THE RELATIONSHIP BETWEEN HE CHANGE IN STRESS AND BIREFRINGENCE DURING THE CRYSTALLIZATION OF RUBBER DURING RELAXATION,

Abstract

Stress and birefringence are simultaneously measured during the relaxation (at constant length) of natural rubber vulcanizate at room temperature. At higher elongations, crystallization results in an enhanced decrease in stress and an increase in birefringence during the relaxation. An attempt is made to quantitatively correlate these observations utilizing the Flory theory of stress on crystallizing rubbers and the Kuhn-Treloar theory of birefringence of rubbery networks. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 28, 1963
Accession Number
AD0425489

Entities

People

  • K. Sasaguri
  • Richards S. Stein
  • W. Yau

Organizations

  • University of Massachusetts Amherst

Tags

DTIC Thesaurus Topics

  • Amorphous Materials
  • Birefringence
  • Critical Temperature
  • Crystallization
  • Elastomers
  • Elongation
  • Glass Transition Temperature
  • Macromolecules
  • Materials
  • Molecules
  • Natural Rubber
  • Observation
  • Rubber
  • Transition Temperature
  • Vulcanizates

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.