Use of Oxidizing Agents in Rubber Vulcanization - Zinc Oxide-free Process
β Scribed by Barton, Bernard C.
- Book ID
- 127296228
- Publisher
- American Chemical Society
- Year
- 1950
- Weight
- 481 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0019-7866
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## Abstract The vulcanization of rubber by sulfur is a largeβscale industrial process that is only poorly understood, especially the role of zinc oxide, which is added as an activator. We used the highly symmetrical cluster Zn~4~O~4~ (__T__~d~) as a model species to study the thermodynamics of the
The effect of zinc oxide on the vulcanization enthalpy of various sulphur vulcanization systems has been studied. The enthalpy-zinc oxide plots reveal minima in the natural rubbe~sulphur unaccelerated system as well as in the synthetic polyisoprene-sulphur unaccelerated system, containing extracts o