Enhancement of piezoelectricity in polymer PVDF based on molecular chain structure
| العنوان: | Enhancement of piezoelectricity in polymer PVDF based on molecular chain structure |
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| المؤلفون: | Can Zhou, Xuetian Gong, Shenglin Jiang, Kailun Zou, Wenjing Zhou, Yang Cao, Yuli Lin |
| المصدر: | Journal of Materials Science: Materials in Electronics. 32:28708-28717 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Materials science, Piezoelectric coefficient, Double bond, Polymer, Dielectric, Condensed Matter Physics, Piezoelectricity, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, chemistry, Chemical engineering, X-ray photoelectron spectroscopy, Electrical and Electronic Engineering, Fourier transform infrared spectroscopy, Polarization (electrochemistry) |
| الوصف: | In this paper, a novel polarization method was proposed, in which a partially isolated C=C double bond was constructed in the PVDF molecular chain by designing a step-by-step polarization process. The dielectric and piezoelectric properties of PVDF films were studied. The results show that the piezoelectric coefficient d33 is significantly improved. Specifically, the d33 increases from − 6.5 pC/N for traditional polarization to − 13.5 pC/N by 107%. The microstructures were investigated by Fourier transform infrared spectroscopy and X-ray Photoelectron Spectroscopy, and it is confirmed that the dehydrogenation defluorination reaction was effectively induced by the polarization method, and the C=C double bond is constructed. It is also observed that the introduction of C=C bond increases the content of polar β phase, and consequently its piezoelectric properties of PVDF films. This method improves the piezoelectric performance while maintaining the original excellent performance, and further broadens the application scenarios of PVDF. |
| تدمد: | 1573-482X 0957-4522 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::feada50bad1174fcc9184b09d968e169 https://doi.org/10.1007/s10854-021-07250-1 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........feada50bad1174fcc9184b09d968e169 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1573482X 09574522 |
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