Influence of structure of polymeric fuels on the combustion behaviour of composite solid propellants

Kishore, K.; Sridhara, K.

doi:10.1016/0016-2361(96)00003-8

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…The cured polymer, in addition to being a fuel, acted as a binder for the particulate AP to achieve good mechanical properties. Among various types of catalysts, transition‐metal oxides, ferrocene, and ferrocene derivatives8–10 have been widely used to enhance the BRs of CSPs. A large number of polymeric ferrocene derivatives produced from different precursor monomers are also found in the literature 11, 12.…”

Section: Introductionmentioning

confidence: 99%

Burning‐rate enhancement of a high‐energy rocket composite solid propellant based on ferrocene‐grafted hydroxyl‐terminated polybutadiene binder

Saravanakumar

Sengottuvelan

Narayanan

et al. 2010

J of Applied Polymer Sci

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Four different samples of ferrocene-grafted hydroxyl-terminated polybutadiene (Fc-HTPB), containing 0.20, 0.52, 0.90, and 1.50 wt % iron, were synthesized by the Friedel-Crafts alkylation of ferrocene with hydroxyl-terminated polybutadiene (HTPB) in the presence of AlCl 3 as a (Lewis acid) catalyst. The effects of the reaction conditions on the extent of ferrocene substitution were investigated. The Fc-HTPBs were characterized by IR, ultraviolet-visible, 1 H-NMR, and 13 C-NMR spectra. The iron content and number of hydroxyl groups were estimated, and the properties, including thermal degradation, viscosity, and propellant burning rates (BRs), were also studied. The thermogravimetric data indicated two major weight loss stages around 395 and 500 C. These two weight losses were due to the depolymerization and decomposition of the cyclized product, respectively, with increasing temperature. The Fc-HTPB was cured with toluene diisocyanate and isophorone diisocyanate separately with butanediol-trimethylolpropane crosslinker to study their mechanical properties. Better mechanical properties were obtained for the gumstock of Fc-HTPB polyurethanes with higher NCO/OH ratios. The BRs of the ammonium perchlorate (AP)-based propellant compositions having these Fc-HTPBs (without dilution) as a binder were much higher (8.66 mm/s) than those achieved with the HTPB/ AP propellant (5.4 mm/s).

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Section: Introductionmentioning

confidence: 99%