Synthesis and character of super-hydrophobic CaCO3 powder in situ

Autor:	Xianglin Zhai, Jian Li, F. Neal Hickman, Chengyu Wang, Cheng Piao
Rok vydání:	2010
Předmět:	Scanning electron microscope General Chemical Engineering Analytical chemistry law.invention Contact angle chemistry.chemical_compound chemistry Chemical engineering law Vaterite Lamellar structure Crystallization Fourier transform infrared spectroscopy Sodium carbonate Powder diffraction
Zdroj:	Powder Technology. 200:84-86
ISSN:	0032-5910
DOI:	10.1016/j.powtec.2010.02.016
Popis:	In this paper, we present a novel and simple synthetic method for the preparation of super-hydrophobic lamellar vaterite. The crystallization of vaterite was conducted by the reaction of sodium carbonate with calcium chloride in the presence of oleic acid and heptadecafluorodecyl-trimethoxysilane (FAS-17). The resulting products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and contact angle measurements. The results revealed that oleic acid and FAS-17 play an important role in determining the structure and morphology of the sample. We also demonstrate in situ surface modification of the particles. The contact angle of the modified vaterite reached 152°.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::071f45396beef7d7449c965e37ef450d https://doi.org/10.1016/j.powtec.2010.02.016 Zobrazit plný text záznamu Full Text from ScienceDirect