Relationships between Polyurethane Elastomer Structure and Ageing Properties: Part 2: Effect of Backbone Polyol

Abstract

The effects of changes in the chemical structure of polyurethanes are being studied in order that elastomers possessing a satisfactory balance between resistance to ageing and initial mechanical properties may be prepared. The present investigation considers the effects of varying the backbone polyol on the ageing properties of polyurethane elastomers, using a variety of polyether and polyester polyols of molecular weights 650 - 2000 in toluene di-isocyanate (TDI) prepolymers crosslinked with 1,1',1''-trimethylol propane (TMP). In addition, a hydroxyl-terminated polybutadiene urethane elastomer together with a hydroxyl-terminated polybutadiene-polyether blend, were assessed for comparison.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0745982

Entities

People

  • B. E. Brokenbrow
  • D. Sims
  • John Wright

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Alkenes
  • Biomedical And Dental Materials
  • Elastomers
  • Hardness
  • Hydroxyl Terminated Polybutadiene
  • Materials Laboratories
  • Mechanical Properties
  • Mixtures
  • Molecular Weight
  • Physical Properties
  • Polybutadiene
  • Polymeric Films
  • Resistance
  • Standards
  • Synthetic Rubber
  • Tensile Properties
  • Tensile Strength

Fields of Study

  • Chemistry
  • Materials science

Readers

  • Polymer Science and Engineering.