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http://dx.doi.org/10.6111/JKCGCT.2019.29.2.071

Fabrication and characteristics of TiO2 coating solution with silica-based inorganic binder  

Kang, Woo-kyu (Department of Advanced Materials Engineering Graduate School, Chungbuk National University)
Kim, Hye-Jin (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Jang, Gun-Eik (Department of Advanced Materials Engineering Graduate School, Chungbuk National University)
Abstract
Recently, the demand of labels for product management is increasing, as the automation system becomes more common. the development of functional labels which can be used in various environments has been rapidly proceeded. In the case of a printed circuit board, barcode labels with thermal and chemical stability are generally used due to a high temperature process around $300^{\circ}C$ and chemical cleaning in the manufacturing process. However, the yellowing phenomenon of labels that can lower the resolution of printed barcode image still needs to be prevented. In this study, we prepared a composite coating layer using a silica inorganic binder and a titanium dioxide white pigment, and developed a functional labels with thermal and chemical stability. The silica inorganic binder prepared by sol-gel process was confirmed to show excellent adhesion and abrasion resistance with the polyimide film. The white coating layer could be formed on the polyimide film with mixing the silica inorganic binder and titanium dioxide white pigment. The prepared coating layer showed excellent whiteness and glossiness above $400^{\circ}C$. The excellent chemical stability of the coating layer was also confirmed by the chemical treatment with acidic (pH 1.6) and basic (pH 13.6) cleaners.
Keywords
Functional labels; Printed circuit board; Silica inorganic binder; Titanium dioxide; Thermal and chemical stability;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 G.H. Lee, E.Y. Yoon and S.J. Lee, "A study on the thermal distribution of PCB in the reflow soldering process with thermal-air flow simulation", J. of the Korean Association of Defense Industry Studies 16 (2009) 174.
2 S.K. Kim, Y.S. Son and J.Y. Shin, "Analysis on the effect of operating conditions on the thermal response of electronic assemblies during infrared reflow soldering", Korean Society of Mechanical Engineers Autumn Conference (2009) 1063.
3 J.R. Williams, "Lead-free implications for barcode labels", POLYONICS, INC. 867 Rt 12, Westmoreland, from http://www.polyonics.com.
4 A. Dennison, "The ideal balance of high temperature performance and function", Label and Packaging Materials (2014).
5 Y.J. Kim, "A study on corrosion resistant characteristic of Zn coating solution by inorganic.inorganic binder" (Korea Polytechnic University, Siheung, 2011).
6 Y.B. Ryu and M.S. Lee, "Infrared spectra and thermal properties of sodium silicate solutions", Korean J. Metals & Mater. 56 (2018) 72.   DOI
7 J.H. Yang and K.C. Song, "Effect of types of colloidal silica on properties of hydrophilic coating films", Korean Chem. Eng. Res. 55 (2017) 830.   DOI
8 S. IsIam, P.A. Rahman, Z. Othaman, S. Riaz, M.A. Saeed and S. Naseem, "Preparation and characterization of crack-free sol-gel based $SiO_2$-$TiO_2$ hybrid nanoparticle film", J. Sol-gel Sci. & Technol. 68 (2013) 162.   DOI
9 B.R. Yoo and D.E. Jung, "Recent progress in the development of Si-based materials for organic-inorganic hybrid system", Polymer Science and Technology 20 (2009) 124.
10 T.Y. Kim, J. Jung and I.D. Jung, "Preparation of superhydrophobic surfaces using agglomeration control of silica nanoparticles by organic solvent and non-fluoride self-assembled monolayers", Adhesion and Interface 16 (2015) 116.
11 B.S. Bae, "Inorganic-organic hybrid materials coating", Polymer Science and Technology 12 (2001) 716.