Epoxy resin composition, prepreg, and carbon fiber-reinforced composite material
US-2020010633-A1 · Jan 9, 2020 · US
Carbon nanotube-resin composite and method for manufacturing carbon nanotube-resin composite
US12480230B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12480230-B2 |
| Application number | US-202017639462-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2020 |
| Priority date | Sep 3, 2019 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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- Title
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Abstract
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A carbon nanotube-resin composite includes: a carbon nanotube assembled wire including a plurality of carbon nanotubes; and a resin, wherein in the carbon nanotube assembled wire, the carbon nanotubes are oriented at a degree of orientation of 0.9 or more and 1 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A carbon nanotube-resin composite comprising: a carbon nanotube assembled wire including a plurality of carbon nanotubes; and a resin, wherein the carbon nanotubes include a tube portion having a tubular shape and at least one cone portion having a conical shape that expands continuously in diameter from at least one end of the tube portion, in the carbon nanotube assembled wire, the carbon nanotubes are oriented at a degree of orientation of 0.9 or more and 1 or less, the carbon nanotube resin composite includes a plurality of the carbon nanotube assembled wires, the plurality of the carbon nanotube assembled wires are oriented and bundled in a direction along a longitudinal direction of each of the plurality of carbon nanotube assembled wires, and in the carbon nanotube resin composite, the resin is present between the plurality of the carbon nanotube assembled wires. 2 . The carbon nanotube-resin composite according to claim 1 , wherein the carbon nanotube-resin composite includes 0.1% by mass or more and less than 100% by mass of the resin. 3 . The carbon nanotube-resin composite according to claim 1 , wherein the resin is a thermosetting resin or a photo-curable resin. 4 . The carbon nanotube-resin composite according to claim 3 , wherein the thermosetting resin is a novolac type epoxy resin. 5 . The carbon nanotube-resin composite according to claim 1 , wherein the resin is a thermoplastic resin. 6 . The carbon nanotube-resin composite according to claim 5 , wherein the thermoplastic resin is a polymethylmethacrylate resin. 7 . The carbon nanotube-resin composite according to claim 1 , wherein in a Raman spectrum of the carbon nanotube-resin composite, a ratio D/G of a peak intensity G at a Raman shift of 1590±20 cm −1 and a peak intensity D at a Raman shift of 1350±20 cm −1 is 0 or more and 0.1 or less. 8 . A method for manufacturing the carbon nanotube-resin composite recited in claim 1 , the method comprising: growing a plurality of carbon nanotubes by growing one or more carbon nanotubes from each of a plurality of catalyst particles in a suspended state by supplying a carbon-containing gas to the plurality of catalyst particles; drawing the plurality of carbon nanotubes by applying a tensile force to the plurality of carbon nanotubes in the suspended state, thereby forming carbon nanotubes having a tube portion having a tubular shape and at least one cone portion having a conical shape that expands continuously in diameter from at least one end of the tube portion; orienting and assembling the plurality of carbon nanotubes in the suspended state in a direction along a flow of the carbon-containing gas to obtain a plurality of carbon nanotube assembled wires; adhering a volatile liquid including a resin to the plurality of carbon nanotube assembled wires while orienting and bundling the plurality of carbon nanotube assembled wires in a direction along a longitudinal direction of each of the plurality of carbon nanotube assembled wires; and evaporating the volatile liquid adhered to the plurality of carbon nanotube assembled wires to obtain the carbon nanotube-resin composite.
Assignees
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Classifications
by IR- or Raman-data · CPC title
Yarns or threads coated with polymeric solutions · CPC title
Nanocarbons · CPC title
Preparation · CPC title
involving continuous processes · CPC title
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Frequently asked questions
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- What does patent US12480230B2 cover?
- A carbon nanotube-resin composite includes: a carbon nanotube assembled wire including a plurality of carbon nanotubes; and a resin, wherein in the carbon nanotube assembled wire, the carbon nanotubes are oriented at a degree of orientation of 0.9 or more and 1 or less.
- Who is the assignee on this patent?
- Sumitomo Electric Industries, Univ Tsukuba
- What technology area does this patent fall under?
- Primary CPC classification D01F9/1272. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Nov 25 2025 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).