Effect of Particle Size and Concentration of Flyash on Properties of Polyester Thermoplastic Elastomer Composites


The performance of filled polymers is generally determined on the basis of the interface attraction of filler and polymers. Particulate filled polymer composites are becoming attractive because of their wide applications and low cost. In this study the effects of flyash with three varying particle size and filler concentrations (viz. 5 to 40 weight %) on the mechanical, thermal, electrical, rheological and morphological properties of polyester thermoplastic elastomer (Hytrel?) was investigated. Composites of polyester thermoplastic elastomer with varying concentrations of flyash were prepared by twin screw extrusion. Mechanical properties such as flexural strength and modulus increases with filler loading, where as tensile strength is found to be decrease with increase in flyash loading. Dielectric strength of composites also increases with flyash loading. Morphological studies revealed that there is good dispersion of filler in the polymer matrix. Thermal properties were found to be improved with flyash addition. Further, it was observed that the mechanical (flexural), thermal as well as electrical properties of composites improved with decrease in particle size of filler.

Share and Cite:

M. Sreekanth, V. Bambole, S. Mhaske and P. Mahanwar, "Effect of Particle Size and Concentration of Flyash on Properties of Polyester Thermoplastic Elastomer Composites," Journal of Minerals and Materials Characterization and Engineering, Vol. 8 No. 3, 2009, pp. 237-248. doi: 10.4236/jmmce.2009.83021.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Lowrence,E., Nielson., 1974, Particulate Composites, Mechanical properties of Polymers and Composites, Vol.2, ed.1, pp. 34-41, New York, Marcel Dekker.
[2] Katz,H.S; J.V Milevski, 1978, “Handbook of Fillers and Reinforcements for Plastics”, Vol.1, ed.1, pp. 301-316, New York, Van Notrand Reinhold.
[3] Walker,B.M., 1979, Polyester Thermoplastic Elastomer, Handbook of Thermoplastic Elastomer, Vol.1, ed.1, pp. 103-118, New York, Litton Education Publishing.
[4] Kaforglou,N.K., 1977, “Thermomechanical studies of semicrystalline polyether-ester copolymers” J.Appl Polym Sci, Vol. 21, pp. 543-554.
[5] Nagai,Y., Ogawa,T., Zhen,LY., 1997, “Analysis of weathering of thermoplastic elastomers" Polym. Degrad. Stab, Vol.56, pp. 115-121.
[6] Aso,O., Eguiazabal,J.I., Nazabal,J., 2007, “The influence of surface modification on the structure and properties of a nanosilica filled thermoplastic elastomer” Compo. Sci. Tech, Vol. 67, pp. 2854-2863.
[7] George, W., 1999, Flyash, Mica, Handbook of Fillers, Vol. 1, ed. 2, pp. 32, Toronto, New York, Chem Tech Publishing.
[8] Xuang,X., Hwang,J.Y., Gillis, J.M., 2003, “Processed Low NOx Fly Ash as a Filler in Plastics”, J.Min Mat .Char.& Engg, Vol. 2, No.1, pp. 11-31.
[9] Fen.Y.Y, Sheng.G.G, 2006, “Surface modification of purified fly ash and application in polymer”, J. Hazard. Mater., vol. 133 pp. 276–282
[10] Bose,S., Mahanwar,P.A., 2004, “Effect of flyash on the mechanical, thermal, dielectric, rheological and morphological properties of filled nylon-6” J.Min Mat .Char.& Engg, Vol. 3, No.1, pp. 23-31.
[11] Soyama.M, Inoue.K, 2007, “Flame retardancy of polycarbonate enhanced by adding fly ash” Polym. Adv. Tech. Vol. 18, pp. 386-391
[12] Menon.A.R.R, Sonia.T.A, 2006, “Studies on Fly-Ash-Filled Natural Rubber Modified with Cardanol Derivatives”, J Appl. Polym. Sci., Vol. 102, pp.4801–4808.
[13] Li.Y, White.D.J, 1998, “Composite material from fly ash and post-consumer PET”, Resources Conservation and Recycling, Vol. 24, pp. 87–93
[14] Joshi,A.D., 1993, “TPO vs PVC for automotive interior”, J. Coated Fabrics, Vol. 23, pp.67- 73.
[15] Parister,L.M., 1983, “Copolyester: The fuel resistant thermoplastic elastomer”, J. Elastomer & Plastics, Vol. 15, pp.146- 158.
[16] He,D., Jiang,B., 1993, “The elastic modulus of filled polymer composites”, J. Appl Polym Sci, Vol. 49, pp. 617-621.
[17] Gahleitener,M., Neibl,W., 1994, “Correlation between Rheological and mechanical properties of mineral filled polypropylene composites”, J. Appl Polym Sci, Vol. 53, pp. 283-289.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.