Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques
Abstract This paper investigated the formation of crosslinks in natural rubber compounds in the vulcanization systems: conventional (CV), semi-efficient (SEV), and efficient (EV), processed with three types of accelerators: MBTS (dibenzothiazole disulfide), TMTD (tetramethylthiuram disulfide) and CB...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2021-07-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700214&tlng=en |
| _version_ | 1798019374752202752 |
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| author | Carlos Toshiyuki Hiranobe Gabriel Deltrejo Ribeiro Giovanni Barrera Torres Elton Aparecido Prado dos Reis Flávio Camargo Cabrera Aldo Eloizo Job Leonardo Lataro Paim Renivaldo José dos Santos |
| author_facet | Carlos Toshiyuki Hiranobe Gabriel Deltrejo Ribeiro Giovanni Barrera Torres Elton Aparecido Prado dos Reis Flávio Camargo Cabrera Aldo Eloizo Job Leonardo Lataro Paim Renivaldo José dos Santos |
| author_sort | Carlos Toshiyuki Hiranobe |
| collection | DOAJ |
| description | Abstract This paper investigated the formation of crosslinks in natural rubber compounds in the vulcanization systems: conventional (CV), semi-efficient (SEV), and efficient (EV), processed with three types of accelerators: MBTS (dibenzothiazole disulfide), TMTD (tetramethylthiuram disulfide) and CBS (n-cyclohexyl 2-benzothiazole sulfenamide). The cross-linked densities were determined by organic solvent swelling, dynamic mechanical analysis (DMA), stress vs strain, and low-field nuclear magnetic resonance, the latter being the reference technique for comparison with the other results. It was found that the choice of accelerator type influences the processing time and the cross-linked density of the vulcanizate. The four techniques showed close values of cross-linked density for natural rubber compounds, demonstrating that the analytical techniques studied can be applied to determine cross-linked density. |
| first_indexed | 2024-04-11T16:39:41Z |
| format | Article |
| id | doaj.art-bdd0f1a1530a421d920974e0263b72a6 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T16:39:41Z |
| publishDate | 2021-07-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-bdd0f1a1530a421d920974e0263b72a62022-12-22T04:13:42ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392021-07-0124suppl 110.1590/1980-5373-mr-2021-0041Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical TechniquesCarlos Toshiyuki Hiranobehttps://orcid.org/0000-0002-5182-2018Gabriel Deltrejo RibeiroGiovanni Barrera TorresElton Aparecido Prado dos ReisFlávio Camargo CabreraAldo Eloizo JobLeonardo Lataro PaimRenivaldo José dos Santoshttps://orcid.org/0000-0002-0079-6876Abstract This paper investigated the formation of crosslinks in natural rubber compounds in the vulcanization systems: conventional (CV), semi-efficient (SEV), and efficient (EV), processed with three types of accelerators: MBTS (dibenzothiazole disulfide), TMTD (tetramethylthiuram disulfide) and CBS (n-cyclohexyl 2-benzothiazole sulfenamide). The cross-linked densities were determined by organic solvent swelling, dynamic mechanical analysis (DMA), stress vs strain, and low-field nuclear magnetic resonance, the latter being the reference technique for comparison with the other results. It was found that the choice of accelerator type influences the processing time and the cross-linked density of the vulcanizate. The four techniques showed close values of cross-linked density for natural rubber compounds, demonstrating that the analytical techniques studied can be applied to determine cross-linked density.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700214&tlng=enNatural rubbercross-linked densityFlory-RehnerMooney-RivlinNMR |
| spellingShingle | Carlos Toshiyuki Hiranobe Gabriel Deltrejo Ribeiro Giovanni Barrera Torres Elton Aparecido Prado dos Reis Flávio Camargo Cabrera Aldo Eloizo Job Leonardo Lataro Paim Renivaldo José dos Santos Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques Materials Research Natural rubber cross-linked density Flory-Rehner Mooney-Rivlin NMR |
| title | Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques |
| title_full | Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques |
| title_fullStr | Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques |
| title_full_unstemmed | Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques |
| title_short | Cross-Linked Density Determination of Natural Rubber Compounds by Different Analytical Techniques |
| title_sort | cross linked density determination of natural rubber compounds by different analytical techniques |
| topic | Natural rubber cross-linked density Flory-Rehner Mooney-Rivlin NMR |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700214&tlng=en |
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