片状超细粉厚度测定制样方法研究

为了实现对片状超细云母颗粒厚度的准确测定,采用环氧树脂法、压片法、煮胶法、叠片法和半叠片法等制样方法,通过实验,系统地分析和研究如何使片状超细粉颗粒直立,通过用SEM表征粉体厚度制样方法的效果。结果表明:环氧树脂法、压片法、煮胶法都无法准确测定超细云母颗粒的厚度,半叠片制样方法可以使片状超细云母颗粒固定,还可以使颗粒直立,从而可以准确测定云母颗粒的厚度。

Study of Preparation Methods for Determination of Thickness of Flake Fine Powder

In order to measure the thickness of ultrafine mica particles with flake shape,the preparing methods how to make the ultrafine flake parti-cles stand were analyze and researched through the experiments by using epoxy resin method,pressed-pellet method,glue cooking method,lamina-tion method,and semi-laminated method.The samples were characterized by SEM.The results showed that the thickness of ultrafine flake particles could not be measured by epoxy resin method,pressed-pellet method and glue cooking method.The semi-laminated method not only fixed the parti-cles,but also made the flake particles stand,so that the thickness of ultra-fine flake particles could be measured accurately.