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Specific heats of rubber compounds

  • Changwoon Nah
  • , Je Hwan Park
  • , Choon Tack Cho
  • , Young Wook Chang
  • , Shinyoung Kaang
  • Provincial College of Damyang
  • Kumho Tire Co., Inc.
  • Hanyang University
  • Chonnam National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The specific heats of rubber compounds are very important not only for the thermodynamic calculations in various rubber processings; mixing, extrusion, calendering, and vulcanization, etc., but also for the service life of the final products under repeated stressing conditions. In this study, the specific heats of various compounding ingredients and their compounds for tires were determined using a differential scanning calorimeter (DSC) in the temperature range from 45 to 95°C. The determined specific heats, Cp, were compared with the previous published results for natural rubber (NR), styrene-butadiene rubber (SBR), polybutadiene rubber (BR), and isoprene-isobutyl rubber (IIR). The effects of carbon black loading and vulcanization on the specifics heats were investigated. The measured specific heats of the compounds were compared with the calculated values based on the fractional summation of the specific heat of each compounding ingredient.

Original languageEnglish
Pages (from-to)1513-1522
Number of pages10
JournalJournal of Applied Polymer Science
Volume72
Issue number12
DOIs
StatePublished - 1999.01.1

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