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Method for preparing flaky copper powder

A flaky copper powder and flaky technology, which is applied in the field of metal powder material preparation, achieves the effects of high specific surface area, prevention of agglomeration, and simple purification process

Inactive Publication Date: 2018-09-07
NANJING FORESTRY UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

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  • Method for preparing flaky copper powder
  • Method for preparing flaky copper powder
  • Method for preparing flaky copper powder

Examples

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Embodiment Construction

[0046] The present invention will be further described in detail below in conjunction with examples. It should be noted that the following are non-limiting examples of the preparation method of a kind of flake copper powder according to the present invention, and these examples are provided only for the purpose of further describing the present invention in detail, not for the purpose of this invention. Any formal and substantial limitations of the invention; it must be pointed out that for those skilled in the art, without departing from the method of the present invention, those skilled in the art can also make some improvements, supplements and optimizations, these improvements , Supplement and optimization should also be regarded as the scope of protection of the present invention; all professional and technical personnel familiar with the art, without departing from the scope of the method of the present invention, use the technical scheme and technical content of the pres...

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Abstract

The invention provides a method for preparing flaky copper powder. The method is characterized in that water, copper salt, a complexing agent, a copper plating brightening agent, a dispersing agent, an antioxidant, nickel salt, a sublimable flaky compound crystal template and a reducing agent are taken as raw materials, copper plating is carried out on the surface of the sublimable flaky compoundcrystal template by adopting a chemical plating method until copper ions react completely, and after the reaction is finished, the flaky copper powder is directly obtained through a separation and purification treatment and a processing treatment without ball milling. The technical scheme of the method has the advantages that the energy consumption is low, environmental pollution is low, the production process is simple, the process route is short, the investment to the large-scale production equipment is low, the production efficiency is high, the production cost is low, and the dispersion performance and the conductivity of the products are good; and the method is suitable for large-scale production and capable of solving the problems exist in the ball milling process when the ball milling process is used for preparing the flaky copper powder, and has good industrialization prospect.

Description

technical field [0001] The invention relates to a preparation method of flaky copper 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/02
CPCB22F9/24B22F1/068B22F1/17
Inventor 刘福生
Owner NANJING FORESTRY UNIV
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