Abstract
ABSTRACT In this study, the effect of dual curing agent (toluene diisocyanate:dimeryl diisocyanate (TDI:DDI)) on the properties of hydroxyl-terminated polybutadiene (HTPB)-based solid propellant (such as mechanical strength, elongation percentage, elastic modulus, hardness, burning rate and pressure exponent (n)) has been investigated. Thus, five solid propellant formulations with different proportional amounts of TDI and DDI, with same loading rate and constant R value, were prepared, and the mechanical properties and burning rate of the prepared samples were evaluated. Tensile test conducted on the solid propellant cured for 7 days showed that increasing the proportional amount of DDI compared to TDI in the solid propellant formulation increases the elongation percentage and decreases the tensile strength, modulus, burning rate and pressure exponent (n). Considering that DDI also plays the role of a softening agent in the solid propellant formulation, increasing its amount in the solid propellant formulation will decrease the viscosity, causing a higher pot life.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
