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Materials 2017, 10(10), 1135; doi:10.3390/ma10101135

Effect of Zirconia Nanoparticles in Epoxy-Silica Hybrid Adhesives to Join Aluminum Substrates

Graduated Studies in Science and Engineering of Materials, Universidad Autónoma Metropolitana-Azcapotzalco, Ave. San Pablo 180, Col Reynosa CP 02200, Mexico
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Received: 9 August 2017 / Revised: 7 September 2017 / Accepted: 20 September 2017 / Published: 27 September 2017
(This article belongs to the Section Advanced Composites)

Abstract

This research presents the interaction of the epoxy polymer diglicydil ether of bisphenol-A (DGEBA) with silica (SiO2) nanoparticles plus zirconia (ZrO2) nanoparticles obtained via the sol-gel method in the synthesis of an epoxy-silica-zirconia hybrid adhesive cured with polyamide. ZrO2 nanoparticles were added to the epoxy-silica hybrid adhesive produced in situ to modify the apparent shear strength of two adhesively bonded aluminum specimens. The results showed that the addition of different amounts of ZrO2 nanoparticles increased the shear strength of the adhesively bonded aluminum joint, previously treated by sandblasting, immersion in hot water and silanized with a solution of hydrolyzed 3-glycidoxipropyltrimethoxysilane (GPTMS). The morphology and microstructure of the nanoparticles and aluminum surfaces were examined by scanning electron microscopy (SEM), and elemental analysis was performed with the Energy-dispersive X-ray spectroscopy (EDS) detector; the chemical groups were investigated during the aluminum surface modification using Fourier transform infrared spectroscopy (FTIR). View Full-Text
Keywords: hybrid adhesive; aluminum substrate; sol-gel treatment; shear strength; zirconia nanoparticles; silica nanoparticles hybrid adhesive; aluminum substrate; sol-gel treatment; shear strength; zirconia nanoparticles; silica nanoparticles
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Figueroa-Lara, J.J.; Torres-Rodríguez, M.; Gutiérrez-Arzaluz, M.; Romero-Romo, M. Effect of Zirconia Nanoparticles in Epoxy-Silica Hybrid Adhesives to Join Aluminum Substrates. Materials 2017, 10, 1135.

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