Enhanced crystallization behaviors and dielectric performance of poly(vinylidene fluoride) film induced by polyamide-1
| Autor: | Rundi Yang, Dandan Yuan, Xufu Cai, Yuanting Xu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Polyamide Materials Chemistry Crystallization Composite material 0210 nano-technology Fluoride |
| Zdroj: | High Performance Polymers. 33:1181-1191 |
| ISSN: | 1361-6412 0954-0083 |
| Popis: | Poly(vinylidene fluoride) (PVDF)-based composites attract tremendous attention as dielectric materials. However, their development has been limited due to the raised problem in the in-homogeneous polymer composites. In this work, a novel PVDF-based film incorporated with polyamide-1, containing the highest density of dipole among all polyamides, was prepared to improve the crystallization behaviors and dielectric properties. The results showed that the optimal concentration of polyamide-1 in PVDF was 6 wt.%. The crystallization rate of PVDF was improved in the presence of polyamide-1. Interestingly, the polyamide-1 was conductive to the formation of β form crystal of PVDF, which exhibited great electric performance. The dielectric constant of PVDF increased sharply and loss tangent still kept at a low level of 0.03@100 Hz when the concentration of polyamide-1 was 6 wt.%. This work may provide a new direction to design dielectric materials for PVDF blends. |
| Databáze: | OpenAIRE |
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