Self-cleaning cloth with decontamination and anti-bacteria functions in the sun and manufacturing method thereof

A production method and sunlight technology, applied in textiles, papermaking, fiber processing and other directions, can solve the problems of increased process cost, high heat treatment temperature, weak decontamination and antibacterial effect, etc., and achieve the effect of low production cost and simple preparation process.

Active Publication Date: 2012-07-18
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the subsequent high heat treatment temperature not only increases the process cost, but also may disturb the loaded TiO due to the generation of air bubbles. 2 Nanoparticles make it desorb
[0004] Although some research reports or patents have disclosed some antibacterial, decontamination, and UV-resistant modified cloths,

Method used

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  • Self-cleaning cloth with decontamination and anti-bacteria functions in the sun and manufacturing method thereof
  • Self-cleaning cloth with decontamination and anti-bacteria functions in the sun and manufacturing method thereof
  • Self-cleaning cloth with decontamination and anti-bacteria functions in the sun and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Take 100 ml of titanium dioxide sol with a concentration of 20 g / L, add 1 ml of acetylacetone and 2 ml of trimethylamine, and react under reflux at 120 degrees for 12 hours to obtain a modified titanium dioxide sol. (2) A piece of cleaned cotton cloth (size 4 cm × 4 cm), immersed in the modified titanium dioxide sol for 30 seconds, taken out, pressed and rolled under a pressure of 5 kg / cm2, and then dipped and rolled once. The cloth is soaked in hot water at 95 degrees for 30 minutes, and the water is changed 3 times during this period to obtain a stabilized modified titanium dioxide coating. (3) preparation concentration is 50 milliliters of silver nitrates of 0.01 mol / liter, and 50 milliliters of potassium bromide of 0.005 mol / liter and 0.005 mol / liter of potassium chloride mixed solution 50 milliliters, the cotton cloth after the treatment of modified titanium dioxide is immersed in nitric acid earlier Soak in silver solution for 300 seconds, then immerse in pota...

Embodiment 2

[0028] (1) Take 100 ml of titanium dioxide sol with a concentration of 50 g / L, add 2 ml of acetylacetone and 3 ml of triethylamine, and react under reflux at 110 degrees for 24 hours to obtain a modified titanium dioxide sol. (2) A piece of cleaned cotton cloth (size 5 cm × 5 cm), immersed in the modified titanium dioxide sol for 60 seconds, taken out and rolled under a pressure of 2.5 kg / cm2, and then dipped-rolled twice, Soak the cloth in 80-degree hot water for 20 minutes, and change the water twice during this period to obtain a stabilized modified titanium dioxide coating. (3) Preparation concentration is 100 milliliters of silver ammonia solution of 0.05 mol / liter, and 100 milliliters of mixed solution of 0.02 mol / liter potassium iodide and 0.03 mol / liter potassium bromide, soaks the cotton cloth after the modified titanium dioxide treatment earlier into potassium iodide and bromine Potassium chloride mixed solution for 60 seconds, then immersed in silver ammonia solution ...

Embodiment 3

[0030] (1) Take 50 ml of titanium dioxide sol with a concentration of 10 g / L, add 1 ml of citric acid and 3 ml of diethylamine, and react under reflux at 130 degrees for 48 hours to obtain a modified titanium dioxide sol. (2) A piece of cleaned woolen cloth (size 5 cm × 5 cm), immersed in the modified titanium dioxide sol for 120 seconds, taken out, pressed and rolled under a pressure of 1.5 kg / cm2, and then dipped and rolled three times, Soak the cloth in 100-degree hot water for 50 minutes, and change the water 4 times during the period to obtain a stabilized modified titanium dioxide coating. (3) preparation concentration is 60 milliliters of silver-ammonia solutions of 0.005 mol / liter, and 60 milliliters of potassium chloride mixed solutions of 0.0025 mol / liter potassium bromide and 0.0025 mol / liter, the wool cloth after the modified titanium dioxide treatment is first Immerse in silver ammonia solution for 120 seconds, then immerse in potassium bromide solution for 120 se...

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Abstract

The invention relates to a self-cleaning cloth with decontamination and anti-bacteria functions in the sun and a manufacturing method thereof. The manufacturing method comprises the following steps of: forming a layer of photocatalytic complex coating on the surface of a cloth, adding a stabilizing agent and organic amines to a titanium dioxide collosol, jointly stirring, refluxing and reacting to obtain a stable modified titanium dioxide collosol, for a cleaned cloth, loading the modified titanium dioxide collosol to the surface of the cotton by adopting a multi-step circulative soaking-rolling method, soon afterwards, carrying out stabilizing treatment and washing by adopting a hot water bath method, then sequentially immersing the cloth in a solution of silver compound and halide, and obtaining a silver compound composite coating by adopting an in-situ adsorption-reaction-sedimentation method. Compared with the prior art, the manufacturing method provided by the invention is simpleand appropriate in cost; and the prepared self-cleaning cloth has the self-cleaning functions of decontamination and anti-bacteria in the sun, in cloudy days, stray lights or under the condition of indoor natural lights.

Description

technical field [0001] The invention belongs to the field of inorganic nanometer materials, and in particular relates to a self-cleaning cloth with decontamination and antibacterial functions under sunlight and a manufacturing method thereof. Background technique [0002] Self-cleaning technology is ubiquitous in nature, such as the surface of lotus leaves, insect wings, bird feathers, etc. The special microscopic and nanostructures of these surfaces make the surface hydrophobic and form a self-cleaning phenomenon. However, the self-cleaning phenomenon based on surface hydrophobicity cannot remove oily stains on the surface, and its application range is still limited. Recently, the photocatalytic self-cleaning technology based on nano-titanium dioxide has attracted widespread attention, because titanium dioxide has the advantages of low price, stable performance, non-toxic and non-corrosive, and can use green and clean solar energy as energy. On the one hand, under specific...

Claims

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Application Information

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IPC IPC(8): D06M11/46D06M11/83
Inventor 龙明策蔡伟民
Owner SHANGHAI JIAO TONG UNIV
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