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Angela Rippley's Lab Photography

 

large product photo   Water Drops on Teflon

While perfoming contact angle measurements, we had some fun with water drops of various sizes (10-30uL) on teflon tape.

polyurethane recrystallization in ethyl acetate  

Polyurethane Crystallization

While performing a swell test of a particular polyurethane sample in ethyl acetate, a nice recrystallization occurred.

bubble nucleation upon cure  

Bubble Nucleation

Quickly degassing a two-part adhesive is essential. Bubbles may nucleate during cure.

Contact Angle Analysis  

Contact Angle Analysis

The ImageJ software program has a contact angle plugin. This photo is a 20uL DI water drop on Ti 6 4 alloy.