Wisconsin Alumni Research Foundation

Materials & Chemicals
Materials Chemicals
CARBON-BASED COMPOSITE MATERIALS WITH ENHANCED DYNAMIC PERFORMANCE
WARF: P220051US01

Inventors: Ramathasan Thevamaran, Jizhe Cai


The Invention
UW-Madison researchers have developed an efficient approach to augment the inter-fiber interactions in carbon nanotubes (CNTs) by introducing aramid nanofiber (ANF) links, which form stronger and reconfigurable interfacial hydrogen bonds and π−π stacking interactions that lead to synergistic performance improvement with failure retardation. Under supersonic impacts, strengthened interactions in CNT mats enhance their specific energy absorption up to 100 %, outperforming widely used bulk protective materials and nanomaterials. The distinct response time scales of hydrogen bonds at ultra-high strain rate deformations additionally lead to a strain-rate-dependent dynamic performance enhancement. These low-density, thermally stable nanofibrous materials may find use in extreme engineering applications such as defense and civilian protective applications (e.g. armor/impact shields) and aerospace.
Applications
Armor
Impact Shields &Materials
Aerospace Materials
 
Key Benefits
Higher Specific Penetration Energy Absorption
Lower Failure Rate
Additional Information
For More Information About the Inventors
For current licensing status, please contact Michael Carey at [javascript protected email address] or 608-960-9867

WARF