아크릴레이트 변성 나노실리카에 의한 고경도 하드 코팅액 제조

황송혜; 강두환; 강호종; Song Hye Hwang; Doo Whan Kang; Ho-Jong Kang

Polymer(Korea), Vol.40, No.3, 452-456, May, 2016

DOI10.7317/pk.2016.40.3.452 Export Citation

아크릴레이트 변성 나노실리카에 의한 고경도 하드 코팅액 제조

Modified Nano Silica by Acrylate for High Performance Hard Coating

황송혜, 강두환 , 강호종 ^†

단국대학교 고분자공학과

Song Hye Hwang, Doo Whan Kang , and Ho-Jong Kang^†

Department of Polymer Science and Engineering, Dankook University, Gyeonggi-do 16890, Korea

E-mail:

초록

나노실리카 표면을 아크릴레이트로 개질한 후 이를 상업용 아크릴레이트 하드코팅액에 첨가하여 유무기하이브리드 하드 코팅액을 제조하고 UV 경화에 의하여 PET 필름에 코팅한 후 도막의 물성을 살펴보았다. FTIR 실험결과, 나노실리카 표면의 하이드록실기 감소를 확인하여 하이드록실기가 아크릴레이트로 치환되었음을 알았다. 아크릴레이트 하드 코팅액과 아크릴레이트로 개질된 나노실리카의 유무기하이브리드 UV 경화에 의하여 표면 연필경도와 내마모성 증가를 확인하였으며, 또한 개질된 나노실리카 첨가는 광투과 특성에는 영향을 미치지 않는 반면, 표면거칠기 증가에 따른 광산란에 의하여 헤이즈가 증가함을 알았다.

The surface modification of nano silica was carried out with acrylate and then organic/inorganic hybrid coating material was prepared using commercially available acrylic hard coating material with the modified nano silica. UV curing was carried out for the prepared coating material on poly(ethylene terephthalate) (PET) film and physical properties were evaluated. FTIR results show that the hydroxyl groups on the surface of nano silica were successfully modified with acrylate. It was found that inorganic/organic UV curing between acrylate and acrylate modified nano silica resulted in the improvement of surface hardness and anti-scratching behavior with maintaining optical transmittance but the increase of haze was noticed due to the increase of light scattering on the rough surface by nano silica.

Keywords:nano silica;modification;organic/inorganic hard coating;pencil hardness;transmittance

[References]

Oh SK, Chung JS, Lee BS, Song KC, Korean Chem. Eng. Res., 46(2), 274 (2008)
Segurola J, Allen N, Edge M, Roberts I, Polym. Degrad. Stabil., 65, 153 (1999)
O'Brien AK, Cramer NB, Bowman CN, J. Polym. Sci. A: Polym. Chem., 44(6), 2007 (2006)
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Stober W, Fink A, Bohn E, J. Colloid Interface Sci., 26, 62 (1962)
Chang YW, Kim WS, Kim WS, Korean J. Chem. Eng., 13(5), 496 (1996)
Ou YC, Yu ZZ, Vidad A, Donet JB, Rubb. Chem. Tech., 67, 834 (1994)
Bergna HE, The Colloid Chemistry of Silica, American Chemical Society, Washington, DC (United States), 1994.
Fuji M, Takei T, Watanable T, Chikazawa M, Colloids Surf. A: Physicochem. Eng. Asp., 154, 13 (1999)
Hair ML, Infrared Spectroscopy in Surface Chemistry, Marcel Dekker, New York, 1967.
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Kim JH, Master dissertation, Dankook University (2013).

[Referenced By]

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

[2] Segurola J, Allen N, Edge M, Roberts I, Polym. Degrad. Stabil., 65, 153 (1999)

[3] O'Brien AK, Cramer NB, Bowman CN, J. Polym. Sci. A: Polym. Chem., 44(6), 2007 (2006)

[4] Giesche H, J. European Ceram. Soc., 14, 205 (1994)

[5] Ahmad Z, Mark JE, Chem. Mater., 13, 3320 (2001)

[6] Chu L, Daniels MW, Francis LF, Chem. Mater., 9, 2577 (1997)

[7] Billmeyer FW, Textbook of Polymer Science, Wiley, New York, 1971.

[8] Iler RK, The Chemistry of Silica, Wiley, New York, 1979.

[9] Stober W, Fink A, Bohn E, J. Colloid Interface Sci., 26, 62 (1962)

[10] Chang YW, Kim WS, Kim WS, Korean J. Chem. Eng., 13(5), 496 (1996)

[11] Ou YC, Yu ZZ, Vidad A, Donet JB, Rubb. Chem. Tech., 67, 834 (1994)

[12] Bergna HE, The Colloid Chemistry of Silica, American Chemical Society, Washington, DC (United States), 1994.

[13] Fuji M, Takei T, Watanable T, Chikazawa M, Colloids Surf. A: Physicochem. Eng. Asp., 154, 13 (1999)

[14] Hair ML, Infrared Spectroscopy in Surface Chemistry, Marcel Dekker, New York, 1967.

[15] Marrone M, Montanari T, Busca G, Conzatti L, Costa G, Castellano M, Turturro A, J. Phys. Chem., 108, 3563 (2004)

[16] Kim JH, Master dissertation, Dankook University (2013).