激光衍射法和机械筛分法测定PVC树脂粒径分布的对比

Comparison between laser diffraction and mechanical screening for determination of particle size distribution of PVC resin

介绍了PVC树脂粒径分布的两种测定方法-激光衍射法和机械筛分法,从测定原理、操作方法、试验数据3个方面,总结了两种测定方法的优缺点、结果的差异性及适用性。

Two methods of determining the particle size distribution of PVC resins,i.e.laser diffraction method and mechanical screening method,were introduced.The advantages and disadvantages of the two methods,the difference in determination results and the applicability were summarized from aspects of determination principle,operation method and test data.