| 聚乙烯醇在Al2O3、SiO2颗粒上的吸附及对Zeta电位的影响 |
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| 引用本文： | 韦园红,虞大红,叶汝强,刘洪来,胡英.聚乙烯醇在Al2O3、SiO2颗粒上的吸附及对Zeta电位的影响[J].华东理工大学学报(自然科学版),2001,27(1):99-102. |
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| 作者姓名： | 韦园红 虞大红 叶汝强 刘洪来 胡英 |
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| 作者单位： | 华东理工大学化学系, |
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| 基金项目： | 国家自然科学基金资助项目(29736170) |
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| 摘 要： | 测定了超细Al
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| 关 键 词： | Zeta电位 高分子吸附 聚乙烯醇 氧化铝 二氧化硅 吸附量 等电点 吸附等温线 |
| 文章编号： | 1006-3080(2001)01-0099-04 |
Adsorption of Polyvinyl Alcohol on Al2O3, SiO2 and Its Effect on the Zeta Potential of Particles |
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| WEI Yuan-hong,YU Da-hong,YE Ru-qiang,LIU Hong-lai,HU Ying.Adsorption of Polyvinyl Alcohol on Al2O3, SiO2 and Its Effect on the Zeta Potential of Particles[J].Journal of East China University of Science and Technology,2001,27(1):99-102. |
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| Authors: | WEI Yuan-hong YU Da-hong YE Ru-qiang LIU Hong-lai HU Ying |
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| Abstract: | The adsorption isothermals of polyvinyl alcohol (PVA) on Al2O3 and SiO2 particles have been measured. The effect of NaCl on the adsorption of PVA has been inspected. It is found that the adsorption amount increases rapidly with increase of PVA concentration when NaCl concentration is higher than 0.1mol/L. Zeta potentials of Al2O3 and SiO2 particles with and without PVA adsorption have been obtained from the electrophoresis measurement. It is shown that the isoelectric point of SiO2 is not affected by the adsorption of PVA, while the isoelectric point of Al2O3 decreases with the adsorption of PVA. |
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