Superhydrophobic diatomaceous earth (SHDE) was prepared by treating diatomaceous earth with silane coupling agents. Coatings were prepared using treated diatomaceous earth and different polymers as binders. The contact angle measurement revealed that the hydrophobicity of the treated DE and polymer coatings improved with modification of DE with the silane-coupling agents. The development of hydrophobicity was found to be dependent on the molecular weight of polymer binder and viscosity of the coating mixture. The development of hydrophobicity will be discussed in terms of amounts of treated diatomaceous earth particles in treated diatomaceous and polymer coatings.

Development of superhydrophobicity in treated diatomaceous earth containing polymer coatings

247th National Meeting (2014)

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