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滴血贡献一篇关于CNTs的综述
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CARBON NANOTUBE COMPOSITES –MECHANICAL, ELECTRICAL, AND OPTICAL PROPERTIES CONTENTS I. Introduction................................................................................................................1 II. Basic consideration.....................................................................................................5 2.1 Carbon nanotubes.................................................................................................5 2.1.2 Manufacturing methods ............................................................................7 2.1.3 Properties of CNTs ...................................................................................9 2.2 CNT-based composites.......................................................................................12 2.2.1 Functionalization and dispersion of carbon nanotubes.............................12 2.2.2 CNT/ Polymer composites ......................................................................14 2.2.3 CNT/nanocrystals nanocomposites .........................................................17 2.2.4 Potential applications of CNTs and their composites...............................18 2.3 Theoretical background ......................................................................................19 2.3.1 Effective medium theory.........................................................................19 2.3.2 Percolation theory...................................................................................22 III.Sample preparation and investigation methods......................................................29 3.1 Materials and samples ........................................................................................29 3.1.1 Functionalization and dispersion of MWNTs..........................................29 3.1.2 Composite preparation............................................................................33 3.2 Experimental techniques ....................................................................................38 3.2.1 Tensile tests............................................................................................39 3.2.2 Nanoindentation .....................................................................................39 3.2.3 Rheometry..............................................................................................40 3.2.4 Dielectric spectroscopy...........................................................................40 3.2.5 Structural characterization (TEM, SEM, AFM).......................................41 3.2.6 Ellipsometry ...........................................................................................41 3.2.7 -potential...............................................................................................41 3.2.8 Optical spectroscopy...............................................................................42 IV.Results and discussion..............................................................................................43 4.1 Structural properties of the samples ....................................................................43 4.1.1 Silica coated MWNTs.............................................................................43 4.1.2 LBL structures........................................................................................46 4.1.3 Solution processed composites................................................................51 4.1.4 CNT/NPs................................................................................................ 53 4.2 Tensile strength of LBL composites................................................................... 58 4.3 Nanoindentation experiments............................................................................. 63 4.3.1 Data analysis and discussion on instrument calibration........................... 64 4.3.2 Nanoindentation of polymeric films ....................................................... 67 4.3.3 Nanoindentation of CNT-based composites............................................ 71 4.4 Rheology ........................................................................................................... 79 4.5 Dielectric spectroscopy...................................................................................... 86 4.6 Optical properties of the CNT/QD composites ................................................... 95 V. Summary................................................................................................................ 101 VI. References .............................................................................................................. 107 Appendix |
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