多官能团聚叠氮缩水甘油醚基浇注聚合物粘结炸药的固化反应动力学和固化工艺参数  

Curing Reaction Kinetics and Process of PBX-based ATP

作　　者：陈春燕[1] 王晓峰[1] 南海[1] CHEN Chunyan;WANG Xiaofeng;NAN Hai(Xi'an Modern Chemistry Research Institute,Xi'an 710065,Shaanxi,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《兵工学报》2021年第9期1888-1894,共7页Acta Armamentarii

基　　金：军队重点研发计划项目(2019年)。

摘　　要：为设定多官能团聚叠氮缩水甘油醚(ATP)在聚合物粘结炸药(PBX)中应用时的固化工艺参数,开展ATP基PBX固化测试方法和固化工艺实验研究。采用非等温差示扫描量热法和流变法进行实验,研究ATP基PBX固化过程中热量和储能模量的变化,获得PBX的固化反应动力学方程和固化工艺参数。实验结果表明:流变法可作为表征ATP基PBX固化反应的测试方法,ATP基PBX的固化反应动力学方程为dαdt=2.0×1019exp-1.51×105RTα0.42(1-α)1.30,α为固化度,t为时间,R为气体常数,T为温度。ATP基PBX直接在60℃恒温固化时PBX内部出现大量气孔,采用先30℃后60℃的阶梯固化工艺时PBX内部无气孔;ATP基PBX 30℃的最优固化时间为68 h,60℃的最优固化时间为66 h.The curing test method and curing process of polymer bonded explosives(PBX)-based polyfunctional glycidyl azide polymer(ATP)were experimentally studied to set the curing process parameters.In the experiment,the non-isothermal differential scanning calometry method and rheological method were used to study the changes in curing heat and curing storage modulus,and the curing reaction kinetic equation and curing process parameters of PBX were obtained.The experimental results show that the rheological method can be used to characterize the curing reaction of PBX,the reaction kinetic equation is dαdt=2.0×1019exp-1.51×105RTα0.42·(1-α)1.30.When the ATP-based PBX is cured directly at 60℃,a large number of pores appear in PBX,the 30℃and 60℃step curing process is adopted without pores in the PBX;the optimal curing time of ATP-based PBX at 30℃is 68 h,and the optimal curing time at 60℃is 66 h.

关 键 词：浇注聚合物粘结炸药 多官能团聚叠氮缩水甘油醚 固化时间 固化反应动力学方程 流变法 固化工艺 

分 类 号：TQ564.3[化学工程—炸药化工] TJ55[兵器科学与技术—军事化学与烟火技术]