Ultrathin carbon fibers with various structures

Details Ultrathin carbon fibers with various structures Ultrathin carbon fibers with various structures

D - Textiles, Paper

01

F

D01F 9/127 (2006.01) C01B 31/02 (2006.01)

Patent

CA 2561917

A microscopic carbon fiber formed of a fiber-like substance of such a structure that cylindrical graphen sheets are stacked on each other in a right- angled direction to the axis thereof, wherein the sheets forming a cylinder comprise a polygonal cross section perpendicular to the axis thereof, the maximum diameter of the cross section is 15 to 100 nm, an aspect ratio is 105 or less, and ID/IG measured by Raman spectroscopic analysis is 0.1 or less. By adding a small amount of carbon fiber, physical properties such as electric characteristics, mechanical properties, and thermal properties can be increased without impairing the characteristics of a matrix.

Il est prévu une fibre de carbone microscopique formée d'une substance en forme de fibre d'une structure permettant d'empiler des feuilles graphiques cylindriques les unes sur les autres à angle droit par rapport à l'axe de celles-ci, tandis que les feuilles formant un cylindre comprennent une section transversale polygonale perpendiculaire à l'axe de celles-ci, le diamètre maximal de la section transversale est compris entre 15 et 100 nm, un rapport d'allongement inférieur ou égal à 10<5> et un rapport ID/IG mesuré par analyse spectroscopique Raman inférieur ou égal à 0,1. En ajoutant une petite quantité de fibre de carbone, on peut améliorer des propriétés physiques comme les caractéristiques électriques, des propriétés mécaniques et des propriétés thermiques sans compromettre les caractéristiques d'une matrice.

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