Surface energy determination on thin wires using picolitre drops
Resource type:
Application note
Format:
pdf
Date of creation:
6 January 2024
Library code:
13628
The surface energies of a tinned and a pure copper wire were determined measuring contact angles with various liquids using the DataPhysics optical contact angle measuring and contour analysis system OCA 200 in combination with the picolitre dosing system PDDS. With this system it is possible to determine the surface energy directly on the thin wires, which are just a few 100 µm in diameter, since optimizing the shape and minimizing the volume of the picolitre drops allows to reliably measure contact angles even on smallest surfaces.
