A facile method to prepare superhydrophobic coatings by calcium carbonate / Hua Zhang in Industrial & engineering chemistry research, Vol. 50 N° 6 (Mars 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3089–3094 Titre : A facile method to prepare superhydrophobic coatings by calcium carbonate Type de document : texte imprimé Auteurs : Hua Zhang, Auteur ; Xiaofei Zeng, Auteur ; Yongfeng Gao, Auteur Année de publication : 2011 Article en page(s) : pp. 3089–3094 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Calcium Carbonate Résumé : In this work, we have developed a facile and inexpensive method to fabricate a superhydrophobic surface with hierarchical nano- and microstructures. The superhydrophobic surface was prepared through spin coating of a mixture of nano- and microsized calcium carbonate (CaCO3) suspensions on a substrate, followed by modification of a low-surface-energy monolayer of stearic acid. The key parameters of the fabrication of suitable surface morphologies, including the content of CaCO3 powder and the percentage of nano- and microsized CaCO3 powder, were also investigated. Results showed that the optimum CaCO3 content was 40 wt % and the self-cleaning property of the film was achieved only by the addition of 2 wt % microsized CaCO3 powder and 38 wt % nanosized CaCO3 powder. After modification with a self-assembled monolayer of stearic acid, the as-prepared coating showed self-cleaning properties with a water contact angle as high as 152.8° and a sliding angle of 7.8°. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102149y [article] A facile method to prepare superhydrophobic coatings by calcium carbonate [texte imprimé] / Hua Zhang, Auteur ; Xiaofei Zeng, Auteur ; Yongfeng Gao, Auteur . - 2011 . - pp. 3089–3094. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3089–3094 Mots-clés : Calcium Carbonate Résumé : In this work, we have developed a facile and inexpensive method to fabricate a superhydrophobic surface with hierarchical nano- and microstructures. The superhydrophobic surface was prepared through spin coating of a mixture of nano- and microsized calcium carbonate (CaCO3) suspensions on a substrate, followed by modification of a low-surface-energy monolayer of stearic acid. The key parameters of the fabrication of suitable surface morphologies, including the content of CaCO3 powder and the percentage of nano- and microsized CaCO3 powder, were also investigated. Results showed that the optimum CaCO3 content was 40 wt % and the self-cleaning property of the film was achieved only by the addition of 2 wt % microsized CaCO3 powder and 38 wt % nanosized CaCO3 powder. After modification with a self-assembled monolayer of stearic acid, the as-prepared coating showed self-cleaning properties with a water contact angle as high as 152.8° and a sliding angle of 7.8°. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102149y

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