Topic:
Glossary: V
Here you are going to find explications of important terms in plasma technology:
- vapour deposit
- In material sciences, besides doping, alloying, and surface finishing, the method of coating is of importance, when it comes to influencing the physical, electrical, and/or chemical properties of metals and non-metallic materials. The coating can be done e.g. by vapour deposit, or by spraying another material onto the part to be treated, or as well by immersing it into the corresponding (galvanic) bathes. Some methods require an additional heat treatment, like e.g. the nitrogenisation method, where the so-called tack coat grows out of the surface. The various coating methods belong, like those for the structuring and modification of surfaces, to the field of surface engineering or heat treatment.
- varnish adhesion
- see “varnishability”
- varnish wetting
- see “varnishability”
- varnishability
- Many varnishes don’t stick to certain substrates such as plastics, e.g., or the adhesion is not strong enough, therefore it is often necessary to pre-treat surfaces, since the polar groups required on the surface for adhesion have to be generated first.
- varnishing
- Application of polymers similar to sticking. The adhesion to the substrate is ensured by the vehicles. The higher the surface tension of the substrate, the sooner a film is generated.
- varnishing aluminium
- Aluminium is a light metal that is varnished because of optical reasons or, even more often, to be protected against corrosion. The varnishing’s durability depends directly on its adhesion on aluminium, which, in turn, can be enhanced extremely by a plasma pre-treatment.
- varnishing plastics
- Normally, varnish primers are applied to facilitate the use of common varnishes for metals. If a plasma treatment and customised vehicles are utilized, even single-layer lacquerings are possible.
- varnishing Teflon
- see „etching Teflon“
