HTPE推进剂药浆粘流性能及其影响因素研究  

Study on viscous flow properties of HTPE propellant slurry and its influencing factors

作　　者：那青 姚维尚[1] 夏敏[1,2] 郭涛[1] 张铭浩 祁振宇 罗运军 NA Qing;YAO Weishang;XIA Min;GUO Tao;ZHANG Minghao;QI Zhenyu;LUO Yunjun(Beijing Institute of Technology, Beijing 100089, China;Ministry of Education Key Laboratory of High Energy Density Materials, Beijing 100081, China)

机构地区：[1]北京理工大学材料学院,北京100081 [2]高能量密度材料教育部重点实验室,北京100081

出　　处：《兵器装备工程学报》2022年第6期1-6,共6页Journal of Ordnance Equipment Engineering

摘　　要：为获得HTPE推进剂药浆中固体填料对粘流性能的影响,研究了固体填料的体积分数、粒径对药浆粘度的影响,利用Krieger-Dougherty粘度方程得到HTPE与填料体积分数的关系,分析了填料尺寸和粒度级配对药浆粘度与粘度方程的影响,并得到填料表面吸附层厚度的计算方法优化了粘度方程。结果表明,填料表面对HTPE的吸附和填料在HTPE中的分布,是填料粒径变化对HTPE推进剂药浆的粘度产生影响的原因,表面吸附造成粘度上升,颗粒分布对粘度η的影响取决于分散相在连续相内的最大体积分数Φ_(m)的大小,Φ_(m)越大药浆粘流性能越好;填料平均粒径较小或存在粒度级配时有利于提高HTPE中填料的填充上限,AP-Ⅲ/Al-3^(#)/HTPE体系的Φ_(m)=0.69,适合在固体推进剂中用于粒度级配。In order to obtain the effect of solid fillers in HTPE propellant slurry on viscous flow properties,the effects of volume fraction and particle size of solid particles on slurry viscosity were studied.The Krieger-Dougherty viscosity equation was used to obtain the relationship between HTPE and solid particle volume fraction.The relationship between filler size and particle size gradation between fillers and slurry viscosity and viscosity equation was analyzed,and the calculation method of the thickness of the adsorption layer on the surface of the filler was obtained to optimize the viscosity equation.The results show that the adsorption of HTPE on the surface of the filler and the distribution of the filler in the HTPE are the reasons why the change of the filler particle size affects the viscosity of the HTPE propellant slurry.The viscosity rises due to surface adsorption.The influence of particle distribution on viscosity depends on the size ofΦ_(m).The larger theΦ_(m),the better the viscous flow performance of the slurry.The filling upper limit of the filler in HTPE isΦ_(m)=0.69 of AP-III/Al-3^(#)/HTPE system,which is suitable for particle size grading in solid propellant.

关 键 词：HTPE Krieger-Dougherty 粘度 表面吸附 固含量 颗粒级配 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]