Influence of planetary ball milling parameters on the mechano-chemical activation of fly ash
Influence of planetary ball milling parameters on the mechano-chemical activation of fly ash
复制标题
DOI：
10.1016/j.powtec.2015.04.078
复制
发表时间：
2015-09-01
影响因子：
5.2
通讯作者：
Anandhan, S.
中科院分区：
文献类型：
--
作者：
Patil, Akshata G.;Anandhan, S.
本研究说明了设计的统计分析田口方法，以获得纳米结构的飞灰行星球磨。采用正交试验和方差分析方法分析了铣削工艺参数的影响。对F级粉煤灰进行了表面活性剂辅助下的行星式球磨诱导机械力化学活化。球磨参数，如球与粉末的重量比，类型和数量的表面活性剂和介质的类型是由田口设计的指导下变化。采用动态光散射、BET比表面积分析、X射线衍射、FTIR光谱、扫描电子显微镜、场发射扫描电子显微镜和透射电子显微镜对纳米粉煤灰进行了表征。球粉比和表面活性剂类型是影响较低微晶尺寸和平均粒径以及较高比表面积的主要因素。红外光谱分析证实了粉煤灰的表面改性。该方法制备的纳米粉煤灰在聚合物工业中作为复合材料的增强体具有广阔的应用前景。(C)2015 Elsevier B.V.版权所有。
This study illustrates the design of statistical analysis by Taguchi methodology to obtain nanostructured fly ash by planetary ball milling. An orthogonal array and analysis of variance were employed to analyze the effect of milling parameters. A class-F fly ash was subjected to planetary ball milling induced mechano-chemical activation aided by a surfactant. Ball milling parameters, such as ball-to-powder weight ratio, type and quantity of surfactant and type of medium were varied as guided by the Taguchi design. The nanostructured fly ash was characterized by dynamic light scattering, BET surface area analysis, X-ray diffraction, FTIR spectroscopy, scanning electron microscopy, field emission scanning electron microscopy and transmission electron microscopy. The ball-to-powder weight ratio and the surfactant type are the major influencing factors on lower crystallite size and average particle size and higher specific surface area. The surface modification of fly ash was confirmed by FTIR spectroscopy. The nano fly ash produced by this method has a wide application potential in polymer industries as reinforcement in composites. (C) 2015 Elsevier B.V. All rights reserved.