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Investigation of an Optimum Concentration for Nano-Silica Used as an Adhesive Bonding Strength Enhancer

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Abstract

In this paper, the effect of silica nanoparticles (nano-silica) on the bonding strength of reinforced adhesive joints was experimentally studied in five concentrations. A two-part epoxy-based adhesive (Araldite 2015) was used to bond the adherends as well as silica nanoparticles for strengthening purposes. Nano-silica was added into the adhesive by 1, 1.5, 2, 2.5 and 3 wt.%. Some adhesive joints with and without nanoparticles were tested under uniaxial loading to obtain their bonding strength. The results showed that the change in the bonding strength is a function of nanoparticles concentration. Furthermore, it was concluded that the addition of silica nanoparticles has a suitable effect on the joint strength at an optimum point, in which the joint strength takes its maximum value, and a further increase in the nanoparticles weight fraction causes the joint strength to decrease.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran

    Soran Hassanifard & Bahman Paygozar

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  1. Soran Hassanifard
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  2. Bahman Paygozar
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Correspondence to Bahman Paygozar.

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Hassanifard, S., Paygozar, B. Investigation of an Optimum Concentration for Nano-Silica Used as an Adhesive Bonding Strength Enhancer. J Fail. Anal. and Preven. 18, 315–321 (2018). https://doi.org/10.1007/s11668-018-0413-9

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  • DOI: https://doi.org/10.1007/s11668-018-0413-9

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