| Clustering properties of partly charged superfine particles in a light medium |
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| 引用本文： | Jing Sheng Li Juan Wang Qin Shen. Clustering properties of partly charged superfine particles in a light medium[J]. 中国化学快报, 2007, 18(11): 1419-1422. DOI: 10.1016/j.cclet.2007.09.001 |
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| 作者姓名： | Jing Sheng Li Juan Wang Qin Shen |
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| 作者单位： | School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xue Fu Road, Zhenjiang 212013, China |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | This paper investigated average cluster sizes （ACS） and cluster size distributions （CSD） at different shear rates by Brownian dynamics in non-, bi-, and uni-polar systems with partly charged superfine particles, The investigation indicates that clusters in non- polar systems are the weakest and easiest to be damaged by increasing shear stresses; charged particles play important and different roles： in bi-polar system, it intends to strengthen clusters to some extent provided that the sign-like ions homogeneously arranged; in uni-polar system charged particles cracked the clusters into smaller ones, but the small clusters are strong to stand with larger shear stress. The relationship between ACS and shear rates follows power law with exponents in a range 0.18-0.28, these values are in a good agreement with experiment range but at the lower limit compared with other systems of non-metallic cluster particles.
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| 关 键 词： | 光子化学 微粒物 平均聚类 分布状况 |
| 收稿时间： | 2007-03-30 |
| 修稿时间： | 2007-03-30 |
Clustering properties of partly charged superfine particles in a light medium |
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| Jing Sheng Li,Juan Wang,Qin Shen. Clustering properties of partly charged superfine particles in a light medium[J]. Chinese Chemical Letters, 2007, 18(11): 1419-1422. DOI: 10.1016/j.cclet.2007.09.001 |
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| Authors: | Jing Sheng Li Juan Wang Qin Shen |
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| Affiliation: | School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xue Fu Road, Zhenjiang 212013, China |
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| Abstract: | This paper investigated average cluster sizes (ACS) and cluster size distributions (CSD) at different shear rates by Brownian dynamics in non-, bi-, and uni-polar systems with partly charged superfine particles. The investigation indicates that clusters in nonpolar systems are the weakest and easiest to be damaged by increasing shear stresses; charged particles play important and different roles in bi-polar system, it intends to strengthen clusters to some extent provided that the sign-like ions homogeneously arranged; in uni-polar system charged particles cracked the clusters into smaller ones, but the small clusters are strong to stand with larger shear stress. The relationship between ACS and shear rates follows power law with exponents in a range 0.18-0.28, these values are in a good agreement with experiment range but at the lower limit compared with other systems of non-metallic cluster particles. |
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| Keywords: | Partly charged particles Average cluster sizes Cluster size distributions |
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