不溶性硫黄的粒度分布测试方法研究

Study on Test Method for Particle Size Distribution of Insoluble Sulfur

研究不溶性硫黄粒度分布的测试方法。结果表明:激光衍射法干法测试无法得到真实的粒度分布,采用激光衍射法湿法测试,以无水乙醇为分散剂,结合纯搅拌处理工艺,测试结果更符合实际情况;该方法测定的粒度分布结果重复性好,且与扫描电子显微镜照片相符合,说明了该方法的可靠性。

A test method for the particle size distribution of insoluble sulfur was studied.The results showed that the true particle size distribution could not be obtained by the dry test using laser diffraction.With the wet test using laser diffraction and absolute ethanol as the solvent under agitation treatment,the test results were more accurate with good reproducibility,and consistent with the results from scanning electron microscopy test,indicating good reliability of the method.