Toughening Mechanism and the Application of Epoxy Adhesive Modified by Nano-SiO₂

Abstract:

Epoxy resin adhesives are widely used in various sectors, particularly in the aerospace and automotive industries. However, the solidification of the three-dimensional network structure of pure epoxy resin, which causes greater density and brittleness, results in poor system resilience. With the ultimate goal of improving the resilience of epoxy resin, nano-sized SiO₂ particles were introduced to improve the adhesion strength of both modified and unmodified epoxy adhesive. The results indicated increases of shearing strength from 16.66-Mpa to 18.01 -Mpa, impact strength from 15.4-kJ/m2 to 33.68-kJ/m2, and flexural strength from 70.5-Mpa to 80.94 Mpa.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 834-837
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.834
• Online since: May 2012
• Authors: Xi Wang, S. R. Zheng, R. M. Wang
• Keywords: Epoxy Resin (ER), Modified, Nano-SiO₂

References

[1] Service RF..Science,294 (5546),1448–9. (2001)

[2] Auer S, Frenkel D. J. Nature,413, (2001).711–3.

[3] Kozma L, Olefjord I. J. Mater Sci Technol 1987;3:954–62.

[4] Lapique F, Redford K. Int J. Adhes Adhes,22, (2002)337–46.

[5] Abraham G, Packirisamy S, Vijayan TM, Ramaswamy R. J. Appl Polym Sci 2003;88(7):1737–46.

[6] Lan T, Pinnavaia TJ. Chem Mater,6, (1994). 2216–9.

[7] Gilman JW, Kashiwagi T. SAMPE J,33, (1997)40–6.

[8] Erol Sancaktar, Jason Kuznicki. International Journal of Adhesion & Adhesives,31, (2011),286–300

[9] LI Bin, LI Xiu-li. Chemical Materials For Construction,19, (2003).38-40

[10] Van den Brand J, Van Gils S, Beentjes PCJ, Terryn H, Sivel V, de Wit JHW. Prog Org Coat,51, (2004).339–50.

DOI: 10.1016/j.porgcoat.2004.08.005

[11] Friedrich J, Kuhn G, Mix R, Fritz A, Schonhals A. Adhes Sci Technol,17, (2003). 1591–617.

[12] Hjertberg T, Lakso JE. Appl Polym Sci,37, (1989).1287–97.