Conductive fabric and manufacturing method thereof

Abstract

Provided are a conductive fabric and a manufacturing method thereof. The conductive fabric has a structure in which warp yarns and weft yarns are interwoven with each other, wherein at least one of the warp yarns and the weft yarns includes carbon nanotube fibers, the carbon nanotube fibers contain N-doped carbon nanotubes, the nitrogen content in each of the carbon nanotube fibers is between 1 wt% to 5 wt% based on the total weight of the carbon nanotube fiber, and the content of the N-doped carbon nanotubes in the conductive fabric is at least 0.1 wt% based on the total weight of the conductive fabric.

What is claimed is: 
     
         1 . A conductive fabric, having a structure in which warp yarns and weft yarns are interwoven with each other, wherein at least one of the warp yarns and the weft yarns comprises carbon nanotube fibers, the carbon nanotube fibers contain nitrogen-doped (N-doped) carbon nanotubes, the nitrogen content of each of the carbon nanotube fibers is between 1 wt% to 5 wt% based on the total weight of the carbon nanotube fiber, and the content of the N-doped carbon nanotubes in the conductive fabric is at least 0.1 wt% based on the total weight of the conductive fabric. 
     
     
         2 . The conductive fabric of  claim 1 , wherein the carbon nanotube fibers contain natural fiber material. 
     
     
         3 . The conductive fabric of  claim 2 , wherein the natural fiber material comprises cotton, linen, wool, rabbit hair, silk, tencel or coffee. 
     
     
         4 . The conductive fabric of  claim 1 , wherein the diameter of the carbon nanotube fibers is between 10 nm and 100 nm. 
     
     
         5 . The conductive fabric of  claim 1 , wherein the density of the carbon nanotube fibers is between 0.5 g/cm 3  and 1.8 g/cm 3 . 
     
     
         6 . The conductive fabric of  claim 1 , wherein the material of the weft yarns is the same as the material of the warp yarns. 
     
     
         7 . The conductive fabric of  claim 1 , wherein the material of the weft yarns is different from the material of the warp yarns. 
     
     
         8 . The conductive fabric of  claim 7 , wherein one of the warp yarns and the weft yarns comprises the carbon nanotube fibers, and the other of the warp yarns and the weft yarns comprises cotton fiber yarn, linen fiber yarn, wool fiber yarn, rabbit hair fiber yarn, silk fiber yarn, tencel fiber yarn, coffee fiber yarn, nylon fiber yarn, polyester fiber yarn, rayon fiber yarn, acrylic fiber yarn or polyurethane fiber yarn. 
     
     
         9 . The conductive fabric of  claim 8 , wherein the diameter of the fiber constituting the other of the warp yarns and the weft yarns is between 10 nm and 10 6  nm. 
     
     
         10 . A manufacturing method of a conductive fabric, comprising:
 growing nitrogen-doped (N-doped) carbon nanotubes on a substrate;   performing a drawing process to draw the N-doped carbon nanotubes to form carbon nanotube fibers, wherein the nitrogen content of each of the carbon nanotube fibers is between 1 wt% to 5 wt% based on the total weight of the carbon nanotube fiber;   performing a spinning process to spin the carbon nanotube fibers to form carbon nanotube fiber yarns; and   performing a weaving process to weave the carbon nanotube fiber yarns,   wherein the content of the N-doped carbon nanotubes in the conductive fabric is at least 0.1 wt% based on the total weight of the conductive fabric.   
     
     
         11 . The manufacturing method of  claim 10 , further comprising:
 mixing the carbon nanotubes with natural fiber material after forming the carbon nanotubes but before the drawing process.   
     
     
         12 . The manufacturing method of  claim 11 , wherein the natural fiber material comprises cotton, linen, wool, rabbit hair, silk, tencel or coffee. 
     
     
         13 . The manufacturing method of  claim 10 , wherein the diameter of the carbon nanotube fibers is between 5 nm and 100 nm. 
     
     
         14 . The manufacturing method of  claim 10 , wherein the density of the carbon nanotube fibers is between 0.5 g/cm 3  and 1.8 g/cm 3 . 
     
     
         15 . The manufacturing method of  claim 10 , wherein the carbon nanotube fiber yarns are used as one of the warp yarns and the weft yarns, and the material of the weft yarns is different from the material of the warp yarns during the weaving process. 
     
     
         16 . The manufacturing method of  claim 15 , wherein one of the warp yarns and the weft yarns comprises the carbon nanotube fibers, and the other of the warp yarns and the weft yarns comprises cotton fiber yarn, linen fiber yarn, wool fiber yarn, rabbit hair fiber yarn, silk fiber yarn, tencel fiber yarn, coffee fiber yarn, nylon fiber yarn, polyester fiber yarn, rayon fiber yarn, acrylic fiber yarn or polyurethane fiber yarn. 
     
     
         17 . The manufacturing method of  claim 16 , wherein the diameter of the fiber constituting the other of the warp yarns and the weft yarns is between 10 nm and 10 6  nm. 
     
     
         18 . The manufacturing method of  claim 10 , wherein the material of the weft yarns is the same as the material of the warp yarns.