http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 주제어 : UV-curable organic-inorganic hybrid coating (검색결과 2 건)
-
A study on UV-curable organic-inorganic hybrid coating and their application as a gate dielectric
LEHONGNHUNG Kangwon National University 2021 국내석사
UV 경화형 유-무 기 하이브리드 코팅 및 게이트 유전체로 서의 응용에 관한 연구 Hong Nhung Le 강원대학교 대학원 기능소재공학과 다양한 유-무기 (O-I) 하이브리드 코팅 소재 중에서 UV 경화형 유-무기 하이브리드 코팅 소재는 상대적으로 짧은 시간에 저온 경화가 가능하기 때문에 많은 관심을 받고 있다. 그러나 안정적인 UV 경화형 O-I 하이브리드 코팅 소재 제조에 대한 보고는 거의 없는 실정이다. 본 연구에서는 다양한 양친성 우레탄 아크릴레이트를 사용한 UV 경화형 유-무기 하이브리드 코팅 소재 제조를 제시하였다. UV- 경화성 O-I 하이브리드 용액은 졸-겔 공정에서 무기 성분 공급원으로 다양한 양친성 우레탄 아크릴 레이트 및 TEOS 조성물을 사용하여서 제조되었다. 제조된UV 경화형 O-I 하이브리드 용액으로 형성된 UV 경화 코팅 필름의 연필 경도, 투명도, 경화 및 건조 속도와 같은 물리적 특성을 조사했다. 또한 낮은 표면 조도, 높은 유전 상수 k 및 낮은 누설 전류와 같은 물성을 가지고 있는 UV 경화형 하이브리드 게이트 유전체로서의 적용 가능성을 조사하였다. 핵심주제어 유-무기 하이브리드, 나노 입자, UV 경화, 졸-젤, 게이트 절연체, 유기 박막 트랜지스터 A study on UV-curable organic-inorganic hybrid coating and their application as a gate dielectric Le Hong-Nhung Department of Materials Science and Engineering Graduate School, Kangwon National University ABSTRACT Among various organic-inorganic (O-I) hybrid coating materials, UV-curable organic-inorganic hybrid coating has received much attention because it can be cured at low temperature in a relatively short time. However, there have been very few reports on the preparation of stable UV-curable O-I hybrid solutions. In this study, the preparation of UV-curable organic-inorganic hybrid coating using various amphiphilic urethane acrylates was presented. UV-curable O-I hybrid solutions were prepared at the various amphiphilic urethane acrylate and TEOS compositions as an inorganic source in the sol-gel process. Physical properties, such as pencil hardness, transparency, curing, and drying speed of UV-cured coating films formed by prepared UV-curable O-I hybrid solutions, were tested. Furthermore, this research revealed several significant benefits of UV-curable hybrid material in preparing UV-curing hybrid gate dielectrics, such as low rough surface, high dielectric constant k, and low leakage current. Keywords: O-I hybrid nanoparticles, UV curing, sol-gel, gate dielectric, OTFT
-
양준호 건양대학교 일반대학원 2018 국내석사
In this study, 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 120oC. 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 20o 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 27o and 36o and pencil hardness of H and B, respectively. To the next, UV-curable hydrophilic coating solutions were prepared by mixing colloidal silica dispersed in alcohol with an acrylic monomer, pentaerythritol triacrylate(PETA). Hydrophilic coating films were also prepared by spin coating the hydrophilic coating solutions on the PC substrate and UV curing for 10 minutes subsequently. The effect of the amount of colloidal silica in the coating solutions, which was varied from 10 g to 50 g, was investigated on the hydrophilic properties of UV-cured coating films. The results showed that the amount of colloidal silica had a great influence on the hydrophilic properties of UV-cured coating films and the coating film prepared with 30 g of colloidal silica showed a lowest contact angle of 37°and an excellent pencil hardness of H. Finally, 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 95o, 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 82o.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
