往复射流分散与超声分散对纳米碳管在不饱和聚酯中分散效果的研究  

Study on Dispersions of Carbon Nanotubes in Unsaturated Polyester Resin Prepared by Reciprocating Fluid Injection Process and Ultrasonication Process

作　　者：曹晓非[1] 孙康宁[1] 孙昌[1] 冷亮[1] 刘晓飞[1] 赵琰[1] 

机构地区：[1]山东大学材料液态结构及其遗传性教育部重点实验室,工程陶瓷山东省重点实验室,济南250061

出　　处：《人工晶体学报》2008年第5期1255-1259,共5页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.50672051);863项目基金(No.2007AA021800)

摘　　要：分别采用超声分散法和本课题组研究的新技术-往复射流分散法对一系列含不等量多壁纳米碳管的前驱体混合物进行了分散,并将其固化制得了不同的复合材料。其中,前驱体混合液的粘度通过旋转粘度计测定,并使用扫描电镜观测最终所得复合材料中纳米碳管的分布状态。检测结果表明,一方面,往复射流分散工艺相对于超声分散更有利于纳米碳管在聚合物中的分散,而且碳管的分散均匀程度随工作次数的增加而有所提升。但另一方面,前驱体混合液的粘度同时亦随之大幅度下降,而这将减弱后续的前驱体固化过程的工艺性。A series of precursor mixtures containing different amounts of multi-walled carbon nanotubes were dispersed by uhrasonication process and reciprocating fluid injection process developed by the research group which consists of authors of this paper. And different kinds of final composites were prepared when these precursor mixtures cured. The viscosities of precursor fluids were investigated by rotary viscosimeter, and the distributions of carbon nanotubes in final composites were characterized by SEM. On one hand, the results illustrate that compared to uhrasonication, reciprocating fluid injection process makes for the dispersion of carbon nanotubes in the polymer matrix, and the distribution of carbon nanotubes in final composite become more homogeneous with increasing reciprocating motion times. On the other hand, the viscosity of mixture fluid increases remarkably at the same time, thus, it makes the processing property of subsequent solidification of precursor mixture become poor.

关 键 词：多壁纳米碳管 超声分散 往复射流分散 分散性 

分 类 号：TB332[一般工业技术—材料科学与工程]