Mechanical Properties of Epoxy Clay Nanocomposites


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Achievement of exfoliated structure of polymer/ Clay nanocomposites is of particular interest for the improvement of mechanical properties. In this work, the morphology and mechanical properties of epoxy/ clay nanocomposites has been investigated. Diglycidyl ether of bis-phenol A (DGEBA) epoxy resin (EPON828) and Jeffamine D400 curing agent was used. To obtain perfect dispersion, nanoclay (Cloisite 30B) was sonicated in acetone. The mixture was then mixed with polymer. Afterwards, the curing process was performed by addition of curing agent and degassing. Disappearing of peaks in X-Ray diffraction patterns of nanocomposites containing less than 5wt% nanoclay, is a good evidence of perfect dispersion of layered silicates in matrix, i.e. formation of exfoliated morphology. Based on tensile test results, it is deduced that as the amount of nanoclay increases, the elastic modulus and elongation at break of the nanocomposites containing 1wt% and 5wt% nanoclay increases by 12% and 31%, respectively. Therefore, obtaining perfect dispersion of layered silicates in epoxy matrix and exfoliated morphology, results in better mechanical properties of the nanocomposites.



Advanced Materials Research (Volumes 123-125)

Edited by:

Joong Hee Lee




S. Ghafarloo and M. Kokabi, "Mechanical Properties of Epoxy Clay Nanocomposites", Advanced Materials Research, Vols. 123-125, pp. 145-148, 2010

Online since:

August 2010




[1] S. Pavlidou, C.D. Papaspyrides: Progress in Polymer Science Vol. 33 (2008), p.1119.

[2] H. Lee, K. Neville: Handbook of Epoxy Resins, (McGraw-Hill, New York 1982).

[3] W.B. Xu, S.P. Bao and P. Sh. He: Journal of Applied Polymer Science Vol. 84 (2002), p.842.

[4] L. Jiankun, K. Yucai and Q. Zongneng: Journal of Polymer Science: Part B: Polymer Physics Vol. 39 (2001), p.115.

[5] J.H. Park, S.C. Jana: Macromolecules Vol. 36 (2003), p.2758.

[6] JEFFAMINE® Amines as Curing Agents for Epoxy Resins in Composites, Technical Bulletin, Huntsman Co.

[7] I.M. Daniel, H. Miyagawa and E.E. Gdoutos: J. Society for Experimental Mechanics Vol. 43 (2003), p.348.

[8] B. Qi , Q.X. Zhang and M. Bannister: Composite Structures Vol. 75 (2006), p.514.

[9] F. Hussain, J. Chen and M. Hojjati: Materials Science and Engineering A. Vol. 445-446 (2007), p.467.

[10] V. Nigam, D.K. Setua and G.N. Mathur: Journal of Applied Polymer Science Vol. 93 (2004), p.2201.