Preparation method of in-situ polymerization low-resistance stable-conduction hydrophobic fabric

A technology of stable conduction and in-situ polymerization, used in animal fibers, textiles and papermaking, and liquid-repellent fibers, etc., can solve the problems of uneven distribution of conductive organic polymers, complex processes, and large resistance values. The effect of increasing surface and internal adsorption, enhancing interaction, and improving conductivity

Pending Publication Date: 2020-12-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The direct coating method is to directly coat the prepared conductive polymer solution on the fabric. This method is simple and easy, but the conductive organic polymer is mainly concentrated on the surface of the fabric, and it is difficult to enter the yarn or fiber inside the fabric, resulting in The uneven distribution of conductive organic polymers affects its conductive effect and stable signal transmission
[0010] Using conductive polymer solution, adding p-toluenesulfonic acid in-situ polymerization method, the composite fabric resistance of the prepared composite fabric is 1.82kΩ, the resistance value is too large, and the excessive resistance value will reduce the current passing and affect the conductive effect
[0011] The vapor phase deposition method is to first immerse the non-conductive fabric in the mixed solution of the oxidant and the dopant, then place the non-conductive fabric and the conductive polymer solution together in the gas phase chamber, and move it to a low temperature environment after vacuuming to prepare a composite conductive fabric. The process of this preparation method is relatively complicated, and it is only suitable for the completion of laboratory conditions.

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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  • Preparation method of in-situ polymerization low-resistance stable-conduction hydrophobic fabric
  • Preparation method of in-situ polymerization low-resistance stable-conduction hydrophobic fabric
  • Preparation method of in-situ polymerization low-resistance stable-conduction hydrophobic fabric

Examples

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Effect test

Embodiment 1

[0051] Example 1: After cleaning the silk woven fabric with absolute ethanol for 0.5h, treat it with 0.1mol / L pyrrole solution for 2h, then add 0.05mol / L ferric chloride to the fabric-conductive polymer solution complex Solution, under the condition of 3 ℃, low temperature polymerization reaction 2h. Wash the treated fabric with deionized water several times, and dry it under vacuum at 50°C for 10 minutes to obtain in-situ polymerized low-resistance stable conductive hydrophobic fabric (see Figure 1-Figure 3 ). The electrical resistance of the fabric is 606.7Ω, the thickness is 0.214mm, the breaking strength is 389.3N, the breaking elongation is 23.2%, the fiber diameter is 10.71μm, the pore size is 6.43μm, and the surface contact angle is 135.5°.

Embodiment 2

[0052] Embodiment 2: After the silk woven fabric is cleaned with absolute ethanol for 4 h, it is treated with 1 mol / L pyrrole solution for 5 h, and then in the fabric-conductive polymer solution complex, 0.05 mol / L ammonium persulfate solution is added, Under the condition of 5 ℃, the low-temperature polymerization reaction was carried out for 4 hours. Wash the treated fabric with deionized water several times, and dry it under vacuum at 60°C for 30 minutes to obtain an in-situ polymerized low-resistance stable conductive hydrophobic fabric (see Figure 4-Figure 6 ). The electrical resistance of the fabric is 11.07kΩ, the thickness is 0.221mm, the breaking strength is 427.1N, the breaking elongation is 24.2%, the fiber diameter is 12.64μm, the pore size is 8.0μm, and the surface contact angle is 129.3°.

Embodiment 3

[0053] Example 3: After the nylon warp knitted fabric is cleaned by hot washing for 0.5 h, it is treated with 0.7 mol / L aniline solution for 5 h, and then added to the fabric-conductive polymer solution complex with 0.3 mol / L aniline solution. Ammonium sulfate solution, under the condition of 5°C, low-temperature polymerization reaction for 2h. Wash the treated fabric several times with deionized water, and dry it under vacuum at 50°C for 30 minutes to obtain an in-situ polymerized low-resistance stable conductive hydrophobic fabric (see Figure 7-Figure 9 ). The electrical resistance of the fabric is 0.94kΩ, the thickness is 0.38mm, the breaking strength is 312.27N, the breaking elongation is 90.57%, and the surface contact angle is 116.1°.

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Abstract

The invention discloses a preparation method of an in-situ polymerization low-resistance stable-conduction hydrophobic fabric. The preparation method comprises the following steps: pretreating the fabric by adopting a physical treatment method or a chemical treatment method, and precisely controlling the concentration of an aniline or pyrrole polymer solution, the concentration of ferric trichloride or ammonium persulfate and the temperature and time of low-temperature polymerization reaction; and performing cleaning with deionized water for multiple times of to remove residual reagents, and controlling the temperature and time of vacuum drying to prepare the in-situ polymerization low-resistance stable conduction hydrophobic fabric. The in-situ polymerization low-resistance stable-conduction hydrophobic fabric has micron-scale fiber diameter and pore diameter, controllable fiber form surface morphology, low resistance and good elastic elongation and conductivity, the conductive effecthas lasting stability, heat conduction and distribution on the surface and inside of the fabric are uniform, and a certain hydrophobic effect is achieved. The fabric prepared by the method has potential application value and prospect in the flexible wearable field and the nerve and myocardial repair tissue engineering field.

Description

technical field [0001] The invention relates to a preparation method of an intelligent fabric, in particular to a preparation method of an in-situ polymerized low-resistance stable conduction hydrophobic fabric. Background technique [0002] With the advent of the era of intelligence, all industries are actively preparing for the development of intelligence. Similarly, under this upsurge, the textile industry is gradually increasing its attention to the development of smart textiles, making smart textiles usher in opportunities for rapid growth. To be precise, people's research on smart textiles can be traced back to the 1960s and 1970s. The initial smart textiles simply embedded some electronic components on the textiles as the carrier, and the application space was limited. Coupled with the technology at that time Due to the limited level, smart textiles did not become a research hotspot at that time. However, with the continuous advancement of science and technology, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M15/37D06M101/10D06M101/34
CPCD06M15/61D06M15/37D06M2200/12D06M2101/10D06M2101/34
Inventor 冯建永陈伟钢莫锦桦
Owner ZHEJIANG SCI-TECH UNIV
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