Ajuste de las propiedades de mezclas de poliuretanos vehiculizados en agua

GASTÓN M. PASCUAL; ARANGUREN, M. I.; MUCCI, V.

Simposio; XVI SAP 2021, XVI Simposio Argentino de Polímeros; 2021

Gastón Pascual, M. I. Aranguren,Verónica Mucci, "Ajuste de las propiedades de mezclas de poliuretanos vehiculizados en agua", XVI Simposio Argentino de Polímeros, XVI SAP 2021, 01-03 Diciembre de 2021, Bahía Blanca.Waterborne polyurethanes have found an important niche in applications such as coatings and adhesives. The importance derivesfrom the versatility of polyurethanes in general and the ecological advantage of being dispersed in acqueous media. In this work,biobased formulations are used: in one of them, the polyol is castor oil (CO), while in the other one, the macrodiol is apolycaprolactone diol (PCL), and in both cases the internal emulsifier is tartaric acid (TA), a byproduct of the winery industry. Usinga simple blending technique, films were produced with different final properties dinamico-mechanical and optical that affected alsothe handling characteristics of the materials. Techniques such as FTIR, DSC, TGA, and contact angle were used in thecharacterization of the materials.