Synthesis and Character of Amphiphobic Calcium Carbonate Nanoparticles In Situ

Abstract:

Amphiphobic vaterite with a size of about 50 nm, was prepared via crystallization of CaCO₃ with perfluorooctane surfapropyl betaine（DF-921）in methanol by mimicking the process of biomineralization. The products were analyzed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and contact angle analysis. The results indicate that the CaCO₃ powder samples had both hydrophobic and oleophobic properties. The DF-921 used in this research not only controlled the crystal type of the CaCO₃ particles but also changed the surface properties of the final products.

• Periodical: Advanced Materials Research (Volumes 295-297)
• Pages: 1675-1679
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.295-297.1675
• Online since: July 2011
• Authors: Chang Yu Liu, Shu Liang Wang, Jian Li, Cheng Yu Wang
• Keywords: Amphiphobic, Coating, Nanostructure, Surface

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