Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers
Layered vermiculite (VMT) nanosheets have received significant attention as inorganic additives in the field of nanocomposites; however, extremely low yields and efficiencies limit their large-scale utilization. Herein, we develop a narrow-gap exfoliation approach to achieve efficient and industrial...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423006968 |
| _version_ | 1797798792399945728 |
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| author | Xiangkun Zhang Houmei You Jinpeng Hou Zhong Li Yongjun Feng Yanjun Lin Xun Dai Kewei Zhang Weiliang Tian |
| author_facet | Xiangkun Zhang Houmei You Jinpeng Hou Zhong Li Yongjun Feng Yanjun Lin Xun Dai Kewei Zhang Weiliang Tian |
| author_sort | Xiangkun Zhang |
| collection | DOAJ |
| description | Layered vermiculite (VMT) nanosheets have received significant attention as inorganic additives in the field of nanocomposites; however, extremely low yields and efficiencies limit their large-scale utilization. Herein, we develop a narrow-gap exfoliation approach to achieve efficient and industrially scalable production of high-quality VMT nanosheets, where water instead of acid is used as green solvent. As compared with traditional approaches, the synergism between shear and collision overcomes the agglomeration of nanosheets, achieving efficient exfoliation of high-quality VMT nanosheets with a yield value about 80%. The narrow-gap exfoliation equipment is further used as a coupled separation reactor for in-situ preparation of VMT-stabilized poly (vinyl chloride), which exhibits superior thermal stability. The aging blackening time and Congo red test time is comparable to the commercial lead-based thermal stabilizers. This work provides a potential strategy for scalable exfoliation of layered materials and opens new applications in in-situ preparation of inorganic-organic nanocomposites. |
| first_indexed | 2024-03-13T04:09:11Z |
| format | Article |
| id | doaj.art-3d19d78852fa4cb9a159b7b660402c30 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:11Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-3d19d78852fa4cb9a159b7b660402c302023-06-21T06:56:23ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012438043814Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizersXiangkun Zhang0Houmei You1Jinpeng Hou2Zhong Li3Yongjun Feng4Yanjun Lin5Xun Dai6Kewei Zhang7Weiliang Tian8College of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR ChinaCollege of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR ChinaCollege of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR ChinaCollege of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR ChinaState Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, PR ChinaState Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, PR ChinaCollege of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR ChinaState Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, PR China; Corresponding author.College of Chemistry and Chemical Engineering, Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Tarim University, Alar, 843300, PR China; State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, PR China; Corresponding author.Layered vermiculite (VMT) nanosheets have received significant attention as inorganic additives in the field of nanocomposites; however, extremely low yields and efficiencies limit their large-scale utilization. Herein, we develop a narrow-gap exfoliation approach to achieve efficient and industrially scalable production of high-quality VMT nanosheets, where water instead of acid is used as green solvent. As compared with traditional approaches, the synergism between shear and collision overcomes the agglomeration of nanosheets, achieving efficient exfoliation of high-quality VMT nanosheets with a yield value about 80%. The narrow-gap exfoliation equipment is further used as a coupled separation reactor for in-situ preparation of VMT-stabilized poly (vinyl chloride), which exhibits superior thermal stability. The aging blackening time and Congo red test time is comparable to the commercial lead-based thermal stabilizers. This work provides a potential strategy for scalable exfoliation of layered materials and opens new applications in in-situ preparation of inorganic-organic nanocomposites.http://www.sciencedirect.com/science/article/pii/S2238785423006968Vermiculite nanosheetsNarrow-gap exfoliationCoupled separation reactorThermal stabilizer |
| spellingShingle | Xiangkun Zhang Houmei You Jinpeng Hou Zhong Li Yongjun Feng Yanjun Lin Xun Dai Kewei Zhang Weiliang Tian Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers Journal of Materials Research and Technology Vermiculite nanosheets Narrow-gap exfoliation Coupled separation reactor Thermal stabilizer |
| title | Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers |
| title_full | Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers |
| title_fullStr | Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers |
| title_full_unstemmed | Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers |
| title_short | Green and scalable narrow-gap exfoliation of high-quality two-dimensional vermiculite nanosheets as poly (vinyl chloride) thermal stabilizers |
| title_sort | green and scalable narrow gap exfoliation of high quality two dimensional vermiculite nanosheets as poly vinyl chloride thermal stabilizers |
| topic | Vermiculite nanosheets Narrow-gap exfoliation Coupled separation reactor Thermal stabilizer |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423006968 |
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