炸药与黏结剂溶液的黏附功对PBX水悬浮制备工艺的影响

Effect of Adhesion Work between Explosive and Adhesive Solution on the Water Suspension Preparation Process of PBX

能否采用水悬浮工艺制备聚合物黏结炸药(PBX),一般需要多次试验后对炸药/黏结剂体系进行判断。测试了不同浓度的氟橡胶(F2603)溶液与奥克托今(HMX)、1,1-二氨基-2,2-二硝基乙烯(FOX-7)的接触角,计算了HMX、FOX-7与不同浓度的F2603溶液、7%乙酸乙酯@水的黏附功,分析了黏结剂溶液浓度变化对成粒的影响。结果表明:HMX与质量分数14%的F2603溶液的黏附功大于HMX与7%乙酸乙酯@水之间的黏附功,HMX可以黏结成粒;FOX-7与不同浓度F2603溶液的黏附功均小于FOX-7与7%乙酸乙酯@水之间的黏附功,FOX-7无法黏结成粒。经试验验证,计算结果与实际成粒情况一致。

It is generally necessary to conduct multiple experiments before determining whether a polymer bonded explosive(PBX)can be prepared using a water suspension process for an explosive/binder system.The contact angles between different concentrations of fluororubber(F2603)solution and HMX or FOX-7 were tested.The adhesion work of HMX or FOX-7 to different concentrations of F2603 solution and 7%ethyl acetate@water was calculated,and the effect of binder solution concentration variation on particle formation was also analyzed.The results show that the adhesion work between HMX and F2603 solution with mass fraction of 14%is greater than that between HMX and 7%ethyl acetate@water,and HMX can bond into granules.The adhesion work between FOX-7 and different concentrations of F2603 solution is smaller than that between FOX-7 and 7%ethyl acetate@water,and FOX-7 cannot bond into granules.It is verified by test that the calculated results are consistent with the actual granulation.