Development of Sustainable Polymer Coatings from Plant Oils
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University of Akron / OhioLINK
2020
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=akron1596420480124218 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-akron15964204801242182021-08-03T07:16:12Z Development of Sustainable Polymer Coatings from Plant Oils Wang, Haoran Polymers Chemical Engineering Chemistry This dissertation focuses on developing plant oils-based sustainable coatings and on synthesizing plant oils-based chemicals as renewable building blocks for polymer coatings. In the first part of this dissertation (Chapter III and IV), methacrylated cardanol (MACO) and triethoxysilane-functionalized cardanol (TSCO) had been synthesized and investigated as bio-based reactive diluents for formulating alkyd coatings as a substitute for volatile solvents. Both MACO and TSCO were able to significantly reduce the viscosity of a representative alkyd and to participate in the cross-linked network of the alkyd coating as confirmed by the gel content and cross-link density of the cured coating films. Furthermore, they were investigated as the reactive diluents for a zinc phosphate pigmented alkyd coating. With the aid of salt spray test and electrochemical impedance spectroscopy (EIS), MACO was demonstrated to be able to improve the corrosion resistance of the zinc phosphate pigmented alkyd coating.In the second part (Chapter V), a novel effective and sustainable synthetic strategy (the combination of thiol-ene and thiol-epoxy click-reactions) for preparing cardanol-based polyols with a relatively high hydroxyl number was developed. The synthesized polyols were further formulated with hexamethylene diisocyanate trimers to prepare thermosetting polyurethane (PU) films. It was found that with increasing the hydroxyl number of cardanol-based polyols, the cross-link density, glass transition temperature, elastic modulus, tensile strength, and hardness of cardanol-based PU films were all improved. The third part (Chapter VI) emphasized on studying microcapsule-based self-healing coatings. The anticorrosive performance of a linseed oil encapsulated self-healing coating was evaluated by EIS. It was found that the intact self-healing coating exhibited excellent anticorrosive property as the intact pure epoxy coating, and the healed coating cannot recover the barrier property as good as the intact coating. The reason for the inferior barrier property of the healed coating might be the weak interaction between the linseed oil film and the epoxy matrix and/or microcapsule shell as supported by the EIS analysis. 2020-08-25 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1596420480124218 http://rave.ohiolink.edu/etdc/view?acc_num=akron1596420480124218 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Polymers Chemical Engineering Chemistry |
| spellingShingle |
Polymers Chemical Engineering Chemistry Wang, Haoran Development of Sustainable Polymer Coatings from Plant Oils |
| author |
Wang, Haoran |
| author_facet |
Wang, Haoran |
| author_sort |
Wang, Haoran |
| title |
Development of Sustainable Polymer Coatings from Plant Oils |
| title_short |
Development of Sustainable Polymer Coatings from Plant Oils |
| title_full |
Development of Sustainable Polymer Coatings from Plant Oils |
| title_fullStr |
Development of Sustainable Polymer Coatings from Plant Oils |
| title_full_unstemmed |
Development of Sustainable Polymer Coatings from Plant Oils |
| title_sort |
development of sustainable polymer coatings from plant oils |
| publisher |
University of Akron / OhioLINK |
| publishDate |
2020 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=akron1596420480124218 |
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AT wanghaoran developmentofsustainablepolymercoatingsfromplantoils |
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