한국섬유공학회지 (Textile Science and Engineering)

  • 제55권1호
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  • Pages.7-14
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  • 2018
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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플라즈마 처리에 의한 폴리비닐리덴플로라이드 나노섬유의 젖음성

Wettability of PVDF Nanofibers by Plasma Treatment

  • 이승훈 ((주)아모그린텍 신소재 연구소) ;
  • 장선호 ((주)아모그린텍 신소재 연구소) ;
  • 소윤미 ((주)아모그린텍 신소재 연구소) ;
  • 이헌수 (한국과학기술연구원 전북분원) ;
  • 양철민 (한국과학기술연구원 전북분원) ;
  • 윤중현 (조선이공대학교 전자과) ;
  • 김찬 ((주)아모그린텍 신소재 연구소)
  • 투고 : 2017.12.09
  • 심사 : 2018.01.05
  • 발행 : 2018.02.28
⟨ 이전 논문 다음 논문 ⟩

초록

Poly(vinylidene fluoride) (PVDF) is a critical polymeric material used in the mass production and application of electrospun nanofibers, and is popular due to its excellent properties. However, electrospun PVDF nanofibers are very hydrophobic and possess low surface energies, limiting their broad application. In this work, we investigated practical methods for the hydrophobic surface modification of PVDF nanofibers using four techniques: radio-frequency (RF) and PIN-type atmospheric plasmas, planar inductively coupled plasma (ICP), and planar capacitively coupled plasma (CCP). The use of RF atmospheric plasma was ineffective under the experimental conditions used, while the PIN-type atmospheric plasma efficiently modified PVDF nanofiber surfaces locally. The application of planar CCP to PVDF nanofibers was more effective than planar ICP for the same experimental conditions. In particular, the water contact angles of samples treated with planar CCP for 600 s and 900 s were $25^{\circ}$ and $10^{\circ}$ respectively, and wettability improved. Analysis with FT-IR, XPS, and FE-SEM showed that the surface CF and CH hydrophobic groups were destroyed without damaging the PVDF nanofibers, and hydrophilic species such as C=O, OH, and COOH were formed. As a consequence, quantitative analysis of nanofiber chemical composition is necessary when treated by plasmas, providing insight into the correlation of specific property changes with processing conditions, and indicating precise research results and application examples.

키워드

참고문헌

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