Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators
The electrical output performances of polyvinylidene fluoride (PVDF) triboelectric nanogenerators (TENGs) were closely related to its surface potential, surface roughness, β crystalline form, crystallinity, and dielectric constant. In order to improve the high power output, high voltage thermal pola...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420317440 |
| _version_ | 1818560885520596992 |
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| author | Huan Zhang Tong Wan Bowen Cheng Wei Li Shaoyu Wang Xuejing Li |
| author_facet | Huan Zhang Tong Wan Bowen Cheng Wei Li Shaoyu Wang Xuejing Li |
| author_sort | Huan Zhang |
| collection | DOAJ |
| description | The electrical output performances of polyvinylidene fluoride (PVDF) triboelectric nanogenerators (TENGs) were closely related to its surface potential, surface roughness, β crystalline form, crystallinity, and dielectric constant. In order to improve the high power output, high voltage thermal polarization with injection molding (HVTP-IM) was integrated as a single-process to achieve the injection of PVDF electrets. The physical properties of these injection electrets were explored, including surface potential, surface morphology, crystalline transition, crystallinity, and dielectric constant by changing HVTP-IM temperatures, voltages, and times. The optimal polarization condition during the HVTP-IM process was set at 90 °C, 40 MV/m, and 30 min by comprehensive analysis, and the peak intensity of β-crystal under this condition was 2.03 times as much as that of the virgin PVDF without HVTP-IM. Vertical contact-separated TENGs were constructed via PVDF injection electrets, and their performances were studied by measuring the output electrical signals. The output current and voltage of TENGs based on PVDF injection electrets were twice and seven times higher than that of without treatment by HVTP-IM, and the maximum could be reached 75 µA and 15 V. This study paves a new path for improving the properties of PVDF or other materials to enhance the output performances of triboelectric nanogenerators when they are used as triboelectric materials. |
| first_indexed | 2024-12-14T00:44:00Z |
| format | Article |
| id | doaj.art-6e9365c5bf99480b91c58711037b067e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-14T00:44:00Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-6e9365c5bf99480b91c58711037b067e2022-12-21T23:24:14ZengElsevierJournal of Materials Research and Technology2238-78542020-11-01961264312653Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogeneratorsHuan Zhang0Tong Wan1Bowen Cheng2Wei Li3Shaoyu Wang4Xuejing Li5College of Chemical Engineering and Material Science, Tianjin University of Science and Technology TEDA, Tianjin 300457, PR ChinaCollege of Chemical Engineering and Material Science, Tianjin University of Science and Technology TEDA, Tianjin 300457, PR China; Corresponding authors.College of Chemical Engineering and Material Science, Tianjin University of Science and Technology TEDA, Tianjin 300457, PR ChinaSchool of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, PR China; Corresponding authors.College of Chemical Engineering and Material Science, Tianjin University of Science and Technology TEDA, Tianjin 300457, PR China; Corresponding authors.College of Chemical Engineering and Material Science, Tianjin University of Science and Technology TEDA, Tianjin 300457, PR ChinaThe electrical output performances of polyvinylidene fluoride (PVDF) triboelectric nanogenerators (TENGs) were closely related to its surface potential, surface roughness, β crystalline form, crystallinity, and dielectric constant. In order to improve the high power output, high voltage thermal polarization with injection molding (HVTP-IM) was integrated as a single-process to achieve the injection of PVDF electrets. The physical properties of these injection electrets were explored, including surface potential, surface morphology, crystalline transition, crystallinity, and dielectric constant by changing HVTP-IM temperatures, voltages, and times. The optimal polarization condition during the HVTP-IM process was set at 90 °C, 40 MV/m, and 30 min by comprehensive analysis, and the peak intensity of β-crystal under this condition was 2.03 times as much as that of the virgin PVDF without HVTP-IM. Vertical contact-separated TENGs were constructed via PVDF injection electrets, and their performances were studied by measuring the output electrical signals. The output current and voltage of TENGs based on PVDF injection electrets were twice and seven times higher than that of without treatment by HVTP-IM, and the maximum could be reached 75 µA and 15 V. This study paves a new path for improving the properties of PVDF or other materials to enhance the output performances of triboelectric nanogenerators when they are used as triboelectric materials.http://www.sciencedirect.com/science/article/pii/S2238785420317440High voltage thermal polarization with injection moldingPVDF injection electretsTriboelectric nanogenerator |
| spellingShingle | Huan Zhang Tong Wan Bowen Cheng Wei Li Shaoyu Wang Xuejing Li Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators Journal of Materials Research and Technology High voltage thermal polarization with injection molding PVDF injection electrets Triboelectric nanogenerator |
| title | Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators |
| title_full | Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators |
| title_fullStr | Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators |
| title_full_unstemmed | Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators |
| title_short | Polyvinylidene fluoride injection electrets: preparation, characterization, and application in triboelectric nanogenerators |
| title_sort | polyvinylidene fluoride injection electrets preparation characterization and application in triboelectric nanogenerators |
| topic | High voltage thermal polarization with injection molding PVDF injection electrets Triboelectric nanogenerator |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420317440 |
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