Preparation method for flaky nickel powder

Abstract

The invention provides a preparation method for flaky nickel powder. According to the method, water, nickel salt, a complexing agent, a nickel plating brightening agent, a dispersing agent, an antioxidant, a sublimable flaky compound crystal template and a reducing agent serve as raw materials, a chemical plating method is adopted, the surface of the flaky compound crystal template is plated withnickel until nickel ions are reacted completely, and after a reaction is completed, by means of the technological processes of separation and purification and processing treatment, the flaky nickel powder is directly obtained without ball milling. By means of the technical scheme, the preparation method has a series of beneficial effects that the energy consumption is low, the environmental pollution is small, the production process is simple, the process route is short, the investment of large-scale production equipment is small, the production efficiency is high, the production cost is low,and the dispersing performance and the conductive performance of the product are good; and the preparation method is suitable for large-scale production, the problem existing in the process of preparing the flaky nickel powder through a ball milling method is solved, and the industrialization prospects are good.

Description

technical field [0001] The invention relates to a preparation method of flake nickel powder, which belongs to the technical field of preparation of metal powder materials. Background technique [0002] Metal powders are divided into four types according to particle shape: spherical, random particle, flake and wire. Different from spherical metal powder and granular metal powder, flake metal powder has excellent catalytic performance, excellent sintering performance, excellent thixotropic performance, excellent adhesion, good shielding effect, excellent electromagnetic wave reflection ability and excellent Excellent electrical conductivity makes it widely used in chemical catalysis, powder metallurgy, conductive coatings, conductive adhesives, conductive inks and conductive pastes. [0003] At present, spherical metal powders or granular metal powders are mostly used in the fields of chemical catalysis, electromagnetic shielding coatings, radar wave reflecting coatings, cond...

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Problems solved by technology

So far, this method has not been reported in the literature

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