Surface Modification of Nano-Al2O3 with Stearic Acid

Min Hong Xu; Jian Li Ma; Meng Xia Qian; Li Hua Jiang

doi:10.4028/www.scientific.net/KEM.703.246

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 703Surface Modification of Nano-Al2O3 with Stearic...

Surface Modification of Nano-Al₂O₃ with Stearic Acid

Abstract:

Surface modification of nanoAl₂O₃ with stearic acid by dry method was researched. The structures of nanoAl₂O₃ before and after modified were characterized by IR. The modification effect on nanoAl₂O₃ was measured with the activation index. In addition, the influence factors of modifier dosage, modification time and modification temperature were also discussed. The results showed that nanoAl₂O₃ had been successfully modified with stearic acid. The hydrophily and lipophilicity experiments indicated that modified nanoAl₂O₃ possessed lipophilicity property and could disperse in xylene. The optimal conditions of modification were as follows: the stearic acid was 7.5 wt%, based on the quality of nanoAl₂O₃, modification time was 50 min and temperature was 150 ^○C.

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Advanced Materials and Engineering Materials V

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Key Engineering Materials (Volume 703)

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246-250

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.703.246

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Online since:

August 2016

Authors:

Min Hong Xu*, Jian Li Ma, Meng Xia Qian, Li Hua Jiang

Keywords:

Dry Method, Nano-Al₂O₃, Stearic Acid, Surface Modification

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