Preparation and characterization of CL-20/NTO/Estane5703 composite microspheres by spray drying

CL-20/3-nitryl-1,2,4-triazole-5-one (NTO)/Estane5703 composite microspheres were prepared by a spray drying process using different processing parameters, which included the following four influencing factors: solvent type, inlet temperature, solution concentration, and flow rate of feed solution. Scanning electron microscopy (SEM) was used to characterize nanocomposites. The effects parameters on morphology samples investigated discussed. X-ray diffraction (XRD) differential scanning calorimetry properties materials. XRD results show that peaks particle correspond β-Cl-20 NTO. mechanical sensitivity measured analyzed. SEM indicated optimal achieved when dry gas 80 °C, 10 mg ml−1, 1.5 ml min−1, respectively, best is ethyl acetate. thermal analysis exhibited improved stability CL-20 in microspheres, whereas impact tests showed enhancement their properties. Therefore, proposed method an effective means fabricating microspheres.