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Disulfide Functionalization of CB to Counter Reinforcement Loss from Heat Treatment.
| SBR/BR Compound (ϕ = 0.22) | NR Compound (ϕ = 0.19) | |||
|---|---|---|---|---|
| Carbon Black | tanδ at 60 °C | M300/M100 | tanδ at 60 °C | M300/M100 |
| CB1; Control, STSA = 75 m2/g, OAN = 102 | 0.257 | 4.12 | 0.169 | 5.31 |
| CB2; CB1 annealed for 2 h at 1400 °C | 0.329 | 2.20 | 0.192 | 3.16 |
| CB3; CB2 surface funct. with disulfide | 0.255 | 3.00 | 0.135 | 4.29 |
Data from U.S. Patent granted to Cabot Corporation [120].
