Cationic, thermally cured coatings using epoxidized soybean oil
Cycloaliphatic epoxy resins are used in coatings and inks because of their exceptionally low viscosity and reactivity with a variety of co-reactants, thus permitting high-solids and zero VOC coatings. The low viscosity of epoxidized soybean oil (ESBO), its reactivity, and relatively low cost make it...
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| Veröffentlicht in: | Journal of coatings technology 2000-10, Vol.72 (909), p.125-133 |
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| container_end_page | 133 |
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| container_issue | 909 |
| container_start_page | 125 |
| container_title | Journal of coatings technology |
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| creator | RAGHAVACHAR, Ramya SARNECKI, Greg BAGHDACHI, Jamil MASSINGILL, John |
| description | Cycloaliphatic epoxy resins are used in coatings and inks because of their exceptionally low viscosity and reactivity with a variety of co-reactants, thus permitting high-solids and zero VOC coatings. The low viscosity of epoxidized soybean oil (ESBO), its reactivity, and relatively low cost make it an inexpensive candidate co-resin in cationic thermally cured coatings and inks using blocked acid catalysts. Formulations with up to 40% ESBO in the epoxy resin blend were investigated. Blending of cycloaliphatic resin with 10% ESBO gave a bake coating with the same results as the standard formulation except pencil hardness was one unit lower when cured for 12 mm at 120 deg C with a heat de-blocked catalyst. The hardness of coatings with ESBO is adjustable by changing the epoxy/polyol ratio, using harder polyols and harder epoxy resins. Substrates: steel panels. |
| doi_str_mv | 10.1007/BF02733784 |
| format | Article |
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The low viscosity of epoxidized soybean oil (ESBO), its reactivity, and relatively low cost make it an inexpensive candidate co-resin in cationic thermally cured coatings and inks using blocked acid catalysts. Formulations with up to 40% ESBO in the epoxy resin blend were investigated. Blending of cycloaliphatic resin with 10% ESBO gave a bake coating with the same results as the standard formulation except pencil hardness was one unit lower when cured for 12 mm at 120 deg C with a heat de-blocked catalyst. The hardness of coatings with ESBO is adjustable by changing the epoxy/polyol ratio, using harder polyols and harder epoxy resins. 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| identifier | ISSN: 0361-8773 |
| ispartof | Journal of coatings technology, 2000-10, Vol.72 (909), p.125-133 |
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| language | eng |
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| subjects | Applied sciences Bisphenol A Chemicals Coatings. Paints, varnishes and inks Components, formulation Epoxy resins Exact sciences and technology Fatty acids Flexibility Phosphate esters Polymer industry, paints, wood Polymerization Solvents Soybeans Suppliers Surfactants Vegetable oils Viscosity |
| title | Cationic, thermally cured coatings using epoxidized soybean oil |
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