Method for making carbon nanotube wire structure
US-2015368106-A1 · Dec 24, 2015 · US
Carbon nanotube sheet and production method for carbon nanotube sheet
US9902618B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9902618-B2 |
| Application number | US-201414895061-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2014 |
| Priority date | Jun 5, 2013 |
| Publication date | Feb 27, 2018 |
| Grant date | Feb 27, 2018 |
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Abstract
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A carbon nanotube sheet includes a carbon nanotube layer containing numerous vertically aligned carbon nanotubes and a fibrous carbonized layer that retains the proximal end portions of the carbon nanotubes. The carbon nanotube layer is configured such that the proximal end portions and distal end portions of the carbon nanotubes are inclined and the intermediate portions of the carbon nanotubes are entangled with one another.
First claim
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The invention claimed is: 1. A production method for a carbon nanotube sheet, comprising: a combining step of forming a composite sheet by thermally pressing a thermally carbonized sheet to carbon nanotubes; and a carbonizing step of carbonizing the thermally carbonized sheet in the composite sheet and forming the thermally carbonized sheet into a fibrous form being bonded and entangled with proximal end portions of the carbon nanotubes by heating the composite sheet in an atmosphere of inert gas. 2. The production method for the carbon nanotube sheet according to claim 1 , wherein bending of the composite sheet in the carbonizing step is restricted by a stiffening member. 3. The production method for the carbon nanotube sheet according to claim 1 , wherein the carbon nanotubes in the combining step are two layers of vertically aligned carbon nanotubes that are stacked by pressing the layers together. 4. The production method for the carbon nanotube sheet according to claim 3 , wherein in the two layers of the vertically aligned carbon nanotubes, the carbon nanotubes making up the respective layers vary in length and/or density. 5. The production method for the carbon nanotube sheet according to claim 1 , wherein the pressing of the thermally carbonized sheet to the carbon nanotubes in the combining step is to hold the thermally carbonized sheet with the vertically aligned carbon nanotubes from front and back sides of the sheet. 6. The production method for the carbon nanotube sheet according to claim 1 , wherein the thermally carbonized sheet is delivered from a location for the combining step to a location for the carbonizing step and is delivered in batches or continuously. 7. The production method for the carbon nanotube sheet according to claim 2 , wherein the carbon nanotubes in the combining step are two layers of vertically aligned carbon nanotubes that are stacked by pressing the layers together. 8. The production method for the carbon nanotube sheet according to claim 7 , wherein in the two layers of the vertically aligned carbon nanotubes, the carbon nanotubes making up the respective layers vary in length and/or density. 9. The production method for the carbon nanotube sheet according to claim 2 , wherein the pressing of the thermally carbonized sheet to the carbon nanotubes in the combining step is to hold the thermally carbonized sheet with the vertically aligned carbon nanotubes from front and back sides of the sheet. 10. The production method for the carbon nanotube sheet according to claim 2 , wherein the thermally carbonized sheet is delivered from a location for the combining step to a location for the carbonizing step and is delivered in batches or continuously.
Assignees
Inventors
Classifications
obtained by SEM · CPC title
- C01B31/0253Primary
Chemistry & Metallurgy · mapped topic
- C01B32/168Primary
After-treatment · CPC title
Nanotubes · CPC title
comprising carbon, e.g. graphite, composite carbon · CPC title
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Frequently asked questions
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- What does patent US9902618B2 cover?
- A carbon nanotube sheet includes a carbon nanotube layer containing numerous vertically aligned carbon nanotubes and a fibrous carbonized layer that retains the proximal end portions of the carbon nanotubes. The carbon nanotube layer is configured such that the proximal end portions and distal end portions of the carbon nanotubes are inclined and the intermediate portions of the carbon nanotube…
- Who is the assignee on this patent?
- Inoue Tetsuya, Imasaka Satoshi, Hitachi Shipbuilding Eng Co
- What technology area does this patent fall under?
- Primary CPC classification C01B31/0253. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).