GreenEcoNet

Connecting SMEs for a green economy

New Advanced Coating Materials through Metalling Nanoparticles

Andreas Bauer's picture

Traditional coating systems for mechanical component parts are increasingly reaching the limits of their load capacity. Thus, new materials and alloys are important in order to optimize the function and lifespan of layered coatings. The Stuttgart company IPT International Plating Technologies GmbH, along with other partners in industry and research, have succeeded in significantly improving the outer surface qualities of new coating materials, through the controlled introduction of metallic nanoparticles into electroplated metallic coatings.

Nanoparticles improve layered coatings
Traditional coating systems for mechanical component parts are increasingly reaching the limits of their load capacity. Thus, new materials and alloys are important in order to optimize the function and lifespan of layered coatings. The Stuttgart company IPT International Plating Technologies GmbH, along with other partners in industry and research, have succeeded in significantly improving the outer surface qualities of new coating materials, through the controlled introduction of metallic nanoparticles into electroplated metallic coatings.

High-grade and eco-friendly
As a “transport system” for the metallic ions, so-called Core-Shell systems function on the basis of dendritic polymers, with which different metal matrix systems can be manufactured. Nano-dispersion layers which are produced in this way have strong adhesive strength, are free of cracks and glossy, and boast a homogeneous nanoparticle incorporation.

The advantages of the process in a nutshell:
• Significant improvement of the tribological properties of the metal surface
• The whole dispersion layer works as a wear-resistant coating
• Reduction of precious metal needs
• Use of cyanide-free complexing agents
• Saving of a process step through deposition in just one electrolyte
This coating technology, the first of its kind, thus offers an economical and environmentally-friendly basis for a range of applications, for example in the automobile and electrical industries.

Nanoparticle use in Electroless Nickel Plating
One project currently under way aims at expanding the applicability of this concept to electricity-free chemical nickel plating, as well. The focus is on the controlled embedding of solid lubricants such as hexagonal boron nitride (hBN), combined with silver nanoparticles, in a chemical-nickel layer. With its application in friction bearings, the new coating is designed to reduce the friction coefficient and make motors more fuel-efficient. Early tests have already shown very promising results.

Project Implementation:
IPT International Plating Technologies GmbH
Vor dem Lauch 10, 70567 Stuttgart
Telefon 0711|900710, info@ipt-plating.com, www.ipt-plating.com

Contact:

PIUS-Internet-Portal
c/o Effizienz-Agentur NRW
Henning H. Sittel
Tel. 0203 378 79 51
E-Mail: info@pius-info.de

Green Eco Net
c/o Ecologic-Institut gGmbH
Dr. Martin Hirschnitz-Garbers
Tel. 030 86880 272
E-Mail: martin.hirschnitz-garbers@ecologic.eu

Source in german: Deutsche Bundesstiftung Umwelt