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Acrylic fiber conductive filament and chemical silvering preparation method

A conductive filament and electroless silver plating technology is applied in the field of preparation of acrylic conductive filament and its silver plating, which can solve the problems of less application, large pollution, conductive stability, etc., and achieves good fit, sterilization, deodorization, and radiation resistance. Excellent and good radiation protection effect

Inactive Publication Date: 2018-09-28
CHANGSHU XIANGYING SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of its complex production and use of organic pollution and poor conductivity stability, it is rarely used

Method used

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  • Acrylic fiber conductive filament and chemical silvering preparation method

Examples

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preparation example Construction

[0036] A kind of preparation method of electroless silver-plated conductive filament of acrylic fiber, concrete steps comprise:

[0037] 1. The untwisted acrylic filaments are elasticized and twisted. The boiling water shrinkage of the treated filaments is ≤1.0%, the twist is 114Z / m, the strength is 28CN / Tex, and the elongation is 18%. The silk is helpful to the post-processing process, reducing the fuzz or messy yarn on the reel.

[0038] 2. The yarn bobbin after elastic and twisting is then wound onto the loose bobbin. The loose bobbin strives to be completely consistent with the weight of the yarn, the overall size and shape of the bobbin, and the density is controlled at 0.22Kg / dm 3 .

[0039] 3. Place the loose yarn bobbin in a closed container for degreasing treatment in the form of two-way pressure washing.

[0040] 4. Place the loose yarn bobbin in a closed container to micro-etch and roughen the surface of the fiber in the form of two-way pressure washing, and then ...

Embodiment 1

[0046] 1. The untwisted acrylic filaments are stretched and twisted on the puller. The boiled water shrinkage of the treated filaments is ≤1.0%, the twist is 114Z / m, the strength is 28CN / Tex, and the elongation is 18%.

[0047] 2. The bobbin after elastic twisting is wound on the loose bobbin, and the density is controlled at 0.22Kg / dm 3 .

[0048] 3. Place the loose yarn bobbin in a closed container for degreasing treatment in the form of two-way pressure washing. After degreasing treatment, wash it three times with water to centrifugally dehydrate the yarn bobbin.

[0049] 4. Place the loose yarn bobbin in a closed container to micro-etch and roughen the surface of the fiber in the form of two-way pressure washing. After the treatment, wash the bobbin three times with water to centrifugally dehydrate the bobbin.

[0050] 5. Place the loose yarn bobbin in a closed container to activate the fiber under acidic conditions in the form of two-way pressure impregnation.

[0051] ...

Embodiment 2

[0055] The difference from Example 1 is:

[0056] Step 6. Place the loose yarn bobbin in a closed container to carry out Ag on the fiber surface in the form of two-way pressure impregnation. + Dipping. The yarn ratio of each component of the impregnation solution is: silver ammonium solution 25%, ethanol 6.25%, polyethylene glycol 5%, water 400% to 800%, at a temperature of 40°C and a pressure of 0.22MPa, the Ag + Uniform adsorption, diffusion and penetration from the fiber surface to the inside.

[0057] Step 7. Place the impregnated yarn bobbin in a closed container in the form of two-way pressurized impregnation at a temperature of 43°C and a pressure of 0.22MPa to achieve the formation of silver on the surface of the fiber. The yarn ratio of the components of the reduction reaction solution is: silver 25% ammonium solution, 6.25% ethanol, 5% polyethylene glycol, 250% glucose, 25% tartaric acid, 0.125% brightener, 0.125% reaction rate buffer, sodium hydroxide adjusted to ...

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Abstract

The invention discloses an acrylic fiber conductive filament and a chemical silvering preparation method. The method takes acrylic fiber filament as a matrix, and fully uses an acrylic fiber filamentbark-like surface structure and -CN electronegativity, the acrylic fiber filament is subjected to degreasing, coarsening and activation, and is subjected to pressurization, heating and dipping in an enclosed alkaline silver ammonium solution for chemical plating, and a white silver simple substance is formed at the surface of acrylic fiber, so that the filament conductive processing is carried out. The prepared acrylic fiber conductive filament has the advantages of easy control, good conductivity, strong fiber affinity capability, lasting conductive characteristic, excellent sterilization deodorizing shielding property, and good acid and alkali resistance.

Description

technical field [0001] The invention relates to the field of functional fiber manufacturing, in particular to an acrylic conductive filament and a method for preparing the same by silver plating. Background technique [0002] In order to prevent static electricity and electromagnetic wave interference, people have developed various antistatic products, electromagnetic shielding materials and conductive fibers since the middle of the 20th century. The antistatic effect of conductive fiber is remarkable and long-lasting, and it is not affected by the humidity of the environment. The fiber with excellent conductivity is less than 10Ω·cm. At room temperature, the half-life of the charge on the surface of the fiber is very short. The conductive fabric made of fiber has excellent functions such as electric conduction, heat conduction, shielding, and electromagnetic wave absorption. It is widely used in conductive mesh and conductive work clothes in the electronics and electric pow...

Claims

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Application Information

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IPC IPC(8): D06M11/83C23C18/16C23C18/20C23C18/44D06M101/28
CPCC23C18/1639C23C18/2053C23C18/44D06M11/83D06M16/00D06M2101/28D06M2200/25D06M2200/50
Inventor 陶文祥郭宗镭
Owner CHANGSHU XIANGYING SPECIAL FIBER
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