湿法测定甲基纤维素的粒度与粒度分布

Determination of particle size and particle size distribution of methylcellulose by Met Method

目的:建立甲基纤维素粒度与粒度分布的湿法测定方法。方法:使用马尔文2000激光粒度分析仪,湿法测定甲基纤维素的粒度与粒度分布。结果:3个厂家的10批样品粒度分布曲线均呈现双峰。粒径分布特征值d(0.1)在0.613~0.952μm范围,d(0.5)在2.397~81.270μm范围,d(0.9)在120.297~208.316μm范围。结论:本方法适用于甲基纤维素粒度与粒度分布测定。

Objective： To develop a wet method for determination of the particle size and particle size distribution of methylcellulose. Methods： The Malvern 2000 Laser Size Analyzer was used to measure the particle size and particle size distribution of methylcellulose by a met method. Results： The particle size distribution curves of ten samples from three factories include two peaks. The d（ 0. 1） range was 0. 613 ～ 0. 952 μm,the d（ 0. 5） range was 2. 397-81. 270 μm and the d（ 0. 9） range was 120. 297 ～ 208. 316μm. Conclusion： The method is suitable for the particle size control of methylcellulose.