Crystal structure and thermal properties of poly(vinylidene fluoridehexafluoropropylene) films prepared by various processing conditions |
| |
Authors: | Sunhee Lee |
| |
Institution: | (1) Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China; |
| |
Abstract: | Poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP) films were prepared using either a melt pressing or solution casting
methods. The resulting PVDF-HFP films were drawn uniaxially at various drawing temperatures and speeds. The mp-PVDF-HFP films
were more transparent and had more drawability than the sc-PVDF-HFP films. The crystal form of the initial films was the alpha-phase
(non polarity) of PVDF. The maximum draw ratio was 7.6. The mp-PVDF-HFP films were prepared at a drawing speed of 2500 %/min
at 100 °C. With increasing drawing speed, the beta-phase (polarity) became the dominant phase of PVDF in mp-PVDF-HFP films.
The thermal properties of the resulting PVDF-HFP films improved with increasing drawing temperature. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|