Surface Modification of Magnesium Hydroxide with Stearic Acid

Dong Sheng Zhang; Zhi Qi Liu; Li Juan Li; Li Xia Zhu

doi:10.4028/www.scientific.net/AMR.602-604.1693

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Surface Modification of Magnesium Hydroxide with...

Surface Modification of Magnesium Hydroxide with Stearic Acid

Abstract:

The surface of magnesium hydroxide (MH) was modified with stearic acid (SA). The modification mechanism was analyzed using a scanning electron microscope, thermogravimetric analysis, differential scanning calorimetry, and Fourier transform infrared spectroscopy. The results showed that an esterification reaction occurred between SA and MH. The modification effect was evaluated by activation index and oil absorbance rate. The results indicated that the optimum technological conditions were as follows: SA dosage was 1.25 wt. % at 70 °C for 10 min at a stirring rate of 2000 rpm. As a result, both dispersion and hydrophobicity of modified MH were remarkably improved.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

1693-1699

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.1693

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Online since:

December 2012

Authors:

Dong Sheng Zhang, Zhi Qi Liu, Li Juan Li, Li Xia Zhu

Keywords:

Magnesium Hydroxide, Stearic Acid, Surface Modification

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