| EFFECT OF POLYETHYLENEIMINE ON THE PROPERTIES OF CONCENTRATED SUSPENSIONS OF TITANIUM DIOXIDE MICROBEADS |
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| 引用本文： | GuanliXu LinaXu ShunlongPan GuangzhiSong. EFFECT OF POLYETHYLENEIMINE ON THE PROPERTIES OF CONCENTRATED SUSPENSIONS OF TITANIUM DIOXIDE MICROBEADS[J]. 中国颗粒学报, 2004, 2(4): 182-184 |
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| 作者姓名： | GuanliXu LinaXu ShunlongPan GuangzhiSong |
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| 作者单位： | [1]TechnicalInstituteofPhysicsandChemistry,ChineseAcademyofSciences,Beijing100101,China [2]Authortowhomcorrespondenceshouldbeaddressed,ChineseAcademyofSciences,Beijing100101,China |
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| 摘 要： | The effect of polyethyleneimine (PEI) concentration on the properties of titanium dioxide (TiO2) suspensions is studied with or without the addition of an electrolyte (barium acetate). Measurements of the apparent viscosity and the stability of TiO2 suspensions showed that PEI is an effective dispersant for TiO2 particles in suspension in the absence of an electrolyte, not only reducing the viscosity of the suspension but also increasing its stability. In the presence of an electrolyte, however, small quantities of polyethyleneimine could neither disperse the TiO2 particles nor de-crease the viscosity of the TiO2 suspensions; only PEI concentrations beyond saturation adsorption could perceptively improve the stabilitv of TiO2 suspensions.
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| 关 键 词： | 聚乙烯亚胺 二氧化钛 粘滞性 稳定性 玻璃微球体 折射系数 |
EFFECT OF POLYETHYLENEIMINE ON THE PROPERTIES OF CONCENTRATED SUSPENSIONS OF TITANIUM DIOXIDE MICROBEADS |
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| Guanli Xu,Lina Xu,Shunlong Pan and Guangzhi Song Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing ,China. EFFECT OF POLYETHYLENEIMINE ON THE PROPERTIES OF CONCENTRATED SUSPENSIONS OF TITANIUM DIOXIDE MICROBEADS[J]. China Particuology, 2004, 2(4): 182-184 |
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| Authors: | Guanli Xu Lina Xu Shunlong Pan Guangzhi Song Technical Institute of Physics Chemistry Chinese Academy of Sciences Beijing China |
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| Affiliation: | Guanli Xu*,Lina Xu,Shunlong Pan and Guangzhi Song Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100101,China |
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| Abstract: | The effect of polyethyleneimine (PEI) concentration on the properties of titanium dioxide (TiO2) suspen-sions is studied with or without the addition of an electrolyte (barium acetate). Measurements of the apparent viscosity and the stability of TiO2 suspensions showed that PEI is an effective dispersant for TiO2 particles in suspension in the absence of an electrolyte, not only reducing the viscosity of the suspension but also increasing its stability. In the pres-ence of an electrolyte, however, small quantities of polyethyleneimine could neither disperse the TiO2 particles nor de-crease the viscosity of the TiO2 suspensions; only PEI concentrations beyond saturation adsorption could perceptively improve the stability of TiO2 suspensions. |
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| Keywords: | polyethyleneimine titanium dioxide viscosity stability |
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