플라스틱 기재 위에 polysilazane을 이용한 UV 경화형 하드코팅 도막 제조

양준호; 조용주; 송기창; Jun Ho Yang; Yong Ju Cho; Ki Chang Song

Korean Chemical Engineering Research, Vol.56, No.2, 162-168, April, 2018

DOI10.9713/kcer.2018.56.2.162 Export Citation

플라스틱 기재 위에 polysilazane을 이용한 UV 경화형 하드코팅 도막 제조

Preparation of UV Cured Hard Coating Films Using Polysilazane on Plastic Substrates

양준호, 조용주 ¹, 송기창^†

건양대학교 의료신소재학과, 32992 충남 논산시 대학로 121
¹유림특수화학(주) 기술연구소, 18520 경기도 화성시 정남면 여의동길 78

Jun Ho Yang, Yong Ju Cho¹, and Ki Chang Song^†

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

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초록

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 acrylate. UV-cured hard coating films were also obtained by flow coating, subsequently UV-curing on polymethylmethacrylate (PMMA) sheets. The effect of types and amounts of polysilazane was investigated on properties of obtained coating films. As a result, the coatings obtained by using organic polysilazane showed a high hydrophobic property with water contact angle of 95°, pencil hardness of 7H and high transparency of 92% in the visible wavelength range. On the other hand, the PMMA sheets made by using inorganic polysilazane exhibited a pencil hardness of as high as 8H, good adhesion to the substrate and water contact angle of 82°.

Keywords:UV Curable;Hard Coating Solutions;Inorganic Polysilazane;Organic Polysilazane;Pencil Hardness;PMMA Sheets

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[1] Kim DH, Song KC, Chung JS, Lee BS, Korean Chem. Eng. Res., 45(5), 442 (2007)

[2] Oh SK, Chung JS, Lee BS, Song KC, Korean Chem. Eng. Res., 46(2), 274 (2008)

[3] Hwang JH, Song KC, Korean Chem. Eng. Res., 49(3), 277 (2011)

[4] Yuan Y, Liu R, Wang C, Luo J, Liu X, Prog. Org. Coat., 77, 785 (2014)

[5] Zhang Z, Shao Z, Luo Y, An P, Zhang M, Xu C, Polym. Int., 64, 971 (2014)

[6] Marceaux S, Bressy C, Perrin FX, Martin C, Margaillan A, Prog. Org. Coat., 77, 1919 (2014)

[7] Kozuka H, Fujita M, Tamoto S, J. Sol-Gel Sci. Technol., 48, 148 (2008)

[8] Naganuma Y, Horiuchi T, Kato C, Tanaka S, Surf. Coat. Technol., 225, 40 (2013)

[9] ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International, 927-929(1997).

[10] Bauer F, Decker U, Dierdorf A, Ernst H, Heller R, Liebe H, Mehnert R, Prog. Org. Coat., 53, 183 (2005)