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本文报导了用LKY-1型微粒测定仪测定石墨粒径大小及粒度分布,以及分散剂、沉降液、缓冲液等因素对测定结果的影响。实验表明,用圆盘离心沉降法测定几种石墨粒度分布情况与扫描电镜照片粒径范围接近。该方法重复性好,可用于测定超细粉末的粒度分布。
This paper reports the determination of graphite particle size and particle size distribution by LKY-1 Particle Analyzer and the effect of dispersant, sedimentation liquid and buffer on the determination results. Experiments show that the disc centrifugal sedimentation method to determine the distribution of several types of graphite particle size and scanning electron microscopy range close. The method is reproducible and can be used to determine the particle size distribution of ultrafine powders.