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Preparation method of flame retardant conductive fiber

A conductive fiber and flame-retardant technology, which is applied in the field of radiation-proof fiber, conductive, and flame-retardant preparation, can solve the problems of not being widely used in the field of personal protection, single function, and inability to ensure the uniform dispersion of stainless steel fibers, etc.

Active Publication Date: 2013-10-02
无锡中斯盾科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Flame-retardant clothing with anti-static requirements mostly use 5-8% stainless steel fiber and ordinary fiber blended yarn, arranged in a pure cotton base cloth at a certain distance, but in terms of the flame retardancy of the yarn, it is difficult to meet the requirements burning demand
[0004] Most of the existing anti-static technologies use conductive materials with a single function: one is high polymer conductive filaments, usually 10% of the resistance 5 -10 8 Between Ω, its structure is core-sheath type, such as carbon-coated polymer or polymer-coated carbon, or coated with metal particles on the surface of the polymer, but these materials are not flame retardant
The second is chemically complexed copper and nickel conductive fibers and yarns. The technical defect is that the metal particles on the surface of fibers or yarns are easily oxidized in air, humidity, and salt spray environments, and the conductive time is short, and they are not flame retardant.
The third is the blended yarn of stainless steel fiber and ordinary fiber. The technical defect is that the existing spinning process cannot guarantee the uniform dispersion of a small amount of stainless steel fiber (about 5-8%) in the blending process, thus affecting the anti-corrosion effect. Static performance
These materials are expensive and cannot be widely used in the field of personal protection

Method used

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  • Preparation method of flame retardant conductive fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The specific preparation steps of this flame-retardant conductive fiber are as follows:

[0017] (1) Pretreatment: remove impurities on the surface of pre-oxidized fiber raw materials;

[0018] (2) Conductive treatment: Soak the pretreated pre-oxidized fiber in the conductive liquid, raise the temperature to 90°C, and soak for 2 hours until the fiber is black and bright, and the color is uniform; the composition of the conductive liquid is: sulfuric acid pentahydrate Copper 100g / L, sodium thiosulfate 150g / L, scandium 0.3g / L, yttrium 0.5g / L, the solvent of the conductive liquid is distilled water; soak 10g of fiber per liter of conductive liquid;

[0019] (3) Post-treatment: After soaking the fiber in the conductive liquid, the fiber is cleaned, dried, loosened and packaged.

Embodiment 2

[0021] The specific preparation steps of this flame-retardant conductive fiber are as follows:

[0022] (1) Pretreatment: remove impurities on the surface of the original acrylic fiber;

[0023] (2) Conductive treatment: Soak the pretreated acrylic fiber in conductive liquid, raise the temperature to 100°C, soak for 1 hour, until the fiber color is black and bright, and the chroma is uniform; the composition of the conductive liquid is: pentahydrate Copper sulfate 150g / L, sodium thiosulfate 200g / L, scandium 0.5g / L, yttrium 0.5g / L, the solvent of the conductive liquid is distilled water; soak 30g of fiber per liter of conductive liquid;

[0024] (3) Post-treatment: After soaking the fiber in the conductive liquid, the fiber is cleaned, dried, loosened and packaged.

Embodiment 3

[0026] The specific preparation steps of this flame-retardant conductive fiber are as follows:

[0027] (1) Pretreatment: remove impurities on the surface of pre-oxidized fiber raw materials;

[0028] (2) Conductive treatment: Soak the pre-treated pre-oxidized fiber in a conductive liquid, raise the temperature to 100°C, and soak for 1 hour until the fiber color is black and bright, and the chroma is uniform; the composition of the conductive liquid is: sulfuric acid pentahydrate Copper 100~200g / L, sodium thiosulfate 250g / L, scandium 0.5g / L, yttrium 0.7g / L, the solvent of the conductive liquid is distilled water; soak 50g of fiber per liter of conductive liquid;

[0029] (3) Post-treatment: After soaking the fiber in the conductive liquid, the fiber is cleaned, dried, loosened and packaged.

[0030] The physical and chemical properties of the modified preoxidized fiber prepared in Example 1 were tested, and the product properties are shown in Table 1.

[0031] Table 1

[00...

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Abstract

A preparation method of a flame retardant conductive fiber comprises the specific steps of: immersing pretreated fiber, yarn or tows in a conductive liquid; heating up to 90-100 DEG C; and soaking for 1-2 h until the fiber turns uniform bright black. The conductive liquid comprises 100-200g / L blue copperas, 150-250 g / L sodium thiosulfate, 0.3-0.5g / L scandium and 0.5-0.7g / L yttrium. The method modifies a same base fiber to obtain functional fiber with flame retardance and electrical conductivity, and the price of the fiber is significantly lower than that of a product with similar performance.

Description

technical field [0001] The invention relates to the technical field of special fibers, in particular to a method for preparing flame-retardant, conductive and radiation-proof fibers. Background technique [0002] Most of the existing flame retardant technologies use ordinary textile finishing technology, that is, coating flame retardants on the surface of pure cotton cloth. However, it can still burn when it encounters an open flame, and it will smolder after leaving the open flame, and the fabric will be damaged after carbonization. [0003] Flame-retardant clothing with anti-static requirements mostly use 5-8% stainless steel fiber and ordinary fiber blended yarn, arranged in a pure cotton base cloth at a certain distance, but in terms of the flame retardancy of the yarn, it is difficult to meet the requirements burning demand. [0004] Most of the existing anti-static technologies use conductive materials with a single function: one is high polymer conductive filaments,...

Claims

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Application Information

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IPC IPC(8): D06M11/56D06M11/83D06M101/28D06M101/22
Inventor 郭立新陆昕
Owner 无锡中斯盾科技有限公司
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