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A kind of preparation method of self-healing superhydrophobic fabric

A super-hydrophobic, self-healing technology, applied in textiles and papermaking, liquid repellent fibers, fiber processing, etc., can solve the problems of super-hydrophobic fabric stability, poor washability and abrasion resistance, and save production input costs. , The effect of short process flow and convenient operation

Active Publication Date: 2020-03-06
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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  • A kind of preparation method of self-healing superhydrophobic fabric
  • A kind of preparation method of self-healing superhydrophobic fabric
  • A kind of preparation method of self-healing superhydrophobic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] ⑴ At room temperature, take 0.12 part of dopamine hydrochloride in a beaker, add 0.04 part of tris(hydroxymethyl)aminomethane, then add deionized water to a total weight of 100 parts, and stir for 3 hours with a magnetic stirrer. Under stirring, immerse 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 to white or light yellow with a large amount of deionized water, and dry it in an oven at 60°C for 30 minutes.

[0037] ⑵ Dissolve 4 parts of polycarbonate in 100 parts of dichloromethane, immerse the above fabric in the solution for 8 minutes under stirring, take it out, place in air for 2 minutes, and then immerse in 130 parts of p-xylene for 1 minute and concentration It is placed in a 2g / L 35 parts sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally placed in an oven at 60°C for 30 minutes.

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

Embodiment 2

[0045] ⑴ At room temperature, take 0.12 part of dopamine hydrochloride in a beaker, add 0.06 part of tris(hydroxymethyl)aminomethane, then add deionized water to a total weight of 100 parts, and stir for 3 hours with a magnetic stirrer. Under stirring, the fabric was immersed in the above solution at a bath ratio of 1:100 for 20 minutes, taken out, washed the surface of the fabric to white or light yellow with a large amount of deionized water, and dried in an oven at 60°C for 30 minutes.

[0046] ⑵ Dissolve 4 parts of polycarbonate in 100 parts of dichloromethane, immerse the above fabric in the solution for 8 minutes under stirring, take it out, place in air for 2 minutes, and then immerse in 130 parts of p-xylene for 1 minute and concentration It is placed in a 2g / L 35 parts sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally placed in an oven at 60°C for 30 minutes.

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

Embodiment 3

[0054] ⑴ At room temperature, take 0.12 part of dopamine hydrochloride in a beaker, add 0.06 part of tris(hydroxymethyl)aminomethane, then add deionized water to a total weight of 100 parts, and stir for 3 hours with a magnetic stirrer. Under stirring, the fabric was immersed in the above solution at a bath ratio of 1:100 for 20 minutes, taken out, washed the surface of the fabric to white or light yellow with a large amount of deionized water, and dried in an oven at 60°C for 30 minutes.

[0055] ⑵ Dissolve 6 parts of polycarbonate in 100 parts of dichloromethane, immerse the above fabric in the solution for 8 minutes under stirring, take it out, place in the air for 2 minutes, and then immerse in 130 parts of p-xylene for 1 minute and concentration It is placed in a 2g / L 35 parts sodium bicarbonate solution for 5 minutes, placed at room temperature for 20 minutes, and finally placed in an oven at 60°C for 30 minutes.

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

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 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 super-hydrophobic fabric satisfies the condition that the static contact angle between the fabric and water is greater than 150° and the rolling angle is less than 10°. For example, the common rose petals are laid flat and a drop of water is dropped on the surface. The static contact angle of water is greater than 150°, but when the surface is turned 180°, the water droplets on the surface still cannot fall off, so the rose does not have superhydrophobic properties, so the fabric must meet the above two conditions to have superhydrophobic properties. [0003] Super-hydrophobic fabrics have a wide range of applications due to their excellent 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 Patents(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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