Effect of the Addition of a Brazilian Sodium Smectite Clay in Toughened Nylon-6

Abstract:

In this work, the effect of the incorporation of a sodium smectite clay (Brasgel) in Nylon-6 toughened with Poly (vinyl butyral) film (PVB film) was evaluated. The composites contain 60 wt.% of Nylon-6, 40 wt.% of PVB film and 5 wt.% of clay, relative to the total weight of the mixture. The clay was previously purified by sedimentation, and dried in a spray-dryer at 150°C. The composites were obtained by extrusion, in two steps: step 1 - mixture of nylon-6 with clay (called master of nylon-6) and step 2 - mixture of master of nylon-6 with PVB film. The clay was characterized by X-ray diffraction and X-rayfluorescence. The composites were characterized by mechanical tests (tensile and notched Izod impact strength), X-ray diffraction and scanning electron microscopy (SEM). The composites showed significant increase in the values of the notched Izod impact strength, when compared to the ones for pure nylon-6, and kept the stiffness of the matrix phase.

• Periodical: Materials Science Forum (Volumes 798-799)
• Pages: 743-746
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.798-799.743
• Online since: June 2014
• Authors: Douglas Morais*, Nicole Raymonde Demarquette, Ticiane Sanches Valera
• Keywords: Clay, Nanocomposite, Toughened Blends

References

[1] J.Y. Cha, C.H. Lee and S. Choe: Journal of Applied Polymer Science Vol. 67 (1998), p.1531.

[2] C.H. Lee, J.Y. Cha and S. Choe: Journal of Industrial and Engineering Chemistry Vol. 4 (2) (1998), p.161.

[3] J.Y. Cha, C.H. Lee and S. Choe: Journal of Industrial and Engineering Chemistry Vol. 4 (1997), p.257.

[4] S.C. Tjong, S.A. Xu and Y.W. Mai: Materials Science & Engineering A Vol. 347 (2003), p.338.

[5] T.J. Kang and S.D. Hwang: Polymers & Polymers Composite Vol. 4 (1996), p.217.

[6] S. Wu: Polymer Engineering and Science Vol. 30 (13) (1990), p.753.

[7] L. A Utracki: Polymer alloys and blends: thermodynamics and rheology. (Munich Hanser, 1989).

[8] T.S. Valera and N.R. Demarquette: European Polymer Journal Vol. 44 (2007), p.755.

[9] C.B. Bucknall: Toughened plastics. (Applied Science Londres, 1977).

[10] D.M. Laura, H. Keskkula, J.W. Barlow and D.R. Paul: Polymer Vol. 41 (2000), p.7165.

[11] W.G. Perkins: Polymer Engineering and Science Vol. 39 (1999), p.2445.

[12] V. Khoshkava, M. Dini and H. Nazockdast: Journal of Applied Polymer Science Vol. 125 (2012), p.197.

[13] Y. Yoo, C. Park, S.G. Lee, K.Y. Choi, D.S. Kim and J.H. Lee: Macromol. Chem. Phys Vol. 206 (2005), p.878.

[14] S.C. Tjong, S.A. Xu and Y.W. Mai: Journal of Materials Science Vol. 38 (2007), p.207.

[15] L. Százdi, A. Poosgay and B. Pukánszky: European Polymer Journal Vol. 43 (2010), p.345.