超细HNS颗粒状态研究  

Study on Superfine HNS Particles

作　　者：王平[1] 郁卫飞[1] 张娟[1] 刘春[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2008年第5期511-514,共4页Chinese Journal of Energetic Materials

摘　　要：研究了温度及高聚物对超细六硝基茋（HNS-Ⅳ）颗粒状态的影响。结果表明：经22～25 ℃干燥48 h的超细HNS颗粒分散性较好，而100 ℃干燥2 h即引起HNS-Ⅳ颗粒团聚；HNS-Ⅳ在真空25 ℃脱气8 h，所测孔体积与比表面积（BET）高于真空65 ℃脱气2 h的测试数据；HNS-Ⅳ比表面积并非完全取决于平均粒径，而在一定程度上随其孔体积呈线性变化；纯HNS-Ⅳ平均粒径0.789 μm，孔体积0.032 cm^3·g^-1，比表面积15.13 m^2·g^-1，添加3% P聚合物后，其平均粒径0.594 μm，孔体积 0.026 cm^3·g^-1，比表面积11.41 m^2·g^-1，加入4% P聚合物，其平均粒径0.890 μm，孔体积0.052 cm^3·g^-1，比表面积23.38 m^2·g^-1。The effect of preparation temperature and polymer additive on superfine HNS particles was studied to investigate its microstructure. The results show that superfine HNS particles disperse well drying 48 h at 22 -25 ℃ ,and aggregates drying 2 h at 100 ℃. The pore volume and specific surface area of HNS-Ⅳ adsorbed 8 h in vacuum at 25 ℃ are larger than that of HNS-Ⅳ adsorbed 2 h in vacuum at 65 ℃. The surface area is not totally depended on mean particle size but linearly changes with pore volume to some extent. The mean particle size of pure HNS-Ⅳ is 0. 789 μm,the pore volume and surface area are 0. 032 cm^3·g^-1 and 15.13 m^2 · g^-1 respectively. The mean particle size,pore volume and surface area of particles containing 3% polymer are 0.594 μm,0.026 cm^3 ·g^-1 and 11.41 m^2·g^-1 respectively. The mean particle size,pore volume and surface area of particles containing 4% polymer respectively are 0. 594 μm ,0. 026 cm^3·g^-1 and 11.41 m^2·g^-1 respectively.

关 键 词：超细HNS(HNS-Ⅳ) 平均粒径(D^-) 比表面积(BET) 孔体积 

分 类 号：TQ564[化学工程—炸药化工] TS231[轻工技术与工程—粮食、油脂及植物蛋白工程]