Epoxy Nanocomposites Containing Silver Nanoparticles with Oligostyrylcarboxylate LigandsстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
Аннотация:Abstract—The regularities of the formation, as well as the structure and properties of the epoxy nanocompositessynthesized via curing with 4,4′-diaminodiphenylmethane and triethylamine of the ED-20 epoxy bindersmodified by spherical small (r ~ 2 nm) narrowly dispersed silver nanoparticles with oligostyrylmono-carboxylateligands were studied by SEM, UV–Vis spectroscopy, and DSC methods. The limiting initial concentrationof silver oligostyrylmonocarboxylate in the modified binder, which affords uniform distribution of thesilver nanoparticles (r ~ 8–20 nm) in the nanocomposites, was estimated at 2.5 wt %. The silver nanoparticlescause a slight decrease in the glass transition temperature and do not affect the mechanical characteristics ofthe epoxy nanocomposites. The thermophysical characteristics of the nanocomposites depend on the topologyof the epoxy matrix.