A method for preparing
copper powder through an environment-friendly surface
active agent comprises the following steps that firstly, the environment-friendly surface
active agent, addition agents, CuSO4.5H2O and water are selected according to a certain proportion to be prepared into an
electrolyte; secondly, electrolytic deposition is carried out on the
electrolyte, and
copper powder mixed liquid is obtained; thirdly,
copper powder is extracted,
filtration or centrifugal treatment is carried out on the copper powder mixed liquid, and after suction
filtration and
drying, copper powder is obtained; and fourthly, the copper powder is put into a packaging bag, and after
inert gases are fed into the packaging bag, sealing storage is carried out. According to the copper powder prepared throughthe method, the particle size range is 30-100 nm or 200-800 nm, the purity is 99% or above, the
particle size distribution is uniform, and feature consistency is good; in the preparation process, thecopper powder cannot adhere to a negative plate, the self-
desorption performance is good, the negative plate is easy to wash, and automatic and
continuous production can be achieved; the
corrosion amount to an
anode plate is small, environment friendliness is achieved, no
pollution is caused, and the
energy consumption is low; and the prepared copper powder is good in dispersibility and easy to collect.