Comparative study among TMTD, TBzTD, and ZBEC accelerators in isobutylene-isoprene elastomer vulcanization

Gobbi Vinicius Guedes; da Silva Talita Goulart; Cunha Matheus SantosMendonca Tiago dos SantosGobbi Vitor Guedesda Silva Moreira Thire Rossana MaraMendonca Roberta Helena

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Comparative study among TMTD, TBzTD, and ZBEC accelerators in isobutylene-isoprene elastomer vulcanization

机译：Comparative study among TMTD, TBzTD, and ZBEC accelerators in isobutylene-isoprene elastomer vulcanization

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Accelerators such as tetramethylthiuram disulfide (TMTD) are responsible for releasing nitrosamines, considered carcinogenic by international organizations. Tetrabenzylthiuram disulfide (TBzTD) and zinc dibenzyldithiocarbamate (ZBEC) are indicated as substituents of TMTD for not releasing noxious nitrosamines. Thus, the objective of this work was to compare the use of TMTD, TBzTD, and ZBEC accelerators in the production of isobutylene-isoprene rubber compounds. It was evaluated the effect of TBzTD/mercaptobenzothiazole and ZBEC/N-cyclohexyl-2-benzothiazolesulfenamide pairs in the rheological properties and the first pair achieved better results. Subsequently, it was evaluated compounds containing TBzTD and ZBEC accelerators separately. The experimental design data of the obtained maximum torque were correlated by an interpolation method (thin-plate spline interpolation method). Physical-mechanical and thermodynamic measurements showed a decrease in the mechanical properties of TBzTD and ZBEC compounds. Thermogravimetric analysis did not indicate thermal differences between the compounds, Fourier transform infrared and swelling degree analyses corroborated the difference found in the crosslink densities of the compounds. (c) 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48965.

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《Journal of Applied Polymer Science》 |2020年第34期|共11页
作者
Gobbi Vinicius Guedes; da Silva Talita Goulart; Cunha Matheus SantosMendonca Tiago dos SantosGobbi Vitor Guedesda Silva Moreira Thire Rossana MaraMendonca Roberta Helena;
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Univ Fed Rural Rio de Janeiro, DEQ IT, Rod BR 465, BR-23890000 Seropedica, RJ, Brazil;

Univ Estado Rio de Janeiro, Inst Fis AD Tavares, Dept Fis Teor, R Sao Francisco Xavier 524, BR-20550013 Rio De Janeiro, Brazil;

Inst Fed Rio de Janeiro, Dept Quim, R Lucio Tavares 1045, BR-26530060 Nilopolis, RJ, BrazilUniv Fed Rio de Janeiro, PEMM, COPPE, POB 68505, BR-21941972 Rio De Janeiro, RJ, Brazil;

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正文语种英语
中图分类高分子化合物工业（高聚物工业）;
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elastomers; mechanical properties; rubber; theory and modeling; thermogravimetric analysis (TGA);

Comparative study among TMTD, TBzTD, and ZBEC accelerators in isobutylene-isoprene elastomer vulcanization

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