High Performance Thermoplastic Energetic Composites Using Fluorinated Energetic Polyurethanes as Binder

The performance of energetic composite materials is largely dependent on the energy level and combustion process. The fluorine-containing energetic polyurethanes as binder can facilitate the combustion of metallic fuels and enhance the energy level of the energetic composites. In the current report, two kinds of thermoplastic energetic composites are prepared, based on novel fluorine-containing energetic polyurethanes as binder and also with aluminum nanoparticles (AlNPs) and ammonium perchlorate (AP). Compared with the energetic composites with fluorine-free energetic polyurethane binder, despite the very low fluorine content, the fluorine-containing energetic composites not only showed higher density, lower mechanical sensitivity, much higher mechanical toughness, but also a significantly improved combustion efficiency and combustion rate of the AlNPs.

Automated summary

In this study, two types of thermoplastic energetic composites were prepared using novel fluorine-containing energetic polyurethane as binder and the addition of aluminum nanoparticles and ammonium perchlorate. Compared to the fluorine-free energetic composites, the fluorine-containing composites exhibited higher density, lower mechanical sensitivity, enhanced mechanical toughness, and significantly improved combustion efficiency and rate of the aluminum nanoparticles.