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International Journal of Energetic Materials and Chemical Propulsion

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015012094
pages 49-64

EFFECTS OF CL-20 ON THE PROPERTIES OF GLYCIDYL AZIDE POLYMER (GAP) SOLID ROCKET PROPELLANT

Wei Qiang Pang
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China
Luigi T. De Luca
Space Propulsion Laboratory (SPLab), Department of Aerospace Science and Technology, Politecnico di Milano, I-20156 Milan, Italy
Hui Xiang Xu
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China
Xue Zhong Fan
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China
Yong Hong Li
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China
Wu Xi Xie
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China
Yang Li
Xi'an Modern Chemistry Research Institute, Xi'an 710065 P.R. China

ABSTRACT

The microstructures and granularity distributions of HMX and CL-20 particles were analyzed. Three industrial and research-type GAP-based solid propellants containing CL-20 particles, featuring the same nominal composition, were prepared and experimentally tested. The effects of CL-20 particles on the rheological properties, energetic properties, and the hazardous properties of GAP-based solid propellants were investigated. The properties mentioned above were also compared to those propellants containing HMX. Also, the strand burning rate and the associated combustion properties of propellants were determined. It turned out that the GAP-based propellants containing CL-20 particles can be prepared and cast safely. GAP-based propellants containing CL-20 particles are more sensitive to impact and friction compared to propellants with HMX. However, the addition of CL-20 particles to the propellant formulation can increase the burning rate and affect the combustion behavior, when compared to the reference propellant.