Thermal Insulation Polyurethane Foams from a Green-Polyol and Containing Thermorregulating Microcapsules

M. Carmona, J.F. Rodríguez, A. Medino, A. Serrano, B. Talvera, I. Garrido, J.J. Cubillo
Acciona Infrastructures, ES

Keywords: green chemistry, thermal insulation, polyurethane foams, thermal energy storage, energy efficiency

Summary:

In this work, grape seed oil with a high content of unsaturated triglycerides was transformed to a polyol by reaction with peroxyacetic acid at 80 ºC, in the presence of H2SO4 as catalyst. Further, RPU foams were synthesized by reaction between this polyol with Methylene DiphenylDiisocyanate (MDI) and containing microcapsules synthesized in our facilities in a semi-industrial plant of spray drying. These microcapsules have a thermal energy storage (TES) capacity of 85.81 J/g and an average particle size lower than 10 microns.