タイトルまたは説明

General information

Styrene with6h*-CH = CH2 refers to the aromatic hydrocarbons and is a derivative of benzene-vinyl benzol, in which one of the hydrogen atoms substituted by an unsaturated hydrocarbon radical CH = CH2. Styrene is chemical raw materials for the production of different polymers. His consumption of the world economy is truly grandiose scale: more than *2 million tons per year. In Russia annually processed **0 thousand tons.

Physical properties

Styrene is a liquid fly density of 0.*1 g/cm3, mingles in any relationship with alcohols, ketones, and esters, aliphatic, serouglerodom, aliciklicheskimi, aromatic and chlorinated hydrocarbons. Solubility in water and a variety of Gl Kol Jah limited. At a temperature of *5° c in water soluble not more than 0.*3% styrene.

Styrene easily polymerizes and sopolimerizuetsja with other substances under the action of peroxide initiators or without them at high temperatures.

 

  The application of the

Of course, a big part of the produced styrene goes to polystyrene polymer is very convenient for processing into products by the methods of molding under pressure and pressing, and has a number of useful properties: low cost, high chemical resistance to alkalis and acids, exceptional water resistance, high dielectric properties. From polystyrene produce a very wide range of products. Being good dielectric polystyrene is used for manufacturing parts for radio and electrical equipment, cable insulation. From it produce decorative finishing materials, various panels, cladding tiles products for domestic use: utensils, children's toys, haberdashery, packaging for foodstuffs. Foamed polystyrene is used as sound and thermal insulation material in the construction, refrigeration units, as well as in the manufacture of upholstered furniture. Polystyrene is also used for the lining of pipes in order to improve their chemical stability.