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Received January 9, 2017
Accepted January 17, 2017
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아미노실란과 콜로이드 실리카를 이용한 친수성 코팅 도막의 제조
Preparation of Hydrophilic Coating Films by using of Aminosilane and Colloidal Silica
건양대학교 화공생명학과, 32992 충청남도 논산시 대학로 121 1대흥화학공업(주) 부설연구소, 17746 경기도 평택시 산단로 64번길 68
Department of Chemical and Biochemical Engineering, Konyang University, 121, Daehak-ro, Nonsan-si, Chungnam, 32992, Korea 1Research Institute of Daehung Chemical Co., Ltd, 68, Sandan-ro 64beon-gil, Pyeongtaek-si, Gyeonggi, 17746, Korea
Korean Chemical Engineering Research, April 2017, 55(2), 247-252(6), 10.9713/kcer.2017.55.2.247 Epub 31 March 2017
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Abstract
실란커플링제인 아미노실란을 15~20 nm의 직경을 갖는 콜로이드 실리카와 반응시킴에 의해 친수성 코팅 용액을 제조하였다. 또한 친수성 코팅 용액을 폴리카보네이트 기재 위에 담금 코팅 시킨 후 120 °C에서 열경화 시킴에 의해 친수성 코팅 도막이 제조되었다. 이 과정 중 아미노실란의 종류 변화가 코팅 도막의 물성에 미치는 영향을 연구하였다. 그 결과 아미노실란으로서 3-aminopropyltriethoxysilane (APTES)을 사용하여 제조된 코팅 도막은 25~44°의 접촉각과 B의 좋지 못한 연필경도를 나타내었다. 반면에 아미노실란으로서 3-aminopropyltrimethoxysilane (APTMS)을 사용하여 제조된 코팅 도막은 26~37°의 접촉각과 2H의 우수한 연필경도를 나타내었다.
Hydrophilic coating solutions were prepared by reacting a silane coupling agent, aminosilane with colloidal silica (15~20 nm in diameter). Hydrophilic coating films were also obtained by depositing the hydrophilic coating solutions on polycarbonate substrates by dip-coating and subsequently by thermal curing at 120 °C. During this process, the effect of types of aminosilane was studied on the properties of coating films. As a result, coating films, prepared with 3-aminopropyltriethoxysilane (APTES) as aminosilane, showed contact angles of 25~44° and a poor pencil hardness of B. On the other hand, coating films, prepared with 3-aminopropyltrimethoxysilane (APTMS) as aminosilane, exhibited contact angles of 26~37° and a good pencil hardness of 2H.
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References
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