IP Library Granted Patent US 8,585,934
Granted Patent B2
US 8,585,934 · App. 12/707,617 · Granted Nov 19, 2013

Composites comprising carbon nanotubes on fiber

Inventors: Tushar K. Shah (Columbia, MD); Bradley W. Pietras (Shamong, NJ); Daniel Jacob Adcock (Columbia, MD); Harry C. Malecki (Abingdon, MD); Mark R. Alberding (Glen Arm, MD)
Assignee: Applied NanoStructured Solutions, LLC
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Quick Facts
Patent No.
US 8,585,934
App. No.
12/707,617
Granted
Nov 19, 2013
Kind
B2
Abstract

A composite composition includes a plurality of carbon nanotube (CNT)-infused fibers dispersed in a matrix material. The amount of carbon nanotubes in the composition is in a range between about 0.1% percent by weight to about 60 percent by weight of the composite.

Claims (37)

1. A tailored composite comprising:

a matrix material; and

a first plurality of carbon nanotube (CNT)-infused fibers dispersed in a first location of the matrix material and a second plurality of carbon nanotube-infused fibers dispersed in a second location of the matrix material;

wherein the CNT-infused fibers comprise carbon nanotubes that are grown in situ on an exterior surface of a fiber material and extend therefrom;

wherein the amount of carbon nanotubes in the tailored composite is in a range between about 0.1 percent by weight to about 60 percent by weight of the tailored composite; and

wherein the first plurality of carbon nanotube-infused fibers and the second plurality of carbon nanotube-infused fibers differ in any combination of CNT length, CNT density, or CNT alignment with respect to the fiber material to provide a differential enhancement in at least one property selected from the group consisting of mechanical, thermal, and electrical properties in each location of the tailored composite.

2. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 10 percent to about 60 percent by weight of the tailored composite.

3. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 15 percent to about 60 percent by weight of the tailored composite.

4. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 20 percent to about 60 percent by weight of the tailored composite.

5. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 25 percent to about 60 percent by weight of the tailored composite.

6. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 10 percent to about 50 percent by weight of the tailored composite.

7. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 20 percent to about 40 percent by weight of the tailored composite.

8. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 5 percent to about 10 percent by weight of the tailored composite.

9. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 10 percent to about 20 percent by weight of the tailored composite.

10. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 20 percent to about 30 percent by weight of the tailored composite.

11. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 30 percent to about 40 percent by weight of the tailored composite.

12. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 40 percent to about 50 percent by weight of the tailored composite.

13. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 50 percent to about 60 percent by weight of the tailored composite.

14. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is in a range between about 40 percent to about 60 percent by weight of the tailored composite.

15. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 10 percent by weight of the tailored composite.

16. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 15 percent by weight of the tailored composite.

17. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 20 percent by weight of the tailored composite.

18. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 25 percent by weight of the tailored composite.

19. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 30 percent by weight of the tailored composite.

20. The tailored composite of claim 1 , wherein the amount of carbon nanotubes in the tailored composite is about 35 percent by weight of the tailored composite.

21. The tailored composite of claim 1 , wherein the CNT-infused fibers comprise a fiber tow.

22. The tailored composite of claim 1 , wherein the CNT-infused fibers comprise a plurality of rovings.

23. The tailored composite of claim 1 , wherein the CNT-infused fibers comprise a fabric.

24. The tailored composite of claim 1 , wherein CNT-infused fibers are distributed homogenously throughout the matrix material.

25. The tailored composite of claim 1 , wherein carbon nanotubes are present in a concentration gradient throughout a portion of the matrix material.

26. The tailored composite of claim 1 , wherein CNT-infused fibers are distributed substantially only near the surface of the tailored composite.

27. The tailored composite of claim 1 , wherein the carbon nanotubes grown in situ on the fiber material are oriented in a pattern.

28. The tailored composite of claim 1 , wherein the carbon nanotubes grown in situ on the fiber material are disposed radially about the fiber material axes.

29. The tailored composite of claim 1 , wherein the carbon nanotubes grown in situ on the fiber material are disposed parallel to the fiber material axes.

30. The tailored composite of claim 1 , wherein a length of the carbon nanotubes differs in the first location and the second location within the tailored composite.

31. The tailored composite of claim 1 , wherein a density of the carbon nanotubes differs in the first location and the second location within the tailored composite.

32. The tailored composite of claim 1 , wherein an alignment of the carbon nanotubes differs in the first location and the second location within the tailored composite.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2011
From: LOCKHEED MARTIN CORPORATION
To: APPLIED NANOSTRUCTURED SOLUTIONS, LLC
Reel/Frame 025913/0473 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2010
From: SHAH, TUSHAR K.; PIETRAS, BRADLEY W.; ADCOCK, DANIEL JACOB; MALECKI, HARRY C.; ALBERDING, MARK R.
To: LOCKHEED MARTIN CORPORATION
Reel/Frame 024518/0740 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2010
From: LOCKHEED MARTIN CORPORATION
To: APPLIED NANOSTRUCTURED SOLUTIONS, LLC
Reel/Frame 024349/0133 →
Continuity (3)
Provisional Application 61263807 · Nov 23, 2009
Provisional Application 61153143 · Feb 17, 2009
Related Publication 20110024694A1 · Feb 3, 2011