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유무기 TiO2-SiO2 혼성코팅에 미치는 전구체 배합비율의 영향 KCI 등재 SCOPUS

Effect of Precursor Ratio on the Properties of Inorganic-Organic Hybrid TiO2-SiO2 Coating

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한국재료학회지 (Korean Journal of Materials Research)
한국재료학회 (Materials Research Society Of Korea)
초록

When a single inorganic precursor is used for the synthesis of a sol-gel coating, there is a problem of cracking on the surface of coating layer. In order to solve this problem of surface cracking, we synthesized inorganic-organic coatings that have hybrid properties of inorganic and organic materials. Sols of various ratios (1:0.07, 0.2, 0.41, 0.82, 1.64, 3.26, 6.54, 13.2) of an inorganic precursor of Tetrabutylorthotitanate (Ti(OBu)4, TBOT) and an organic precursor of γ-Methacryloxy propyltrimethoxysilane (MAPTS) were prepared and coated on stainless steels (SUS316L) by dip coating method. The binding structure and the physical properties of the synthesized coatings were analyzed by FT-IR, FE-SEM, FIB (Focused Ion Beam), and a nano-indenter. Dynamic polarization testing and EIS (electrical impedance spectroscopy) were carried out to evaluate the micro-defects and the corrosion properties of the coatings. The prepared coatings show hybrid properties of inorganic oxides and organic materials. Crack free coatings were prepared when the MAPTS ratio was above a critical value. As the MAPTS ratio increased, the thickness and the corrosion resistance increased, and the hardness decreased.

목차
1. 서 론
2. 실험 방법
3. 결과 및 고찰
4. 결 론
References
저자
  • 김동규(충북대학교 공과대학 공업화학과) | Dong Kyu Kim
  • 맹완영(한국원자력연구원 원자력소재개발부) | Wan Young Maeng Corresponding author