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

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 o...

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Main Authors: David D’Melo, Anagha Sabnis, M. A. Shenoy, Mukesh Kathalewar
Format: Article
Language:English
Published: Growing Science 2012-07-01
Series:Current Chemistry Letters
Subjects:
Online Access:http://www.growingscience.com/ccl/Vol1/ccl_2012_23.pdf
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author David D’Melo
Anagha Sabnis
M. A. Shenoy
Mukesh Kathalewar
author_facet David D’Melo
Anagha Sabnis
M. A. Shenoy
Mukesh Kathalewar
author_sort David D’Melo
collection DOAJ
description 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.
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spelling doaj.art-136a12a0e498498081670010422814f42022-12-21T22:36:44ZengGrowing ScienceCurrent Chemistry Letters1927-72961927-730X2012-07-0114147156Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their PropertiesDavid D’MeloAnagha SabnisM. A. ShenoyMukesh KathalewarGuar 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.http://www.growingscience.com/ccl/Vol1/ccl_2012_23.pdfCompositesFillersMechanical Properties PolysaccharidesThermosets
spellingShingle David D’Melo
Anagha Sabnis
M. A. Shenoy
Mukesh Kathalewar
Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
Current Chemistry Letters
Composites
Fillers
Mechanical Properties Polysaccharides
Thermosets
title Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
title_full Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
title_fullStr Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
title_full_unstemmed Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
title_short Preparation of Acetylated Guar Gum – Unsaturated Polyester Composites & Effect of Water on Their Properties
title_sort preparation of acetylated guar gum unsaturated polyester composites effect of water on their properties
topic Composites
Fillers
Mechanical Properties Polysaccharides
Thermosets
url http://www.growingscience.com/ccl/Vol1/ccl_2012_23.pdf
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