Migration of Plasticizer between Bonded Propellant Interfaces

Plasticizer migration across bonded propellant interfaces during cure has been shown to have a measurable effect on propellant properties compared to each propellant by itself. This shows that the curing period is significant to the migration phenomenon. The plasticizer migration has been shown to h...

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Bibliographic Details
Published inPropellants, explosives, pyrotechnics Vol. 28; no. 1; pp. 12 - 17
Main Authors Gottlieb, Levi, Bar, Sigalit
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.02.2003
WILEY‐VCH Verlag
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Summary:Plasticizer migration across bonded propellant interfaces during cure has been shown to have a measurable effect on propellant properties compared to each propellant by itself. This shows that the curing period is significant to the migration phenomenon. The plasticizer migration has been shown to have a direct influence on tensile strength for short aging periods up to the point the plasticizer reaches equilibrium. The tensile data for short aging periods have been shown to follow an empirical equation connecting the physical characteristics of plasticizer migration with increasing propellant tensile strength. The diffusion coefficient has been evaluated on the basis of this relation from a plot of σ$ ^{\it m}_{\rm t}$ versus t1/2 and was in good agreement with the diffusion coefficient from the plasticizer content data.
Bibliography:ark:/67375/WNG-B10N52ZH-G
istex:6EABCAFB2EC7D32810928B1A5335F42666A3618F
ArticleID:PREP#200390000
ISSN:0721-3115
1521-4087
DOI:10.1002/prep.200390000