摘要
为提高可燃药筒中二氧化钛填料的留着率,在配方中引入阴离子羧甲基淀粉钠(CMS),试制了两个可燃药筒样品,并进行了浆料固体填料分散情况、药筒力学性能和燃烧性能的测试研究。结果表明:对比传统可燃药筒,添加质量分数为1%的阴离子CMS的试样中,二氧化钛填料的留着率、抗拉强度和燃烧结束时间分别提高了50.0%、32.3%和106.1%,最大压力梯度降低了63.2%。说明阴离子CMS显著提高了二氧化钛填料的留着率,达到了降低可燃药筒燃速的目的。
In order to improve retention rate of TiO2filler in molded combustible cartridge cases,anionic sodium carboxymethyl starch(CMS)was added in the formulas,and two combustible cartridge samples were prepared.Dispersion of TiO2filler in the slurry,mechanical properties and combustion performance of the molded combustible cartridge cases were tested.Results show that the retention rate of TiO2filler,tensile strength and burning-off time,in the formulation with1%weigh ratio of anionic CMS,are increased by50.0%,32.3%,and106.1%respectively,compared to those of tradi-tional samples.Moreover,the maximum pressure gradient is reduced by63.2%.These indicate that the addition of anionic CMS could significantly improve retention rate of TiO2filler,enabling to reduce the burning rate of molded combustible car-tridge cases.
作者
李忠山
胡义文
孟勇
田书春
LI Zhongshan;HU Yiwen;MENG Yong;TIAN Shuchun(Xi'an North Huian Chemical Industries Co. ,Ltd. (Shaanxi Xi'an,710302);School of Chemical Engineering,Nanjing University of Science and Technolog(Jiangsu Nanjing,210094))
出处
《爆破器材》
CAS
2017年第6期26-30,共5页
Explosive Materials
关键词
可燃药筒
羧甲基淀粉钠
力学性能
填料留着率
燃速
combustible cartridge cases
sodium carboxymethyl starch (CMS)
mechanical characteristic
retention rate of the filler
burning rate
