Study on compatibility of common propellant binders with ADN

In this article, we use molecular dynamics simulation and thermal decomposition analysis to determine the physical and chemical compatibility of ADN/binders systems. The experimental results show that the ADN/inert binder systems do not have good physical compatibility, but HTPB and CTPB can stabilize the thermal decomposition of ADN, improve safety of use, while PEG severely affects safety of use and belongs to a chemically highly incompatible system. The components of the ADN/azide binder systems have strong interactions between the components, among which the |Delta delta| of the ADN/PBT system is 0.643 < 3 Mpa(1/2), and PBT can stabilize the thermal decomposition of ADN, with great application potential. The interactions between the components of the ADN/nitrate ester -binder systems are smaller than that of the ADN/azide binder systems, but there are hydrogen bonding between the components. Theoretically, the ADN/nitrate ester binder systems have better physical compatibility. The comprehensive assessment of both physical and chemical compatibility assists in selecting binder systems that are more compatible with ADN propellants in practical applications.