Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2006.06a
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- Pages.232-233
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- 2006
Properties of Nano-Hybrid Coating Films Synthesized from Colloidal Silica-Silane
콜로이달 실리카와 실란으로부터 합성된 나노하이브리드 코팅 박막의 특성
- Na, Moon-Kyong (Korea Electrotechnology Research Institute) ;
- Ahn, Myeong-Sang (Korea Electrotechnology Research Institute) ;
- Kang, Dong-Pil (Korea Electrotechnology Research Institute)
- Published : 2006.06.22
Abstract
In recent years the interest in organic/inorganic hybrid materials has increased at a fast rate. Nano organic-inorganic hybrid composites have shown advantages for preparing hard coating layers. Especially, nano hybrid composite has low environmental pollution. It has high transparency, hardness, toughness, thermal dissociation temperature, hydrophobicity by using nano sized inorganic material. There are many ways in which these materials may be synthesized, a typical one being the use of silica and silanes using the sol-gel process. The structure of sol-gel silica evolves as a result of these successive hydrolysis and condensation reactions and the subsequent drying and curing. The sol-gel reactions are catalyzed by acids and produce silica sol solutions. The silica sol grows until they reach a size where a gel transition occurs and a solid-like gel is formed. Colloidal silica(CS)/silane sol solutions were synthesized in variation with parameters such as different acidity and reaction time. In order to understand their physical and chemical properties, sol-gel coating films were fabricated on glass. From all sol-gel solutions, seasoning effect of sol-gel coating layer on glass was observed.