一种新型的聚合物钝感包覆发射药

A New Type of Polymer Deterrent Coated Gun Propellant

采用密闭爆发器试验、１４．５ｍｍ机枪试验、加速老化试验等方法，研究了钝感剂分子量对新型的聚合物钝感包覆枪炮发射药性能的影响。结果表明与ＤＢＰ钝感火药及未钝感火药相比，聚合物钝感包覆火药初始燃速较低，燃烧渐增性较强，内弹道效率较高，试验结果还显示聚合物钝感剂迁移比ＤＢＰ小，且聚合物钝感剂迁移性随其分子量增大而下降。

A new type of polymer deterrent coated gun propellant was investigated by the means of closed bomb tests,14.5mm gun firing tests and accelerated aging tests.The results show that polymer deterrent coated propellants have lower initial burning rate,higher burning rate progressivity and higher interior ballistic efficiency than those of DBP deterrent coated one and uncoated one.Test data indicate that polymer deterrents migrate slower than DBP.And with the increase of molecular weight of the polymers,their migration tendency decrease.