Preparation method of temperature-responsive self-repairing super-hydrophobic fabric

A temperature-responsive, super-hydrophobic technology, applied in textiles and papermaking, liquid-repellent fibers, fiber treatment, etc., can solve the problems of super-hydrophobic fabric stability, poor washing and abrasion resistance, and save production input costs , short process flow and convenient operation

Active Publication Date: 2019-04-05
厦门市北顶纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the stability, washability and abrasion resistance of the superhydrophobic fabrics prepared in the prior art are poor, and it is urgent to find a preparation method that can prepare superhydrophobic fabrics with good stability, washability and abrasion resistance.

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 temperature-responsive self-repairing super-hydrophobic fabric
  • Preparation method of temperature-responsive self-repairing super-hydrophobic fabric
  • Preparation method of temperature-responsive self-repairing super-hydrophobic fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0036] (1) At room temperature, take 0.12 parts of dopamine hydrochloride in a beaker, add 0.04 parts of tris(hydroxymethyl)aminomethane, and then add deionized water to a total weight of 100 parts, and stir with a magnetic stirrer for 3 hours. Under stirring, soak the fabric in the above solution at a bath ratio of 1:100 for 20 minutes, take it out, rinse the surface of the fabric with a large amount of deionized water until it is white or light yellow, and dry it in an oven at 60°C for 30 minutes.

[0037] (2) Dissolve 4 parts of polycarbonate in 100 parts of dichloromethane, soak the above fabric in the solution for 8 minutes under stirring, take it out, put it in the air for 2 minutes, and then soak it in 130 parts of p-xylene for 1 minute and concentration 35 parts of 2g / L sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally dried in an oven at 60°C for 30 minutes.

[0038] (3) Take 2 parts of octadecylamine in a beaker, add ab...

Embodiment 2

[0045] (1) At room temperature, take 0.12 parts of dopamine hydrochloride in a beaker, add 0.06 parts of tris(hydroxymethyl)aminomethane, and then add deionized water to a total weight of 100 parts, and stir with a magnetic stirrer for 3 hours. Under stirring, the fabric was immersed in the above solution at a bath ratio of 1:100 for 20 minutes, taken out, rinsed with a large amount of deionized water until the surface of the fabric was white or light yellow, and dried in an oven at 60°C for 30 minutes.

[0046] (2) Dissolve 4 parts of polycarbonate in 100 parts of dichloromethane, soak the above fabric in the solution for 8 minutes under stirring, take it out, put it in the air for 2 minutes, and then soak it in 130 parts of p-xylene for 1 minute and concentration 35 parts of 2g / L sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally dried in an oven at 60°C for 30 minutes.

[0047] (3) Take 2 parts of octadecylamine in a beaker, ad...

Embodiment 3

[0054] (1) At room temperature, take 0.12 parts of dopamine hydrochloride in a beaker, add 0.06 parts of tris(hydroxymethyl)aminomethane, and then add deionized water to a total weight of 100 parts, and stir with a magnetic stirrer for 3 hours. Under stirring, the fabric was immersed in the above solution at a bath ratio of 1:100 for 20 minutes, taken out, rinsed with a large amount of deionized water until the surface of the fabric was white or light yellow, and dried in an oven at 60°C for 30 minutes.

[0055] (2) Dissolve 6 parts of polycarbonate in 100 parts of dichloromethane, soak the above fabric in the solution for 8 minutes under stirring, take it out, put it in the air for 2 minutes, and then soak it in 130 parts of p-xylene for 1 minute and concentration 35 parts of 2g / L sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally dried in an oven at 60°C for 30 minutes.

[0056] (3) Take 2 parts of octadecylamine in a beaker, ad...

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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PUM

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Abstract

The invention discloses a preparation method of a temperature-responsive self-repairing super-hydrophobic fabric, and belongs to the field of super-hydrophobic fabrics. In the method, dopamine hydrochloride and tris(hydroxymethyl)aminomethane are adopted to prepare a bionic polydopamine solution, the high adhesion, namely, the role of double-faced adhesive tape of the polydopamine is utilized to make polycarbonate firmly adhere to the fabric surface, a good rough structure is constructed on fabric cotton cloth as polycarbonate can swell in paraxylene, then low-surface-energy substances octadecylamine and 1-dodecanethiol are adopted to modify the fabric surface, and the temperature-responsive self-repairing super-hydrophobic fabric is obtained. Tests show that the fabric still can meet thesuper-hydrophobicity requirement after being subjected to 100 times of fabrication and 30 times of washing, the fabric has no super-hydrophobic property when wetted by water, but the super-hydrophobicproperty of the fabric can be restored after the fabric is dried for 80 min at 60 DEG C, and thus conversion between a super-hydrophobic fabric and a non-super-hydrophobic fabric is realized.

Description

technical field [0001] The invention relates to a method for preparing a temperature-responsive self-repairing superhydrophobic fabric, belonging to the field of superhydrophobic fabrics. Background technique [0002] Inspired by the lotus leaf effect, researchers have conducted in-depth and extensive research on superhydrophobic fabrics. The superhydrophobic fabric satisfies the condition that the static contact angle (Static contact angle) of the fabric and water is greater than 150°, and the rolling angle is less than 10°, such as the common rose petals, which are laid flat and dripped with a drop of water. The static contact angle of water is greater than 150°, but if the surface is turned 180°, the water droplets on the surface still cannot fall off, so roses do not have super-hydrophobic properties, so the fabric must meet the above two conditions to have super-hydrophobic properties. [0003] Superhydrophobic fabrics have a wide range of applications because of their...

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): D06M13/252D06M13/328D06M15/513D06M15/61
CPCD06M13/252D06M13/328D06M15/513D06M15/61D06M2200/12
Inventor 张丹郑果林武玉和
Owner 厦门市北顶纺织科技有限公司
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