CNT-infused carbon fiber materials and process therefor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-009/00
D02G-003/00
D02G-003/16
D03D-015/00
D04H-001/4242
D04H-001/76
D06M-011/74
C01B-031/02
B01J-023/74
B01J-023/745
B01J-023/75
B01J-023/755
D06M-101/40
출원번호
US-0611101
(2009-11-02)
등록번호
US-8951632
(2015-02-10)
발명자
/ 주소
Shah, Tushar K.
Gardner, Slade H.
Alberding, Mark R.
Malecki, Harry C.
출원인 / 주소
Applied NanoStructured Solutions, LLC
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
4인용 특허 :
159
초록▼
A composition includes a carbon nanotube (CNT)-infused carbon fiber material that includes a carbon fiber material of spoolable dimensions and carbon nanotubes (CNTs) infused to the carbon fiber material. The infused CNTs are uniform in length and uniform in distribution. The CNT infused carbon fibe
A composition includes a carbon nanotube (CNT)-infused carbon fiber material that includes a carbon fiber material of spoolable dimensions and carbon nanotubes (CNTs) infused to the carbon fiber material. The infused CNTs are uniform in length and uniform in distribution. The CNT infused carbon fiber material also includes a barrier coating conformally disposed about the carbon fiber material, while the CNTs are substantially free of the barrier coating. A continuous CNT infusion process includes: (a) functionalizing a carbon fiber material; (b) disposing a barrier coating on the functionalized carbon fiber material (c) disposing a carbon nanotube (CNT)-forming catalyst on the functionalized carbon fiber material; and (d) synthesizing carbon nanotubes, thereby forming a carbon nanotube-infused carbon fiber material.
대표청구항▼
1. A composition comprising a carbon nanotube (CNT)-infused carbon fiber material comprising: a carbon fiber material of spoolable dimensions;carbon nanotubes (CNTs) infused to said carbon fiber material by growing the CNTs in the presence of transition metal nanoparticles; wherein said CNTs are uni
1. A composition comprising a carbon nanotube (CNT)-infused carbon fiber material comprising: a carbon fiber material of spoolable dimensions;carbon nanotubes (CNTs) infused to said carbon fiber material by growing the CNTs in the presence of transition metal nanoparticles; wherein said CNTs are uniform in length and uniform in distribution; anda barrier coating conformally disposed about the carbon fiber material, the barrier coating separating the carbon fiber material from transition metal nanoparticles used for growing the CNTs and said CNTs being substantially free of said barrier coating; wherein the barrier coating is selected from the group consisting of an alkoxysilane, an alumoxane, spin on glass, and glass nanoparticles. 2. The composition of claim 1, wherein the infusion of CNTs to the carbon fiber material comprises a bonding motif selected from direct bonding of the CNTs to the carbon fiber material, indirect bonding via a transition metal nanoparticle catalyst disposed between the CNTs and the carbon fiber material, indirect bonding via a transition metal nanoparticle catalyst and barrier coating disposed between the CNTs and the carbon fiber material, indirect bonding via the barrier coating disposed between the CNTs and the carbon fiber material, and mixtures thereof. 3. The composition of claim 1, where said CNTs have a length from about 1 micron to about 500 microns. 4. The composition of claim 1, wherein said CNTs have a length from about 1 micron to about 10 microns. 5. The composition of claim 1, wherein said CNTs have a length from about 10 microns to about 100 microns. 6. The composition of claim 1, wherein said CNTs have a length from about 100 microns to about 500 microns. 7. The composition of claim 1, wherein said uniformity of distribution is characterized by a density up to about 15,000 nanotubes per micron squared (μm2). 8. The composition of claim 1, wherein said carbon fiber material is selected from a carbon filament, a carbon tow, a carbon yarn, a carbon tape, a unidirectional carbon tape, a carbon fiber-braid, a woven carbon fabric, a non-woven carbon fiber mat, a carbon fiber ply, and a 3D woven structures. 9. The composition of claim 1, wherein said CNTs are selected from the group consisting of single-walled CNTs, double-walled CNTs, multi-walled CNTs, and mixtures thereof. 10. The composition of claim 1, wherein said CNTs are multi-walled CNTs. 11. The composition of claim 1 further comprising a sizing agent selected from a surfactant, an anti-static agent, a lubricant, siloxanes, alkoxysilanes, aminosilanes, silanes, silanols, polyvinyl alcohol, starch, and mixtures thereof. 12. The composition of claim 1 further comprising a matrix material selected from an epoxy, a polyester, a vinylester, a polyetherimide, a polyetherketoneketone, a polyphthalamide, a polyetherketone, a polytheretherketone, a polyimide, a phenol-formaldehyde, and a bismaleimide. 13. The composition of claim 1, wherein the electrical resistivity of said carbon nanotube-infused carbon fiber material is lower than the electrical resistivity of said carbon fiber material.
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