Mirabedini, Mojtaba S. and Dutil, Isabelle and Gauquelin, Lucile and Yan, Ning and Farnood, Ramin R.
Preparation of self-healing acrylic latex coatings using novel oil-filled ethyl cellulose microcapsules.
(2015)
Progress in Organic Coatings, 85. 168-177. ISSN 0300-9440
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 934kB |
Official URL: https://doi.org/10.1016/j.porgcoat.2015.03.024
Abstract
Novel oil-filled microcapsules were prepared by introducing a phase separation method using ethyl cellulose as a shell-forming containing rapeseed oil. The prepared oil-filled microcapsules were evaluated by optical microscopy, scanning electron microscopy and particle size analysis. Results showed that spherical microcapsules with a diameter of 10 to 45 μm and a rough porous shell were obtained. Carboxylated styrene/butadiene copolymer latex films containing various levels of these microcapsules were subjected to various levels of pre-elongation and their tensile properties were examined. The addition of oil-filled microcapsules resulted in a significant improvement in the modulus, strain-to-break, and toughness of the films. The self-healing mechanism of latex films was examined through the colorimetric measurements of the release of dye-containing following the pre-elongation of the samples. These measurements confirmed that pre-elongation of samples resulted in the release of oil within the latex films, hence plasticizing the surrounding polymeric network and partly restoring the mechanical properties of the pre-elongated films.
Item Type: | Article |
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HAL Id: | hal-01943657 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Other partners > Iran Polymer and Petrochemical Institute - IPPI (IRAN) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > University of Toronto (CANADA) |
Laboratory name: | |
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Deposited On: | 16 Oct 2018 11:31 |
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