Polyisoprene was vulcanized with the binary accelerator system tetramethylthiuram disulfide-2-mercaptobenzothiazole (TMTD-MBT) in the absence of ZnO. Samples were heated in a DSC at a programmed rate, the reaction was stopped a t points along the thermal curve, and the system was analyzed. Extractab
Tetramethylthiuram disulfide and 2-mercaptobenzothiazole as binary accelerators in sulfur vulcanization. II. Exchange reactions between the accelerators and their zinc salts in the absence of rubber
โ Scribed by B. V. M. K. Giuliani; W. J. McGill
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 618 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
Polyisoprene was vulcanized with binary accelerator systems comprising mixtures of the zinc salts of tetramethylthiuram disulfide (TMTD) and 2-mercaptobenzothiale (MBT). Samples were heated in a DSC at a programmed rate, the reaction was stopped at points along the thermal curve, and the system was
Stearic and benzoic acids were heated with 2-bisbenzothiazole-2,2ะ-disulfide (MBTS)/sulfur/ZnO and tetramethylthiuram disulfide (TMTD)/sulfur/ZnO isothermally at 150ยฐC and in a DSC at 2.5ยฐC/min, in the absence of rubber. The acids readily reacted with ZnO, and at vulcanization temperatures, little o
Polyisoprene was vulcanized by 2-bisbenzothiazole-2,2ะ-disulfide (MBTS)/ sulfur and tetramethylthiuram disulfide (TMTD)/sulfur in the absence and presence of benzoic and stearic acids. It was found that the crosslink density of MBTS vulcanizates is halved by the addition of carboxylic acids and this