Magnetic and Electromagnetic Evaluation of the Iron Nanoparticle filled Polyurethane Nanocomposites

Abstract

The magnetic and electromagnetic wave absorption behavior of a flexible ironnanoparticle reinforced polyurethane nanocomposite is reported. Surface-initiated polymerization (SIP) method was utilized to fabricate high quality nanocomposites with uniform particle distribution and tunable particle loading (up to 65 wt.%). The enhancement of coercive force is observed when the nanoparticles are embedded into the polymer matrix Electromagnetic wave absorption performance at a discrete frequency as studied by metal-backed reflection loss indicates that the SIP nanocomposites can save the weight up to 50% compared to the composite counterpart with micron-size particles.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2007
Accession Number
ADA503359

Entities

People

  • Amar B. Karki
  • David P. Young
  • H. Thomas Hahn
  • Monica Moldovan
  • Sung Park
  • Suying Wei
  • Zhanhu Guo

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Bandwidth
  • Coercivity
  • Composite Materials
  • Films
  • Frequency
  • Frequency Bands
  • Magnetic Materials
  • Magnetic Nanoparticles
  • Magnetic Properties
  • Materials
  • Materials Science
  • Nanocomposites
  • Nanoparticles
  • Particles
  • Physical Properties
  • Polyurethanes

Fields of Study

  • Materials science

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Nanocomposite Materials Science
  • Reinforced Composite Materials

Technology Areas

  • Biotechnology