增能钝感火药的物理与力学性能

Physical and Mechanical Properties of Energy Increased Deterred Propellant

目的研究高氮量单基火药吸收硝化甘油增能及钝感以后的物理、力学性能．方法通过压缩实验、落锤冲击实验、爆热实验等方法进行研究．结果高氮量单基火药增能后，其力学强度略有下降，但仍然远高于双基或三基火药；钝感层与基体火药的界面粘结强度明显提高．当吸收硝化甘油１４．１％时，表征能量的爆热提高约５．４％，在６５℃加速老化９０ｄ后，仍无脱粘现象发生．结论所研究的增能钝感火药能有效地增加能量，改善基体火药与钝感层的粘结强度，具有重要的工程应用价值．

Aim To study the physical and mechanical properties of energy increased deterred propellant. Methods The testing methods of compress strength, impact sensitivity and explosion heat were used. Results The mechanical itensity of energy increased high nitrogen content single base propellant decreases slightly, yet is still higher than that of double base and triple base propellant. The interface binding strength was improved between deterring layer and bulk of propellant. The explosion heat was increased by 5 4% when HNSBP assimilated 14 1% of nitroglycerin. Furthermore the deterring layer didn′t spall from bulk of propellant after aged at 65 ℃ for 90 d. Conclusion The propellant, prepared in this paper, can increase energy and improve the binding strength between deterring layer and propellant bulk effectively, and has great value in engineering.