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



Document title: Characterization of the curing agents used in epoxy resins with TG/FT-IR technique
Journal: Polimeros (Sao Carlos)
Database: PERIÓDICA
System number: 000314284
ISSN: 1678-5169
Authors: 1
2




Institutions: 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
Year:
Season: Ene-Mar
Volumen: 16
Number: 1
Pages: 94-98
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract 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
Disciplines: Ingeniería
Keyword: 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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