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Fabrication of superhydrophobic textiles based on dopamine-assisted thiol-ene click chemistry

A dopamine and super-hydrophobic technology, applied in the field of textiles, can solve problems such as time-consuming, expensive, and environmental pollution, and achieve good hydrophobicity and roughness.

Active Publication Date: 2022-03-11
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, some super-hydrophobic surfaces are relatively fragile, not stable enough, and are easily affected by the external environment, so that they lose their super-hydrophobic properties, and there are defects such as high cost, polluting the environment, and long time-consuming in the manufacturing process.

Method used

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  • Fabrication of superhydrophobic textiles based on dopamine-assisted thiol-ene click chemistry
  • Fabrication of superhydrophobic textiles based on dopamine-assisted thiol-ene click chemistry
  • Fabrication of superhydrophobic textiles based on dopamine-assisted thiol-ene click chemistry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Pretreatment of nylon 56 / cotton interwoven fabric: Ultrasonic cleaning of nylon 56 / cotton interwoven fabric with acetone, ethanol, and deionized water in sequence, and ultrasonic cleaning for 15 minutes in each solvent. After cleaning, take out the cloth sample and dry it.

[0032] Step 2: Nylon 56 / cotton interwoven fabric dopamine modification treatment: dopamine (0.4g) is dissolved in the Erlenmeyer flask containing deionized water (200 milliliters), uses Tris and Tris-HCl to adjust the solubility pH value of the liquid to 8.5, and then put the original nylon 56 / cotton interwoven fabric (4 cm x 4 cm) into it. The reaction system was sealed in an Erlenmeyer flask, and then placed in a low-noise shaking dyeing machine (temperature 45° C.) to shake for 24 hours. The treated fabric was ultrasonically oscillated with absolute ethanol, and dried in an oven at 60° C. for 0.5 hour to obtain a dopamine-modified nylon 56 / cotton interwoven fabric.

[0033] Step 3: Hydro...

Embodiment 2

[0036] Step 1: Pretreatment of nylon 56 / cotton interwoven fabric: Ultrasonic cleaning of nylon 56 / cotton interwoven fabric with acetone, ethanol, and deionized water in sequence, and ultrasonic cleaning for 15 minutes in each solvent. After cleaning, take out the cloth sample and dry it.

[0037] Step 2: Nylon 56 / cotton interwoven fabric dopamine modification treatment: dopamine (0.4g) is dissolved in the Erlenmeyer flask containing deionized water (200 milliliters), uses Tris and Tris-HCl to adjust the solubility pH value of the liquid to 8.5, and then put the original nylon 56 / cotton interwoven fabric (4 cm x 4 cm) into it. The reaction system was sealed in an Erlenmeyer flask, and then placed in a low-noise shaking dyeing machine (temperature 45° C.) to shake for 24 hours. The treated fabric was ultrasonically oscillated with absolute ethanol, and dried in an oven at 60° C. for 0.5 hour to obtain a dopamine-modified nylon 56 / cotton interwoven fabric.

[0038] Step 3: Hydro...

Embodiment 3

[0041] Step 1: Pretreatment of nylon 56 / cotton interwoven fabric: Ultrasonic cleaning of nylon 56 / cotton interwoven fabric with acetone, ethanol, and deionized water in sequence, and ultrasonic cleaning for 15 minutes in each solvent. After cleaning, take out the cloth sample and dry it.

[0042]Step 2: Nylon 56 / cotton interwoven fabric dopamine modification treatment: dopamine (0.4g) is dissolved in the Erlenmeyer flask containing deionized water (200 milliliters), uses Tris and Tris-HCl to adjust the solubility pH value of the liquid to 8.5, and then put the original nylon 56 / cotton interwoven fabric (4 cm x 4 cm) into it. The reaction system was sealed in an Erlenmeyer flask, and then placed in a low-noise shaking dyeing machine (temperature 45° C.) to shake for 24 hours. The treated fabric was ultrasonically oscillated with absolute ethanol, and dried in an oven at 60° C. for 0.5 hour to obtain a dopamine-modified nylon 56 / cotton interwoven fabric.

[0043] Step 3: Hydrop...

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Abstract

The invention discloses a method for preparing superhydrophobic textiles based on a dopamine-assisted mercapto-ene click chemistry method, comprising the following steps: S1. After pretreating the nylon 56 / cotton interwoven fabric, soak it in an aqueous solution of dopamine for modification treatment, Obtain a dopamine-modified nylon 56 / cotton interwoven fabric; S2. Immerse the fabric obtained in step S1 in a mixed solution containing hydrophobic mercaptan, vinyltrimethoxysilane and a photoinitiator, and click under the irradiation of ultraviolet light Coupling reaction, thus obtain superhydrophobic nylon 56 / cotton interwoven fabric. In the superhydrophobic textiles prepared by this method, hydrophobic substances are grafted on the surface of the fabric in the form of chemical bonds, which can improve the properties of the superhydrophobic textiles such as acid and alkali resistance, washing, friction, and ultraviolet light.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a dopamine-assisted mercapto-ene click chemistry method for preparing superhydrophobic textiles. Background technique [0002] Cotton fiber is the most abundant plant fiber, it is low cost, has excellent comfort, renewability and biodegradability, the main component is cellulose, since the surface of the cellulose substrate is rich in hydroxyl groups, they will absorb water become wet and less durable, so we need to impart superhydrophobic properties on the surface of cotton fibers. Polyamide 56, commonly known as Nylon 56, is one of the most popular synthetic fibers, Nylon 56 has a wide range of applications due to its excellent durability, abrasion resistance and corrosion resistance. Constructing micro-nano rough structures on nylon 56 fibers to endow them with superhydrophobic properties can broaden its application fields. [0003] Superhydrophobic surface usually refers t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/252D06M13/368D06M15/643D06M101/06D06M101/34
CPCD06M13/368D06M13/252D06M15/643D06M2101/06D06M2101/34D06M2200/12
Inventor 陈国强王宝亮
Owner SUZHOU UNIV