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纳米Si₃N₄粉末分散工艺研究

Research on Nano-Si₃N₄ Dispersion Technology

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【Author】 TIAN Chun-yan~ 1,2,LIU Ning~1 (1. College of Matericls Science and Engineering, Hefei University of Technology,Hefei 230009; 2. Dept. of Mechanical Engineering,Hefei University, Hefei 230022)

【机构】合肥工业大学材料科学与工程学院；合肥工业大学材料科学与工程学院合肥230009合肥学院机械工程系；合肥230022；合肥230009；

【摘要】研究了纳米Si3N4粉末的分散性能,得到了优化的分散工艺参数。实验结果表明,将纳米Si3N4进行超声分散,可以改善其分散状况;加入适量的表面活性剂能改善Si3N4的分散效果,阳离子型表面活性剂的分散效果优于非离子型表面活性剂;分散体系的pH值也影响纳米Si3N4粉的分散效果。更多还原

【Abstract】 After research on the dispersion properties of nano-Si₃N₄ powder, the optimal parameter of dispersion technology is obtained. Experimental results show that the dispersion situation of nano-Si₃N₄ powder can be improved after nano-Si₃N₄ is carried out ultrasonic dispersion. The introduction of a certain amount of surfactant can enhance the dispersion effect of nano-Si₃N₄ powder. The effect of cationic surfactant is superior to that of nonionic surfactant. pH values of disperse system also have influence on the dispersion effect.更多还原