Characterization of the curing agents used in epoxy resins with TG/FT-IR technique



Título del documento: Characterization of the curing agents used in epoxy resins with TG/FT-IR technique
Revue: Polimeros (Sao Carlos)
Base de datos: PERIÓDICA
Número de sistema: 000314284
ISSN: 1678-5169
Autores: 1
2




Instituciones: 1Instituto Tecnologico da Aeronautica, Centro Tecnico Aeroespacial, Sao Jose dos Campos, Sao Paulo. Brasil
2Instituto de Aeronautica e Espaco, Centro Tecnico Aeroespacial, Sao Jose dos Campos, Sao Paulo. Brasil
Año:
Periodo: Ene-Mar
Volumen: 16
Número: 1
Paginación: 94-98
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Samples of epoxy resin (EP) based on the diglycidyl ether of bisphenol A (DGEBA), cured with nadic methyl anhydride (NMA) and mercaptan (CAPCURE 3-800), or amine-phenol (CAPCURE EH-30), respectively, SE 4 and SE 5, were prepared in the stoichiometric ratio determined by the supplier. The curing behaviour of the epoxy systems SE 4 and SE 5 was followed by DSC (Differential Scanning Calorimetry). These SE and their ingredients were analyzed using FTIR transmission techniques (KBr pellets, pyrolysis without control and controlled pyrolysis-FT-IR, the CONTROLPIR/FT-IR) for characterizing the curing agents (CA). The temperature range used for samples pyrolysis was found from TG (thermogravimetry). Thus, the FT-IR bands of liquid pyrolysate obtained by CONTROLPIR/FT-IR were evaluated, in comparison to the reference spectrum of CA. The characterization of CA was also possible, by the analysis of such SE with the TG/FT-IR technique
Disciplinas: Ingeniería
Palabras clave: Ingeniería de materiales,
Ingeniería aeronáutica,
Resinas epóxicas,
Agentes de cura,
Pirólisis
Keyword: Engineering,
Materials engineering,
Aerospace engineering,
Epoxy resins,
Curing agents,
Pyrolysis
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