화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.54, No.3, 387-393, June, 2016
DOI10.9713/kcer.2016.54.3.387  Export Citation
과불화 알코올을 이용한 발수성 폴리우레탄 코팅 필름의 제조
Preparation of Water Repellent Polyurethane Coating Films Using Perfluoroalkyl Alcohol
김남우, 안치용, 송기창†
  • 건양대학교 화공생명학과, 32992 충남 논산시 내동 26
Nam Woo Kim, Chi Young Ahn, and Ki Chang Song†
  • Department of Chemical and Biochemical Engineering, Konyang University, 26, Nae-dong, Nonsan, Chungnam, 32992, Korea
E-mail:
초록
불소가 함유된 폴리우레탄 코팅 용액을 과불화 알코올, toluene diisocyanate와 polycarbonate diol을 출발물질로 사용하여 합성하였다. 이렇게 합성된 불소 함유 폴리우레탄 코팅 용액을 기재인 PC 위에 스핀 코팅 후 120 ℃에서 열경화시켜 코팅 필름을 제조하였다. 제조된 코팅 필름의 물성을 FT-IR spectroscopy, UV-visible spectrometer, 접촉각 측정기와 연필경도 측정기를 사용하여 분석하였다. 과불화 알코올의 첨가는 코팅 필름의 발수성을 향상시켜, 물 접촉각을 81°에서 111°로 증가시켰다. 그러나 코팅 필름의 연필경도는 과불화 알코올의 첨가에도 불구하고 H로 일정하였다.
Fluorinated polyurethane coating solutions were synthesized from perfluoroalkyl alcohol, toluene diisocyanate, and polycarbonate diol as starting materials. Next, coating films were prepared by spin-coating the fluorinated polyurethane coating solutions on the PC substrates, followed by thermal curing at 120 ℃. The obtained fluorinated polyurethane coating films were characterized by FT-IR spectroscopy, UV-Vis spectrometer, contact angle tester and pencil hardness tester. Contact angle measurements of water on the coating films showed that the addition of perfluoroalkyl alcohol improved the water repellency and increased the contact angle from 81° to 111°. However, the pencil hardness of coating films exhibited a constant grade of H, irrespective of the addition of perfluoroalkyl alcohol.
Keywords:Fluorinated polyurethane;Water Repellency;Contact Angle;Perfluoroalkyl alcohol;Coating Films