Accession Number:

ADA622811

Title:

Enhanced Thermal Transport of Surfaces with Superhydrophobic Coatings

Descriptive Note:

Final rept. Sep 2014

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE

Personal Author(s):

• Parker, Thomas C.
• Mitchell, Joshua R.
• Labukas, Joseph P.

Report Date:

2015-07-01

Pagination or Media Count:

16.0

Abstract:

Hydrophobic and superhydrophobic coatingssurfaces are often found in natural systems. These surfaces provide functional advantages, such as self-cleaning and water collection. In this work we show enhanced thermal transport of a copper tube with a superhydrophobic coating. We attribute this enhanced thermal transport to a reduced water layer thickness on the superhydrophobic surface. We used an idealized thermal transport model and showed that the predicted thermal transport rate agreed quantitatively with the observed transport rate and water layer thickness.

Descriptors:

• *COATINGS
• *HYDROPHOBIC PROPERTIES
• *SURFACE CHEMISTRY
• COOLING
• COPPER
• ELECTROCHEMISTRY
• ELECTRODEPOSITION
• ELECTROPLATING
• FLUORINATION
• HYDROPHILIA
• NANOSTRUCTURES
• QUANTITATIVE ANALYSIS
• SELF ASSEMBLED MONOLAYERS
• SODIUM SULFATES
• SUBSTRATES
• SURFACE PROPERTIES
• THERMAL RADIATION
• THICKNESS
• TRANSPORT PROPERTIES
• TUBES
• WATER

Subject Categories:

• Physical Chemistry
• Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE