Abstract
Plastic propellant is a stiff paste typically containing (by weight) 89% solids (ammonium perchlorate and perhaps aluminium and a burning catalyst), 1% synthetic surface-active agent and 10% polyisobutene. The polyisobutene has a nominal viscosity-average molecular weight of about 4 × 104 and a viscosity of about 100 kN/m2 (106 poise) at 25 °C, when measured at a very low shear-rate by the falling sphere (Stokes) method. The paste is similar to modelling clay or Plasticine, and may be considered to a first approximation as a Bingham solid subject to shear-hardening (1).
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© 1975 Springer-Verlag Berlin Heidelberg
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Dukes, W.A., Gledhill, V.M. (1975). Determination of plastoviscosity and the flow curve equation of stiff pastes by parallel plate plastometry. In: Vallet, G., Meskat, W. (eds) Rheological Theories · Measuring Techniques in Rheology Test Methods in Rheology · Fractures Rheological Properties of Materials · Rheo-Optics · Biorheology. Steinkopff, Heidelberg. https://doi.org/10.1007/978-3-662-41458-3_182
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DOI: https://doi.org/10.1007/978-3-662-41458-3_182
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