Synthesis and character of super-hydrophobic CaCO3 powder in situ

被引：36

作者：

Wang, Chengyu ^{[1
]}

Piao, Cheng ^{[2
]}

Zhai, Xianglin ^{[1
]}

Hickman, F. Neal ^{[2
]}

Li, Jian ^{[1
]}

机构：

[1] NE Forestry Univ, Coll Mat Sci & Engn, Harbin 150040, Peoples R China

[2] Louisiana State Univ AgCtr, Calhoun Res Stn, Calhoun, LA USA

来源：

POWDER TECHNOLOGY | 2010年 / 200卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Powder technology; Surfaces; Vaterite; Super-hydrophobic; Lamellar; CALCIUM-CARBONATE; FILMS;

D O I：

10.1016/j.powtec.2010.02.016

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

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 degrees. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：84 / 86

页数：3

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