New Interpretations for Stress-Strain Behavior of Rubber Vulcanizates

Akihiro Suzuki, Hidetoshi Oikawa, Kenkichi Murakami

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The cross-link density of DCP-cured natural rubber uniaxially deformed to various extension ratios at room temperature was measured. The cross-link density decreased characteristically with increasing extension ratio. A new model for the structure of the network is proposed in order to explain this decrease in cross-link density. The model can give a new interpretation of the stress-strain behavior of rubber vulcanizates. The birefringence of stretched rubber vulcanizates was determined using a polarizing microscope. The observed birefringence, Δt, can generally be factored into two parts: One is the birefringence of the amorphous phase, Δta; the other is the birefringence due to the strain-induced crystalline phase, Δtc; In the present paper, it has become feasible to separate Δt into Δta and Δtc.

Original languageEnglish
Pages (from-to)535-547
Number of pages13
JournalJournal of Macromolecular Science, Part B
Volume23
Issue number4-6
DOIs
Publication statusPublished - 1984 Aug 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry

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