Nickle-coated copper micrometer sheet of core-shell structure and preparation method and application thereof
A technology of core-shell structure and nickel-coated copper, which is applied to the core-shell structure of nickel-coated copper micro-sheets. In the field of preparation, it can solve the problems of poor control, few methods, and high nickel content in composite powders, and achieve excellent electrical conductivity and thermal conductivity. Stability, good anti-oxidation effect
Active Publication Date: 2018-09-21
UNIV OF SCI & TECH OF CHINA
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Abstract
The invention provides a nickle-coated copper micrometer sheet of a core-shell structure and a preparation method and application thereof. The method comprises the steps that ethylene glycol and a micrometer copper sheet are mixed, and a reducing agent and nickle salt are added for reaction to obtain the nickle-coated copper micrometer sheet of the core-shell structure, wherein the mass ratio of the micrometer copper sheet to the nickle salt is (7-8) to (1-1).1. According to the method, the ethylene glycol is used as a solvent, and the ethylene glycol can reduce ion diffusion, so that the reaction dynamics are controlled, and a layer of continuous and compact nickle is obtained on the surface of the micrometer copper sheet through electroless deposition; due to a self-limiting growing effect, the nickle layer does not overgrow, the thickness is well controlled, nickle-coated copper still retains the sheet-like morphology with the original high length-width ratio, the original sheet-like structure with the high length-width ratio remains, the nickle-coated copper micrometer sheet of the core-shell structure is obtained, and under protection of nickle, the copper sheet has high oxidation resistance; the nickle layer is compact and thin, so that the nickle-coated copper micrometer sheet has excellent conductivity and thermal stability; the nickle-coated copper micrometer sheet hasgood application prospects in preparation of conductive filler or electromagnetic shielding materials or heat conduction materials.
Application Domain
Transportation and packagingMetal-working apparatus +1
Technology Topic
SolventIon +12
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PUM
Property | Measurement | Unit |
Concentration | 0.8 ~ 1.2 | mol/l |
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