| 球胶态颗粒在中等电位条件下双电层相互作用能和力 |
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| 引用本文： | 郭继志,罗根祥,王好平,赵雄虎.球胶态颗粒在中等电位条件下双电层相互作用能和力[J].高等学校化学学报,1998,19(8):1308-1311. |
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| 作者姓名： | 郭继志 罗根祥 王好平 赵雄虎 |
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| 作者单位： | 1. 抚顺石油学院石油化工系, 抚顺, 113001;
2. 石油大学石油工程系, 北京, 102200 |
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| 摘 要： | 根据有效表面电位的定义,使用改进的Derjaguin法,推导出在中等电位条件下等同和不等同球形胶态颗粒相互作用能和力的近似表达式.与精确的数值解相比,对等同球颗粒,表面电位≤100mV;对不等同球颗粒,表面电位≤75mV;最大相对误差均小于±10%,表明该近似式是目前较好的.
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| 关 键 词： | 排斥能 排斥力 球 |
| 收稿时间： | 1997-05-08 |
Interaction Energy and Force of Spherical Colloidal Particles at Moderate Potential |
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| GUO Ji-Zhi,LUO Gen-Xiang,WANG Hao-Ping,ZHAO Xiong-Hu.Interaction Energy and Force of Spherical Colloidal Particles at Moderate Potential[J].Chemical Research In Chinese Universities,1998,19(8):1308-1311. |
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| Authors: | GUO Ji-Zhi LUO Gen-Xiang WANG Hao-Ping ZHAO Xiong-Hu |
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| Institution: | 1. Department of Petrochemical Engineering, Fushun Petroleum Institute, Fushun, 113001;
2. Department of Petroleum Engineering, University of Petroleum, Beijing, 102200 |
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| Abstract: | Using the definition of the effective reduced surface potential and resorting to improved Derjaguin method, we derive the formula for the interaction energy and force of identical and dissimilar spherical colloidal particles, valid up to the moderate potential. The agreement with exact numerical values is considerably improved on providing the surface potential ≤100 mV (for identical) and ≤75 mV (for dissimilar), the maximum relative errors are less than ±10%. For the identical and dissimilar spherical particles, our formula are best approximate expressions at present. |
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| Keywords: | Repulsive energy Repulsive force Spheres |
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