Obtenção, caracterização e prospecção de aplicações industriais de elastômero fundível de poliuretana curado com trietanolamina

Abstract

Polyurethanes form a class of polymeric materials that have a range of industrial applications. They are versatile, especially because they have different molecular structures, with different functional groups, which determine special properties, some of which are unique to these materials. A particularly important type of polyurethanes are fusible elastomers, which have high durability and which have properties dependent on the type of curing agent (chain extender) used in their processing. Curing with MOCA (methylene-bis-ortho-chloro-aniline), for example, which is an aromatic amine, gives the material a segmented morphology, with rigid and flexible domains. On the other hand, diols and triols, such as triethanolamine (TEA), can also be used in curing, providing other structures and properties. In this work, the properties of an elastomer cured with TEA will be verified and compared with the cure with MOCA, in terms of tensile strength, hardness and results of instrumental analysis (IR, XRD) and thermal (DSC and TGA), in addition to intending to raise industrial applications for the material cured with TEA, depending on its properties.