Acrylonitrile butadiene styrene

ABS

Copolymer

Colorless to gray solid

Fixed

1.04 to 1.12 g · cm -3

-85 ° C ( butadiene ), 106-122 ° C ( styrene ), 133 to 142 ° C ( acrylonitrile )

1900-2700 MPa (DIN 53457 )

  • Insoluble in water, ethanol, mineral
  • Soluble in acetone, methyl ethyl ketone, dichloromethane

32-56 N · mm -2

0.18 W · m -1 · K-1

Attention

Acrylonitrile -butadiene -styrene copolymer ( abbreviation ABS ) is a synthetic terpolymer of the three different kinds of monomers of acrylonitrile, 1,3-butadiene and styrene and a part of the amorphous thermoplastic. The proportions can vary from 15-35 % acrylonitrile, 5-30 % butadiene and 40-60 % styrene.

Production

ABS is prepared industrially by graft, but it can also be done by blending ( mixing ) of the final polymers. The ABS produced by graft, a distinction the emulsion and in- mass method:

Properties

ABS is in raw form a colorless to gray solid. It can be bonded with methyl ethyl ketone ( MEK) and dichloromethane ( methylene chloride).

Other features are:

  • Elongation at break (DIN 53455 ): 15 to 30 %
  • Coefficient of linear expansion: 60-110 K-1 · 10-6
  • Spec. Heat capacity: 1.3 kJ · kg -1 · K-1
  • Continuous use temperature: max. 85 to 100 ° C.
  • Dielectric strength up to 120 kV · mm -1

Use

Household and Consumer Products dominate the global demand for acrylonitrile -butadiene - styrene. Significantly more than 50% of the ABS production in Western Europe is used by the automotive and electrical industries. ABS is well suited for coating with metals (galvanizing ) and polymers. This makes it possible for example to obtain a chromium-plated surface of a plastic part. Examples of the use of ABS are thermoformed parts from sheets and films, automotive and electronics parts, motorcycle helmets, toys (for example Lego blocks), housings for electrical appliances and computers, edge bands ( lipping ) in the furniture industry, consumer goods with increased demands on the impact strength, musical instruments (for example, clarinet and saxophone mouthpieces or ukulele cabinets, guitars bindings ) and the side walls of manufactured in sandwich construction skis and snowboards. In 3D printers ABS is also used.

Processing

ABS melts in a temperature range of 220-250 ° C ( high-temperature ABS blends or higher) and can be formed in the liquid state in the injection molding or by extrusion. As a special form of the latter method, ABS is also a common material for so-called 3D printer. Standard ABS soften 95-110 ° C (see Vicat softening point ).

Recycling

However, with proper separation ABS can be easily melted down and reused again. For sorting machine methods are available that can separate it from conventional waste mixtures to a purity of over 99%.

Standardize

  • DIN EN ISO 2580-1 Plastics - Acrylonitrile- butadiene -styrene ( ABS ) molding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 2580-1:2002 ). German version EN ISO 2580-1:2002.
  • DIN EN ISO 2580-2 Plastics - Acrylonitrile- butadiene -styrene ( ABS ) molding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 2580-2:2003 ). German version EN ISO 2580-2:2003.

Trade names

  • Cycolac ( Sabic )
  • Kumho ( Kumho )
  • LG- ABS (LG Chem)
  • Lustran / Novodur ( styrenics )
  • Magnum ( Styron )
  • Polylac ( ChiMei )
  • Polyman (A. Schulman )
  • Ronfalin ( Perrite )
  • Starex ( Samsung Cheil )
  • Saxalac ( SAX Polymers )
  • Sinkral ( Polimeri )
  • Terluran ( styrenics )
  • Toyolac ( Toray )
  • Rotec ABS ( Romira )

Similar plastics

  • Styrene- acrylonitrile (SAN)
  • Acrylic ester -styrene-acrylonitrile (ASA)

Swell

  • Health Harmful substance
  • Copolymer
  • Thermoplastic
CAS registry number Amorphous solid Thermoforming Styrolution Toray Industries Styrene-acrylonitrile resin
25281
de