Nanocomposites Research for Combat Ration Packaging

Abstract

Nanocomposites of ethylene co-vinyl alcohol (EVOH) and montmorillonite layered silicates (MLS) were processed by extrusion methods to produce cast and blown films. Wide angle x-ray diffraction and transmission electron spectroscopy (TEM) showed that all the films had an intercalated morphology. TEM photographs of the cast films displayed random alignment of the nanoparticles while the blown films showed an ordered alignment of the nanoparticles. The samples were equilibrated at various humidities and the mechanical and barrier properties were evaluated. The blown film nanocomposites had better Young's modulus values, at higher humidity, than the cast film nanocomposites. The oxygen and moisture barrier properties improved the most in the cast nanocomposite films. The EVOH nanocomposite cast film had 57% improvement in oxygen barrier properties at 0% relative humidity in comparison to the pure EVOH cast film.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA433139

Entities

People

  • Christopher Thellen
  • Danielle Froio
  • Jeanne Lucciarini
  • Jo A. Ratto

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Alkenes
  • Copolymers
  • Diffraction
  • Ethylenes
  • Humidity
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Modulus Of Elasticity
  • Nanocomposites
  • Nanoparticles
  • Phyllosilicates
  • Physical Properties
  • Resins
  • Vinyl Alcohol
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Materials Science
  • Nanocomposite Materials Science
  • Reinforced Composite Materials

Technology Areas

  • Biotechnology
  • Microelectronics
  • Microelectronics - Graphene