Low viscosity alkyd resins based on trimethylolpropane and Peruvian oil

• Autores: Obregón D., Toledo C., Hadzich A., Flores S.
• Formato: artículo
• Fecha de Publicación: 2021
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/2325
• Enlace del recurso: https://hdl.handle.net/20.500.12390/2325; https://doi.org/10.1007/s10965-021-02570-6
• Nivel de acceso: acceso abierto
• Materia: Viscosity; High solids alkyd; Pentaerythritol; Sacha inchi oil; Trimethylolpropane; http://purl.org/pe-repo/ocde/ford#2.07.03

The high-unsaturated fatty acid content of Sacha inchi oil (SIO), a perennial plant originally from Peru, has turned it into a potential raw material for the production of alkyd resins. In this study, different proportions of multifunctional polyols were used to prepare air-drying resins. Physicochemical characteristics (acid value, viscosity, colour, density, drying time, and hardness) of alkyds were evaluated. Moreover, FT-IR, TG–DTA, 1H-NMR and 13C-NMR characterization techniques were used. SIO-based alkyd resins prepared with trimethylolpropane exhibited low viscosities, suitable for preparing more manageable high solids protective coatings. © 2021, The Polymer Society, Taipei.