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Received November 23, 2017
Accepted December 15, 2017
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플라스틱 기재 위에 polysilazane을 이용한 UV 경화형 하드코팅 도막 제조
Preparation of UV Cured Hard Coating Films Using Polysilazane on Plastic Substrates
건양대학교 의료신소재학과, 32992 충남 논산시 대학로 121 1유림특수화학(주) 기술연구소, 18520 경기도 화성시 정남면 여의동길 78
Department of Biomedical Materials, Konyang University, 121 Daehak-ro, Nonsan-si, Chungcheongnam-do, 32992, Korea 1Research Institute of YooLim Specialty Chemicals Co., 78 Yeouidong-gil, Jeongnam-myeon, Hwaseong-si, Gyeonggi-do, 18520, Korea
Korean Chemical Engineering Research, April 2018, 56(2), 162-168(7), 10.9713/kcer.2018.56.2.162 Epub 5 April 2018
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Abstract
유기 및 무기 폴리실라잔을 우레탄 아크릴레이트와 혼합시킴에 따라 UV 경화형 하드 코팅 용액을 제조하였다. 이 용액을 polymethylmethacrylate (PMMA) 시트에 흐름 코팅한 후 UV 경화시킴에 의해 UV 경화형 하드 코팅 도막을 제조하였다. 이 과정 중 폴리실라잔의 종류 및 첨가량을 변화시켜 코팅 도막의 물성에 미치는 영향을 살펴보았다. 그 결과 유기 폴리실라잔의 경우 95°의 수접촉각을 보여 높은 소수성을 나타내었으며, 7H의 연필경도와 92%의 가시광선 투과율을 보였다. 반면에 무기 폴리실라잔을 코팅한 도막은 8H의 높은 연필경도와 기재와의 우수한 접착력 및 82°의 수접촉각을 나타내었다.
UV-curable hard coating solutions were prepared by mixing organic or inorganic polysilazane with urethane_x000D_
acrylate. UV-cured hard coating films were also obtained by flow coating, subsequently UV-curing on polymethylmethacrylate_x000D_
(PMMA) sheets. The effect of types and amounts of polysilazane was investigated on properties of_x000D_
obtained coating films. As a result, the coatings obtained by using organic polysilazane showed a high hydrophobic_x000D_
property with water contact angle of 95°, pencil hardness of 7H and high transparency of 92% in the visible wavelength_x000D_
range. On the other hand, the PMMA sheets made by using inorganic polysilazane exhibited a pencil hardness of as high_x000D_
as 8H, good adhesion to the substrate and water contact angle of 82°.
Keywords
References
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Yuan Y, Liu R, Wang C, Luo J, Liu X, Prog. Org. Coat., 77, 785 (2014)
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Kozuka H, Fujita M, Tamoto S, J. Sol-Gel Sci. Technol., 48, 148 (2008)
Naganuma Y, Horiuchi T, Kato C, Tanaka S, Surf. Coat. Technol., 225, 40 (2013)
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Bauer F, Decker U, Dierdorf A, Ernst H, Heller R, Liebe H, Mehnert R, Prog. Org. Coat., 53, 183 (2005)
