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Crystal Structure and Thermal Properties of Poly(vinylidene fluoride-hexafluoropropylene) Films Prepared by Various Processing Conditions
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  • Crystal Structure and Thermal Properties of Poly(vinylidene fluoride-hexafluoropropylene) Films Prepared by Various Processing Conditions
  • Crystal Structure and Thermal Properties of Poly(vinylidene fluoride-hexafluoropropylene) Films Prepared by Various Processing Conditions
저자명
Lee. Sun-Hee
간행물명
Fibers and polymers
권/호정보
2011년|12권 8호|pp.1030-1036 (7 pages)
발행정보
한국섬유공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

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 $100^{circ}C$. 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.