrene, referred to as PS, which is a thermoplastic material, at room temperature for the glassy solid, if the heating is higher than its glass transition temperature will show a dynamic state, when the temperature will once again form a solid. Pure polystyrene solids are colorless, hard plastic and can be mixed with a variety of dyes to produce different colors. Solid polystyrene is widely used, such as disposable tableware, plastic models, CD and DVD housings. Expanded polystyrene is almost ubiquitous in everyday life, like packaging or beverage cups.

Polystyrene was first produced in Germany in 1930, and then in 1937 the United States began commercial production, the real development is the Second World War, that is, after 1946. At present, polystyrene in the world of thermoplastic resin, the output ranked fourth, after the polyethylene, polyvinyl chloride and polypropylene. At present, the world's styrene series of resin varieties have 30 to 40 species, nearly 100 brands, more than 400 kinds of grades, the output of 11 million tons / year, while polystyrene accounted for about 65%.

Polystyrene can be recycled and can be seen on recycled plastic 6, but polystyrene is not easy to recover because of its low weight and low recycling value, people generally do not cooperate with the recycling program, but in Germany require the manufacturer to bear The responsibility for recycling and disposal of any packaging materials.

On the other hand, the industrial polystyrene recycling has made great progress, many different methods have been developed. However, most polystyrene products are not recovered at present, due to the lack of adequate recycling facilities and collection methods. If polystyrene is properly burned at high temperatures, it will only produce water, carbon dioxide and some volatile compounds and charcoal, and the released heat can be used as a power for steam and power generation. If the combustion does not have enough oxygen or lower temperature, will produce polycyclic aromatic hydrocarbons, carbon monoxide and styrene monomer.