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Li M, Yu S, Fang X, Du Z, Ge X. Highly homogeneous and stable single-walled carbon nanotubes dispersion modified by polyvinylpyrrolidone and alkanolamine in water. RSC Adv 2024; 14:12947-12953. [PMID: 38650682 PMCID: PMC11033829 DOI: 10.1039/d4ra01614a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024] Open
Abstract
A novel noncovalent surface modification of commercial single-walled carbon nanotubes (SWCNTs) was successfully carried out by using ball grinding technology between SWCNTs and mixed dispersants (polyvinylpyrrolidone (PVP) and alkanolamine), affording a highly homogeneous and stable PA-SWCNTs dispersion in water. The homogeneous dispersibility and long storage stability were systematically investigated by transmittance spectroscopy, absorption spectroscopy, zeta potential analyzer, sedimentation photo and transmittance electron microscopy. Under the optimized conditions, the PA-SWCNTs dispersion modified with 0.7 wt% PVP and 0.25 wt% alkanolamine under the condition of total 6 h ball grinding time using paint shaker can be easily well-dispersed in water and has good storage stability, and no sedimentation is observed more than one month. From an industrial perspective, this method is green and easy to operate in industry.
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Affiliation(s)
- Minghua Li
- School of Energy Materials and Chemical Engineering, Hefei University Hefei Anhui 230601 China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives Hefei Anhui 230601 China
| | - Shujun Yu
- School of Energy Materials and Chemical Engineering, Hefei University Hefei Anhui 230601 China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives Hefei Anhui 230601 China
| | - Xiting Fang
- Anhui Research Institute of Chemical Industry Hefei Anhui 230041 China
| | - Zhiqiang Du
- School of Energy Materials and Chemical Engineering, Hefei University Hefei Anhui 230601 China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives Hefei Anhui 230601 China
| | - Xiaojin Ge
- School of Energy Materials and Chemical Engineering, Hefei University Hefei Anhui 230601 China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives Hefei Anhui 230601 China
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Li M, Jiang J, Lu X, Gao J, Jiang D, Gao L. Natural rubber reinforced with super-hydrophobic multiwalled carbon nanotubes: obvious improved abrasive resistance and enhanced thermal conductivity. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Polyurethane chain was successfully grafted onto carbon nanotubes, affording polyurethane-functionalized multiwalled carbon nanotubes (P-MWCNTs) with super-hydrophobic property, which shows improved abrasive resistance obviously and enhanced thermal conductivity for natural rubber (NR) vulcanizate. Under the optimized conditions, the akron abrasion loss of NR vulcanizate combined with 5 parts per hundred rubber (5 phr) P-MWCNTs is 0.9 cm3/1.61 km compared to 2.96 cm3/1.61 km of pristine NR vulcanizate. The thermal conductivity of NR vulcanizate combined with 5 phr P-MWCNTs has been improved by 40.3% compared to that of pristine NR vulcanizate. The decreased height of the maximum tan δ peak shows that P-MWCNTs can reduce the heat buildup and damping capability of NR/P-MWCNTs composites. The good dispersion of P-MWCNTs with a continuous network, particularly at high loading (5 phr) in the NR composites, was evidenced from transmission electron microscopy (TEM).
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Affiliation(s)
- Minghua Li
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
| | - Jiajia Jiang
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
| | - Xiaoyu Lu
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
| | - Jie Gao
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
| | - Dongming Jiang
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
| | - Lei Gao
- School of Energy Materials and Chemical Engineering , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
- Anhui Provincial Engineering Research Center for Green Coatings High-performance Additives , Hefei University , 99 Jinxiu Avenue , Hefei , Anhui 230601 , China
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Naqvi STR, Rasheed T, Hussain D, Najam ul Haq M, Majeed S, shafi S, Ahmed N, Nawaz R. Modification strategies for improving the solubility/dispersion of carbon nanotubes. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111919] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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