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Preparation method for carbon fiber electroplating iron-nickel alloy

An iron-nickel alloy and carbon fiber technology, which is applied to the preparation field of electroplating iron-nickel alloy on the surface of carbon fiber, can solve the problems of inability to impart magnetism, low coercivity, high magnetic permeability and the like to carbon fiber, and achieves low cost and improved coating adhesion. Powerful and maneuverable effects

Inactive Publication Date: 2014-05-21
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nickel plating on the surface of carbon fiber can significantly improve its electrical conductivity, so that the composite material filled with it has better electromagnetic shielding properties, but it cannot endow carbon fiber with magnetic properties, so it is limited when used in the field of broadband electromagnetic shielding
[0004] Iron-nickel alloy is a low-frequency soft magnetic material with high permeability and low coercive force in a weak magnetic field. By controlling the heat treatment process and smelting technology, the alloy composition, phase composition and magnetic properties can be adjusted, but so far no See the report on electroplating iron-nickel alloy on the surface of carbon fiber

Method used

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  • Preparation method for carbon fiber electroplating iron-nickel alloy
  • Preparation method for carbon fiber electroplating iron-nickel alloy
  • Preparation method for carbon fiber electroplating iron-nickel alloy

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example 1

[0021] (1) Degumming and oxidation process 4K carbon fibers with a single filament diameter of 7-8um (a bundle of fibers is 4000 carbon fiber monofilaments) are first soaked in acetone for 24 hours, and then burned in a muffle furnace for degumming and oxidation. Degumming conditions: temperature 400°C, holding time 30min, heating rate 2°C / min, take out after cooling down to room temperature with the furnace after holding.

[0022] (2) The configuration of the electroplating solution is according to the weight ratio, first weigh 90g of NiSO 4 ·6H 2 O, 15g of NiCl 2 ·6H 2 O, 50g of FeSO 4 ·7H 2 O, 17.5g of C 6 h 5 Na 3 o 7 2H 2 O, 1.5g of C 7 h 5 NO 3 S (saccharin) and 20g of H 3 BO 3 Dissolve in 400mL of ultrapure water, stir evenly at room temperature, then weigh 0.2g of C 6 h 5 NaO 2 Dissolve S (sodium benzenesulfinate) in 50mL of ultrapure water, stir evenly with a glass rod, then mix the above two solutions, stir with a glass rod at room temperature for 10...

example 2

[0025] (1) Degumming and oxidation process 4K carbon fibers with a single filament diameter of 7-8um (a bundle of fibers is 4000 carbon fiber monofilaments) are first soaked in acetone for 24 hours, and then burned in a muffle furnace for degumming and oxidation. Conditions for degumming: temperature 400°C, holding time 30 minutes, heating rate 3-4°C / min, and take out with the furnace down to room temperature after holding.

[0026] (2) The configuration of the electroplating solution is according to the weight ratio, first weigh 80g of NiSO 4 ·6H 2 O, 15g of NiCl 2 ·6H 2 O, 40g of FeSO 4 ·7H 2 O, 17.5g of C 6 h 5 Na 3 o 7 2H 2 O, 1.5g of C 7 h 5 NO 3 S (saccharin) and 20g of H 3 BO 3 Dissolve in 400mL ultrapure water, stir evenly at room temperature, then weigh 0.2g of C 6 h 5 NaO 2 Dissolve S (sodium benzenesulfinate) in 50mL of ultrapure water, stir well with a glass rod, then mix the above two solutions, stir with a glass rod at room temperature for 10min,...

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Abstract

The invention belongs to the technical field of electroplating, and relates to a preparation method for a carbon fiber electroplating iron-nickel alloy. The preparation method comprises the following steps of performing degumming oxidation treatment on a carbon fiber bundle; preparing an electroplating solution, namely weighing 60 to 90 parts by weight of NiSO4.6H2O, 10 to 30 parts by weight of NiCl2.6H2O, 60 to 80 parts by weight of FeSO4.7HO, 15 to 20 parts by weight of C6H5Na3O7.2H2O, 1 to 3 parts by weight of C7H5NO3S and 10 to 30 parts by weight of H3BO3 respectively, dissolving the components in a proper amount of ultrapure water, weighing 0.1 to 0.3 part by weight of C6H5NaO2S, dissolving C6H5NaO2S in a small amount of ultrapure water, uniformly mixing the two solutions, and controlling the pH value to be 3 to 4.5; performing electroplating treatment on the surfaces of carbon fibers. According to the method, the magnetism of the electroplated carbon fibers can be improved by controlling the magnetism.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and relates to a preparation method for electroplating iron-nickel alloy on the surface of carbon fibers. Background technique [0002] As electronic products become more and more popular, while bringing convenience to our lives, the hazards of electromagnetic radiation caused by them are also increasing. Therefore, the elimination of electromagnetic shielding pollution is very important to improve the quality of human life. Compared with traditional metal shielding materials, carbon fiber has the advantages of light weight, high specific modulus, fatigue resistance, high strength and good electrical conductivity. The material has the outstanding advantages of small specific gravity, continuous production, and good comprehensive shielding effect, so it has broad application prospects in electronic products. [0003] At present, the methods of material surface metallization mainly include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56C25D7/06C25D5/54
Inventor 何芳李俊姣黄远陈亮
Owner TIANJIN UNIV
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