Surface Modification of Natural Fibrous Brucite with Stearic Acid

Fibrous brucite,a kind of brucite with unique structure and physical properties,was modified with stearic acid as a surface modifier.In order to investigate the mechanism of surface modification,the fixation of stearic acid on fibrous brucite and the induced changes in surface properties were studie...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2016-02, Vol.31 (1), p.108-112
Main Authors: Cao, Xi, Chuan, Xiuyun, Zhou, Shuhui, Huang, Dubin
Format: Article
Language:English
Subjects:
Advanced Materials
Brucite
Chemistry and Materials Science
Infrared spectroscopy
Magnesium hydroxide
Materials Science
Minerals
Scanning electron microscopy
Stearic acid
X-ray diffraction
XRD分析
天然
扫描电子显微镜
矿物结构
硬脂酸
红外光谱
纤维水镁石
表面改性剂
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Summary:Fibrous brucite,a kind of brucite with unique structure and physical properties,was modified with stearic acid as a surface modifier.In order to investigate the mechanism of surface modification,the fixation of stearic acid on fibrous brucite and the induced changes in surface properties were studied by using X-ray diffraction（XRD）,scanning electron microscopy（SEM）,infrared spectroscopy（IR）,Raman spectroscopy and thermo-gravimetric analysis（TGA）.XRD analysis indicates that the modification of fibrous brucite with stearic acid does not cause any changes in the structure of fibrous brucite mineral.Spectroscopy and thermal analysis show that the surfactant molecules are not only directly adsorbed on the surface of the mineral,but also chemisorbed on mineral surface by forming chemical bonds between the modifier and magnesium hydroxide.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-016-1338-3