Study on the Surface Modification of Potassium Titanate Whisker

Abstract:

The surface of potassium titanate whisker (PTW) was coated with Al2O3 derived from NaAlO2 solution via a liquid deposition method, and coupling agent KH570 was used to treat the surface of Al2O3 coated PTW. Scanning electron microscope (SEM), X-ray powder diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and surface contact angle measurement were used to characterize the effect of surface modification. The results showed that the surface of PTW was uniformly coated by Al2O3 nanoparticles. After modified by KH570, the modified Al2O3/PTW showed better dispersion in ethanol solvent and the surface of modified Al2O3/PTW became more hydrophobic-lipophilic than that of modified uncoated PTW. It is indicated that the modified Al2O3/PTW could be dispersed much better than the modified uncoated PTW in organic phase.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 2119-2126
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.2119
• Online since: November 2011
• Authors: Shan Yun, Qian Qian Song, Dan Dan Gao, Gui Min Qian, Dong Mei Zhao
• Keywords: Al₂O₃, Hydrophobic-Lipophilic, Modification, Potassium Titanate Whisker

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