Latin American applied research
versão impressa ISSN 0327-0793
The production of rigid polyurethane foams is made varying the soy-based polyol percentage between 20 and 30% into the formulation. Four blocks of foam are obtained using two oleochemicals polyols from ethanol and ethylenglycol (with funcionalities of 2 and 6, respectively). The foams were characterized by thermal and mechanic tests finding a conductivity value between 0.022-0.026 W/mK and a compressive strength of 15-20 psi, comparables with the commercial specifications and showing the obtained product as appropriate PU foam for industrial applications.
Palavras-chave : Polyurethane; Rigid Foams; Oleochemical Polyester Polyols; Soy-Based Polyols; Ethylene Glycol.