3-Dimensionally Reinforced Nanocomposites

Case ID: 00538

Description

Background

 

The main advantage of composites and nanocomposites, in addition to their high specific strength and stiffness, is their ability to be tailored towards a specific loading condition, i.e., placing the load carrying fibers (or, e.g., Carbon Nanotubes, CNTs) where the loads and stresses are. Traditional composites designed for in-plane loading  utilize, e.g., unidirectional tapes or bi‑directional woven fabrics which could handle in‑plane loading and stresses. However, intralaminar and interlaminar stresses (especially in between the composite layers in a laminate) become a major problem for these configurations under various loading conditions, resulting in failures such as delamination.

 

Overview

 

 Researchers at the University of Hawaii invented 3‑dimensionally reinforced nanocomposites exhibiting much needed improvement in through‑the‑thickness and in-plane properties. The reinforcement is achieved by growing directionally‑aligned carbon nanotubes along the surface of a two‑dimensional fiber cloth. This patented invention introduces multifunctional capabilities to nanocomposites and enhances the needed interlaminar and intralaminar properties preventing or delaying delamination failures, among other Benefits & Improvements.

 

Benefits & Improvements

 

 3D reinforced nanocomposites demonstrate many advantages over traditional composites and nanocomposites:

  • improved mechanical properties
  • manipulation and control  of thermal expansion electrical and thermal conductivity
  • structural damping
  • enhanced strength, resiliency, toughness, and Modes I & II fracture toughness

 

Applications

 

  •  Space
  • Aerospace Automotive
  • Ships & Boats
  • Packaging Sporting goods
  • Reinforced adhesives for joining

 

 

Patent Information:
Inventors
Mehrdad Nejhad
Vinod Veedu
Anyuan Cao
Pulickel Ajayan

For information, contact:
Ken Takeuchi
Technology Licensing Associate
University of Hawaii
(808) 956-9749
kktakeuc@hawaii.edu
Keywords


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