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Liquid rubber epoxy blends for Inhibition of Composite Propellants
Author(s) -
Agrawal J. P.,
Gupta D. C.,
Chouk M. P.,
Khare Yogesh
Publication year - 1993
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19930180308
Subject(s) - composite number , materials science , ultimate tensile strength , composite material , propellant , epoxy , curing (chemistry) , natural rubber , polybutadiene , polymer chemistry , polymer , chemistry , organic chemistry , copolymer
Liquid rubbers, i.e. polysulphide (PS) and polybutadiene‐acrylic acid‐acrylonitrile (PBAN) have been blended with Dobeckot E‐4 (commercial novolak epoxy resin) in different proportions. These systems have been cured using polyamine/polyamide curing agents and were characterized using gel time, % elongation, tensile strength and bond strength with composite propellants, heat resistance, dioctyl adipate(DOA) absorption, oxygen index, thermal conductivity and brittleness temperature. The data generated for various characteristics indicate that the formulations E‐PS‐9 and E‐PBAN‐2 are promising inhibition systems for composite propellants. The inhibition of composite propellants has been done with rayon thread impregnated with the formulations E‐PS‐9 and E‐PBAN‐2 using filament winding technique. The successful static evaluation of inhibited composite propellants at ambient, elevated and sub‐zero temperatures proves the suitability of these systems for inhibition.