COAGENTS FOR IMPROVING ELASTIC RECOVERY IN POLYESTER URETHANE ELASTOMERS.

Abstract

A number of chemicals were evaluated as coagents in the peroxide vulcanization of polyester urethanes to determine their ability to produce vulcanizates with good elastic recovery. Several coagents evaluated with high levels (6 pphr) of peroxide produced vulcanizates with improved elastic recovery compared with vulcanizates crosslinked with high peroxide alone. Tensile strength was unaffected while modulus and hardness increased and elongation decreased. Certain coagents when evaluated with low levels (3 pphr) of peroxide produced vulcanizates with improved elastic recovery and only slightly decreased tensile strength compared with vulcanizates cured with high peroxide alone. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0629972

Entities

People

  • John A. Williams

Tags

DTIC Thesaurus Topics

  • Elastomers
  • Elongation
  • Hardness
  • Macromolecules
  • Molecules
  • Peroxides
  • Polyesters
  • Polymers
  • Recovery
  • Synthetic Polymers
  • Tensile Strength
  • Urethanes
  • Vulcanizates
  • Vulcanization

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.