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Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber

[Image: see text] Fillers are indispensable for rubber composites. Carbon black as an efficient reinforcing filler is most widely used in the rubber industry. However, the utilization of nonrenewable feedstock, energy consumption, and footprint for making carbon black lead to the seeking of alternat...

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Autores principales: Wang, Zhepeng, Wang, Shaojuan, Yu, Xinyu, Zhang, Hao, Yan, Shouke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320099/
https://www.ncbi.nlm.nih.gov/pubmed/34337240
http://dx.doi.org/10.1021/acsomega.1c02304
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author Wang, Zhepeng
Wang, Shaojuan
Yu, Xinyu
Zhang, Hao
Yan, Shouke
author_facet Wang, Zhepeng
Wang, Shaojuan
Yu, Xinyu
Zhang, Hao
Yan, Shouke
author_sort Wang, Zhepeng
collection PubMed
description [Image: see text] Fillers are indispensable for rubber composites. Carbon black as an efficient reinforcing filler is most widely used in the rubber industry. However, the utilization of nonrenewable feedstock, energy consumption, and footprint for making carbon black lead to the seeking of alternative substitutes for carbon black, which is of great significance. Here in this work, the possibility of illite, a most common mineral in sedimentary rocks, as an alternative filler for natural rubber (NR) is determined. It is found that pristine illite slows the curing rate and decreases the cross-linking density of NR, which results in the inferior performance of NR. This is associated with the weak filler–rubber interaction, which is a vital factor in deciding the performance of rubber composites. Therefore, illite has been modified using hexadecyl trimethyl ammonium bromide (CTAB), a commonly used cation surfactant, for improving the filler–rubber interaction. The thus obtained C-illite is confirmed to be efficient for (i) enhancing the illite–NR interaction, (ii) improving the dispersion of illite in the NR matrix, and (iii) accelerating the curing process of NR with increased cross-linking density. All of these lead to significantly improved mechanical properties and wear resistance of the C-illite/NR composites, e.g., a 71.88% increase of the modulus at 300% strain compared to the pure NR and a 23.79% reduction of the DIN abrasion volume compared to the NR filled with 40 phr pristine illite. This illustrates the high possibility of CTAB-modified illite with an optimal particle size as a promising alternative filler of carbon black for reinforcing rubbers.
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spelling pubmed-83200992021-07-30 Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber Wang, Zhepeng Wang, Shaojuan Yu, Xinyu Zhang, Hao Yan, Shouke ACS Omega [Image: see text] Fillers are indispensable for rubber composites. Carbon black as an efficient reinforcing filler is most widely used in the rubber industry. However, the utilization of nonrenewable feedstock, energy consumption, and footprint for making carbon black lead to the seeking of alternative substitutes for carbon black, which is of great significance. Here in this work, the possibility of illite, a most common mineral in sedimentary rocks, as an alternative filler for natural rubber (NR) is determined. It is found that pristine illite slows the curing rate and decreases the cross-linking density of NR, which results in the inferior performance of NR. This is associated with the weak filler–rubber interaction, which is a vital factor in deciding the performance of rubber composites. Therefore, illite has been modified using hexadecyl trimethyl ammonium bromide (CTAB), a commonly used cation surfactant, for improving the filler–rubber interaction. The thus obtained C-illite is confirmed to be efficient for (i) enhancing the illite–NR interaction, (ii) improving the dispersion of illite in the NR matrix, and (iii) accelerating the curing process of NR with increased cross-linking density. All of these lead to significantly improved mechanical properties and wear resistance of the C-illite/NR composites, e.g., a 71.88% increase of the modulus at 300% strain compared to the pure NR and a 23.79% reduction of the DIN abrasion volume compared to the NR filled with 40 phr pristine illite. This illustrates the high possibility of CTAB-modified illite with an optimal particle size as a promising alternative filler of carbon black for reinforcing rubbers. American Chemical Society 2021-07-19 /pmc/articles/PMC8320099/ /pubmed/34337240 http://dx.doi.org/10.1021/acsomega.1c02304 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Wang, Zhepeng
Wang, Shaojuan
Yu, Xinyu
Zhang, Hao
Yan, Shouke
Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title_full Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title_fullStr Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title_full_unstemmed Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title_short Study on the Use of CTAB-Treated Illite as an Alternative Filler for Natural Rubber
title_sort study on the use of ctab-treated illite as an alternative filler for natural rubber
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320099/
https://www.ncbi.nlm.nih.gov/pubmed/34337240
http://dx.doi.org/10.1021/acsomega.1c02304
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