Clustering properties of partly charged superfine particles in a light medium

Jing Sheng Li Juan Wang Qin Shen

引用本文: 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 shu
Citation:  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 shu

Clustering properties of partly charged superfine particles in a light medium

  • 基金项目:

    This work was supported by the National Natural Science Foundation of China (No.50474037) and The Natural Science Funds (No.BK2006078) in Jiangsu Province of China.

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 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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  • 收稿日期:  2007-03-30
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