中文摘要：

采用分离式霍普金森压杆（SHPB）实验技术，研究两种不同配比的聚四氟乙烯／铝（PTFE／Al）活性材料（PA265和PA35）在高应变率下的力学压缩性能与加载反应性能，对比分析了铝含量不同对PTFE／Al活性材料的屈服强度，破坏性能，反应性能的影响。研究结果表明：两种PTFE／Al活性材料存在应变率效应，在应变率1000～8000s^-1范围，PA265的屈服应力为32～44MPa，PA35的屈服应力为40～55MPa。铝含量越高，PTFE／Al的屈服强度越高；在应变率3100～5800s^-1范围内，两种材料的破坏应力基本相同，约为143～153MPa；PA265和PA35的临界反应应力分别为157，163MPa；铝粉含量不能高于35％，否则由于缺少足够的氧化剂（PTFE）而普遍出现不完全燃烧反应的现象。

英文摘要：

The dynamic compressive and reactive properties of two kinds of PTFE/Al reactive materials were studied by the split Hopkinson pressure bars（SHPB）. The effects of Al content on yield stress, fragmented and reaetive properties of PTFE/Al reactive materials were analyzed. Results show that PTFE/Al is sensitive to the strain rate. In the strain rate range of 1000 - 8000 s ^-1 , the yield stress of PA265 is 32 -44 MPa and the yield stress of PA35 is 40 -55 MPa; the yield stress increases with Al content; the fragmented stress is 143 -153 MPa in the strain rate range of 3100- 5800 s^-1f or the PTFE/Al reactive materials; the critical reactive stresses of PA265 and PA35 are 157 MPa and 163 MPa; partial reaction phenomena appear frequently due to lacking of enough oxidant polytetrafluorethylene （PTFE） , if Al content is higher than 35%.