Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios
The thermoplastic polyurethane (TPU)/multi-walled carbon nanotubes (MWCNTs) filled TPU (cTPU) bilayer composites with tunable layer thickness ratios were fabricated via layer-assembly coextrusion, while keeping the filler loading in whole composite at 1 wt%. The parallel circuit model was used to pr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822002707 |
| _version_ | 1811273372601942016 |
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| author | Jinxiang Ai Bingbing Zeng Jingxian Qin Yu Zheng Shaoyun Guo |
| author_facet | Jinxiang Ai Bingbing Zeng Jingxian Qin Yu Zheng Shaoyun Guo |
| author_sort | Jinxiang Ai |
| collection | DOAJ |
| description | The thermoplastic polyurethane (TPU)/multi-walled carbon nanotubes (MWCNTs) filled TPU (cTPU) bilayer composites with tunable layer thickness ratios were fabricated via layer-assembly coextrusion, while keeping the filler loading in whole composite at 1 wt%. The parallel circuit model was used to predict the electrical resistivity of bilayer composites, but the theoretical value was always lower than the experimental result. It was revealed that the predicted deviation originated from the particle transfer at interface and gradually disappeared with the enhanced migration of MWCNTs from cTPU into TPU. Then, the model was modified with a consideration of particle transfer and applied to explain the evolution of predicted deviation. Unlike the blend composite with the same composition exhibiting an insulation, the bilayer composites presented a good conductivity which could be greatly optimized by thinning the cTPU layer. The bilayer composites also possessed balanced mechanical properties and showed excellent absorption-dominated electromagnetic interference shielding effectiveness. This work offers guidance for tailoring the performance of conductive polymer composites. |
| first_indexed | 2024-04-12T22:57:55Z |
| format | Article |
| id | doaj.art-8e3c2ce3be994936b3a19675543e4b1c |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-04-12T22:57:55Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-8e3c2ce3be994936b3a19675543e4b1c2022-12-22T03:13:07ZengElsevierPolymer Testing0142-94182022-11-01115107749Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratiosJinxiang Ai0Bingbing Zeng1Jingxian Qin2Yu Zheng3Shaoyun Guo4Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu, 610065, ChinaPolymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu, 610065, ChinaPolymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu, 610065, ChinaCorresponding author.; Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu, 610065, ChinaCorresponding author.; Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu, 610065, ChinaThe thermoplastic polyurethane (TPU)/multi-walled carbon nanotubes (MWCNTs) filled TPU (cTPU) bilayer composites with tunable layer thickness ratios were fabricated via layer-assembly coextrusion, while keeping the filler loading in whole composite at 1 wt%. The parallel circuit model was used to predict the electrical resistivity of bilayer composites, but the theoretical value was always lower than the experimental result. It was revealed that the predicted deviation originated from the particle transfer at interface and gradually disappeared with the enhanced migration of MWCNTs from cTPU into TPU. Then, the model was modified with a consideration of particle transfer and applied to explain the evolution of predicted deviation. Unlike the blend composite with the same composition exhibiting an insulation, the bilayer composites presented a good conductivity which could be greatly optimized by thinning the cTPU layer. The bilayer composites also possessed balanced mechanical properties and showed excellent absorption-dominated electromagnetic interference shielding effectiveness. This work offers guidance for tailoring the performance of conductive polymer composites.http://www.sciencedirect.com/science/article/pii/S0142941822002707Thermoplastic polyurethaneBilayer structure designLayer-assembly coextrusionElectrical propertyTheoretical prediction |
| spellingShingle | Jinxiang Ai Bingbing Zeng Jingxian Qin Yu Zheng Shaoyun Guo Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios Polymer Testing Thermoplastic polyurethane Bilayer structure design Layer-assembly coextrusion Electrical property Theoretical prediction |
| title | Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| title_full | Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| title_fullStr | Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| title_full_unstemmed | Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| title_short | Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| title_sort | experiment and theory study on the electrical property of mwcnt filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios |
| topic | Thermoplastic polyurethane Bilayer structure design Layer-assembly coextrusion Electrical property Theoretical prediction |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822002707 |
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