Functionalization of Carbon Nanotubes into Materials with High Compressive Strengths

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$69,998.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
W912HZ-08-C-0013
Award Id:
81516
Agency Tracking Number:
A072-128-1472
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
9063 Bee Caves Road, Austin, TX, 78733
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
625120902
Principal Investigator:
Rock Rushing
Principal Investigator
(512) 263-2101
rrushing@tri-austin.com
Business Contact:
Monte Fellingham
Contracts Adminstrator
(512) 263-2101
mfellingham@tri-austin.com
Research Institution:
n/a
Abstract
High-strength concrete is vital in most fixed protective structures and ceramics are likewise critical for the containment of blast fragments and bullet penetrators. Concrete and ceramics exhibit mechanically brittle behavior due to their microstructure. The utilization of carbon nanotubes as reinforcements for concrete and ceramic materials has been limited, in part, because of their inherent hydrophobic character. Typical approaches to increase the hydrophilic nature of carbon nanotubes include functionalization through oxidation and/or reaction with reactive species. Many of these techniques for CNT1/2s can result in degradation of sidewall integrity and reductions in mechanical, thermal, and electrical properties of the nanotubes. TRI-Austin has identified an approach that will address both the issues of matrix compatibility and improved adhesion of carbon nanotubes in inorganic matrix materials such as concrete and ceramics. This approach is based on the mechanisms of adhesion resulting from helical wrapping and covalent attachment of carbon nanotubes with inorganic macromolecules. TRI-Austin will be teaming with a leading producer of carbon nanotubes that has multiple pilot plants and commercial demonstration units for the production of nanotubes. CNT1/2s have the potential to increase the mechanical properties, including fracture toughness, of inorganic composites by inducing fiber pull-out and bridging, interfacial debonding, crack deflection and pinning effects during fracture . These improvements will potentially affect the ability to design lighter weight structural concretes and ballistic armors.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government