Surface Modification and Structural Characterization of Tourmaline Powder by KH-171

Kui CUI; Yingmo HU; Baobao PANG; Shasha WU; Zhen ZHANG; Sufang GUO

doi:10.3969/j.issn.1000-6532.2024.03.015

Kuangchan zonghe liyong (Jun 2024)

Surface Modification and Structural Characterization of Tourmaline Powder by KH-171

Kui CUI,
Yingmo HU,
Baobao PANG,
Shasha WU,
Zhen ZHANG,
Sufang GUO

Affiliations

Kui CUI: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China
Yingmo HU: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China
Baobao PANG: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China
Shasha WU: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China
Zhen ZHANG: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China
Sufang GUO: School of Materials Science and Technology, China University of Geosciences, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, Beijing 100083, China

DOI: https://doi.org/10.3969/j.issn.1000-6532.2024.03.015
Journal volume & issue: Vol. 45, no. 3
pp. 92 – 95

Abstract

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This is an article in the field of mineral materials. The tourmaline powder was modified with silane coupling agent KH-171, and the process conditions were optimized with the parameters of contact angle and turbidity of the modified product in liquid paraffin. The test results showed that the contact angle of the resulting modified tourmaline reached 133 ℃ when reacted at 60 ℃ for 2 h at a system pH value of 9, a dosage of modifier KH-171 of 2 mL, and an alcohol-to-water ratio of 1∶5, showing excellent hydrophobic properties. The modified tourmaline was characterized by IR, SEM and XRD. The results showed that the organic functional groups with carbon-carbon double bonds were successfully connected to the surface of tourmaline without changing the original crystal structure, but the agglomeration of tourmaline reduced effectively and showed better dispersion performance.

Published in Kuangchan zonghe liyong

ISSN: 1000-6532 (Print)
Publisher: Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.kczhly.com/indexen.htm

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