エポキシ樹脂の硬化に関する研究-4-異節環および芳香族第三アミンによるエポキシ樹脂の硬化

概要

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The rate of crosslinking reaction and the best curing conditions for epoxy resin curing with heterocyclic and aromatic tertiary amines have been studied by heat deflection temperature (HDT) technique. The lower the basicity of tertiary amines, the lower the rate of crosslinking reaction. Order of the rate of crosslinking reaction was as follows ; Alkyl tertiary amines >> Piperidine > α-Picoline > Pyridine > N, N-Dimethylaniline. The best curing conditions (e. g. the curing condition obtained the highest HDT) were 15 mol%, 21 mol%, and 30 mol% : for piperidine, α-picoline, and pyridine, respectively, at the curing temperature 90°C. The highest HDT in above conditions were 88°C, 115°C and 110°C for piperidine, α-picoline and pyridine, respectively. These HDT were nearly the same for that of alkyl tertiary amines, but were lower than that of other catalyst type curing agents such as BF3-amine complexes and imidazols.
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