CNT-infused carbon fiber materials and process therefor
First Claim
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; and
a 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.
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Accused Products
Abstract
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.
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Citations
13 Claims
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1. A composition comprising a carbon nanotube (CNT)-infused carbon fiber material comprising:
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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; and a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification