A method for electroless nickel-phosphorus plating of quartz fibers

A technology of electroless nickel phosphorus and quartz fiber plating, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of complex process and high cost, achieve simplified process flow, strong coating adhesion, reduce cost effect

Active Publication Date: 2020-10-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the complex process and high cost of traditional electroless nickel-phosphorus plating, the present invention provides a method for electroless nickel-phosphorus plating on quartz fibers. The method utilizes the catalytic effect of nickel itself, by adding an activator to the plating solution, and The cooperation between the rotor and the mechanical grinding of the quartz fiber can directly deposit the nickel-phosphorus coating on the surface of the quartz fiber, eliminating the pretreatment process of roughening, sensitization and activation, and avoiding the use of toxic and expensive palladium chloride. Good prospects for industrial application

Method used

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  • A method for electroless nickel-phosphorus plating of quartz fibers
  • A method for electroless nickel-phosphorus plating of quartz fibers
  • A method for electroless nickel-phosphorus plating of quartz fibers

Examples

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Effect test

Embodiment 1

[0023] (1) the preparation concentration is the nickel sulfate hexahydrate of 30g / L, sodium hypophosphite monohydrate of 30g / L, sodium acetate trihydrate of 22g / L, citric acid of 18g / L and ammonium bifluoride of 16g / L earlier aqueous solution, and then adjust the pH of the aqueous solution to 6.5 with ammonia water to obtain a plating solution;

[0024] (2) Transfer the plating solution prepared in step (1) to a fluorinated plastic container, and then place it on a 85-2a digital display constant temperature magnetic stirring heater to heat the plating solution to 80°C;

[0025] (3) Fix the 95tex quartz fiber in the beaker, and place the rotor on the quartz fiber, add the plating solution heated in step (2), then place the beaker on the 85-2a digital display constant temperature magnetic stirring heater to keep 80 ℃ constant temperature, and set the rotor speed to 490r / min, deposit under the friction between the rotor and the quartz fiber, the plating solution turns black after...

Embodiment 2

[0031] On the basis of the embodiment, the rotor speed in the embodiment 1 is replaced by 280r / min by 490r / min, other steps and deposition conditions are constant, the plating solution starts to turn black when depositing for 40min, and the nickel-phosphorus coating is obtained on the quartz fiber .

[0032] Due to the mechanical grinding effect of the rotor and the quartz fiber, the nickel-phosphorus, which has a weak binding force with the quartz fiber, enters the plating solution, thereby causing the spontaneous decomposition of the coating. Therefore, the instantaneous decomposition of the nickel-phosphorus coating can be used as a quantitative indicator when deposited to a certain extent. From Example 1 and Example 2, it can be seen that the faster the rotor speed is, the faster the coating is deposited.

Embodiment 3

[0034] (1) the preparation concentration is the nickel sulfate hexahydrate of 30g / L, sodium hypophosphite monohydrate of 30g / L, sodium acetate trihydrate of 22g / L, citric acid of 18g / L and ammonium bifluoride of 12g / L earlier aqueous solution, and then adjust the pH of the aqueous solution to 6.5 with ammonia water to obtain a plating solution;

[0035] (2) Transfer the plating solution prepared in step (1) to a fluorinated plastic container, and then place it on a 85-2a digital display constant temperature magnetic stirring heater to heat the plating solution to 80°C;

[0036] (3) Fix the 95tex quartz fiber in the beaker, and place the rotor on the quartz fiber, add the plating solution heated in step (2), then place the beaker on the 85-2a digital display constant temperature magnetic stirring heater to keep 80 ℃ constant temperature, and set the rotor speed to 280r / min, deposit under the friction between the rotor and the quartz fiber, the plating solution turns black after...

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Abstract

The invention relates to a method for chemical nickel-phosphorus plating of quartz fibers, and belongs to the technical field of chemical nickel plating. According to the method, the catalytic actionof nickel is utilized, an activating agent is added into a plating solution, through the matching effect of a rotor and the quartz fiber mechanical grinding, a nickel-phosphorus coating can be directly deposited on the surface of the quartz fibers, the pre-treatment process of coarsening, sensitizing and activating is omitted, meanwhile, the use of palladium chloride with toxicity and high price is avoided, the process flow is simplified, the cost is reduced, the operation safety is improved, and the method has a good industrial application prospect.

Description

technical field [0001] The invention relates to a method suitable for chemical nickel-phosphorous plating of quartz fibers, which belongs to the technical field of chemical nickel plating. Background technique [0002] In recent years, the development of material science has become increasingly popular. Surface engineering has been widely used in military and civilian fields due to its unique advantages of adding other properties to materials without changing the overall properties of materials. Quartz fiber is a high-purity SiO 2 , has excellent characteristics such as high temperature resistance, corrosion resistance, good chemical stability, high electrical insulation and good dielectric properties. It is used as a reinforcing material to form a fiber-reinforced wave-absorbing composite material with a resin or ceramic matrix and filled with absorbents. For this kind of fiber-reinforced microwave-absorbing composite materials, filling the matrix with absorbents has disad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36
CPCC23C18/1664C23C18/36
Inventor 陈为为杨赟杰卜爱明张永福向艳杨霞程焕武王鲁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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