에틸메타크릴레이트 증기 분위기에서 코로나 방전 처리한 PVDF 필름의 XPS 분석

문희권; 서문규; HuiKwon Moon; Kyu Seomoon

Applied Chemistry for Engineering, Vol.27, No.6, 627-632, December, 2016

DOI10.14478/ace.2016.1096 Export Citation

에틸메타크릴레이트 증기 분위기에서 코로나 방전 처리한 PVDF 필름의 XPS 분석

XPS Analysis of PVDF Film Treated by Corona Discharge in Ethyl Methacrylate Vapor Atmosphere

문희권, 서문규^†

청주대학교 응용화학과

HuiKwon Moon, and Kyu Seomoon^†

Department of Applied Chemistry, Cheongju University, 298 Daeseongro, Cheongwon-gu, Cheongju 28503, Korea

E-mail:

초록

PVDF-PVC 적층필름의 계면접착력을 향상시키기 위한 새로운 방법으로 PVDF 필름 표면에 유전체장벽 코로나 방전을 통한 EMA 단량체 커플링을 시도하였다. EMA 1% 분위기에서 코로나 표면처리한 PVDF 필름을 사용하여 제조한 PVDF-PVC 적층필름의 계면접착력은 코로나 처리하지 않은 PVDF에 비해 현저히 향상되었다. 코로나 방전처리에 의해 PVDF 필름 표면의 접촉각은 현저히 감소하였다. XPS 분석 결과, 코로나 처리에 의해 필름 표면의 탄소와 산소함량은 증가하는 반면 불소 함량은 감소하였다. XPS C1s 피크의 curve fitting 결과, 코로나 방전 처리에 의해 비극성C-C 결합 탄소와 산소와 결합하는 탄소의 비율은 점차 증가한 반면, 불소와 결합하는 탄소의 비율은 크게 감소하는 경향을 나타내었다.

Ethyl methacrylate (EMA) monomer coupling onto the polyvinylidene fluoride (PVDF) film surface was attempted to enhance the interfacial adhesive force between PVDF-polyvinyl chloride (PVC) bilayer films via dielectric barrier corona discharge. The interfacial forces were quite enhanced when PVDF films were treated by corona discharge in an EMA 1% atmosphere. The contact angle of PVDF films decreased due to corona treatment. X-ray photoelectron spectroscopy (XPS) analysis showed that the carbon and oxygen content of the PVDF film surface increased with corona discharge while the fluoride content decreased. The curve fitting of XPS C1s peaks revealed that the non-polar C-C bonded carbon and oxygen-bonded carbon increased gradually with corona treatment, while the fluorine-bonded carbon decreased.

Keywords:PVDF-PVC;interfacial adhesive force;dielectric barrier corona discharge;ethyl methacrylate

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[1] Zhang QM, Bharti V, Kavarnos G, Schwartz E, Encyclopedia of Smart Materials, 1-2, 807 (2002)

[2] Kang GD, Cao YM, J. Membr. Sci., 463, 146 (2014)

[3] Lorek S, Bussi P, Renouard P, Adhesive bonding agent for PVDF, its application as barrier material and material obtained from the latter, US Patent 6,143,415 A (2000).

[4] Zerafati S, Hartzel WJ, Polyvinylidene barrier layer for container interiors, US Patent 0,278,193 A1 (2011).

[5] Jiang Q, Kroushl P, PVDF/PVC alloys for plenum cable applications, US Patent 8,486,502 B2 (2013).

[6] Moussaif N, Pagnoulle C, Riga J, Jerome R, Polymer, 41(9), 3391 (2000)

[7] ASTM D3359, Test methods for measuring adhesion by tape test.

[8] Artyushkova K, Kiefer B, Halevi B, Knop-Gericke A, Schlogl R, Atanassov P, Chem. Commun., 49, 2539 (2013)

[9] Thermo Fisher Scientific, Inc., http://xpssimplified.com/elements/carbon.php.