Nanocoating close to the market

Transcription

1 Nanocoating close to the market Moritz Graf zu Eulenburg

2 Introduction Market overview Overview of most important coating aspects Description of different coating systems Description of different drying processes Summary InovisCoat 2

3 Market Overview

4 Market overview Functional coatings including nanoparticles are used for: Energy Systems like flexible solar cells, barrier sheets and printed circuits Lighting Systems like OLEDs, flexible displays and electroluminescent panels Medical Systems like diagnostics, transdermal systems and wound care Security Systems like identification systems, organic labels or tags Optical Systems like reflection, photo-chromic InovisCoat 4

5 Important Coating Impacts

6 Coating Chemistry Viscosity Surface tension Rheology Sheer ratio Amount of solids Adhesion/Cohesion Type of solvents Coating Process Direct or Transfer Single or Multilayer Layer Thickness Coating accuracy Contact angle Substrate speed Coating systems Curing & Drying Convection drying Contact drying Infrared drying NIR Sintering UV crosslinking systems High Frequency Microwave Cleaning Corona Plasma Pretreatment Coated Products Calendaring Embossing Laminating Slitting Finishing Substrate Surface structure Substrate tension Dimension stability Environment Control Humidity Temperature Clean room Light Inert Conditions Process Control Tension control system Material guiding system Coating Weight control Surface defect detection InovisCoat 6

7 Coating Systems

8 Case Knife Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Chemicals with higher viscosity, high volatile materials and solvents, Use for lacquering and adhesives Source: Coatema InovisCoat 8

9 Case Knife Advantages: Closed system Stripe coating High Speeds possible Breathable products possible Lower energy consumption Source: Coatema InovisCoat 9

10 2 Roller System Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Lacquering of coated surfaces Thin layers on unstructured substrates (e.g. foils) Printing / structuring via engraved roller Definition of coating weight by different gravure designs Source: Coatema InovisCoat 10

11 5 Roller System Variation of coating weight: 0,5 50 g/m² Range of viscosity: mpas Typical applications: Thin layers of silicone for release papers or release foils Source: Coatema InovisCoat 11

12 Micro Roller Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Finishing of non-wovens Thin layers Fuel cells Source: Coatema InovisCoat 12

13 Micro Roller Advantages: Control of coating weight by the position of the rollers and also the substrate tension Application of very thin coating layers Especially for medical coatings Source: Coatema InovisCoat 13

14 Dipping unit Variation of coating weight: Depending on substrate, min. 10 g/m² Range of viscosity: mpas Typical applications: Impregnation Layers with low viscos coating materials Dyeing processes Doubleside coating Source: Coatema InovisCoat 14

15 Slot die Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Thin layers Stripe coating possible Closed system InovisCoat 15

16 Multilayer Coating

17 Double Side Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Thin layers Intermittent coating Li-Ion Batteries Source: Coatema InovisCoat 17

18 Multi Slot Die Variation of coating weight: g/m² Range of viscosity: mpas Typical applications: Thin layers Optical products Time for relaxation Source: Coatema InovisCoat 18

19 Cascade Coater Coating weight / thickness: From 0.3 to 20g/m² (dry) 300nm to15µm (dry) Precision: Length and width: +/- 2% Viscosity range: mpas, Existing pastes with much higher viscosity can be adapted! Up to nine layers can be coated simultaneously with no mixing InovisCoat 19

20 Multilayer Coating Advantages: No additional stress to the substrate through heating, winding and handling Economic way of drying No contact of the substrate Coating films can be independent in thickness from substrate No unnecessary penetration of the substrate Economic use of chemicals Closed system Very thin layers possible InovisCoat 20

21 Drying Systems

22 Drying processes Convection / Hot air Floatation IR/NIR UV Curing Micro wave InovisCoat 22

23 Infrared Advantages: Up to 50% less energy consumption Reaction time between 2 4 seconds High temperatures possible Up to 80% less space needed No heating media like oil needed Less dust and particles Source: Coatema InovisCoat 23

24 UV Curing Advantages: No solvents or water needs to be removed Very fast curing possible Much faster production speed Optically more brilliant Source: Coatema InovisCoat 24

25 Summary Production of functional products from roll to roll: Chemicals, substrate and process need to match Adaptations in all three are usually possible Application systems need to be chosen carefully Drying technology should be selected regarding flexibility and energy consumption InovisCoat 25

26 InovisCoat Provides: Chemical consultancy and solutions Chemical products ready to use Coating process consultancy and solutions Coated products for all aspects of functional coatings with specific experience of photo optical, medical, security and conductive products, especially for extreme precise multilayer coatings InovisCoat 26

27 Thanks to Andrea Glawe, Coatema GmbH Heraeus for IR / UV information and pictures AiF, BMBF, FP InovisCoat 27

28 InovisCoat Thank you very much for your kind attention! InovisCoat 28