Influence of Silicate Surface Modification on Morphology and Mechanical Properties of Nylon6/Clay Nanocomposites


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A new method was attempted to improve the interaction between nylon 6 with a commercially available organoclay, Cloisite®25A (C25A) through modification of C25A with 3-aminopropyltriethoxy silane, 3-(trimethoxysilyl)propyl methacrylate, 3-(glycidoxypropyl) trimethoxysilane and 3-isocyanate propyltriethoxy silane. C25A and C25A modified with the silane compounds(TFC) were melt mixed with nylon 6. X-Ray diffraction and transmission electron microscopy images revealed that all the TFC layers were fully exfoliated in nylon 6 matrix irrespectively of the type of the silane compounds used for the modification. Tensile properties of nylon 6 were most significantly improved when 3-(glycidoxypropyl)trimethoxysilane modified C25A was incorporated. The chemical reaction between the epoxy groups and the end groups of nylon 6 raised the interfacial interaction and thus was responsible for the enhanced tensile properties.



Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang




J. H. Shim et al., "Influence of Silicate Surface Modification on Morphology and Mechanical Properties of Nylon6/Clay Nanocomposites", Key Engineering Materials, Vols. 334-335, pp. 877-880, 2007

Online since:

March 2007




[1] H. Golden, H. Deng, F.J. DiSalvo, J.M. J Frecht and P. M Thompson: Science 268 (1995), p.1463.

[2] M. Laus, O. Francescangeli and F. Sandrolini: J. Mater. Res. 12 (1997), p.3134.

[3] E.P. Giannelis: Chem. Mater. 2 (1990), p.627.

[4] P.B. Messersmith and E. P Giannelis: Chem. Mater. 5 (1993), p.1064.

[5] J. C. Dai and J. T. Huang: Appl. Clay Sci. 15 (1999), p.51. Figure 5. Schematic illustration of the reaction between the end groups of nylon6 and the epoxy groups on the silicate surface.