A kind of preparation method of copper-zinc-iron ternary alloy electroless coating on aramid fiber surface

A ternary alloy, chemical plating technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problem that the aramid surface is difficult to achieve the desired effect, the aramid surface bonding force is difficult to guarantee, and the consumption of ethanol It can meet the problems of large quantity and other problems, and achieve the effect of satisfying electrical conductivity, atmospheric corrosion resistance and simple method.

Inactive Publication Date: 2016-03-02
SHANDONG JIANZHU UNIV
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Problems solved by technology

Some aramid fiber modification methods currently reported include coarsening treatment with aqueous solution of sodium hydroxide and absolute ethanol (CN201310685423.7, CN201210425097.1) and powder modification treatment such as nano-titanium oxide and nano-zirconia (CN200710099472.7 ), etc., the former consumes a lot of ethanol, a large amount of organic matter volatilizes, is flammable and explosive, and this method is difficult to achieve the desired effect on the surface of aramid fiber with high chemical stability; the latter uses nano-powder modification, which greatly improves The surface energy of the aramid fiber surface, but the process is complicated, and the binding force of the powder on the aramid fiber surface is difficult to guarantee

Method used

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  • A kind of preparation method of copper-zinc-iron ternary alloy electroless coating on aramid fiber surface
  • A kind of preparation method of copper-zinc-iron ternary alloy electroless coating on aramid fiber surface
  • A kind of preparation method of copper-zinc-iron ternary alloy electroless coating on aramid fiber surface

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preparation example Construction

[0026] In order to prepare metallized aramid fibers with conductive, electromagnetic shielding functions and stable properties, the invention provides a method for preparing an electroless copper-zinc-iron-iron ternary alloy coating on the surface of aramid fibers, comprising the following steps:

[0027] (1) Aramid fiber surface modification: including two continuous processes of aramid fiber surface modification by ultraviolet light irradiation and surface nano-film modification;

[0028] (2) Low-concentration colloidal palladium treatment: including low-concentration colloidal palladium activation solution activation, water washing, degumming, and water washing processes;

[0029] (3) Electroless copper-zinc-iron ternary alloy plating process: the aramid fiber treated with surface modification and low-concentration colloidal palladium is immersed in the copper-zinc-iron ternary alloy chemical plating solution, and copper, zinc, and iron ions are treated with B Aldehydic aci...

Embodiment 1

[0037] The surface of the aramid fiber is irradiated continuously with ultraviolet light with a wavelength of 200nm for 60s at a distance of 50mm from the surface of the aramid fiber, and the surface of the aramid fiber is irradiated and modified; then the surface of the aramid fiber is modified with a nano-sized film, and an environmentally friendly water-based nano-sized treatment solution is used. Containing 0.2% by mass fraction of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, 0.03% bis-[γ-(triethoxysilyl)propyl]tetrasulfide, 0.005% The aqueous solution of sodium dodecyl sulfonate was left to stand at room temperature for 72 hours to prepare a hydrosol, and the aramid fiber was immersed in the hydrosol for 3.0 minutes and dried at 60°C for 15 minutes; then soaked in a low-concentration colloidal palladium activation solution at room temperature In 5 minutes, the activation solution was composed of 0.03g / LPdCl 2 , 1g / LVC, 5g / LSnCl 2 , 5mL / L hydrochloric acid, the balance...

Embodiment 2

[0039] The surface of the aramid fiber is irradiated continuously with ultraviolet light with a wavelength of 100nm for 90s at a distance of 100mm from the surface of the aramid fiber, and the surface of the aramid fiber is irradiated and modified; then the surface of the aramid fiber is modified with a nano-sized film, and an environmentally friendly water-based nano-sized treatment solution is used. Containing 0.1% N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, 0.05% bis-[γ-(triethoxysilyl)propyl]tetrasulfide, 0.001% The aqueous solution of sodium dodecyl sulfonate was left to stand at room temperature for 60 hours to prepare a hydrosol, and the aramid fiber was soaked in the hydrosol for 2.0 minutes, and dried at 70°C for 5 minutes; then soaked in a low-concentration colloidal palladium activation solution at room temperature 3 minutes, the activation solution was made up of 0.1g / LPdCl 2 , 3g / LVC, 6g / LSnCl 2 , 10mL / L hydrochloric acid, the balance is composed of deionized...

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Abstract

The invention discloses a method for preparing a copper-zinc-iron ternary alloy chemical plating layer on the surface of aramid fiber, which comprises the following steps: modifying the surface of the aramid fiber, treating with low-concentration colloidal palladium, and chemically plating a copper-zinc-iron ternary alloy process. The beneficial effects of the present invention are: using the environment-friendly glyoxylic acid electroless plating process to realize co-deposition of copper-zinc-iron ternary alloy, the coating mass fraction is composed of copper 85%-90.5%, iron 1.0%-3.0%, zinc 0.5% %-1.5%, the balance is carbon and oxygen; the measured surface resistance of the coating is kept below 50mΩ / sq, the tape method is used to measure the bonding force between the coating and the fabric fibers, and the weight loss rate is less than 0.1%; the coating is bright and the microstructure is uniform , resistant to atmospheric corrosion, to meet the needs of electrical conductivity, electromagnetic shielding, anti-static and so on.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a method for preparing a copper-zinc-iron ternary alloy electroless coating on the surface of aramid fibers. Background technique [0002] Aramid fiber, namely "poly-p-phenylene terephthalamide", is a new type of high-tech synthetic fiber. Due to its special structure, aramid fiber material has ultra-high strength, high modulus, high temperature resistance and acid resistance. Alkali resistance, light weight and excellent flame retardancy and other excellent properties have special uses in various aspects of the national economy such as military industry, aerospace, electromechanical, construction, automobiles, and sporting goods. [0003] Carrying out different metallization treatments on the surface of aramid fiber, endowing it with conductive, electromagnetic shielding, anti-static or other special functions of metals will greatly expand the application field of aram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83D06M10/00D06M13/513D06M13/256D06M11/20D06M11/28C23C18/48C23C18/30D06M101/36
Inventor 冯立明张建刚郑培学
Owner SHANDONG JIANZHU UNIV
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