| 纳米氧化锌在水介质中的分散性能研究 |
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| 引用本文： | 庞晋山,张海燕,曹标,宋传旺,毛凌波,陈进.纳米氧化锌在水介质中的分散性能研究[J].硅酸盐通报,2009,28(1):108-112. |
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| 作者姓名： | 庞晋山 张海燕 曹标 宋传旺 毛凌波 陈进 |
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| 作者单位： | 广东工业大学,广州,510000;新会出入境检验检疫局,江门,529100;广东工业大学,广州,510000;广东检验检疫局,广州,510000;新会出入境检验检疫局,江门,529100 |
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| 摘 要： | 纳米粉体的分散性能对提高分散体系的导热性能具有重要意义,试验选用纳米粒子在水介质中的Zeta电位和水合粒径来表征体系的分散稳定性,探讨不同分散剂种类及其浓度以及不同pH条件对ZnO水悬浮液稳定性的影响,并分析其作用机理.结果表明:Zeta电位与水合粒径有良好的对应关系,Zeta电位绝对值越高,水合粒径越小,表明体系分散稳定越好.pH值、分散剂种类及加入量是影响纳米ZnO水相体系分散稳定性的主要因素,不同的分散剂最佳分散条件不同.在 0.1% ZnO-H2O纳米流体中,在 pH=11.4,加入 0.05%十二烷基苯磺酸钠(SDBS)分散剂,悬浮液的稳定性最佳.
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| 关 键 词： | 纳米ZnO 分散剂 Zeta电位 水合粒径 分散稳定 |
Research on Dispersion of ZnO Nanoparticles in Aqueous Coating System |
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| PANG Jin-shan,ZHANG Hai-yan,CAO Biao,SONG Chuan-wang,MAO Ling-bo,CHEN Jin.Research on Dispersion of ZnO Nanoparticles in Aqueous Coating System[J].Bulletin of the Chinese Ceramic Society,2009,28(1):108-112. |
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| Authors: | PANG Jin-shan ZHANG Hai-yan CAO Biao SONG Chuan-wang MAO Ling-bo CHEN Jin |
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| Affiliation: | 1.Guangdong University of Technology;Guangzhou 510000;China;2.Xinhui Entry-Exit Inspection and Quarantine Bureau;Jiangmen 529100;3.Guangdong Entry-Exit Inspection and Quarantine Bureau;China |
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| Abstract: | The dispersion of nanoparticles is regarded as the guide of heat transfer enhancement,dispersion stability was token by Zeta potential and hydrodynamic size of nanoparticles in aqueous coating system,stability of aqueous ZnO was studied under different pH values,different dispersant types and mass fraction,then the function mechanism was analyzed. The results showed that the absolute value of Zeta potential had very corresponding relation with hydrodynamic size,the higher of absolute value of Zeta potential... |
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| Keywords: | nano ZnO dispersant Zeta potential hydrodynamic size dispersion stabilityte |
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