›› 2007, Vol. 7 ›› Issue (4): 827-831.

• 材料工程专栏 •

### 非水环境中球磨作用对改性SiO2晶体结构、粒度和Zeta电位的影响

1. 中南大学化学化工学院
• 出版日期:2007-08-20 发布日期:2007-08-20

### Effect of Non-aqueous Ball Milling on the Structure, Particle Size and Zeta Potential of Modified Silicon Dioxide

HU Hong-ying,HU Hui-ping,CHEN Qi-yuan

1. University of Chemistry and Chemical Engineering, Central South University
• Online:2007-08-20 Published:2007-08-20

Abstract: The effects of non-aqueous ball milling on the structure and properties of modified silicon dioxide particles were investigated using X-ray powder diffraction, particle size analysis and zeta potential analysis, etc. The results indicate that the structure, particle size and zeta potential of modified silicon dioxide are related to the grinding conditions. Different modified silicon dioxide powder samples are obtained after ball-milling in air, DMF, DMF with 10% silane coupling agent, and DMF with 20% silane coupling agent, respectively. For example, after ball-milling 3 h, the average crystallite sizes of the above corresponding modified silicon dioxide samples are 46.9, 31.4, 24.5 and 75.9 nm, respectively, and average lattice distortion (e) of the above corresponding modified silicon dioxide samples is 0.0253%, 0.0871%, 0.117% and 0.063%, respectively. The medium diameters of the above corresponding modified silicon dioxide powder samples are 4.241, 1.586, 1.321 and 5.092 mm, respectively.