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Wednesday, 18 September 2019
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Raw materials & technologies, Technologies, Functional coatings

Characterising superhydrophobic epoxy coatings embedded by new nanomaterials

Wednesday, 16 November 2016

Superhydrophobic surfaces attracted great attention to protect different substrates from water, dust and corrosive environment. 

Superhydrophobic surfaces protect substrates from water, dust and corrosive environment. Source: Cornerstone/pixelio.de

Superhydrophobic surfaces protect substrates from water, dust and corrosive environment. Source: Cornerstone/pixelio.de

In a work, new calcium carbonate nanomaterials modified with epoxidised fatty acid are used to alter the hydrophilic characteristics of epoxy resins.

Optimum CaCO3 content was 5 wt%

The best conditions to coat the glass and steel surface with hydrophobic calcium carbonate were investigated to obtain superhydrophobic surfaces. The surface morphologies, thermal stability, crystal structure, particle sizes and shapes were also reported and discussed. Results showed that the epoxy coatings embedded by optimum CaCO3 content was 5 wt% to produce superhydrophobic epoxy with high water contact and low slide angles.

The study is published in: Progress in Organic Coatings, Volume 101, December 2016, Pages 577–586

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