Diffusion process of an ink drop in core-shell silica-titania pigment particles

作者：Jiang, B.^*; Huang, Y. D.; Zhao, L. W.

来源：Materials and Design, 2016, 92: 114-119.

DOI：10.1016/j.matdes.2015.12.021

• Coating
• Functional composites
• Nano-particle

Recording coatings have been successfully prepared by the core-shell structural silica-titanium dioxide particles, which were synthesized using sol-gel methods and fabricated as a close-packed colloidal crystalline array. The size of the nano-silica particles (50-100 nm) was controlled via varying the concentration of ammonium hydroxide. The silica spheres coated with titania (core-shell structure) were prepared by a self-assembly coating deposition process. Transmission electron microscopy and scanning electron microscopy were used to analyze the microstructure of the core/shell composite particles. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy were used to analyze the molecular structure of the composite particles and the formation of the chemical bonds (Ti-O and Ti-O-Si) on the shell surface. The prepared composite pigment particles were applied in recording materials. The diffusion process of the ink drop on the surface of the recording materials was studied by the edge detection method. We also investigated the role of the ink drop in the diffusion process of the different composite pigment particle.

• 出版日期2016-2-15
• 单位哈尔滨工业大学