연신 조건에 따른 그래핀/PVDF-HFP 복합 필름의 미세구조 및 물성 분석

• Published in: 한국섬유공학회지 Vol. 54; no. 2; pp. 109 - 115
• Main Authors: 김혜림, Hyelim Kim, 이선희, Sunhee Lee
• Format: Journal Article
• Language: Korean
• Published: 한국섬유공학회 30.04.2017
• Subjects: crystal structure; electrical properties; graphene; poly(vinylidene fluoride-co-hexafluoropropylene); 섬유공학; crystal structure; electrical properties; poly(vinylidene fluoride-co-hexafluoropropylene); graphene
• ISSN: 1225-1089; 2288-6419

Graphene/poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP) composite films were prepared by the solution casting method. The resultant 2 wt% graphene/ PVDF-HFP composite films were uniaxially drawn at 50 ℃, 75 ℃, and 100℃. Investigation of the surface morphology of these films confirmed that the orientation of the polymer matrix. The XRD results showed α-phase crystals. With increasing drawing temperature, the (002) reflections of graphene decreased and the (100) and (020) planes of the α-phase of PVDF-HFP increased. DSC thermograms indicated no change in the melting temperature but a slight increase in crystallinity with increasing drawing temperatures. The surface resistivity of the graphene/PVDF-HFP composite films in the case of 75 ℃ drawing temperature were slightly lower than those in the case of the other two temperatures.