Surface modification and dispersion of nanodiamond in clean oil--颗粒学报PARTICUOLOGY

Zhu, Y., Xu, X., Wang, B., & Feng, Z. (2004). Surface modification and dispersion of nanodiamond in clean oil. China Particuology, 2(3), 132-134. https://doi.org/10.1016/S1672-2515(07)60039-6

Surface modification and dispersion of nanodiamond in clean oil

Yongwei Zhu ^{a b *}, Xiangyang Xu ^{a c}, Baichun Wang ^a, Zhijing Feng^b

a Research & Development Center, Changsha Research Institute of Mining and Metallurgy, Changsha 410012, P. R. China
b Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, P. R. China
c Department of Materials Science and Engineering, Central-South University, Changsha 410083, P. R. China

10.1016/S1672-2515(07)60039-6

Volume 2, Issue 3, June 2004, Pages 132-134

Received 24 March 2004, Accepted 7 May 2004, Available online 27 November 2007.

E-mail: y.w.zhu@263.com

Highlights

Abstract

The effect of different kinds of surfactants on the size distribution of nanodiamond particles in clean oil was studied. Results show that the dispersing stability of nanodiamond modified with surfactants YS-1 and SB-18 simultaneously is much better than those modified with either of them because of synergism of the surfactants. And the particle size distribution in the system can be improved remarkably after the adoption of hyperdispersants such as SA-E and SA-F. Anchoring groups of those hyperdispersants can be bonded with the particle surface by chemical and/or hydrogen bonding and their soluble chains are well compatible with the dispersion media. As a result, the particles are uniformly distributed in the system owing to the steric stabilization. A very stable clean-oil based nanodiamond suspension with an average particle size of around 53.2 nm was prepared.

Graphical abstract

Keywords

surface modification; nanodiamond particle; clean oil; dispersion

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