Preparation method of corrosion-resisting high-conductivity wood electromagnetic shielding material

An electromagnetic shielding material and high conductivity technology, which is applied in the direction of metal material coating process, coating, liquid chemical plating, etc., can solve the problems of poor corrosion resistance and achieve strong corrosion resistance, fine coating, and low cost. Effect

Active Publication Date: 2015-09-30
DEHUA TB NEW DECORATION MATERIAL CO LTD
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Problems solved by technology

[0003] The present invention aims to solve the technical problem of poor corrosion resistance of wood with surface copper plating, nickel-phosphorus binary alloy and Ni-Fe-P ternary alloy, and provide a corrosion-resistant high-conductivity wooden electromagnetic shielding material preparation method

Method used

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  • Preparation method of corrosion-resisting high-conductivity wood electromagnetic shielding material
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  • Preparation method of corrosion-resisting high-conductivity wood electromagnetic shielding material

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specific Embodiment approach 1

[0027] Specific embodiment one: the preparation method of the corrosion-resistant highly conductive wooden electromagnetic shielding material of the present embodiment, carry out according to the following steps:

[0028] 1. The concentration of nickel sulfate is 20-40g / L, the concentration of sodium hypophosphite is 20-40g / L, the concentration of sodium citrate is 10-30g / L, the concentration of lactic acid is 2-10ml / L, acetic acid The concentration of sodium is 10-30g / L, and the concentration of thiourea is 1-5mg / L. Add nickel sulfate, sodium hypophosphite, sodium citrate, lactic acid, sodium acetate and thiourea into the water, mix well, and adjust the pH value 8 to 10 to obtain a solution;

[0029] 2. Add the surfactant and nano-alumina to the solution prepared in step 1, and ultrasonically disperse for 30-90 minutes to obtain a plating solution; the concentration of nano-alumina in the plating solution is 0.2-5g / L; the surfactant is the surface active agent. The active ag...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the concentration of nickel sulfate in step one is 30g / L, the concentration of sodium hypophosphite is 30g / L, the concentration of sodium citrate is 20g / L, lactic acid The concentration of sodium acetate is 5ml / L, the concentration of sodium acetate is 20g / L, and the concentration of thiourea is 3mg / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the concentration of nickel sulfate in step one is 35g / L, the concentration of sodium hypophosphite is 25g / L, the concentration of sodium citrate is 25g / L, lactic acid The concentration of sodium acetate is 7ml / L, the concentration of sodium acetate is 18g / L, and the concentration of thiourea is 4mg / L. Others are the same as in the first embodiment.

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Abstract

The invention provides a preparation method of a corrosion-resisting high-conductivity wood electromagnetic shielding material, relates to a surface chemical plating method for wood, and aims to solve the technical problem of poor decay resistance of wood on which copper, an Ni-P binary alloy and an Ni-Fe-P ternary alloy are plated in the prior art. The preparation method comprises the following steps: adding nickel sulfate, sodium hypophosphite, sodium citrate, lactic acid, sodium acetate and thiocarbamide into water; stirring to obtain a uniform mixture; adding the pH value of the mixture to be 8 to 10; adding a surfactant and nano alumina; stirring to obtain a uniform plating solution; soaking wood in a 3-aminopropyl triethoxy silane solution; drying the soaked wood; soaking the dried wood into a palladium chloride; soaking with a sodium hypophosphite solution; cleaning; soaking in the plating solution for chemical plating, so as to obtain the corrosion-resisting high-conductivity wood electromagnetic shielding material. The corrosion-resisting high-conductivity wood electromagnetic shielding material is as low as 127.86 [m]Omega/cm<2>, is higher than 45 dB in electromagnetic shielding efficiency, and can be applied to the fields of electronics, aviation and medicine.

Description

technical field [0001] The invention relates to a method for chemical plating on wood surfaces. Background technique [0002] Wood is a renewable natural organic polymer material. It not only has material properties such as light weight, sound insulation, and heat insulation, but also has unique decorative characteristics such as surface texture and color. However, due to its non-conductivity, the application field is restricted. In order to broaden the application fields of wood, electroless plating technology is adopted to prepare wood-based composite materials. So far, electroless plating of Cu, Ni-P alloy and Ni-Fe-P ternary alloy has been successfully realized on the surface of wood. However, the corrosion resistance of these coatings is not high, which limits the application of wood in special environments. Contents of the invention [0003] The present invention aims to solve the technical problem of poor corrosion resistance of wood with surface copper plating, n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/18C23C18/36
Inventor 王立娟石常洪
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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