摘要
采用溶液水悬浮法制备黑索今(RDX)造型粉,探讨了造粒工艺条件对某高聚物溶液包覆RDX工艺的影响。通过单因素试验和正交试验对各种因素的影响进行了研究,并就产品的感度和粒度对影响因素进行了验证。试验中钝感剂与高聚物混合加入,整个造粒过程只在驱除剩余溶剂时使用真空泵。实验结果表明,影响造粒效果与造型粉感度的主要因素为加料速度、温度、搅拌速度及乙酸乙酯第二次加入量。得到较佳的工艺条件:造粒温度63℃、搅拌速度300r·min-1、滴加速度0.06mL·s-1、乙酸乙酯第二次加入量与加入高聚物的质量比为4∶1。影响造粒效果与造型粉感度的因素大小顺序为乙酸乙酯第二次加入量、搅拌速度、温度、加料速度。而乙酸乙酯的第二次加入量较大程度上决定着最后产品的包覆效果和产品的粒度分布范围。
RDX molding powder is prepared by water slurry. The effect of technical process on the coating RDX with polymer solution is studied. The effect of each factor was studied by the sensitivity and particle size. The desensitizing agent and polymer were added as mixture, vacuum pump was used to drive remain solvent in the process and sound result was obtained. Material adding rate, temperature, agitating rate, the secondary addition of ethyl acetate were the main factors affecting the preparation quality and sensitivity of the molding powder. Optimized parameters are obtained： reaction temperature 63 ℃ , agitating rate 300 r · min^-1 , adding rate 0.06 mL · s^-1 , the weight ratio of ethyl acetate added in the second time and polymer 4： 1. The order of factors affecting preparation quality and sensitivity of molding powder is as follows ： secondary addition of ethyl acetate, agitating rate, temperature, material adding rate. Furthermore, secondary addition of ethyl acetate is the most important factor to affect the packing quality and particle size of the product.
出处
《含能材料》
EI
CAS
CSCD
2005年第6期382-384,共3页
Chinese Journal of Energetic Materials
