燃烧法和固相法所制备的红褐色陶瓷颜料ZnFe_(1.2)Cr_(0.8)O_(4)的研磨效果研究

Study on Grinding Effect of Reddish Brown Ceramic Pigment ZnFe_(1.2)Cr_(0.8)O_(4)Prepared by Combustion and Solid Phase Methods

本文以燃烧法和固相法分别制备的红褐色陶瓷颜料ZnFe_(1.2)Cr_(0.8)O_(4)(燃烧法:C-ZnF;固相法:S-ZnF)为研究对象,采用正交试验的方法对颜料颗粒的研磨最优参数进行分析探讨。使用激光粒度仪表征研磨前后颜料颗粒的粒度及其分布,通过极差分析法来分析研磨的最优参数。结果表明,上述两种颜料颗粒的最优研磨条件均为:添加5wt%的分散剂WF211,研磨时间为100min,研磨转速为2000rpm。在相同的研磨条件下,对比固相法制备的颜料颗粒S-ZnF,燃烧法制备的颜料颗粒C-ZnF可以得到颗粒粒度细且分布窄的颜料颗粒产品。另外,采用一种粒数衡算模型(PBM)来模拟颜料颗粒的研磨过程破碎行为,计算颜料颗粒在研磨过程中的选择函数矩阵。通过模拟分析表明,颜料颗粒C-ZnF的研磨效果要优于颜料颗粒S-ZnF。

The ceramic pigment particles ZnFe_(1.2)Cr_(0.8)O_(4) prepared by combustion method and solid phase method were used as the research object(combustion method:C-ZnF;solid phase method:S-ZnF).And the method of orthogonal test is used to analyze and discuss the optimal grinding parameters of pigment particles.A laser particle size analyzer was used to characterize the particle size and distribution of the pigment particles before and after grinding,and the optimal parameters of the grinding were analyzed by the range analysis method.The results show that the optimal grinding conditions for the above two pigment particles are:adding 5wt%dispersant WF211,grinding time is100min,grinding speed is 2000rpm.Under the same grinding conditions,compared with the S-ZnF prepared by the solid phase method,the C-ZnF prepared by the combustion method can obtain a pigment particle product with fine particle size and narrow distribution.In addition,a particle population balance model(PBM)was used to simulate the crushing behavior of the pigment particles in the grinding process,and the selection function matrix of the pigment particles in the grinding process was calculated.The simulation analysis shows that the grinding effect of pigment particle C-ZnF is better than that of pigment particle S-ZnF.