GO-supported bimetallic accelerator containing Zn and La for efficient low-temperature vulcanization of rubber composites.
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| Title: | GO-supported bimetallic accelerator containing Zn and La for efficient low-temperature vulcanization of rubber composites. |
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| Authors: | Qin, Wu1, Zhang, Rui1, Zheng, Long2 lzheng@wtu.edu.cn, Wang, Danling3, Chen, Sheng3, Ren, Huiming3, Hu, Shui1, Wen, Shipeng1 wensp@mail.buct.edu.cn |
| Source: | Express Polymer Letters. Jun2026, Vol. 20 Issue 6, p551-562. 12p. |
| Subjects: | Vulcanization, Bimetallic catalysts, Graphene oxide, Zinc, Reinforcement of rubber, Energy consumption, Lanthanum |
| Abstract: | Conventional sulfur vulcanization in rubber manufacturing depends on elevated curing temperatures and zinc oxide activators, resulting in high energy consumption and increasing environmental concerns associated with zinc release. To overcome these limitations, a novel graphene oxide (GO)-supported rare-earth-containing accelerator (GO–LZC) was designed by coordinating lanthanum(III) and zinc(II) ions with sodium diethyldithiocarbamate (DC). At the same time, the oxygen-containing groups on GO further participated in ligand coordination. The resulting GO-immobilized complex exhibits a well-defined chelating structure and uniform nanoscale dispersion, which together enhance the accessibility and reactivity of active sulfurating species during curing. When incorporated into solution-polymerized styrene–butadiene rubber (SSBR), GO–LZC markedly promotes crosslink formation at reduced thermal input. Kinetic analysis reveals a substantial decrease in the apparent activation energy, and curing and mechanical tests confirm that efficient vulcanization can be achieved at 130°C, representing a 20–40 °C reduction relative to typical industrial curing conditions. This work demonstrates a viable strategy for developing low-zinc, energy-efficient, and high-performance vulcanization systems. It highlights the potential of rare-earth/GO hybrid catalysts for sustainable rubber processing. [ABSTRACT FROM AUTHOR] |
| Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193540072 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: GO-supported bimetallic accelerator containing Zn and La for efficient low-temperature vulcanization of rubber composites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Qin%2C+Wu%22">Qin, Wu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Rui%22">Zhang, Rui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zheng%2C+Long%22">Zheng, Long</searchLink><relatesTo>2</relatesTo><i> lzheng@wtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Danling%22">Wang, Danling</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Sheng%22">Chen, Sheng</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Ren%2C+Huiming%22">Ren, Huiming</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hu%2C+Shui%22">Hu, Shui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wen%2C+Shipeng%22">Wen, Shipeng</searchLink><relatesTo>1</relatesTo><i> wensp@mail.buct.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Express+Polymer+Letters%22">Express Polymer Letters</searchLink>. Jun2026, Vol. 20 Issue 6, p551-562. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Vulcanization%22">Vulcanization</searchLink><br /><searchLink fieldCode="DE" term="%22Bimetallic+catalysts%22">Bimetallic catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene+oxide%22">Graphene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc%22">Zinc</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforcement+of+rubber%22">Reinforcement of rubber</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Lanthanum%22">Lanthanum</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Conventional sulfur vulcanization in rubber manufacturing depends on elevated curing temperatures and zinc oxide activators, resulting in high energy consumption and increasing environmental concerns associated with zinc release. To overcome these limitations, a novel graphene oxide (GO)-supported rare-earth-containing accelerator (GO–LZC) was designed by coordinating lanthanum(III) and zinc(II) ions with sodium diethyldithiocarbamate (DC). At the same time, the oxygen-containing groups on GO further participated in ligand coordination. The resulting GO-immobilized complex exhibits a well-defined chelating structure and uniform nanoscale dispersion, which together enhance the accessibility and reactivity of active sulfurating species during curing. When incorporated into solution-polymerized styrene–butadiene rubber (SSBR), GO–LZC markedly promotes crosslink formation at reduced thermal input. Kinetic analysis reveals a substantial decrease in the apparent activation energy, and curing and mechanical tests confirm that efficient vulcanization can be achieved at 130°C, representing a 20–40 °C reduction relative to typical industrial curing conditions. This work demonstrates a viable strategy for developing low-zinc, energy-efficient, and high-performance vulcanization systems. It highlights the potential of rare-earth/GO hybrid catalysts for sustainable rubber processing. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3144/expresspolymlett.2026.42 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 551 Subjects: – SubjectFull: Vulcanization Type: general – SubjectFull: Bimetallic catalysts Type: general – SubjectFull: Graphene oxide Type: general – SubjectFull: Zinc Type: general – SubjectFull: Reinforcement of rubber Type: general – SubjectFull: Energy consumption Type: general – SubjectFull: Lanthanum Type: general Titles: – TitleFull: GO-supported bimetallic accelerator containing Zn and La for efficient low-temperature vulcanization of rubber composites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Qin, Wu – PersonEntity: Name: NameFull: Zhang, Rui – PersonEntity: Name: NameFull: Zheng, Long – PersonEntity: Name: NameFull: Wang, Danling – PersonEntity: Name: NameFull: Chen, Sheng – PersonEntity: Name: NameFull: Ren, Huiming – PersonEntity: Name: NameFull: Hu, Shui – PersonEntity: Name: NameFull: Wen, Shipeng IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1788618X Numbering: – Type: volume Value: 20 – Type: issue Value: 6 Titles: – TitleFull: Express Polymer Letters Type: main |
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