| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Preparation and characteristics of organic/inorganic hybrid hard coating on PMMA substrate |
| 초록 |
The scratch-resistant coating materials on transparent plastic substrate surface were prepared by using urethane acrylate, polyhedral oligomeric silsesquioxane(POSS), and modified silica sol. POSS was prepared by a sol-gel reaction of organo-trialkoxysilane using acidic catalyst. Silica sol was modified with organoalkoxysilane to form chemical bonds on a substrate. Photoinitiator was added to a coating mixture and the coated layer was crosslinked with UV-radiation. UV-cured hard coating on a PMMA substrate resulted in a highly uniform and transparent coating layer. Fourier transform infrared spectrometer was used to characterize the chemical bonds of condensation products from sol-gel reaction. Surface hardness of hard coating was evaluated by a pencil hardness test. Transmittance of hard coating was investigated by UV/Vis spectrometer. The scratch resistance of PMMA surface had a close relation with the composition of organic and inorganic components. |
| 저자 |
황가영, 김형일
|
| 소속 |
충남대 |
| 키워드 |
Hard coating; sol-gel; UV curing; scratch resistance
|
| E-Mail |
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