A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Superhydrophobic Fluorosilane and Alkylsilane Diatomaceous Earth Particles Treated Polyurethane
Hydrophobic and superhydrophobic coatings were prepared using fluorosilane (FS) and alkylsilane (AS) modified diatomaceous earth (DE) with a polyurethane. The thermal properties of modified FS-DE and AS-DE were probed using thermogravimetric analysis yielding 3.8% and 6.8% silane adsorption, respectively. The hydrophilicity and morphology of the materials were analyzed using contact angles and scanning electron microscopy. The water contact angles were studied as a function of the particle loadings of fluorosilane and alkylsilane modified DE in the coatings. The water contact angles reached superhydrophobicity (water contact angles ≥ 150°) with 20% and 30% particle loadings of FS-DE and AS-DE, respectively. For FS-DE, the contact angle reached 160° with more than 20% particle loadings, while AS-DE remained superhydrophobic between 30-50% particle loadings. Above 50% AS-DE particle loadings, the contact angles were reduced. These results were consistent with those from scanning electron microscopy.
Superhydrophobic Fluorosilane and Alkylsilane Diatomaceous Earth Particles Treated Polyurethane
Hydrophobic and superhydrophobic coatings were prepared using fluorosilane (FS) and alkylsilane (AS) modified diatomaceous earth (DE) with a polyurethane. The thermal properties of modified FS-DE and AS-DE were probed using thermogravimetric analysis yielding 3.8% and 6.8% silane adsorption, respectively. The hydrophilicity and morphology of the materials were analyzed using contact angles and scanning electron microscopy. The water contact angles were studied as a function of the particle loadings of fluorosilane and alkylsilane modified DE in the coatings. The water contact angles reached superhydrophobicity (water contact angles ≥ 150°) with 20% and 30% particle loadings of FS-DE and AS-DE, respectively. For FS-DE, the contact angle reached 160° with more than 20% particle loadings, while AS-DE remained superhydrophobic between 30-50% particle loadings. Above 50% AS-DE particle loadings, the contact angles were reduced. These results were consistent with those from scanning electron microscopy.
Superhydrophobic Fluorosilane and Alkylsilane Diatomaceous Earth Particles Treated Polyurethane
Perera, Helanka J. (author) / Blum, Frank D. (author)
2022-02-21
1395396 byte
Conference paper
Electronic Resource
English
| Engineering Index Backfile | 1929
| British Library Online Contents | 2012
| Engineering Index Backfile | 1932
| British Library Online Contents | 2014