Apparatus and Techniques Used for Casting Films from Aromatic Heterocyclic Polymers.

Abstract

Techniques have been developed to convert raw polymers into films by casting from solutions and evaporating to dryness. One instrument has been developed to form films from highly volatile solvents and another to form films from corrosive nonvolatile solvents. The latter has the capability to control temperature, environment, and other factors significant in the process of casting. Formed films underwent post-treatment, such as leaching, drying, and thermal treatment. Inducing orientation by stretching has been attempted. Film structure has been investigated with x-ray diffraction. Preliminary work included films cast from BBB, PBI, and AB-PBI polymers. Casting (high strength) PRD-49 films was attempted without success.

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA011645

Entities

People

  • A. Wereta
  • D. R. Wiff
  • Matatiahu Gehatia

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Diffraction
  • Environment
  • Leaching
  • Orientation (Direction)
  • Wave Phenomena
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Polymer Science and Technology
  • Reinforced Composite Materials
  • Surface Coatings Technology.