Research report / Cold Regions Research and Engineering Laboratory, 36
Description / Table of Contents:
Summary: Measurements were made with 22 more or less hydrophobic polymers and lacquers at intervals of 5 or 10 min for periods up to 1 hr. All surfaces were carefully cleaned, and some surfaces were baked. Highest initial (time 0) average contact angles ( 106° - 106.6°) were measured for Foster Snell rain repellant wax, Barrett 25-218 water repellant varnish (air-dried), and Cardolite NRL-7241. After 40 min, contact angles for these substances were 95.6°, 90.9°, and 91.0°. The measurement apparatus is illustrated, and data are tabulated.
Type of Medium:
Series available for loan
ii, 11 Seiten
Research report / Cold Regions Research and Engineering Laboratory 36