Open AccessСинергический эффект гибридного наполнителя на основе графеновых нанопластин и многостенных нанотрубок для повышения теплопроводности эпоксидного композита
Author(s) -
Т.А. Шалыгина,
А.В. Мележик,
А.Г. Ткачев,
С.Ю. Воронина,
В.Д. Ворончихин,
А.Ю. Власов
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.07.50789.18609
Subject(s) - graphene , carbon nanotube , materials science , epoxy , thermal conductivity , filler (materials) , composite number , composite material , percolation threshold , percolation (cognitive psychology) , nanotechnology , electrical resistivity and conductivity , engineering , electrical engineering , neuroscience , biology
A hybrid heat-conducting filler based on graphene nanoplates and multi-walled nanotubes was obtained to increase the thermal conductivity of an epoxy binder, exhibiting a synergistic effect. This effect is achieved due to the embedding of multi-walled nanotubes between graphene nanoplates and the formation of effective percolation networks in the composite. The dependence of an increase in the thermal conductivity of an epoxy composite on the mass ratio of graphene nanoplates and multi-walled nanotubes in a mixture of a hybrid filler has been established. The effect of the hybrid filler concentration in the epoxy matrix and the mixing method of graphene nanoplates and multi-walled nanotubes on the thermal conductivity of the composite was found. A synergistic effect between graphene nanoplates and multi-walled nanotubes has been demonstrated, leading to a sixfold increase in the thermal conductivity of epoxy composites at a filler concentration of 5 wt%.