The Displacement of Water from a Steel Surface.

Abstract

A quantitative test to evaluate liquid compounds for their ability to displace water droplets from a steel surface has been developed and a study of the water displacement mechanism has been made. The test method consists of placing water droplets onto an inclined steel surface, followed by the application of a test agent. The agent flows down the surface, contacting the water drops. The water may either remain on the specimen or be displaced. The specimen is then immersed in methanol which absorbs residual water on the specimen. The methanol is then analyzed for water content, yielding a quantitative result for water displacement. Five materials have been evaluated. Two silicone alkyd compounds were found to be good water displacers. A third silicone alkyd compound was found to be a poor displacer at low angles but effective at higher angles. An acrylic and an epoxy coating were found to be poor water displacers. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 08, 1982
Accession Number
ADA122595

Entities

People

  • Charles R. Hegedus

Organizations

  • Naval Air Warfare Center Warminster

Tags

Communities of Interest

  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Alcohols
  • Chemical Reactions
  • Coatings
  • Corrosion
  • Fatty Acids
  • Low Angles
  • Material Degradation Processes
  • Materials
  • Military Research
  • Organic Compounds
  • Petroleum
  • Plastic Explosives
  • Resins
  • Standards
  • Surface Tension
  • Test Methods

Readers

  • Petroleum Engineering
  • Surface Coatings Technology.