Epoxy Nanocomposites

Иржак, Т. Ф.; Иржак, В. И.

doi:10.1134/s0965545x17060049

Cited by 25 publications

(12 citation statements)

References 238 publications

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“…6 To improve the fracture toughness of epoxy, various nano-reinforcements have been investigated. 7 For example, typical nano-reinforcements involve zero-dimensional nanoparticles, such as titanium dioxide (TiO 2 ) and silica (SiO 2 ), 8,9 one-dimensional nanofibers, such as carbon nanotubes (CNTs), 10 and two-dimensional nanoplatelets, such as nanoclay and graphene. [6][7][8][9][10][11][12][13] Although these nanofillers can improve the fracture toughness of epoxy, many processing problems remain unsolved.…”

Section: Introductionmentioning

confidence: 99%

“…7 For example, typical nano-reinforcements involve zero-dimensional nanoparticles, such as titanium dioxide (TiO 2 ) and silica (SiO 2 ), 8,9 one-dimensional nanofibers, such as carbon nanotubes (CNTs), 10 and two-dimensional nanoplatelets, such as nanoclay and graphene. [6][7][8][9][10][11][12][13] Although these nanofillers can improve the fracture toughness of epoxy, many processing problems remain unsolved. 14,15 For example, a small amount of TiO 2 improves the fracture toughness of epoxy by crack deflection and crack pinning, yet agglomeration of the TiO 2 nanoparticles limits further improvement of the fracture toughness.…”

Section: Introductionmentioning

confidence: 99%

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Inverse Nacre-like Epoxy-Graphene Layered Nanocomposites with Integration of High Toughness and Self-Monitoring

Peng

Huang

Cao

et al. 2020

Matter

107

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Inverse nacre-like epoxy-graphene layered nanocomposites inspired by nacre are fabricated via freeze casting. The epoxy-graphene nanocomposites show a toughening mechanism that incorporates crack deflection, branching, and interfacial friction, exhibiting excellent fracture toughness. Furthermore, due to the conductive properties of the continuous graphene-based scaffold, crack propagation can be monitored by detecting variable electrical resistance. The inverse nacre-like epoxy-graphene nanocomposites expand the application of traditional epoxy-graphene nanocomposites in the engineering design of wind devices and in the automotive industry, aerospace, and many other areas. In addition, the nanocomposite's ability to detect cracks could inspire the design of future nanocomposites with self-monitoring capabilities, thus making them more safe and secure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inverse Nacre-like Epoxy-Graphene Layered Nanocomposites with Integration of High Toughness and Self-Monitoring

Peng

Huang

Cao

et al. 2020

Matter

107

View full text Add to dashboard Cite

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“…Among polymer nanocomposites, it would appear that composites based on an epoxy matrix occupy an insignificant place-nearly 10% as to the number of publications-but an ever-increasing number of papers appear annually. Moreover, the interest in them grows almost exponentially, as evidenced by the number of citations [2].…”

Section: Introductionmentioning

confidence: 99%

“…They possess marked thermal stability and heat resistance. Many solid surfaces form strong adhesive bonds with epoxy polymers [2,3]. This circumstance determines their use as compounds, glues, paint and lacquer materials, and coatings, including in aerospace engineering.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Features of Synthesis of Epoxy Nanocomposites

Иржак¹

2020

Nanorods and Nanocomposites

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Kinetic features of the formation of epoxy nanocomposites with carbon (nanotubes, graphene, and graphite), metal-containing, and aluminosilicate (montmorillonite and halloysite) fillers are considered. In contrast to linear polymers, epoxy nanocomposites are obtained only via the curing of epoxy oligomers in the presence of filler or the corresponding precursor. These additives may affect the kinetics of the process and the properties of the resulting matrix. A high reactivity of epoxy groups and a thermodynamic miscibility of epoxy oligomers with many substances make it possible to use diverse curing agents and to accomplish curing reactions under various technological conditions. The mutual effect of both a matrix and nanoparticles on the kinetics of the composite formation is discussed.

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“…В них рассмотрены различные технологии введения УНТ в полимеры и суммированы результаты, достигнутые в улучшении как упруго-прочностных характеристик, так и других функциональных свойств материалов: электропроводности, водо-и газопроницаемости, термической стабильности и пр. [3][4][5][6][7][8][9][10][11][12][13][14]. Большие усилия приложены также к разработке моделей микромеханики для описания упругопрочностных свойств композитов с короткими волокнами, которым посвящены обзоры [1,2,4,10,12,14].…”

Section: Introductionunclassified

Эффективность Применения Углеродных Нанотрубок Для Упрочнения Конструкционных Полимеров

Крестинин¹

2020

Rossijskie nanotehnologii

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Введен показатель эффективности использования углеродных нанотрубок (УНТ) в нанокомпозите как отношение нагрузки, которую несут нанотрубки при заданной средней деформации матрицы, к максимально возможной нагрузке, которая может быть передана на нанотрубки при этой деформации. Проведен обзор наилучших опубликованных результатов по упрочнению полимеров с оценкой эффективности в них УНТ. Анализ данных, приведенных в литературе, показал, что в полимерах верхняя граница эффективности УНТ достигается, если внутри полимера образуется сетка связанных друг с другом нанотрубок. Такая сетка может формироваться путем интегрирования нанотрубок в полимерную матрицу через ковалентное связывание нанотрубок молекулярными мостиками либо за счет физических зацеплений нанотрубок между собой. В термопластичных кристаллизующихся полимерах верхняя граница эффективности УНТ достигается также за счет увеличения степени кристалличности и улучшения микроструктуры полимера, в том числе с применением ориентационной вытяжки нанокомпозита. Полимерные нанокомпозиты с УНТ можно считать перспективными для практического применения, если эффективность нанотрубок в них близка к верхнему пределу или превышает его.

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Epoxy Nanocomposites

Cited by 25 publications

References 238 publications

Inverse Nacre-like Epoxy-Graphene Layered Nanocomposites with Integration of High Toughness and Self-Monitoring

Inverse Nacre-like Epoxy-Graphene Layered Nanocomposites with Integration of High Toughness and Self-Monitoring

Kinetic Features of Synthesis of Epoxy Nanocomposites

Эффективность Применения Углеродных Нанотрубок Для Упрочнения Конструкционных Полимеров

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