Epoxy resins based on aromatic glycidylamines. V. Shelf life of TGDDM-based epoxy resins |
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| Authors: | &#x; Podzimek I Dob&#x; M Kubín |
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| Affiliation: | ?. Podzimek,I. Dobá?,M. Kubín |
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| Abstract: | The effect of aging on resin composition was investigated as a part of a study concerned with the evaluation of epoxies containing N, N, N′, N′-tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM). Long-term stability of three different epoxy resins based on TGDDM and their mixtures with 4,4′-diaminodiphenylsulfone (DDS) was followed at 23 ± 2°C at a relative humidity ranging from 45% to 55%, by means of GPC and HPLC; short-term stability of the resins was evaluated at 125°C. |
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