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材料工程  2013 

纳米碳化硅颗粒的团聚及分散的研究进展

DOI: 10.3969/j.issn.1001-4381.2013.09.017, PP. 84-90

Keywords: 纳米碳化硅,团聚,分散剂,pH值,黏度,Zeta电位

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Abstract:

介绍了微粒团聚机理、团聚类型及其区别;在介绍软团聚处理方法的基础上,综述了pH值、悬浮液黏度及分散剂类型对纳米碳化硅分散效果的影响;阐述了自然碳化硅的带电状态、化学成分及其表面改性情况;在列举了添加分散剂前后纳米碳化硅等电点(IEP)的基础上,重点分析了一种新的分散剂—甲苯酰-聚乙烯亚胺的分子结构及工作原理,同时从吸附量、悬浮液黏度及Zeta电位三个方面与传统分散剂作了对比;最后,根据人们对团聚机理的认识及纳米碳化硅分散的研究现状,在未来的研究中不仅要侧重于纳米碳化硅性质、颗粒微观结构的研究,而且要注重纳米碳化硅的工业生产和制备以及分散剂的优化。

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