Environment, Energy and Sustainable Development

63

Environment, Energy and Sustainable Development – Sung, Kao & Chen (eds)

© 2014 Taylor & Francis Group, London, ISBN 978-1-138-00053-7

Preparation of ultrafine copper powder by liquid phase reduce method

and study on its dispersion and heat-conducting in heat transfer oil

Junxia Guo

Railway Police College, Zhengzhou, P.R. China

ABSTRACT: When the mole ratio of reactant is n(CuSO

4

):n(N

2

H

4

):n(NaOH) = 1:3:12 with addition

of the complexing agent EDTA and dispersing agent, the spherical ultrafine copper powder was prepared

with N

2

H

4

reducing CuSO

4

and was used in heat transfer oil as conductive additives. The as-prepared cop-

per powder was characterized by X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM),

granularity distribution, ...