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
Impact Shields &Materials
Aerospace Materials
Key Benefits
Higher Specific Penetration Energy Absorption
Lower Failure Rate
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