Biomass tannic acid modified titanium dioxide nanoparticles enhance desensitization and thermal stability of...

Titanium dioxide (TiO₂) had the potential to be a desensitizing material, but its inherent characteristics presented challenges for coating on energetic materials. To enhance the interfacial interactions of energetic materials and TiO₂, the surface of TiO₂ was modified with biomass tannic acid (TA) to prepare the core-shell (hexanitrohexaazaisowurtzitane) CL-20@TA-TiO₂ energetic composites. Various characterization techniques were used to investigate the thermal performance, impact sensitivity, structure, and surface morphology of CL-20@TA-TiO₂. The protective layer formed by the TA-TiO₂ coating on the surface of CL-20, thus protecting the material from external stimulation. The results indicated that the organic-inorganic core-shell energetic composites prepared with biomass TA as the interface layer exhibited outstanding performance.