Diese Präsentation wurde erfolgreich gemeldet.
Die SlideShare-Präsentation wird heruntergeladen. ×

Hydrophobic lamp black presentation

Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Anzeige
Nächste SlideShare
wet etching
wet etching
Wird geladen in …3
×

Hier ansehen

1 von 16 Anzeige
Anzeige

Weitere Verwandte Inhalte

Diashows für Sie (18)

Ähnlich wie Hydrophobic lamp black presentation (20)

Anzeige

Hydrophobic lamp black presentation

  1. 1. Superhydrophobic coatings using LAMP BLACK Category: C3 Level: UG
  2. 2. Protective coatings • Hydrophobic coatings • Anti-corrossion • Scratch resistant • Anti-icing • Heat resistant
  3. 3. Lamp black coatings • Carbon micro/nanostructures • No hazardous chemicals • Environment friendly • Low cost/ cost effective • Easy synthesis
  4. 4. Experimental • Castor Oil and cotton wick • Substrates used: 1. Aluminium 2. Copper • Dimensions of substrate ≈ 2 cm x 5 cm • Manual deposition • Deposition time: 5 min
  5. 5. Photograph of coatings
  6. 6. Scanning Electron Microscopy A1 C1 Porosity: Reason for hydrophobicity Scanning Electron Microscope Laboratory, Physics Instrumentation Facility Centre (PIFC), Department Of Physics, Shivaji University Kolhapur-416004, MS (India).
  7. 7. Thickness of coatings Coating Thickness of coating (µm) A1 11.7 C1 13.6 A2 8.9 C2 6.0 𝒕 = 𝒎 𝟐 − 𝒎 𝟏 𝝆𝑨
  8. 8. Contact angle measurement θ = 117° θ = 135° θ = 140° θ = 142°
  9. 9. Sliding angle SA = 15° SA = 9° A2 C2
  10. 10. Comparison of contact angles Coating Contact angle Sliding angle A1 117° - C1 135° - A2 140° 15° C2 142° 9°
  11. 11. Video of excellent hydrophobic nature of C2 coating
  12. 12. Conclusion • Lamp black coatings show superhydrophobic character. • C2 coating on oil layered copper substrate showed contact angle of 142° while sliding angle of 9°. • These coatings can be applied as anti-corrosion coatings.
  13. 13. Issues to be worked on • Adhesion to substrate • Performance under high velocity water flow • Impact of abrasion
  14. 14. Thank you
  15. 15. References • 1 • 2 • 3 • . • , • .
  16. 16. Correlation of roughness and C.A.

×