Improvement of Fracture Toughness of Epoxy Resins at Cryogenic Temperature

Nishijima, Shigehiro; Yamada, Kanji; Hussain, Manwar; Nakahira, A.; Honda, Yoshihide; Okada, T.; Niihara, Koichi

doi:10.1007/978-1-4757-9059-7_3

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1996

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“…The mechanical properties of these nanocomposites based on epoxy matrices at cryogenic temperature have been also found to be superior to those of epoxy itself. [9].…”

Section: Introductionmentioning

confidence: 95%

Molecular State and Mechanical Properties of Epoxy Hybrid Composite

Hussain¹,

Nishijima

Nakahira

et al. 1996

MRS Proc.

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A hybrid nanocomposite was prepared from the combination of an epoxy resin with a dispersion of nanometer-sized silica particles prepared by hydrolysis of silicon tetra alkoxides A silane coupling agent was used to improve the filler-matrix interface by crosslinking into the epoxy networks. Silica dispersion caused the increase of nanometer size voids evaluated by the positron annihilation method and the decrease of Vickers hardness. The use of coupling agent also brought about the decrease of nanometer size voids and the increase in hardness.

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“…The mechanical properties of these nanocomposites based on epoxy matrices at cryogenic temperature have been also found to be superior to those of epoxy itself. [9].…”

Section: Introductionmentioning

confidence: 95%