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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2016> 25(2): 164-171
CHENG Jun, YAN Nan, YE Yao-kun, BAO Bing-liang. Stability of N-LTNR exposing to severe thermal stimulus[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2016, 25(2): 164-171. doi: 10.15918/j.jbit1004-0579.201625.0202
Citation: CHENG Jun, YAN Nan, YE Yao-kun, BAO Bing-liang. Stability of N-LTNR exposing to severe thermal stimulus[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2016, 25(2): 164-171.doi:10.15918/j.jbit1004-0579.201625.0202
shu

Stability of N-LTNR exposing to severe thermal stimulus

doi:10.15918/j.jbit1004-0579.201625.0202
  • 1.

    State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    Beijing Institute of Spacecraft System Engineering, Beijing 100094, China

  • Received Date:2014-09-20
    Abstract
  • The thermal stability of normal lead styphnate (N-LTNR) has been studied under severe temperature (-70℃ -130℃ for 5 days) with a high optical microscope and camera were used to observe apparent morphology and thermal gravimetric analysis was applied to study the physical changes. In addition, vacuum stability analysis, differential scanning calorimetry(DSC), thermal gravimetric analysis(TGA) and purity analysis were utilized to study the chemical changes. As well as flame sensitivity analysis were used to investigated the explosive changes. The results show that N-LTNR has good chemical stability and fire function stability between -70℃ and 130℃, but poor physical stability. When the temperature was exceeded than 110℃, the N-LTNR lost crystal water which made the energetic material become darker in color, lager in volume and lighter in weight (3.416%) when the temperature was below -40℃, the phenomenon of crystal broking and jumping happened.
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