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Mechanical and swelling properties of HTPB-based copolyurethane networks

Jain, SR and Sekkar, V and Krishnamurthy, VN (1993) Mechanical and swelling properties of HTPB-based copolyurethane networks. In: Journal of Applied Polymer Science, 48 (9). pp. 1515-1523.

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Copolyurethanes of hydroxy terminated polybutadiene (HTPB) and ISRO–Polyol (ISPO), an indigenously developed castor-oil based polyol, have been prepared using toluene diiso-cyanate and hexamethylenediisocyanate. The mechanical strength and swelling characteristics of the copolyurethanes cured with trimethylol propane and triethanolamine have been studied to evolve improved solid propellant binders. By varying the ratios of the two hydroxy pre-polymers, chain extenders, and crosslinkers, copolyurethanes having a wide range of tensile strength and elongation could be obtained. Many of these systems are desirable for their use as propellant binders. The results have been explained in terms of the measured crosslink densities and other swelling properties. © 1993 John Wiley & Sons, Inc.

Item Type: Journal Article
Publication: Journal of Applied Polymer Science
Publisher: John Wiley and Sons
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 11 Feb 2011 09:48
Last Modified: 11 Feb 2011 09:48
URI: http://eprints.iisc.ac.in/id/eprint/35536

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