Study of the Impact Viscosity of the Epoxy Composite Modified Technical Carbon

Abstract:

This article discusses effect of filler concentration on impact strength of an epoxy resin composite. The optimal ratio of resin and hardener is defined. Research of the effect of the concentration of the filler - carbon black P505 on the impact strength of a composite material based on epoxy resin ED-20 is made. According to the results of the study, it is shown that with an increase of concentration of the filler from P505 carbon black, the toughness decreases. Fractographic studies of the fracture surfaces of composites were also carried out, which indicate that the introduction of a filler leads to a decrease in the surface energy of destruction. Thus, studies of epoxy composite modified with technical carbon grade P505 showed a decrease in impact strength up to 4 times, depending on the increase in the mass fraction of the filler.

• Periodical: Materials Science Forum (Volume 992)
• Pages: 285-289
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.992.285
• Online since: May 2020
• Authors: S.V. Vasiliev, Yu.Yu. Fedorov, A.V. Savvina*
• Keywords: ED-20, Epoxy Resin, Failure Surface, Impact Strength, Technical Carbon

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