Dynamic mechanical properties for polyurethane elastomers applied in elastomeric mortar

• Published in: Journal of applied polymer science Vol. 126; no. 4; pp. 1461 - 1467
• Main Authors: Rocco, José Atílio Fritz Fidel, Lima, José Eduardo Salgueiro, Lourenço, Vera Lúcia, Batista, Natássia Lona, Botelho, Edson Cocchieri, Iha, Koshun
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.11.2012; Wiley; Wiley Subscription Services, Inc
• Subjects: Amines; Application fields; Applied sciences; Cures; Dynamic mechanical properties; dynamic mechanical thermal analysis; Elastomers; ETHACURE; Ethers; Exact sciences and technology; Liquids; Materials science; Mortars; Polymer industry, paints, wood; Polymers; polyurethane elastomer; Polyurethane resins; Technology of polymers; Viscoelasticity; ETHACURE; dynamic mechanical thermal analysis; Temperature effect; Thermoplastic rubber; Crosslinking; Ether polymer; Experimental study; Property processing relationship; Polyurethane elastomer; 300; Dynamic mechanical properties; Aliphatic polymer; Crosslinked polymer; Mechanical loss; Etherurethane polymer; Aromatic amine; Butene oxide polymer; Elastomeric sealant; Rheological properties
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.36847

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