analysis of the current situation and problems of carbon nanotubes nanocomposites（分析碳纳米管纳米复合材料的现状和存在的问题）.doc

Analysis of the current situation and problems of carbon nanotubes nanocomposites [Abstract] The article describes the structure and properties of carbon nanotubes, overview of carbon nanotube / polymer composites and polymer structural composites and polymer functional composite materials, the applied research, on this basis, , purified carbon nanotubes in composites process, scattered damage and interface issues, and an outlook on future carbon nanotube / polymer composite trends. [Keywords] carbon nanotubes, composite materials; structure, performance Since 1991, Tsukuba, Japan, NEC Labs physicist Sumio Iijima (Sumio Iijima) [1] first reported since the carbon nanotube, its unique atomic structure and properties caused great interest of scientists. Graphite layers of different carbon nanotubes can be divided into single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs). Carbon nanotubes with high specific surface area, mechanical properties (carbon nanotubes theoretical axis to the elastic modulus and tensile strength, respectively, for 1 ~ 2 TPa and 200Gpa), superior thermal and electrical properties (carbon nanotubes in heat under vacuum to a temperature up to 2800 ?C, the thermal conductivity is 2 times that of the diamond, the electronic The ampacity is 1000 times that of copper wire) [2-7]. carbon nanotubes These properties make it an ideal filler in the field of composite materials and polymers are easily processed, can be manufactured into the complex structure of the member, using the traditional processing method the polymer / carbon nanotube composites processing and manufacturing into a complex structure of the member, and does not destroy the structure of the carbon nanotubes in the process, thereby reducing production costs, therefore, the polymer / carbon nanotube composites been extensively studied. Depending on the application purpose, polymer / carbon nanotube composite structure divided into two categories o