black sol gel on Stainless Steel Arceo Engineering, 12 sept. 2016 1 - - PowerPoint PPT Presentation

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless black sol gel on Stainless Steel

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless

Metal Primer Top coat Transparent protection layer Metal Top coat + protection

 Context of the NANOSOL project

Protection of organic layers

• Coating for home appliances
• Anti finger print coating

Functional coating

• Performance comparison

with conventional coatings

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless

• Coating based on the Nanoxid product range: application by

spray or roll coating

Colloïdal solution – SiO2 liquid film application drying

• Black sol gel = Nanoxid (transparent) + carbon particles

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless

1 µm 5 µm  Application on brushed stainless steel – trial on Arceo Engineering roll coating line

• Coating thickness
• Aspect (color and gloss)
• The « metallic grinded look » is kept alive
• The aesthetics depend on the layer thickness : black  bronze
• Gloss compared to grinding direction :
• Gloss parallel to grinding //: 40
• Gloss perpendicular to grinding : 12

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Mechanical properties

• Qualitative tests
• Adherence on flat surface

and crossed surface : 100% adherence

• Standard tests
• Impact resistance: 18 J
• T-bend
• Excellent adherence on the

substrate

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Mechanical properties

• Test Erichsen: up to 6 mm
• Test Marciniak 13% deformation

 No cracks, no delamination  No color change on deformed zones

• Ability for deepdrawing

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Mechanical Properties : hardness

• Indentation: measurement of hardness and elasticity module

Hardness calculation:

• For micrometric coatings control of the indentation depth at nanometric scale
• Nanoindentation: load ~100 mN, indentation depth ~ 1-2 µm

Coating Hardness (Gpa) Young Module (Gpa) Anti finger print varnish

0,2 3-5

Black sol gel

0,2 4

304 steel : H= 3-5 GPa

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless

 Mechanical characteristics : tribologic properties

• Measurement of the friction coefficient  tribometer pawn-disc

 Low friction coefficient: µ ~0,3

• Good resistance to wear

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Resistance to friction

weight (0,25 to 1 kg) Observation quotation No scratches Low density of scratches 1 Medium density of scratches 2-3 High density of scratches 4 Completely scratched 5

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless

Référence Référence 10 AR // Référence 10 AR  + 10 * back and forth with soft cloth

• scratches emanate from the scratching device
• soft cloth allows easy cleaning of the scratches

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Corrosion resistance

QCT > 4000 h (in progress) Salt Spray Test > 2000 h (in progress) QUVa + humidity > 4000 h (in progress)



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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Chemicals and Food resistance

Food stuff

24h @ 23°C Milk Butter Lemon Cola

Chemicals

24h @ 23°C Ethanol Acetone Acetic acid

Food stuff

2h @ 23°C Ketchup Mustard Tomato sauce

Chemicals

2h @ 23°C CIF detergent NaOH

Food stuff

1h @ 70°C Tea Coffee Olive oil Salt water

 Temperature resistance  1h @ 170°C : OK

 1h in boiling water : OK  Certificate of compliance Safety of Toys EN71-3  Certificate of non migration as per EN-1186 (migration 0004-S)

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Arceo Engineering, 12 sept. 2016

ArenNano Black Stainless  Conclusions

 The ArenNano Black Stainless coating solution shows :

• a pleasant aesthetic finish respecting the grinded metallic

appearance

• Resistance to wear and friction
• Bending and deepdrawing (13% Marciniak) abilities
• Resistance to food stuff and chemicals

 Typical applications are :

• Household goods, home appliances, kitchen decoration,

indoor architecture  Effective outdoor corrosion tests allow as well outdoor applications (tests ongoing).

Arceo Engineering Ivoz-Ramet Belgium www.arceo-eng.com sales@arceo-eng.com