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반응성 이색성 염료를 사용하여 제조한 폴리(비닐 알코올) 편광필름의 내구성 및 편광특성에 관한 연구

Studies on Durability and Polarization Properties of Poly(vinyl alcohol) Polarizing Films Prepared with Reactive Dichroic Dyes

  • 최이준 (금오공과대학교 고분자공학과) ;
  • 최승석 (금오공과대학교 고분자공학과) ;
  • 박일현 (금오공과대학교 고분자공학과) ;
  • 장진호 (금오공과대학교 소재디자인공학과) ;
  • 백상현 (코오롱인더스트리(주)) ;
  • 박상봉 (코오롱인더스트리(주))
  • Choi, E-Joon (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Choi, Seung Sock (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Park, Il Hyun (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Chang, Jin Ho (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Back, Sang-Hyun (Kolon Industries, Inc.) ;
  • Park, Sang-Bong (Kolon Industries, Inc.)
  • 투고 : 2012.08.10
  • 심사 : 2012.09.17
  • 발행 : 2013.01.25

초록

이색성 염료인 콩고레드, 다이렉트블랙 22 및 다이렉트블랙 4를 염화시아눌산과 반응시켜 3,5-이염화-2,4,6-트리아진 잔기를 갖는 반응성 이색성 염료를 합성하였다. 합성한 반응성 이색성 염료를 폴리(비닐 알코올)(PVA) 필름에 염착시키고 400% 일축 연신시켜 편광필름을 제조한 후 투과도 및 편광효율을 측정하였다. 비교를 위하여 요오드를 PVA 필름에 염착시키고 400% 연신시켜 편광필름을 제조하여 투과도 및 편광효율을 측정하였다. 내구성 실험을 $50^{\circ}C$의 온도에서 85% 상대 습도의 조건으로 120시간 동안 진행하였다. 결론적으로, 요오드 염착 PVA 편광필름과 비교하여 반응성 이색성 염료 염착 PVA 편광필름의 경우 내구성이 크게 증진되었음을 알 수 있었다.

Three reactive dichroic dyes with 3,5-dichloro-2,4,6-triazine moiety were synthesized by reaction between dichroic dyes (such as congo red, direct black 22 or direct black 4) and cyanuric chloride. Poly(vinyl alcohol) (PVA) films were dyed with the obtained three reactive dichroic dyes. After 400% drawing of the PVA films, their optical properties were compared with an iodine-doped PVA film prepared in the same condition. Durability test was performed at $50^{\circ}C$ in 85% of relative humidity for 120 hrs. We found that compared with the iodine-doped PVA polarizing film, the relative durability of the PVA polarizing film dyed with the reactive dichroic dyes was greatly improved.

키워드

과제정보

연구 과제 주관 기관 : 금오공과대학교

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