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Efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric and preparation method thereof

An anti-ultraviolet and high-efficiency technology, applied in the direction of wear-resistant fibers, plant fibers, light-resistant fibers, etc., can solve the problems of complex preparation process of super-hydrophobic cotton fabrics and unfavorable large-scale application, and achieve good super-hydrophobic performance, which is beneficial to Effects of large-scale promotion and improvement of UV protection performance

Pending Publication Date: 2022-02-15
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a high-efficiency anti-ultraviolet wear-resistant superhydrophobic cotton fabric and its preparation method, and solve the technical problems in the prior art that the preparation process of superhydrophobic cotton fabric is complicated and unfavorable for large-scale application

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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  • Efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric and preparation method thereof
  • Efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric and preparation method thereof
  • Efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric and preparation method thereof

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preparation example Construction

[0019] The first aspect of the present invention provides a kind of preparation method of highly efficient anti-ultraviolet wear-resisting superhydrophobic cotton fabric, comprises the following steps:

[0020] S1. Dispersing micron-sized particles, nano-sized particles and silane coupling agent into the first organic solvent to form solution A;

[0021] S2. Dispersing polydimethylsiloxane, curing agent and isocyanate crosslinking agent into a second organic solvent to form solution B;

[0022] S3. After immersing the cotton fabric in solution A, take it out, and then immerse it in solution B after drying, take it out and dry it, and obtain a highly efficient UV-resistant and wear-resistant super-hydrophobic cotton fabric.

[0023] In step S1 of the present invention, dispersing the micron-sized particles, nano-sized particles and silane coupling agent into the first organic solvent to form solution A includes: adding the micron-sized particles and nano-sized particles into th...

Embodiment 1

[0030] (1) The pure cotton fabric is rinsed three times with water and ethanol respectively, to remove the impurities on the surface;

[0031] (2) Add 0.8g of mixed particles of micron-sized silicon dioxide (average particle size 1 micron) and nano-sized titanium dioxide (particle size 1-10 nm) with a mass ratio of 1:0 to 50ml of ethanol, and then add them after ultrasonic dispersion 50 μL N-[3-(trimethoxysilyl)propyl]ethylenediamine and magnetically stirred for 1 hour to form solution A;

[0032] (3) Dissolve 1g of polydimethylsiloxane and 0.1g of curing agent (Sylgard184) in 74ml of n-hexane, after ultrasonic dispersion, add 80μL of hexamethylene diisocyanate trimer and stir for 30min to form solution B;

[0033] (4) Immerse the cotton fabric in solution A for 50 minutes, take it out, and dry it at room temperature, then immerse it in solution B for 1 minute, take it out, put it in a 50°C oven and dry it for 2 hours to obtain a superhydrophobic cotton fabric.

[0034] It is...

Embodiment 2

[0036] (1) The pure cotton fabric is rinsed three times with water and ethanol respectively, to remove the impurities on the surface;

[0037] (2) Add 0.8 g of mixed particles of micron-sized silica (average particle size 1 micron) and nano-sized titanium dioxide (particle size 1-10 nm) with a mass ratio of 3:1 into 50 ml of ethanol, and then add them after ultrasonic dispersion 50 μL N-[3-(trimethoxysilyl)propyl]ethylenediamine and magnetically stirred for 1 hour to form solution A;

[0038](3) Dissolve 1g of polydimethylsiloxane and 0.1g of curing agent (Sylgard184) in 74ml of n-hexane, after ultrasonic dispersion, add 80μL of hexamethylene diisocyanate trimer and stir for 30min to form solution B;

[0039] (4) Immerse the cotton fabric in solution A for 50 minutes, take it out, and dry it at room temperature, then immerse it in solution B for 1 minute, take it out, put it in a 50°C oven and dry it for 2 hours to obtain a superhydrophobic cotton fabric.

[0040] It is measu...

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Abstract

The invention discloses an efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric and a preparation method thereof. The preparation method comprises the following steps: dispersing micron-scale particles, nano-scale particles and a silane coupling agent into a first organic solvent to form a solution A; dispersing polydimethylsiloxane, a curing agent and an isocyanate cross-linking agent into a second organic solvent to form a solution B; and immersing the cotton fabric into the solution A, taking out, immersing into the solution B after drying, taking out, and drying to obtain the efficient anti-ultraviolet wear-resistant super-hydrophobic cotton fabric. The surface of the obtained cotton fabric shows high super-hydrophobic performance, has excellent mechanical and chemical stability, and can still keep super-hydrophobic after suffering from a harsh external environment; and in addition, compared with the original cotton fabric, the super-hydrophobic cotton fabric has the advantage that the ultraviolet protection performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a high-efficiency ultraviolet-proof and wear-resistant super-hydrophobic cotton fabric and a preparation method thereof. Background technique [0002] A surface with a water contact angle (WCA) greater than 150° is defined as a superhydrophobic surface. Due to its strong waterproof performance, it has been applied in many fields such as self-cleaning, anti-icing, metal anti-corrosion, fog collection, ocean reduction and oil-water separation. By studying the phenomenon that the surface of the lotus leaf can make raindrops roll down to remove pollutants, it is found that the micro-nano "papillary" structure and the waxy substance covering the surface are the main reasons for this "self-cleaning" phenomenon. In addition, from the classic Wenzel and Cassie-Baxter model, it can be seen that the rough structure and chemical composition are highly related to the hydrophobic...

Claims

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Application Information

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IPC IPC(8): D06M11/46D06M11/79D06M15/643D06M101/06
CPCD06M15/643D06M11/79D06M11/46D06M2101/06D06M2200/12D06M2200/35D06M2200/25
Inventor 龚晓熊政
Owner WUHAN UNIV OF TECH
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