摘要：为了提升纳米复合干扰发烟剂的干扰性能和使用性能,对该发烟剂的流散性进行了改性研究,在发烟剂中加入流散剂,并利用三维混合机充分混匀后进行流散性测试。结果表明,发烟剂的流动性和喷流性有显著提高,且流动性指数和喷流性指数均随着流散剂含量的增加而增大;在烟箱中对比研究改性前后发烟剂的干扰效果,测试结果显示,改性后的发烟剂对红外和激光的干扰性能明显提升,衰减率更大,持续干扰时间更长;另外,将改性后的发烟剂在野外进行分散效果和干扰性能测试,进一步证实了其良好的分散性能和干扰性能,通过气流喷撒装置将其分散到空气中能够形成稳定的烟幕气溶胶,对可见光、激光和红外均能够产生良好的干扰效果。

Abstract: In order to improve the performance of nano-composite smoke agent，the study on improving flowability and floodability of the smoke agent has been carried out in this paper．By adding dispersant，the flowability and floodability of smoke agent are significantly improved and the flowability and floodability indexes increase with the increasing of dispersant content．The experimental results in smoke box reveal that the jamming performance of improved smoke agent to infrared light and laser light is obviously strengthened，and the effective jamming time lasts longer．Moreover，the dispersion effect and jamming performance have been tested in the field．The field results show that the smoke can be well dispersed in the air to form stable smoke aerosol and has a good jamming effect to visible light，infrared light and laser light．

Keywords: ultrafine powder; smoke agent; flowability; floodability; infrared jamming