12.02.2014
ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. ABS polymers are resistant to aqueous acids, alkalies,concentrated hydrochloric and phosphoric acids, alcohols and animal, vegetable and mineral oils, but they are swollen by glacial acetic acid, carbon tetrachloride and aromatic hydrocarbons and are attacked by concentrated sulfuric and nitric acids. Even though ABS plastics are used largely for mechanical purposes, they also have electrical properties that are fairly constant over a wide range of frequencies. Musical instruments, automotive trim components, automotive bumper bars, medical devices for blood access. Enclosures for electrical and electronic assemblies, protective headgear, whitewater canoes, buffer edging for furniture and joinery panels, luggage and protective carrying cases, small kitchen appliances, and toys, including Lego bricks. Household and consumer goods are the major consumers of acrylonitrile butadiene styrene (ABS).


ISUN KIMYA petrochemical company is one of the suppliers of Iran’s petrochemical products to the domestic and international markets. The proportions can vary from 15 to 35% acrylonitrile, 5 to 30% butadiene and 40 to 60% styrene. These properties are little affected by temperature and atmospheric humidity in the acceptable operating range of temperatures. ABS plastic ground down to an average diameter of less than 1 micrometer is used as the colorant in some tattoo inks. The result is a long chain of polybutadiene criss-crossed with shorter chains of poly (styrene-co-acrylonitrile). Since pure ABS contains no halogens, its combustion does not typically produce any persistent organic pollutants, and the most toxic products of its combustion or pyrolysis are carbon monoxide and hydrogen cyanide.


The nitrile groups from neighboring chains, being polar, attract each other and bind the chains together, making ABS stronger than pure polystyrene. For the majority of applications, ABS can be used between ?20 and 80 °C as its mechanical properties vary with temperature. The properties are created by rubber toughening, where fine particles of elastomer are distributed throughout the rigid matrix.



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Comments Glass and plastic adhesive

  1. RUSLAN_666
    Kits run about $30-35 each, containing all the bottles med school at the time) had.
  2. bakinskiy_paren
    Useful for working with metals.