碳纳米管/聚合物复合材料加工过程中原位取向方法与技术

The Methods and Technique of Alignment of Carbon Nanotubes during the Processing of CNTs/Polymer Composite Materials

碳纳米管具有优异的力学、电学等性能,但是在聚合物复合材料中的无规状态不能发挥出其自身的优异性能。本文从碳纳米管/聚合物复合材料的加工过程实现取向增强入手,结合自己的研究成果,综述了在外力、电场、磁场、液晶诱导等作用下制备取向碳纳米管/聚合物复合材料。可以看出,经过精心设计的力场、电场、磁场和液晶作用可以使碳纳米管在聚合物复合材料加工过程中取向,并进而提高了力学和电学性能,但取向程度均有待提高。

Carbon nanotubes （CNTs） possess excellent mechanical and electrical properties, but the random state of CNTs in their composite materials limits greatly to embody these performance. The approaches to align CNTs in composite materials processing were summarized in this paper. The main approaches including external force, electric field, magnetic field, liquid crystalline phase were introduced and theadvantages and disadvantages of these approaches were evaluated. It can be concluded that the carefully designed force field, electric field, magnetic field and liquid crystalline phase enables CNTs to align in polymer composites processing, and thus improve the mechanical and electrical properties of polymer composites but the degree of alignment in all mentioned approaches has to be improved in the future.