Preparation method of high-coating-rate nickel-coated graphite composite powder material

A nickel-coated graphite and composite powder technology, which is applied in the field of preparation of high-coverage nickel-coated graphite composite powder materials, can solve problems such as low production efficiency and environmental pollution, and achieve convenient processing, high wrapping rate, and improved quality Effect

Inactive Publication Date: 2020-07-14
苏州逸峰新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of preparation method of nickel-coated graphite composite powder material with high coating rate, to solve the present method about the preparation of nickel-coated graphite composite powder proposed in the above background technology, most of them have low production efficiency and low Environmental pollution, etc.

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  • Preparation method of high-coating-rate nickel-coated graphite composite powder material

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preparation example Construction

[0026] see figure 1 The present invention provides a technical solution: a method for preparing a high-coverage nickel-coated graphite composite powder material. The specific preparation steps of the high-coverage nickel-coated graphite composite powder material are as follows:

[0027] S1 cleaning effect on the surface of graphite powder: use sodium hydroxide solution with a mass concentration of 80-90g / L to treat the surface of graphite powder with cleaning oil;

[0028] Put the graphite powder after cleaning oil treatment into SnCl with a mass concentration of 3-5g / L 2 Carry out sensitization treatment in middle, the sensitization treatment time is 15-17min;

[0029] Put the sensitized graphite powder in PdCl 2 Activated in the solution, the activated pH is 1-2, and the temperature is 35-39 degrees Celsius;

[0030] Graphite powder is stored after cleaning oil treatment, sensitization treatment and activation treatment;

[0031] S2: Nickel-coated composite on the surfac...

Embodiment 1

[0041] The specific preparation steps of the preparation method of the high-coverage nickel-coated graphite composite powder material are as follows:

[0042] The particle size of graphite powder is 10μm;

[0043] S1 cleans the surface of graphite powder: use sodium hydroxide solution with a mass concentration of 80g / L to clean the surface of graphite powder with oil;

[0044] Put the graphite powder after the cleaning oil treatment into the SnCl with a mass concentration of 3g / L 2 Carry out sensitization treatment in sensitization treatment, the sensitization treatment time is 15min, the pH range of sensitization treatment is 1, and temperature is 25 degrees Celsius, during sensitization treatment, graphite powder is constantly stirred, and stirring speed is 20r / min;

[0045] Put the sensitized graphite powder in PdCl 2 Activated in solution, PdCl 2 The mass concentration of the solution is 0.03g / L, the activated pH is 1, and the temperature is 35 degrees Celsius;

[0046...

Embodiment 2

[0051] The specific preparation steps of the preparation method of the high-coverage nickel-coated graphite composite powder material are as follows:

[0052] The particle size of graphite powder is 15μm;

[0053] S1 cleans the surface of graphite powder: use sodium hydroxide solution with a mass concentration of 85g / L to clean the surface of graphite powder with oil;

[0054] The graphite powder after cleaning oil treatment is placed in the SnCl that mass concentration is 4g / L 2 Carry out sensitization treatment in middle, sensitization treatment time is 16min, and the pH range of sensitization treatment is 1.5, and temperature is 30 degrees Celsius, during sensitization treatment, graphite powder is stirred constantly, and stirring speed is 20r / min;

[0055] Put the sensitized graphite powder in PdCl 2 Activated in solution, PdCl 2 The mass concentration of the solution is 0.04g / L, the activated pH is 1.5, and the temperature is 37 degrees Celsius;

[0056] Graphite powder...

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Abstract

The invention belongs to the technical field of preparation of nickel-coated graphite composite powder, and particularly relates to a preparation method of a high-coating-rate nickel-coated graphite composite powder material. The preparation method of the high-coating-rate nickel-coated graphite composite powder material comprises the following specific preparation steps that S1, the surface of graphite powder is cleaned, the graphite powder is stored after being subjected to oil cleaning treatment, sensitization treatment and activation treatment; S2, graphite powder surface nickel-coated composite is carried out, specifically, the graphite powder treated in the step S1 is taken out and fully mixed with a plating solution, the plating solution comprises main salt, a reducing agent and a complexing agent; and S3, material cleaning after reaction is carried out, specifically, the nickel-coated graphite powder composite material obtained after reaction in the step S2 is taken out, the nickel-coated graphite powder composite material is washed with distilled water, and then the cleaned nickel-coated graphite powder composite material is dried. According to the scheme, the preparationprocess is simple, the nickel coating rate is high, and the product quality is improved; and the prepared excess materials are convenient to treat, and the pollution to the environment is small.

Description

technical field [0001] The invention relates to the technical field of preparation of nickel-coated graphite composite powder, in particular to a preparation method of a nickel-coated graphite composite powder material with high coating ratio. Background technique [0002] In recent years, with the popularization of various electrical appliances, the wide application of smart phones, computers, communication satellites, high-voltage transmission grids and some medical equipment, especially with the miniaturization, integration and light weight of electronic circuits and components, daily The electronic products used are easily disturbed by external electromagnetic wave interference. The equipment itself also emits electromagnetic waves, causing the leakage of electromagnetic radiation in the environment, which has become a major environmental pollution problem. The normal operation of electronic instruments can be guaranteed by shielding electromagnetic waves. Therefore, el...

Claims

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Application Information

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IPC IPC(8): B22F1/02C23C18/18C23C18/34H05K9/00H01B1/02H01B1/04H01B13/00
CPCC23C18/1893C23C18/34H05K9/0081H01B1/04H01B1/02H01B13/00B22F1/17
Inventor 张雪峰赵思洋李逸兴刘昊鹏韦钱李帅兴
Owner 苏州逸峰新材料科技有限公司
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