用DTA技术研究了八种苯并氧化呋咱化合物的热分解。结果表明 ,苯环上氧化呋咱基团的增加可导致相应化合物热分解活化能E下降 ;苯环上其它基团的存在也改变E值 ,苯并三氧化呋咱 (BTF)热分解速率与RDX相近。 The thermal decomposition of eight benzofuranoxan compounds was studied by DTA technique. The results showed that the increase of the furazan group on the benzene ring led to the decrease of the thermal decomposition activation energy E of the corresponding compound; the existence of other groups on the benzene ring also changed the E value, the thermal decomposition rate of the benzofuran trioxide (BTF) RDX similar.