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Preparation method of conductive cotton fabric

A technology for conducting cotton and cotton fabrics, which is applied to plant fibers, textiles, papermaking, fiber processing, etc., can solve the problems of poor solubility, long process, and many process steps, and achieve the effect of simple preparation method and good conductivity.

Inactive Publication Date: 2018-11-23
AOYANG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor solubility of polypyrrole in ordinary solvents, the requirements for equipment and spinning technology are very strict, so the preparation method of polypyrrole conductive fabric mainly adopts in-situ polymerization method, but the in-situ polymerization of polypyrrole to cotton requires process steps More, the process is longer, and it is not easy to process evenly. Moreover, the conductivity of polypyrrole cotton fabrics is still not ideal.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The invention discloses a preparation method of conductive cotton fabric, comprising:

[0019] (1) Pretreatment: Cut the cotton fabric into several pieces of the required size, place them in a sodium hydroxide solution with a mass concentration of 10-20g / L, the bath ratio is 1:15-25, and the water bath temperature is 90-100°C , treated for 15 to 25 minutes, washed to neutral, and dried to obtain pretreated cotton fabrics;

[0020] (2) Add the above-mentioned pretreated cotton fabric into the pyrrole solution and ultrasonically impregnate it for 1-2 hours, then add the iron salt solution, the bath ratio is 1:30-50, the temperature of the water bath is 30-40°C, and treat for 30-60 minutes to obtain Polypyrrole-cotton composite fabric;

[0021] (3) Soak the polypyrrole-cotton composite fabric in silver nitrate solution for 10-30 minutes, then add ammonium persulfate solution, polymerize at room temperature for 2-10 hours, wash and dry to obtain conductive cotton fabric. ...

Embodiment 1

[0027] (1) Pretreatment: Cut the cotton fabric into several pieces of the required size, place them in a sodium hydroxide solution with a mass concentration of 10g / L, the bath ratio is 1:15, the water bath temperature is 90°C, treat for 15min, and wash until Neutral, drying, to obtain the pretreated cotton fabric;

[0028] (2) Add the above-mentioned pretreated cotton fabric into 0.1mol / L pyrrole solution for ultrasonic immersion for 1h, then add 0.1mol / L ferric chloride solution, the bath ratio is 1:30, the water bath temperature is 30°C, and treat for 30min , to obtain polypyrrole-cotton composite fabric;

[0029] (3) Soak the above-mentioned polypyrrole-cotton composite fabric in a silver nitrate solution with a concentration of 0.01g / mL for 10min, then add an ammonium persulfate solution with a concentration of 0.3mol / L, polymerize for 2h at room temperature, wash and dry , to obtain conductive cotton fabric.

Embodiment 2

[0031] (1) Pretreatment: Cut the cotton fabric into several pieces of the required size, place them in a sodium hydroxide solution with a mass concentration of 15g / L, the bath ratio is 1:20, the temperature of the water bath is 95°C, treat for 20min, and wash until Neutral, drying, to obtain the pretreated cotton fabric;

[0032] (2) Add the above-mentioned pretreated cotton fabric into 0.2mol / L pyrrole solution and ultrasonically impregnate it for 1.5h, then add 0.2mol / L ferric chloride solution, the bath ratio is 1:40, and the water bath temperature is 35°C. 45min, obtain polypyrrole-cotton composite fabric;

[0033] (3) Soak the above-mentioned polypyrrole-cotton composite fabric in a silver nitrate solution with a concentration of 0.05g / mL for 20min, then add a solution of ammonium persulfate with a concentration of 0.5mol / L, polymerize for 6h at room temperature, wash and dry , to obtain conductive cotton fabric.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of a conductive cotton fabric. The preparation method comprises the following steps of (1) pretreatment: shearing a cotton fabric into a plurality of pieces in required size, putting the pieces in a sodium hydroxide solution with the mass concentration being 10 to 20g / L, performing treatment for 15 to 25 minutes under the conditions that the bath ratiois 1 to (15 to 25) and the water bath temperature is 90 to 100 DEG C, washing the pieces to be neutral, and performing drying to obtain a pretreated cotton fabric; (2) adding the pretreated cotton fabric in a pyrrole solution for ultrasonic impregnation for 1 to 2 hours, then adding a ferric salt solution, and performing treatment for 30 to 60 minutes under the conditions that the bath ratio is 1to (30 to 50) and the water bath temperature is 30 to 40 DEG C to obtain a polypyrrole-cotton composite fabric; and (3) soaking the polypyrrole-cotton composite fabric with a silver nitrate solution for 10 to 30 minutes, then adding an ammonium persulfate solution, performing polymerization reaction for 2 to 10 hours under the room temperature condition, and performing washing and airing to obtainthe conductive cotton fabric. The preparation method provided by the invention is simple without complex reaction and high temperature; and the prepared conductive cotton fabric has relatively good conductivity.

Description

technical field [0001] The invention relates to the technical field of textile finishing, in particular to a preparation method of conductive cotton fabric. Background technique [0002] Conductive fabric is a functional fabric with conductive, antistatic and anti-electromagnetic radiation functions, and can be used to prepare high-tech products such as sensors, smart clothing and foldable batteries. Each field plays an important role. [0003] Cotton-based organic composite conductive fabrics are one of the most promising conductive fabrics due to their light weight, readily available raw materials, low price, good stability, and adjustable conductivity. Polypyrrole has the advantages of good air stability, easy electrochemical polymerization to form a film, and non-toxicity. It is a conductive polymer material with broad application prospects. Due to the poor solubility of polypyrrole in ordinary solvents, the requirements for equipment and spinning technology are very s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M11/65D06M11/38D06M101/06
CPCD06M11/38D06M11/65D06M15/37D06M2101/06
Inventor 沈学如
Owner AOYANG GRP CO LTD