WETTING OF
IMMOBILISING PLASTER BANDAGES BY IMMERSION BEFORE APPLICATION
Andrej Fojkar
and Aleksander Pavko*
Faculty of Chemistry and Chemical
Technology,
Aškerčeva 5, 1000
Abstract
Samples of Vivagyps®
immobilising plaster bandages with three different porosities were prepared.
Their wetting rate before application was investigated at several water bath
depths. The wetting rate can be described by Darcy’s law for liquid flow
through porous beds, which is proportional to the material permeability and
water bath depth and inversely proportional to the material thickness and
liquid viscosity. Addition of surfactant to the plaster bandage before wetting
substantially improves the wetting rate.
Key words: wetting, plaster bandages