About the activation energies of the main and secondary relaxations in cured styrene butadiene rubber
✍ Scribed by Ada Ghilarducci; Horacio Salva; Angel J. Marzocca
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 352 KB
- Volume
- 113
- Category
- Article
- ISSN
- 0021-8995
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The cure index and apparent activation energy of vulcanization of one grade of natural rubber (SMR L) and two grades of epoxidized natural rubbers (ENR 25 and ENR 50) were studied in the presence of three types of antioxidants [viz., 2,2Јmethylene-bis(4-methyl-6-tertbutylphenol) (AO 2246), poly-2,2,
## Abstract Polybutadiene (BR) and styrene–butadiene (SBR) rubbers containing the same loading of precipitated silica nanofiller were prepared. The silica surfaces were pretreated with bis(3‐triethoxysilylpropyl) tetrasulfide to chemically bond the silica to the rubber. The rubber compounds were mi