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| 纳米ZrO_2、Al_2O_3单相及混合粉体的分散稳定性研究 | |
| 引用本文： | 王进,王军霞,邵明伟. 纳米ZrO_2、Al_2O_3单相及混合粉体的分散稳定性研究[J]. 中国粉体技术, 2010, 16(4): 55-57. DOI: 10.3969/j.issn.1008-5548.2010.04.015 |
| 作者姓名： | 王进 王军霞 邵明伟 |
| 作者单位： | 西南科技大学,材料科学与工程学院,四川,绵阳,621010 |
| 基金项目： | 四川省教育厅重点项目 |
| 摘 要： | 以蒸馏水和无水乙醇作为分散介质,研究了六偏磷酸钠(NaPO3)6、聚乙二醇和聚丙烯酸对纳米Al2O3、纳米ZrO2单相及其混合粉体悬浮液分散稳定性的影响。结果表明:纳米Al2O3、ZrO2单相粉体在乙醇中的分散性较好,两者的混合粉体在水或乙醇中的分散性差别不大,主要取决于分散剂的种类,当pH=6～8时悬浮液最稳定,其中以聚丙烯酸为分散剂时分散效果最佳,六偏磷酸钠次之,聚乙二醇最差。 |
| 关 键 词： | 分散 纳米粉体 悬浮液 |
Dispersion Stability of Nano-sized ZrO2 or Al2O3 Powder and Their Complex Powder |
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| Wang Jin,Wang Junxia,Shao Mingwei. Dispersion Stability of Nano-sized ZrO2 or Al2O3 Powder and Their Complex Powder[J]. China Powder Science and Technology, 2010, 16(4): 55-57. DOI: 10.3969/j.issn.1008-5548.2010.04.015 | |
| Authors: | Wang Jin Wang Junxia Shao Mingwei |
| Abstract: | The influence of sodium hexametaphosphate((NaPO3)6),polyethylene glycol(PEG) and polyacrylic acid(PAA) on the dispersion and stability of nano-sized ZrO2 or Al2O3 single-phase and their complex powder suspensions were investigated by choosing distilled water and ethanol as dispersion mediums.The results showed that the dispersion of single-phase powder in the ethanol better than in the distilled water,while the dispersibility difference of mixed powder in the distilled water and ethanol was very small,it mainly depended on the types of dispersant.It was found that the stability of aqueous suspension was excellent when the pH value was 6 to 8,and PAA was the best dispersant to the nano-sized Al2O3-ZrO2 complex powder,the second was(NaPO3)6,PEG was the worst. |
| Keywords: | dispersant nano-particles suspensions |
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