Dynamic mechanical properties for polyurethane elastomers applied in elastomeric mortar |
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| Authors: | José Atílio Fritz Fidel Rocco José Eduardo Salgueiro Lima Vera Lúcia Lourenço Natássia Lona Batista Edson Cocchieri Botelho Koshun Iha |
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| Affiliation: | 1. Departamento de Química do Instituto Tecnológico de Aeronáutica‐ITA, Pra?a Mal. Eduardo Gomes, 50 Vila das Acácias, CEP 12228‐901, S?o José dos Campos, Sao Paulo, Brasil;2. Divis?o de Química do Instituto de Aeronáutica e Espa?o‐IAE, Pra?a Mal. Eduardo Gomes, 50 Vila das Acácias, CEP 12228‐901, S?o José dos Campos, Sao Paulo, Brasil;3. Departamento de Materiais e Tecnologia, Faculdade de Engenharia, UNESP, Av. Ariberto Pereira da Cunha 333, CEP 12500.000, Guaratinguetá, Sao Paulo, Brasil |
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| Abstract: | 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® 300, used as cure agent, can be used to substitute the aromatic amine MOCA®, which is usually used as cure agent in high performance elastomers. The resulting mortar produced with ETHACURE® 300 presents similar dynamic‐mechanical thermal properties when compared with MOCA ®. However, dynamic‐mechanical thermal analysis studies showed that the mortar developed with ETHACURE® 300 presents some advantages such as the low values of tan δ, indicating a good capacity of recovery of the strain after retreating an applied force. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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| Keywords: | dynamic mechanical thermal analysis ETHACURE® 300 polyurethane elastomer |
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