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Method for making material conductive, method for manufacturing conductive material, and conductive material

By impregnating conductive polymers with sulfonic acid groups and/or carboxyl groups in liquids at 30 to 130°C, the problem in the existing technology of obtaining antistatic and water-resistant materials under low-cost and low-humidity conditions is solved. problem, achieving efficient preparation of conductive materials without affecting the performance of the fiber.

Active Publication Date: 2013-05-15
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems as follows: it is impossible to obtain electrical conductivity to the extent that it is sufficient to impart antistatic properties only to fibers; the electrical conductivity of the surfactant changes due to humidity, so the antistatic effect is unstable; The effect of hydrophobic processing, etc.
However, there are problems such as insufficient water resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0066] Hereinafter, examples will be given to specifically illustrate the present invention, but the present invention is not limited to these examples.

[0067]

[0068] The volume resistance value of the polymer was measured by the 4-terminal 4-probe method using Loresta-EP MCP-T360 (manufactured by DIA Instruments).

[0069]

[0070] After the conductive material was dried at 70°C for 10 minutes, the surface resistance of the conductive material was measured by the 2-probe method using HirestaIP-MC PHT4560 manufactured by DIA Instruments. (Unit: Ω).

[0071]

[0072] After drying the conductive material at 70°C for 10 minutes, the frictional charging voltage of the conductive material was measured according to the frictional charging voltage measuring method described in JIS L 1094. The measurement of the frictional voltage was carried out using a rotary static tester (Rotary Static Tester, manufactured by Xingya Trading Co., Ltd.) under the conditions of a cylinder rotation numb...

manufacture example 1

[0095] Manufacturing of conductive polymer (B-1):

[0096] 100 mmol of 2-aminoanisole-4-sulfonic acid was dissolved in a 4 mol / L triethylamine aqueous solution at 25°C, and an aqueous solution of 100 mmol ammonium peroxodisulfate was added dropwise to the solution while stirring the solution. After the dropwise addition, it was further stirred at 25°C for 12 hours. The reaction product was filtered, washed, and dried to obtain 15 g of a conductive polymer (B-1) powder. The volume resistance value of the conductive polymer (B-1) was 9.0 Ω·cm.

[0097] [Determination of molecular weight]

[0098] The molecular weight distribution and molecular weight of the conductive polymer (B) are measured.

[0099] Molecular weight distribution and molecular weight measurement are GPC measurement (polystyrene sulfonic acid conversion) using a GPC column for aqueous solution. The column is used by connecting two types of columns for aqueous solutions. In addition, the eluent was a solution of 0.0...

Embodiment 1～26、 comparative example 1～3

[0108] The conductive polymer (B) shown in Table 1 and Table 2 was added to 100 ml of pure water, and the acid described in the additive column was further added to make the system have the pH shown in Table 1 and Table 2. In the resulting conductive polymer (B) aqueous solution, the substrate (A) shown in Table 1 and Table 2 was immersed, and the dipping time shown in Table 1 and Table 2 was performed at the dipping temperature shown in Table 1 and Table 2. Stirring was performed to obtain conductive materials 1-29.

[0109] The conductive materials 1-29 were evaluated. Table 4 and Table 5 show the results.

[0110] Table 1

[0111] Example Comparative example Conductor Substrate (A) parts by mass Conductive polymer (B) parts by mass Dipping temperature (℃) Immersion time (min) PH before immersion additive Example 1 1 Wool fiber 100 B-1 0.01 70 45 1.5 sulfuric acid Example 2 2 Wool fiber 100 B-1 0.05 70 45 1.5 sulfuric acid Example 3 3 Wool fiber 100 B-1 ...

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Abstract

Disclosed is a method for giving electric conductivity to a material, by which a conductive material having excellent water resistance and sufficient antistatic properties even at a low temperature and a low humidity can be easily obtained at low cost. In the method, electric conductivity is given to a base material (A) having a nitrogen-containing functional group by soaking the base material (A) in a liquid containing a conductive polymer (B) having at least one kind of sulfonic group and carboxyl group while holding the liquid at a temperature in the range of from 30 to 130°C. A conductive material to be obtained by such a method is also disclosed.

Description

technical field [0001] The present invention relates to a method for imparting conductivity, a method for producing a conductive material, and a conductive material obtained by the method. [0002] this application claims priority based on Japanese Patent Application No. 2006-288542 for which it applied to Japan on October 24, 2006, and uses the content here. Background technique [0003] Since the fiber is electrically insulating, static electricity generated on the fiber through contact, friction, etc. is not easy to leak. This causes various problems such as entanglement of clothes, adhesion of dust (dirt), erroneous operation of electronic equipment, and sparks caused by discharge of generated static electricity from the human body. [0004] As a method of imparting antistatic properties to fibers, for example, the following methods are known. [0005] (1) A method of coating fibers with an antistatic oil agent. [0006] (2) A method in which an antistatic agent is mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/37C08J7/04C09K3/16D06M15/63
CPCD06M15/61D06M2200/00C08G2261/3243C08L65/00C08G2261/1452C08G2261/3223H01B1/127D06M15/356D06M15/63H01B1/14C08G2261/1426D06M13/256D06M13/217D06M11/58
Owner MITSUBISHI CHEM CORP
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