T. A. Brusentseva , E. O. Smirnova, I. A. Veretennikova
STYDYING THE INFLUENCE OF THE NATURE OF THE FILLER ON THE MECHANICAL PROPERTIES OF THE DER-330 EPOXY RESIN
DOI: 10.17804/2410-9908.2018.6.027-036 The purpose of this paper is to investigate the effect of the nature of various fillers on the mechanical properties of the DER-330 epoxy resin. The A-380 and A-200 hydrophilic silica powders, alumina-based powders in the form of spherical particles and nanofibers, and aluminum nitride powder are used as fillers. The mass content of nanoadditives in the matrix ranges from 0 to 4 %. In the first series of experiments, the influence of the nature of the filler on the mechanical properties of the DER-330 epoxy resin under conditions of three-point bending is investigated. In the second part of the study, the influence of the nature of the filler on the hardness and the normal modulus of elasticity is investigated by the microindentation method. It has been experimentally established that the investigated solid nanopowders reinforce the epoxy resin provided that they are nanosized, effectively dispersed and uniformly distributed in the matrix. In addition, for each filler, there is an optimal content enabling the material to exhibits maximum strength characteristics.
Acknowledgements: The work was performed within state assignment No. АААА-А17-117030610134-9 (specimen preparation and experimenting under conditions of three-pint bending) and supported by RFBR grant No. 16-08-01154 А (indentation experiments). Keywords: epoxy resin, nanofiller, modulus of elasticity, stress at failure, microindentation Bibliography:
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ИССЛЕДОВАНИЕ ВЛИЯНИЯ ПРИРОДЫ НАПОЛНИТЕЛЯ НА МЕХАНИЧЕСКИЕ ХАРАКТЕРИСТИКИ ЭПОКСИДНОЙ СМОЛЫ DER-330
Исследовано влияние природы различных наполнителей на механические характеристики эпоксидной смолы DER-330. В качестве наполнителей использованы гидрофильные порошки оксида кремния А-380 и А-200, порошки на основе оксида алюминия в виде сферических частиц и нановолокон, порошок нитрида алюминия. Массовое содержание нанодобавок в матрице варьировалось от 0 до 4 %. В первой серии экспериментов исследовано влияние природы наполнителя на механические характеристики эпоксидной смолы DER-330 в режиме трехточечного изгиба. Во второй части работы методом микроиндентирования исследовано влияние природы наполнителя на твердость и нормальный модуль упругости. Экспериментально установлено, что исследуемые твердые нанопорошки усиливают эпоксидную смолу при условии, что они имеют наноразмеры, эффективно диспергированы и однородно распределены в матрице. Кроме того, для каждого наполнителя существует оптимальное содержание, при котором материал проявляет максимальные прочностные характеристики.
Благодарности: Работа выполнена в части изготовления образцов и проведения экспериментов в режиме трехточечного изгиба в рамках государственного задания № АААА-А17-117030610134-9, в части проведения экспериментов по индентированию – при поддержке гранта РФФИ № 16-08-01154 А. Ключевые слова: эпоксидная смола, нанонаполнитель, модуль упругости, напряжение при разрушении, микроиндентирование Библиография:
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Библиографическая ссылка на статью
Brusentseva T. A., Smirnova E. O., Veretennikova I. A. Stydying the Influence of the Nature of the Filler on the Mechanical Properties of the Der-330 Epoxy Resin // Diagnostics, Resource and Mechanics of materials and structures. -
2018. - Iss. 6. - P. 27-36. - DOI: 10.17804/2410-9908.2018.6.027-036. -
URL: http://dream-journal.org/issues/2018-6/2018-6_208.html (accessed: 20.04.2024).
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