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Hightech-coatings of the next generation...

Something more about nanotechnology...

Though the word „nano“ has become somewhat of a decoration in respect of advertising, it is in fact a synonym for the portal to a completely new world in which the dimensions of molecules and atoms play their parts. Nanotechnology is considered to be the key technology for the 21st century. Chemical nanotechnology concerns itself with the investigation, manufacture and uses of structures which are below 100 nanometres. The aim being to recognise new characteristics of objects measured on the nano scale level – to understand these (and there causes), and to transfer this knowledge then into technical developments and (new) applications.

The word “nano” has it’s roots in the greek “nanos”, meaning dwarf. It is the one thousand millionth part of one metre (0,000 000 001m). The relationship between a nanometre to a metre is the comparison of a hazelnut to the planet earth.

A characteristic property of nanotechnological products is the area of the surface in comparison to its volume. By the same volume these products have a far larger surface area than other normal structures. This is the reason for the immensive adhesive properties of nano products on the most diverse base materials.

Nano structures can have physical or chemical properties, which are not able to be observed in larger structured (macroscopic) objects. Chemical nanotechnology presents material in another form, having modified the molecular structure. New working materials are produced whose components can be nanoparticles. Through the variation in size, form or surface contents these nanoparticles may be transformed into new media, appropriate to the desired properties required for the product.

Nanoprotect laquers, as an example:
It is expected of laquers that they protect the material upon which they are applied against the effects of external forces, and that they combine well with the material to which they are applied. Furthermore dust and dirt and other foreign material should not stick to the surface. They should be easy to clean, resistant to abrasive forces and also to scratching – they should have an excellent gloss finish and long-life properties – and so on. Some of these properties can be achieved by products which are based on organic solutions (high density and flexibility). Other properties, for example resistance to external forces or anti-corrosive properties – “easy-to-clean” properties (resistance to dust and dirt and simply cleaned) are in products based upon non-organic solutions. Conventional paints (Acrylic, Polyurethane and Plastic) are based upon carbon combinations; that is to say on organic solutions. These are not as hard as coatings with non organic bases such as glass. But in reverse the non organic materials such as glass are harder, but they are also more brittle, more porous and less elastic than organic products.

Chemical nanotechnology solves this problem of conflict, from the point of view of the user, in that nano scale compositions composed of organic and non-organic basis materials are manufactured. The result being so-called hybrid coating materials (from hybrid, meaning a mixing of materials resulting in a “crossing” in the final product) which are appropriate to the specific requirements set out for the coating, following an adequate synthesis of organic and non-organic basic materials. Nanoprotect coating are therefore especially flexible in their uses: their properties live up to the expectations and wishes of the user far better than coating systems based only upon either only organic or only non-organic basis materials are able to.

Nanoprotect coatings are based upon silicium compositions (silane) together with catalysers and water. An intermediate product results and this is a thin-flowing and clear mixture, which is then heat- treated and condensed to a gel. During this "Sol-Gel" process, organic products are added, depending upon the specific requirements of the coating. As a basic rule, the higher the proportion of non-organic materials in the composition (networking), the harder (but more brittle) is the coating system. The higher the organic proportion, the more flexible (yet also less strong against abrasion) is the coating system. The art of composition and manufacture is therefore to produce a product which fulfils the specific requirements, by the selection of suitable components that match the optimal balance between organic and non-organic basic materials.

The application of Nanoprotect coatings may be done by all conventional means (rolling, painting, spraying). In comparison to conventional coatings, Nanoprotect coatings may be applied extremely thinly. Only a small quantity of the product is required to cover an area when compared to conventional products.

An example of the extreme stress which Nanoprotect products are subjected, and to which they fulfil their requirements is to be found in the oil industry:- delicate measuring instruments, which are located at the head of the borings, are projected up to 4000 metres into the earth’s surface. Owing to the protection by Nanoprotect accurate results have been obtained, without any problems, and the life of these delicate instruments has been extended greatly.