Plastic coating
Plastic coating is a term that is commonly used in technology, but is still ambiguous. This can be understood as the coating of plastics (e.g. plastic metallization ) or the coating of other materials (e.g. copper cables ) with plastics.
Metallization of plastics
Technical procedures
The application of the finest metal layers on plastic surfaces is becoming increasingly important because “surface protection and visual attractiveness are improved in equal measure”.
- Dry processes: high vacuum evaporation, cathode sputtering, gas plating as well as metal and conductive lacquer spraying. High vacuum technology only works when the plastic does not gas. In gas plating, in contrast to the other methods, the metal is formed from volatile, thermally easily decomposable compounds (e.g. nickel tetracarbonyl ) in situ by a chemical reaction and the metal mirror (possibly also on a previously pickled plastic surface, e.g. B. acrylonitrile-butadiene-styrene graft copolymer) then deposited on the plastic.
- Wet process.
Coating of materials with plastics
The coating of all kinds of materials with plastics is technically important. One example is the cable sheathing of power cables or the coating of cutlery baskets in dishwashers.
Technical procedures
Theoretically, lacquers are also plastic-like coatings. A limit can be drawn as to whether a reaction or crosslinking of the coating takes place (automotive clearcoat) or whether a plastic only melts and solidifies on the surface (vortex sintering with thermoplastics), but the transitions are fluid. As a rule, plastic coatings have a significantly higher layer thickness than conventional paintwork.
Individual evidence
- ↑ a b M. D. Lechner, K. Gehrke and EH Nordmeier: Makromolekulare Chemie , 4th edition, Birkhäuser Verlag, 2010, p. 465, ISBN 978-3-7643-8890-4 .
- ↑ a b c d e Otto-Albrecht Neumüller (editor): Römpps Chemie Lexikon , Frank'sche Verlagshandlung, Stuttgart, 1983, 8th edition, p. 2271, ISBN 3-440-04513-7 .
- ^ Karlheinz Biederbick: Kunststoffe , 4th edition, Vogel-Verlag, Würzburg, 1977, p. 23, ISBN 3-8023-0010-6 .
