Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites  &  Effect of Water on Their Properties

D’Melo, D.; Sabnis, A.; Shenoy, M.; Kathalewar, M.

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Current Chemistry Letters

ISSN 1927-730x (Online) - ISSN 1927-7296 (Print) Quarterly Publication Volume 1 Issue 4 pp. 147-156 , 2012

Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties Pages 147-156 Download PDF

Authors: David D’Melo, Anagha Sabnis, M.A. Shenoy, Mukesh Kathalewar

DOI: 10.5267/j.ccl.2012.9.001

Keywords: Composites, Fillers, Mechanical Properties Polysaccharides, Thermosets

Abstract: Guar gum has seen extensive use in blends, however, its application as a filler in thermoset composites has as yet not been investigated. The effect of the addition of guar gum and its acetyl derivatives on the kinetics of water diffusion in unsaturated polyester composites was studied. The effect of water on the mechanical properties of the composites was studied with respect to the nature of filler, filler concentration and time of immersion. All the mechanical properties were observed to decrease on exposure to water. Further, it was observed that acetylated guar gum, with a degree of substitution of 0.21, showed the best mechanical properties, surpassing the other filled composites and that of the pure unsaturated polyester. Thus, acetylated guar gum showed promise as eco-friendly filler in composite formulation.

How to cite this paper

 D’Melo, D., Sabnis, A., Shenoy, M & Kathalewar, M. (2012). Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites  &  Effect of Water on Their Properties.Current Chemistry Letters, 1(4), 147-156.

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