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前言粒度及其分布是固体粉末样品的重要参数之一。气流粉碎法制备的细高氯酸铵(FAP)形状极不规则,粒径大小不一,分散性较大,给粒度的测定带来很大困难。筛分法、重力沉降与浊度法表面吸附与渗透压法以及X光散射法等,都由于其测量范围有限而不能通用。电子显微镜(EM)法则试范围甚广,成为FAP粒度及其分布测定的绝对方法。众所周知,显微镜法测粒度及其分布是通过数理统计分布图求取平均值及其标准偏差来表征。当数均遵循正态分布规律时,通
Introduction Particle size and distribution is one of the most important parameters for solid powder samples. The shape of fine ammonium perchlorate (FAP) prepared by the jet milling method is very irregular with different particle size and dispersibility, which makes it difficult to measure the particle size. Screening, gravity sedimentation and turbidity surface adsorption and osmotic pressure and X-ray scattering methods, due to its limited measurement range can not be universal. The Electron Microscopy (EM) rule trial has a wide range of tests, making it the absolute method for the determination of FAP particle size and distribution. As we all know, microscopic particle size and distribution measured by the statistical distribution of the mathematical mean and its standard deviation to characterize. When the number follow the normal distribution law, pass