Synthesis and Ballistic Evaluation of Selected Transparent Polyurethane Block Copolymers

Abstract

A series of transparent polyurethane block copolymers has been synthesized in-house and cast into sheet specimens for ballistic evaluation. The ballistic performances were generally superior to polycarbonate and were found to increase with the following independent variations: higher cure temperature, longer room-temperature cure time, higher diisocyanate and diol content, and lower molecular weight (lower weight composition) of the polyether component. Concurrent high-speed photographs served to characterize the transient bowing of the polymer specimen, the velocities of plugs and fragments generated by the impact, and the FSP residual velocity.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1973
Accession Number
AD0773689

Entities

People

  • Anthony F. Wilde
  • Joseph M. Rogers
  • Richard W. Matton
  • Stanley E. Wentworth

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Block Copolymers
  • Bulletproof Glass
  • Cameras
  • Films
  • Materials
  • Mechanical Properties
  • Mechanics
  • Molecular Weight
  • Photographic Materials
  • Photographs
  • Photography
  • Polymeric Films
  • Polymers
  • Polyurethanes
  • Residuals
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Explosive Engineering.
  • Polymer Science and Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics