Towards Next-Generation Sustainable Composites Made of Recycled Rubber, Cenospheres, and Biobinder

Journal article


Irtiseva, K., Lapkovskis, V., Mironovs, Vi., Ozolins, J., Thakur, V.K., Goel, G., Baronins, J. and Shishkin, A. (2021). Towards Next-Generation Sustainable Composites Made of Recycled Rubber, Cenospheres, and Biobinder. Polymers. 13 (4), p. e574. https://doi.org/10.3390/polym13040574
AuthorsIrtiseva, K., Lapkovskis, V., Mironovs, Vi., Ozolins, J., Thakur, V.K., Goel, G., Baronins, J. and Shishkin, A.
AbstractThe utilisation of industrial residual products to develop new value-added materials and reduce their environmental footprint is one of the critical challenges of science and industry. Development of new multifunctional and bio-based composite materials is an excellent opportunity for the effective utilisation of residual industrial products and a right step in the Green Deal's direction as approved by the European Commission. Keeping the various issues in mind, we describe the manufacturing and characterisation of the three-component bio-based composites in this work. The key components are a bio-based binder made of peat, devulcanised crumb rubber (DCR) from used tyres, and part of the fly ash, i.e., the cenosphere (CS). The three-phase composites were prepared in the form of a block to investigate their mechanical properties and density, and in the form of granules for the determination of the sorption of water and oil products. We also investigated the properties’ dependence on the DCR and CS fraction. It was found that the maximum compression strength (in block form) observed for the composition without CS and DCR addition was 79.3 MPa, while the second-highest value of compression strength was 11.2 MPa for the composition with 27.3 wt.% of CS. For compositions with a bio-binder content from 17.4 to 55.8 wt.%, and with DCR contents ranging from 11.0 to 62.0 wt.%, the compressive strength was in the range from 1.1 to 2.0 MPa. Liquid-sorption analysis (water and diesel) showed that the maximum saturation of liquids, in both cases, was set after 35 min and ranged from 1.05 to 1.4 g·g -1 for water, and 0.77 to 1.25 g·g-1 for diesel. It was observed that 90% of the maximum saturation with diesel fuel came after 10 min and for water after 35 min.
Keywordssustainable composites; crumb rubber; devulcanised crumb rubber; cenosphere; peat; biocomposite; hybrid material; bio-binder; oil absorption
Year2021
JournalPolymers
Journal citation13 (4), p. e574
PublisherMDPI
ISSN2073-4360
Digital Object Identifier (DOI)https://doi.org/10.3390/polym13040574
Web address (URL)https://www.mdpi.com/2073-4360/13/4/574
FunderLatvian Council of Science within the scope of the project quot;Innovative bio-based composite granules for collecting oil spills from the water surface (InnoGran)quot; (No. lzp-2020/2-0394).
Publication dates
Online14 Feb 2021
Publication process dates
Accepted11 Feb 2021
Deposited22 Feb 2021
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Licensehttps://creativecommons.org/licenses/by/4.0/
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