Fabric
Splash
This video shows the splash resistant effect of the Repellix treatment on a fabric swatch. The left swatch is uncoated, and easilty wets as the water is squirted onto it. In contrast, the right swatch has been coated with Repellix, and is strongly resistant to the water jet.
Dunk
For this test, we wrap the swatches around a plastic dipstick and immerse them in tinted water. The uncoated swatch readily soaks up the water, whereas the Repellix coated sample remains impervious to absorbtion, showing no signs of wetting either.
Floatation
How does Repellix affect flotation properties of fabrics? In this experiment, swatches are dropped into the liquid to observe their buoyancy. The untreated cloth sinks within 2 seconds, but the sample with the Repellix coating floats. After forcing it under water, it bounces back to the surface and resumes floating, having not been wetted, and retaining its layer of air.
Contact Angles
Dry No Coat
Looking at the side of the fabric through the Goniometer lens, we see a rough, spikey surface.
Wet No Coat
After dispensing the water droplet, the droplet absorbs immediately into the fabric, swelling the area that is wet (left side of photo).
Wet with Repellix
Coated with Repellix, the fabric does not absorb the water, and demonstrates hydrophobic contact angle performance.
Microscope Pics
Top View
Top View - Close Up
Side View - Close Up
Air bubbles on substrate - water interface are visible
Side View - Close Up
Air bubbles on substrate - water interface are visible
Side View - Close Up
Side View - Close Up
Top View - Close Up
Air Plenum - Close Up
Integrated Surface Technologies can demonstrate Repellix coatings in its Menlo Park lab today.
To date, we have conducted demos for many customers, for a wide variety of applications.
We have also tested Repellix on a variety of devices and test structures, many of which are reported throughout the website (see the library for a master collection).