Dynamic mechanical properties for polyurethane elastomers applied in elastomeric mortar
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Data
2012-11-15
Autores
Fritz Fidel Rocco, Jose Atilio
Salgueiro Lima, Jose Eduardo
Lourenco, Vera Lucia
Batista, Natassia Lona
Botelho, Edson Cocchieri [UNESP]
Iha, Koshun
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Editor
Wiley-Blackwell
Resumo
Dynamic mechanical properties of a polyurethane (PU) elastomer and a mortar processed with the same elastomer (modified polytetramethylene ether glycol (PTMEG)) were studied. The results obtained showed that the liquid aromatic amine ETHACURE (R) 300, used as cure agent, can be used to substitute the aromatic amine MOCA (R), which is usually used as cure agent in high performance elastomers. The resulting mortar produced with ETHACURE (R) 300 presents similar dynamic-mechanical thermal properties when compared with MOCA (R). However, dynamic-mechanical thermal analysis studies showed that the mortar developed with ETHACURE (R) 300 presents some advantages such as the low values of tan d, indicating a good capacity of recovery of the strain after retreating an applied force. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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dynamic mechanical thermal analysis, ETHACURE (R), 300, polyurethane elastomer
Como citar
Journal of Applied Polymer Science. Hoboken: Wiley-blackwell, v. 126, n. 4, p. 1461-1467, 2012.