[Chemical Knowledge]：What is Styrene?

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The question of "what is styrene" is actually very simple. Styrene, also known as ethylbenzene, is a colorless liquid with a chemical formula of C8H8, a molecular weight of 104.15, and a monoalkenyl aromatic hydrocarbon. Styrene is one of the important raw materials in the production of modern chemical industry, widely used in plastics, rubber, synthetic fibers, coatings, adhesives and other manufacturing industries.

how is styrene manufactured? In general, styrene is separated by the distillation of heavy oil. Cheaper raw materials such as petroleum and coal tar are usually used. Under high temperature conditions, the raw material will decompose styrene and other aromatic hydrocarbons, and then through heating and compression and other mechanical operations to separate the styrene out.

of styrene is not only widely used in the chemical industry, but also in daily life. Styrene can make plastic, synthetic fiber and rubber materials, such as ABS plastic, polystyrene foam, polystyrene, man-made fiber, SBS rubber, EPS foam, etc. are styrene products. In addition, styrene can also be used in cosmetics, food, medicine and other fields, such as lipstick, chewing gum, vitamins, painkillers and so on.

styrene can play a very good role in chemical reactivity, because of the presence of double bonds in the styrene molecule. In the reaction of styrene, various reactions such as addition, substitution and radical reaction can occur. A variety of styrene derivatives and polymers are widely used. Such as acrylonitrile-styrene copolymer (AS resin) is high temperature resistance, acid and alkali resistance, decorative materials and other fields, has a wide range of applications. Polystyrene is a kind of plastic widely used in home, furniture, electronic products and other fields. It has long service life, high temperature resistance, drop resistance, environmental protection, good physical properties, and is a very good material.

However, the harm to human health and the environment caused by styrene in the process of manufacturing, transportation and use cannot be ignored. During the production and use of styrene, styrene monomer and different degrees of polymers, residual monomers and gases will escape, causing pollution to the air and the environment, and also triggering chemical reactions, such as photo-oxidation and cross-linking reactions, etc. The harmful substances such as carbon monoxide and volatile organic compounds produced cause major harm to the atmospheric environment and human health. Therefore, in the process of manufacturing and using styrene, we must pay attention to environmental awareness to avoid harm to the environment and human body.

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