Hydrophilicity, Solubility and Optical Properties in Composite Films of Gelatin and Bentonite Clay in its Natural Form or Modified
Bentonite clay was initially treated with a quaternary ammonium salt to increase its hydrophobicity, and then was dispersed in a gelatin matrix to serve as barrier to water vapor. The clays were characterized by IR spectroscopy in the infrared (FTIR), and X-ray diffraction (XRD), before and after io...
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| Veröffentlicht in: | Materials science forum 2018, Vol.912, p.136-140 |
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| creator | Aroucha, Edna Maria Mendes dos Santos, Francisco Klebson Gomes Leite, Ricardo Henrique de Lima Oliveira, Victor Rafael Leal Monteiro, Mayra Keroly Sales Vitoriano, Jussier Oliveira |
| description | Bentonite clay was initially treated with a quaternary ammonium salt to increase its hydrophobicity, and then was dispersed in a gelatin matrix to serve as barrier to water vapor. The clays were characterized by IR spectroscopy in the infrared (FTIR), and X-ray diffraction (XRD), before and after ion exchange. The ion exchange held in the clay provokes on gelatin film a reduction of 65% in the water vapor permeability (WVP); a decrease in solubility of 55%; an increase of 35º in drop contact angle of water on the surface of the film; and 30% of raise in opacity. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.912.136 |
| format | Article |
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The clays were characterized by IR spectroscopy in the infrared (FTIR), and X-ray diffraction (XRD), before and after ion exchange. 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| subjects | Bentonite Clay Contact angle Fourier transforms Gelatin Hydrophobicity Infrared spectroscopy Ion exchange Optical properties Quaternary ammonium salts Solubility Water vapor X-ray diffraction |
| title | Hydrophilicity, Solubility and Optical Properties in Composite Films of Gelatin and Bentonite Clay in its Natural Form or Modified |
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