NanoProcess Technologies are methods and experimental processes that are important in manufacture, processing and production in the field of nanotechnology. There is, precisely in this area, the special need for development and optimization since these technologies e.g. dispersion technology, are one of the keys to the economic utilization of the high potential of nanotechnology.

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NanoCoatings - modification of interfaces by nanotechnology

Cotec GmbH
Frankenstr. 19
D - 63791 Karlstein
Phone: +49 6188 994 6253
Fax: +49 6188 994 6262
Email | www.cotec-gmbh.com

Efficient and reliable processing methods are essential for ultrathin and functional interface coatings. Vacuum-based technologies such as physical vapor deposition and chemical vapor deposition (PVD/CVD-methods) enable the deposition of nanometer-thin layers to realize a clearly defined interface modification. They are used to realize hydrophobic or metallized surfaces, for example. The advantages of those vacuum-based processes related to wet-chemical processes are that many substrates per process can be coated efficiently and extremely homogeneously. In contrast to wet-chemical coatings, vacuum-based processes allow the coating of numerous substrates per cycle and, simultaneously, a high control of layer thickness and homogeneity. Depending on the process technology, the materials can be transferred from the solid or liquid phase into the gas phase to build up a solid layer on the substrate surface. Different variants of PVD technology are distinguished: using the thermal evaporation, the material is strongly heated by an electrical heater und transferred into the gas phase, while using the electron beam evaporation, the evaporation energy is supplied by a high-voltage electron-beam gun.

NanoCoatings - surface technologies for product protection

Ara-Authentic GmbH
Gundstr. 13
D - 91056 Erlangen
Phone: +49 9131 - 9089500
Fax: +49 9131 - 90895050
Email | www.ara-authentic.de

It is very difficult for every end-user to decide whether a product is an original or a fake. Exactly for this purpose Ara-Authentic GmbH has developed new coatings on the basis of the technology of Physical Vapour Deposition (“PVD”). The appropriate setting of PVD process parameters lead to nanostructured surfaces, which show two or more different colors depending on the light conditions. This effect is used for authentification: with an App, developed by Ara-Authentic, every end-user can verify now products which are labeled with Ara-Authentic. This optical effect is not reproducible without production knowledge, because the “nano morphology” is not able to reengineer. These forgery proof coatings can be applied on a lot of different product surfaces like watches, jewelry, sporting goods, drugs, spare parts and much more.

NanoCoatings - innovative surface and coating technology in serial production

Schaeffler Technologies AG & Co. KG
Industriestraße 1-3
D - 91074 Herzogenaurach
Phone: +49 9132 - 82-0
Fax: +49 9132 - 82-4950
Email | www.schaeffler.com

Schaeffler with its product brands INA, LuK and FAG is a world-wide leading contractor of rolling and sliding bearing solutions, linear and direct drive technology as well as a renowned supplier of precision components and systems in engine, gear train and chassis for automobile industry.  

For the common protection of long-term entrepreneurial success, it is of strategic importance to provide solutions components and systems that offer an added value compared to our market companions for the world-wide customers are of strategic importance. Therefore, the surface technology offers a wide and important potential to be forced and purposefully used.

With the development and establishment of the Schaeffler coating tool box, an effective and efficient product development with added value for the customer is guaranteed. Therefore, Schaeffler succeeds to provide components and systems with increased lifetime by increased wear and corrosion protection as well as isolation against electrical corrosion or superior energy efficiency by providing friction reduction for various tribological systems. Recent, developments also enable sensor-technical coatings for mechatronical components.

By the introduction of corresponding label names such as Triondur®, Corrotect®, Durotect®, Insutect® and Sensotect®, it additionally succeeded to achieve a close coupling between products, company and customer.

The Coating Center in Herzogenaurach is equipped with most modern vacuum system technology for particularly environment-friendly and innovative PVD (Physical Vapour Deposition)- /PACVD (Plasma Assisted Chemical Vapour Deposition)- as well as galvanic coating techniques. Therefore, different coating technologies can be used separately or in combination to offer the best available solution with respect to efficiency and costs aspects.

The power spectrum of Schaeffler surface technology contains all steps and capacities of the development of application orientated coating systems up to serial production.

NanoCoatings – Development of innovative and application-specific functionalizations of surfaces

Innovent e.V. Technologieentwicklung Jena
Prüssingstraße 27b
07745 Jena
Phone: +49 3641 282510
Fax: +49 3641 282530
Email | www.innovent-jena.de

INNOVENT e.V. Technology Development Jena is a major non-profit research facility working on the main research areas of surface engineering, primer and chemical surface treatment, magnetic and optical systems, biomaterials and analytics and material testing.

Applications encompass surface engineering of glass, metals and plastics, medical engineering, optics as well as microsystems technology including product and technology development. Based on a profound basic research INNOVENT conducts application-oriented research and development projects, generally in close cooperation with small and medium-sized enterprises but also with large, internationally active companies. Special attention is given to the development of CCVD, r-CCVD and plasma CVD technologies, but the classical low pressure coating processes are being applied as well.

Aims of developments in field of surface engineering are:

  • adhesion promotion
  • improvement of the corrosion resistance
  • increase of the aging resistance of materials and coatings
  • surface functionalization (hydrophilic, hydrophobic, oleophobic)
  • functional optical layers (transmission increase or anti-reflex, switchable layers, photocatalysis)
  • wear and scratch resistant layers
  • barrier layers
  • tribological layers

INNOVENT has broad experiences in the application and handling of public funded projects in cooperation with industrial companies and other research facilities. Many research projects are directly financed by the industry.

NanoMilling - agiator bead mills for comminution of materials down to nanometric size

NETZSCH-Feinmahltechnik GmbH
Sedanstraße 70
D - 95100 Selb
Phone: +49 (0) 9287 - 797-0
Fax: +49 (0) 9287 - 797 149
Email | www.netzsch-grinding.com

The company NETZSCH-Feinmahltechnik GmbH has a long experience in manufacturing of process parameters of agitator bead mills. The range of grinding chamber volumes from 0.015 to 10,000 liters shows the variety of different mills that are produced. The machines excel by their long lifetime and hereby guarantee a high reliability. Agitator bead mills are used for the disagglomeration as well as for the real comminution of materials down to the nanometer size range from different industries.

Real comminution and disagglomeration processes require different stress energies of the grinding media. The main advantage of grinding technology is the scalability of the process form very small quantities to a real production scale. For real comminution processes it is recommendable to use an optimized grinding media size and a high stirrer tip speed of the agitator, whereas for smooth dispersion processes the use of very small grinding media with very small stirrer tip speeds of the nagitator is necessary to keep the morphology of the primary particles. For real comminution of coarse particles as well as for disagglomeration of powders with primary particles sizes in the nanometer range the use of very small grinding media is required.

However, these small grinding media with diameters between 30 µm and 300 µm call for a special machine design adapted to their size for being able to allow easy and safe handling. By the development of a new open dynamic grinding media separation system extremely small grinding media can be used for comminution and disagglomeration processes with at the same time avoiding any metal contact inside of the mill.

Dispersion of nano additives - tailor-made properties by defined admixture of nanoadditives

Ansprechpartner:
Dr.-Ing. Felipe Wolff-Fabris

Weissenbacher Str. 86
D - 95100 Selb
Phone: +49 (0) 9287 99880-11
Fax: +49 (0) 9287 99880-13
Email | www.skz.de/ezd

Nano additives are currently used to tailor the properties in particular of plastic parts, such as nano silver for antibacterial effect or layered silicates to improve mechanical and barrier properties. In comparison to micro-additives, nanotechnology allows to reach similar or better performance at much lower additive contents, due to the larger particle-polymer-interface. The dispersability of nano particles in the matrix is crucial to the final properties since the nano particles tend towards agglomeration due to the sizeable surface and Brownian motion.

In order to produce homogeneously dispersed nano composites, three aspects have to be taken into consideration:

  • The surface of the particle has to be matched to the matrix, which can be achieved by chemical or physical surface modification (e.g. chemical wet processes and plasma treatment).
  • Agglomerates have to be mechanically destroyed leading to the homogeneous isolation of single particles in the matrix, for instance by shear forces (e.g. three-roller mill or high pressure homogeniser) or by cavitation (e.g. ultrasonic dispersion).
  • The stabilisation of the nano-suspension is required to avoid re-agglomeration, and can be assured either by a suitable previous surface modification or by addition of surfactants.

The European Centre for Dispersion Technologies (EZD) - a new business segment of SKZ - seeks to boost the availability of the nano dispersion technology for the industry and implement it in R&D cooperation projects.

NanoDispersion - Defined dispersion for defined material characteristics

EXAKT Advances Technologies GmbH
Robert-Koch-Str. 5
D- 22851 Norderstedt
Phone:  +49 40 529560-0
Fax:  +49 40 5249959
Email | www.exakt.de

Three Roll Mills are key technology for directed dispersion to govern the functional properties of Nanomaterials.  They enable optimum results and efficiency for pastes with special regard to particle size and distribution as well as the preservation of particle structure and function to control the functional properties of materials.

Nano particles tend to agglomerate. Only when separated they develop their specific characteristics,  and the degree of separation is decisive for a certain function.  The nature of the process  and the machine design enable a homogenious and controllable energy input into the product. For optimum reproducibility  the known process parameters  can be reused at any time.

The goal is to govern the process in the best possible way to reduce development time, time to market and to provide steady production conditions.

 

NanoFoils - property-improved polymer foils

Klöckner Pentaplast GmbH Co.KG
Industriestr. 3-5
D - 56412 Heiligenroth
Email | www.kpfilms.com

As a manufacturer of packaging foils for pharmaceutical and food packaging, Klöckner Pentaplast manufactures over 500,000 tons of hard foils worldwide, made of PVC, PET, PA and other materials in accordance with the calendering and extrusion method. New NanoProcess Technologies for surface coating such as the spraying method, felt-jet application or Corona Aerosol surface treatment have revolutionized the properties of modern packaging.

With the help of nanotechnology, completely new applications are obtained in the aftermath of the enormous enlargement of the active surface, while – at the same time – retaining the transparency of the foils. Moreover, NanoProcess Technologies promise a minimum adverse impact on nature through minimum resource utilization. Here are a few property-improved polymer foils selected from the wide range of already realized and other yet imaginable examples of applications for improved packaging foils:

  • improved mechanical properties extending the protection and storage life of the packaging product
  • introduction of customized printability and scratch resistance
  • intelligent surfaces, providing information on the state of the packaging product such as indicators for the expiration of storage life (drop in humidity and pH value, time indicators, indicators of the breach of cooling temperatures, etc.)
  • anti-microbial and oxygen-absorbing surfaces
  • anti-static and anti-corrosive surfaces
  • special, illuminating color pigments for counterfeit protection

In its factory at St. Petersburg, Klöckner Pentaplast runs, a joint “Research Center for Polymer Films” together with the Technological Institute of St. Petersburg where scientific findings on nanotechnology are coupled with laboratory and production equipments for foil production and the first applicable foils with properties that are particularly based on nanotechnology are produced.