Effect of Temperature and Oxygen on the Strength of Elastomers
Abstract
Measurements have been made of the tear energy G of SBR and BR vulcanizates as a function of rate of tearing, temperature, and air pressure. Approximately linear relations were obtained between the logarithm of the rate of tearing at a fixed energy input and the reciprocal of absolute temperature, over the range 25 to 130 C. Apparent activation energies of 20 to 32 kcal/mole were deduced for the tear strength, much larger than predicted by the WLF relation for changes in viscous losses with temperature far above Tg.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1991
- Accession Number
- ADA233535
Entities
People
- Alan Neville Gent
- Ginger L. Liu
- T. Sueyasu
Organizations
- University of Akron