Superhydrophobic silica is a silica powder which is characterized by its water contact angle more than 150° and the sliding angle less than 10°. Superhydrophobic silica particles are prepared by the chemical reaction of hydrophilic silica with reactive silanes (fluorinated/nonfluorinated).

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Superhydrophobicity in silica is processed through surfacemodification/treatment. The hydrophobicity into the hydrophilic silica is introduced by reacting its hydrophilic group-ends (silanol groups) with certain organosilane functional groups.

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These organic groups are introduced by reagents like Fluorinated silanes. These organic groups get anchored on the hydrophilic silica surface via formation of co-valent bonds. The surface modification changes the chemical properties of the previous non-treated hydrophilic silica hence hydrophobically characterize the silica surface, making the silica hydrophobic in nature.

 

Superhydrophobic silica is a versatile product that can be used as raw-materials or as an additive in many industries such as paint and coatings as well as construction chemicals such as adhesives, automobiles and even solar-energy sectors.. The applications are aplenty and there are benefites in the application of Superydrophobic Silica in silicone rubber, sealants etc...

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It is often manufactured as both single and multiphase composites in order to enhance properties such as dispersion, stability behavior, resistance to water, and functionality.

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Some of the key Application Sectors of Superhydrophobic Silica covered in this guide includes:

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• Automobiles

• Marine

• Aircrafts

• Solar-Energy

• Pharmaceuticals

• Self-cleaning Wearables

• Smart Sponges

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Download: Superhydrophobic Silica - Application Guide