콜로이드 실리카 종류가 친수성 코팅 필름의 물성에 미치는 영향

양준호; 송기창; Jun Ho Yang; Ki Chang Song

Korean Chemical Engineering Research, Vol.55, No.6, 830-836, December, 2017

DOI10.9713/kcer.2017.55.6.830 Export Citation

콜로이드 실리카 종류가 친수성 코팅 필름의 물성에 미치는 영향

Effect of Types of Colloidal Silica on Properties of Hydrophilic Coating Films

양준호, 송기창^†

건양대학교 의료신소재학과, 32992 충청남도 논산시 대학로 121

Jun Ho Yang, and Ki Chang Song^†

Department of Biomedical Materials, Konyang University, 121, Daehak-ro, Nonsan, Chungnam, 32992, Korea

E-mail:

초록

콜로이드 실리카를 실란커플링제인 GPTMS (3-glycidoxypropyl trimethoxysilane)와 반응시킴에 의해 친수성 코팅용액을 제조하였다. 또한 이 친수성 코팅 용액을 폴리카보네이트 기재 위에 스핀코팅 시킨 후 120 °C에서 열경화 시킴에 의해 친수성 코팅 도막이 제조되었다. 이 과정 중 콜로이드 실리카의 평균 크기를 15 nm, 25 nm, 45 nm로 각각 변화시켜 코팅 도막의 물성에 미치는 영향을 살펴보았다. 그 결과 25 nm 크기의 콜로이드 실리카를 사용하여 제조된 코팅 도막은 20°의 낮은 접촉각과 H의 우수한 연필경도를 나타내었다. 반면에 15 nm와 45 nm 크기의 콜로이드 실리카로 제조된 코팅 도막은 각각 27°와 36°의 높은 접촉각과 H와 B의 연필경도를 나타내었다.

Hydrophilic coating solutions were prepared by reacting a silane coupling agent, GPTMS (3-glycidoxypropyl trimethoxysilane) with colloidal silica. Hydrophilic coating films were also obtained by depositing the hydrophilic coating solutions on polycarbonate substrates by spin-coating and subsequently by thermal curing at 120 °C. During this process, the effect of average particle sizes of colloidal silica was studied on the properties of coating films. As a result, coating film, prepared from colloidal silica with average particle size of 25 nm, showed a low contact angle of 20° and a good pencil hardness of H. On the other hand, coating films, prepared from colloidal silica with average particle sizes of 15 nm and 45 nm, exhibited high contact angles of 27° and 36° and pencil hardness of H and B, respectively.

Keywords:Hydrophilic coating solutions;Colloidal silica;3-Glycidoxypropyl trimethoxysilane;Hydrophilic coating films;Pencil hardness;Average particle size

[References]

Cha JK, MS. Dissertation, KAIST, Daejeon, Korea(2000).
Chen GE, Sun L, Xu ZL, Yang H, Hunag HH, Liu YJ, Korean J. Chem. Eng., 32(12), 2492 (2015)
Song KC, Park JK, Kang HU, Kim SH, J. Sol-Gel Sci. Technol., 27, 53 (2013)
Park JK, Song KS, Kang HU, Kim SH, Korean Chem. Eng. Res., 40(6), 735 (2002)
Lee DI, Jang SH, Song KC, Korean Chem. Eng. Res., 41(6), 768 (2003)
Lee BH, Kim EK, Lee S, Lim HJ, Lee IP, Korean Chem. Eng. Res., 54(2), 163 (2016)
Ah CY, Lee BH, Song KC, Korean Chem. Eng. Res., 55(2), 247 (2017)
ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International, 927-929(1997).

[1] Cha JK, MS. Dissertation, KAIST, Daejeon, Korea(2000).

[2] Chen GE, Sun L, Xu ZL, Yang H, Hunag HH, Liu YJ, Korean J. Chem. Eng., 32(12), 2492 (2015)

[3] Song KC, Park JK, Kang HU, Kim SH, J. Sol-Gel Sci. Technol., 27, 53 (2013)

[4] Park JK, Song KS, Kang HU, Kim SH, Korean Chem. Eng. Res., 40(6), 735 (2002)

[5] Lee DI, Jang SH, Song KC, Korean Chem. Eng. Res., 41(6), 768 (2003)

[6] Lee BH, Kim EK, Lee S, Lim HJ, Lee IP, Korean Chem. Eng. Res., 54(2), 163 (2016)

[7] Ah CY, Lee BH, Song KC, Korean Chem. Eng. Res., 55(2), 247 (2017)

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