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Исследование влияния нанодисперсных частиц на механические свойства гетерогенного материала

Исследование влияния нанодисперсных частиц на механические свойства гетерогенного материала

Abstract

The paper presents the experimental and theoretical study of the behavior of fracture of the composite based on ED-20 epoxy-diane resin filled with nanoparticles of silicon dioxide Tarkosil. The composite is modeled as a three-phase continuum: epoxy adhesive, the nanopowder and air bubbles. The elastic moduli and Lame coefficients have been determined as a function of various concentrations of the nanopowder. Experiments have shown that doping by Tarkosil (up to 12%) increases Young modulus by 23%. Concentrations of the nanosized powder of silicon dioxide in excess of 12% deteriorate the strength and elasticity of the epoxy composite because of the high concentration of air bubbles.

Экспериментально и теоретически исследуется поведение при разрушении композита на основе эпоксидно-диановой смолы ЭД-20, наполненной наночастицами диоксида кремния таркосил. Композит моделировали как трехфазную сплошную среду: эпоксидного клея, нанопорошка и пузырьков воздуха. Получена зависимость модулей упругости и коэффициентов Ламе от различной концентрации нанопорошка. Эксперименты показали, что добавки таркосила (до 12%) повышают модуль Юнга на 23%. При добавлении наноразмерного порошка диоксида кремния более 12% по объему прочность и упругость эпоксидного композита начинает падать из-за высокой концентрации пузырьков воздуха.

Keywords

НАНОПОРОШОК, ЭПОКСИДНО-ДИАНОВАЯ СМОЛА ЭД-20, МОДУЛЬ ЮНГА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze