Method for preparing coductive fiber and its product

A technology of conductive fiber and matrix fiber, which is applied in the direction of fiber type, fiber treatment, plant fiber, etc., and can solve the problems of large differences in tensile strength and friction characteristics of synthetic fibers, field limitations, and large fiber ratio.

Inactive Publication Date: 2006-03-22
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] Among them, the post-processing method includes: ①Using adhesive to coat and adhere the conductive component on the surface of the fiber, but the conductive component prepared by this method is simply covered on the surface of the fiber in the form of a "panel" by the adhesive. After the agent encounters the solution or other factors, it will cause the entire conductive component to fall off, so this method has certain limitations; ②Use vacuum spraying or electroplating to deposit metal powder on the surface of the fiber to endow the fiber with conductivity (see PCT Patent WO 99 / 15725, preparation of fibers containing intrinsically conductive polymers, Kinlen, Patrick, J; Ding Yiwei; Fisher, W.Keith; Preparation of fibers containing intrinsically conductive polymers [P].WO 99 / 15725, 1999) passed The conductive fiber prepared by this method is metal because of its conductive component, so the specific gravity of the fiber is relatively large, and the tensile strength and friction characteristics are greatly different from those of synthetic fibers. It is greatly restricted in the largest field of conductive fiber application in textiles and clothing.

Method used

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Examples

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Effect test

preparation example Construction

[0024] A kind of preparation method of conductive fiber designed by the present invention comprises the following steps:

[0025] 1. Matrix fiber pretreatment: use acetone, ethanol and distilled water to pretreat the matrix fiber in turn at room temperature, so as to remove the oil and impurities on its surface; the matrix fiber refers to polyester, viscose or wool But the matrix fiber of the present invention can be various synthetic fibers commonly used or natural fiber, preferably any one in polyester fiber, viscose fiber or wool fiber.

[0026] 2. Prepare the fiber treatment liquid: the weight percentage formula of the treatment liquid is:

[0027] Oxidant 2% to 32%, preferably 6 to 16%;

[0028] Dopant 0.1-7%, preferably 0.1-1%;

[0029] Solvent balance,

[0030] The sum of the components is 100%; the oxidizing agent refers to one of iron trichloride and ammonium persulfate; the dopant refers to one of hexadecyltrimethylammonium bromide and hydrochloric acid, The solv...

Embodiment 1

[0036] 1. Matrix fiber pretreatment: the matrix fiber is made of polyester, and the matrix fiber is washed successively with acetone, ethanol and distilled water to remove oil and impurities on its surface;

[0037] 2. Configure the treatment liquid: configure the treatment liquid according to the following weight percentage formula:

[0038] Ferric chloride 8%,

[0039] Cetyltrimethylammonium Bromide 0.1%,

[0040] Distilled water 91.9%;

[0041] After the treatment solution is prepared, put the matrix fiber into it and soak for 30 minutes, then take it out and let it stand;

[0042] 3. To manufacture conductive fibers, use the pyrrole monomer solution as the conductive coating solution, and coat the conductive coating solution evenly and continuously on the surface of the polyester fiber at a speed of 5m / min on a continuous coating machine; then wash with hot water at 50°C to remove the residue The surface etching-coated polyester conductive fiber of the present invention...

Embodiment 2

[0045] 1. Matrix fiber pretreatment, same as embodiment 1.

[0046] 2. Configure the treatment liquid: configure the treatment liquid according to the following weight percentage formula:

[0047] Ferric chloride 8%,

[0048] Cetyltrimethylammonium Bromide 0.4%,

[0049] Distilled water 91.6%; Remaining with embodiment 1;

[0050] 3. To manufacture conductive fibers, the coating speed on a continuous coating machine is 1m / min, and washed with hot water at 90°C, the remainder is the same as in Example 1.

[0051] After measurement, the volume specific resistance of the obtained conductive fiber was 9.25×10 2 Ω.cm.

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Abstract

The present invention relates to conductive fiber preparing process and product. The preparation process includes the following steps: 1. pre-treating base fiber of polyester, viscose or wool successively with acetone, ethanol and distilled water under room temperature condition; 2. compounding fiber treating liquid with oxidant ferric trichloride or ammonium persulfate 2-32 wt%, dopant ammonium cetyl trimethyl bromide or hydrochloric acid 0.1-7 wt% and distilled water; and soaking the base fiber inside the fiber treating liquid for 30 min; and 3. making conductive fiber via coating conducting liquid of aniline, pyrrole or thiophene onto the base fiber inside a continuous coating machine of 1-10 m / min speed, washing with hot water at 50-90 deg.c and drying with hot blast at 60 deg.c to obtain the conductive fiber.

Description

technical field [0001] The present invention relates to a preparation method of conductive fiber and its products, specifically a preparation method of surface etching-coating type conductive fiber and the conductive fiber prepared by the method. The international patent main classification number is intended to be Int.Cl 7 D01F 1 / 00. Background technique [0002] Conductive fiber is one of the important functional polymer materials. Although its development history is very short, great progress has been made in theoretical research and application development. The rapid development of polymer materials is widely replacing traditional materials and entering various fields of production and life. However, because traditional polymer materials are insulating materials, there are deficiencies such as static electricity accumulation and electromagnetic wave interference during use. The successful development of conductive fibers can solve the above problems. [0003] The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/325D06M13/35D06M101/06D06M101/32
Inventor 肖长发王永跃安树林贾广霞
Owner TIANJIN POLYTECHNIC UNIV
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