Superhydrophobic coatings were made using fluorosilane treated diatomaceous earth with different polymeric resins/binders. These coatings have been characterized with contact angle measurements, scanning electron microscopy and calorimetry. Contact angles greater than 150° were attainable if the particles were sufficiently coated with fluorinated coupling agents and also if there were enough particles in the coatings. The critical particle loadings depended on the resin/binder system used. The behavior of these surfaces mimics that from, for example, the lotus leaf as they had low surface energies and also appropriate nano-micro structures.

Superhydrophobic coatings from Treated diatomaceous earth

253rd National Meeting (2017)

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