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Preparation method of durable super-hydrophobic fabric

A super-hydrophobic and fabric technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of equipment and fabric type dependence, achieve good washing resistance, use promotion, and simple operation

Inactive Publication Date: 2015-04-29
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods also have certain disadvantages, such as dependence on equipment and fabric types

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 durable super-hydrophobic fabric
  • Preparation method of durable super-hydrophobic fabric
  • Preparation method of durable super-hydrophobic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: Deposition of polydopamine: Wash the polyester fabric with deionized water, immerse it in a tris-hydrochloric acid buffer solution (pH = 8.5) with a concentration of 2 mg / mL dopamine hydrochloride, and the deposition temperature is At room temperature, the deposition time was 12 h, and then the fabric was taken out, ultrasonically cleaned in deionized water for 10 min, and dried.

[0022] Step 2: Deposition of silver oxide: The polydopamine-deposited fabric was immersed in AgNO at a concentration of 5 mg / mL 3 In the aqueous solution for 1 min, take it out and rinse it in deionized water, and then immerse it in a 5 mg / mL NaOH solution for 1 min. Repeated sequential immersion in AgNO 3 / NaOH aqueous solution 3 times. The fabrics were ultrasonically cleaned in deionized water for 10 min and dried.

[0023] Step 3: Deposition of low surface energy substances: The polyester fabric treated by the above steps was immersed in a solution of dodecyl mercaptan methanol ...

Embodiment 2

[0026] Step 1: Deposition of polydopamine: Wash the polyester fabric with deionized water and immerse it in a tris-hydrochloric acid buffer solution (pH = 8.5) with a concentration of 5 mg / mL dopamine hydrochloride. The deposition temperature is At room temperature, the deposition time was 6 h, and then the fabric was taken out, ultrasonically cleaned in deionized water for 10 min, and dried.

[0027] Step 2: Deposition of silver oxide: The polydopamine-deposited fabric was immersed in AgNO at a concentration of 5 mg / mL 3 In the aqueous solution for 10 min, take it out and rinse it in deionized water, and then immerse it in a 5 mg / mL NaOH solution for 10 min. The fabrics were ultrasonically cleaned in deionized water for 10 min and dried.

[0028] Step 3: Deposition of low surface energy substances: The polyester fabric treated by the above steps was immersed in a solution of dodecyl mercaptan methanol with a concentration of 5 μL / mL, deposited at room temperature for 10 min,...

Embodiment 3

[0031] Step 1: Deposition of polydopamine: Wash the cotton fabric with deionized water and immerse it in a tris-hydrochloric acid buffer solution (pH = 8.5) with a concentration of 5 mg / mL dopamine hydrochloride, and the deposition temperature is At room temperature, the deposition time was 6 h, and then the fabric was taken out, ultrasonically cleaned in deionized water for 10 min, and dried.

[0032] Step 2: Deposition of silver oxide: The polydopamine-deposited fabric was immersed in AgNO at a concentration of 5 mg / mL 3 In the aqueous solution for 1 min, take it out and rinse it in deionized water, and then immerse it in a 5 mg / mL NaOH solution for 1 min. Repeated sequential immersion in AgNO 3 / NaOH aqueous solution 3 times. The fabrics were ultrasonically cleaned in deionized water for 10 min and dried.

[0033] Step 3: Deposition of low surface energy substances: immerse the polyester fabric treated in the above steps in a methanol solution of perfluorodecanethiol w...

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 provides a preparation method of a durable super-hydrophobic fabric. The preparation method comprises the following steps: firstly, depositing a polydopamine film on the surface of a common fabric; secondly, depositing silver oxide particles on the surface of the common fabric by using the chelating property of the common fabric to nano-particles; and finally, performing hydrophobic treatment on the fabric by using a low-surface-energy material, thereby obtaining the durable super-hydrophobic fabric. The preparation method provided by the invention has the positive progress effects that the static contact angle of water drops on the surface of the fabric prepared by the method is more than 150 degrees, and the water drops can roll easily on the surface of the fabric. After being washed or rubbed for a long time, the fabric still has excellent super-hydrophobic property; and the preparation method of the super-hydrophobic fabric does not need specific instruments and equipment, is simple to operate and is beneficial for popularization.

Description

technical field [0001] The invention relates to a preparation method of a functional fabric, in particular to a preparation method of a durable superhydrophobic fabric. Background technique [0002] Superhydrophobic fabrics have special wettability similar to the surface of lotus leaves. Water droplets are spherical on the surface (static contact angle greater than 150°) and easy to roll (smaller rolling angle), and water droplets can carry Remove dirt from the surface of the fabric. Therefore, superhydrophobic fabrics have excellent properties such as waterproof, antifouling, and self-cleaning, and are currently one of the hotspots in the research of functional textiles. [0003] At present, there have been many reports on the preparation methods of superhydrophobic fabrics. For example, sol-gel method (Chinese patent CN102277720A), nanoparticle loading method (Chinese patent CN102321974A), nanostructure growth method (Chinese patent CN101748596A), etc. can be more conven...

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): D06M15/61D06M11/42D06M13/252
Inventor 欧军飞汪志乐王法军薛名山
Owner NANCHANG HANGKONG UNIVERSITY
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