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Effective thermal-oxidative reclamation of waste tire rubbers for producing high-performance rubber composites

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Zhang, Yuxin, Zhang, Zhen, Wemyss, Alan M., Wan, Chaoying, Liu, Yongtao, Song, Pan and Wang, Shifeng (2020) Effective thermal-oxidative reclamation of waste tire rubbers for producing high-performance rubber composites. ACS Sustainable Chemistry & Engineering, 8 (24). pp. 9079-9087. doi:10.1021/acssuschemeng.0c02292 ISSN 2168-0485.

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Official URL: http://dx.doi.org/10.1021/acssuschemeng.0c02292

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Abstract

The disposal and accumulation of waste tire rubbers has a significant negative impact on the development of a circular economy and sustainable environment. To reuse and recycle ground tire rubber, we developed a thermal-oxidative reclamation process using a newly designed dynamic reclamation reactor. In the absence of any chemical agent, a high scission efficiency was achieved at a sol fraction of 66.53 wt% at 200 °C after 20 min from the thermal oxidation of GTR. The physical and chemical structural evolutions of GTR during the thermo-oxidation process were systemically investigated by monitoring the Mooney viscosity, sol-gel ratio, molecular weight and chemical structure changes. The reclaimed ground tire rubber containing ultrafine fillers and soluble elastomer can be easily dispersed into a natural rubber matrix. The mechanical properties and aging resistance of the modified natural rubber were enhanced with the addition of up to 40 wt% reclaimed ground tire rubber. This work demonstrates a green and up-scalable approach for reclamation and reuse of waste tire rubbers for a sustainable rubber industry.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TE Highway engineering. Roads and pavements
T Technology > TS Manufactures
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Tires, Waste tires, Crumb rubber , Crumb rubber -- Heat treatment, Nanocomposites (Materials) , Rubber -- Industrial applications
Journal or Publication Title: ACS Sustainable Chemistry & Engineering
Publisher: American Chemical Society
ISSN: 2168-0485
Official Date: 22 June 2020
Dates:
DateEvent
22 June 2020Published
22 May 2020Available
20 May 2020Accepted
Volume: 8
Number: 24
Page Range: pp. 9079-9087
DOI: 10.1021/acssuschemeng.0c02292
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): “This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry & Engineering, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].”
Access rights to Published version: Restricted or Subscription Access
Copyright Holders: © 2020 American Chemical Society
Date of first compliant deposit: 29 May 2020
Date of first compliant Open Access: 22 May 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
BA2016002Science and Technology Support Program of Jiangsu Provincehttp://dx.doi.org/10.13039/501100004610
51273110[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDChina Scholarship Councilhttp://dx.doi.org/10.13039/501100004543

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