Method for in situ preparing Au modified and TiO2 compound air purified functional textile at low temperature

An air purification, low-temperature in-situ technology, applied in plant fibers, animal fibers, textiles and papermaking, etc., can solve the problems of easy photo-oxidative degradation of flexible substrates, low temperature resistance of flexible substrates, and low catalytic efficiency. The effect of reduced agglomeration efficiency, no secondary pollution, and simple preparation method

Inactive Publication Date: 2011-08-31
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods have problems such as the photocatalyst being covered by the adhesive, serious agglomeration, low catalytic efficiency, and easy photooxidative degradation of the flexible substrate.
Due to the low temperature resistance of flexible substrates, the use of photocatalyst deposition on flexible substrates and then crystal conversion methods is limited.

Method used

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  • Method for in situ preparing Au modified and TiO2 compound air purified functional textile at low temperature
  • Method for in situ preparing Au modified and TiO2 compound air purified functional textile at low temperature
  • Method for in situ preparing Au modified and TiO2 compound air purified functional textile at low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Wool fabric surface pretreatment

[0032] Ultrasonic cleaning of wool fabric with acetone solution for 30 minutes, drying at room temperature 20°C for 12 hours, then treating in BASF's high-efficiency cleaning agent Kieralon OL solution at 40°C for 20 minutes, and drying at 80°C for 30 minutes;

[0033] (2) Protective finishing of wool fabric against photooxidation

[0034] Take out the wool fabric padding fiber anti-oxidation finishing solution LZQ for 30 minutes, pre-bake at 70°C, and then heat up to 130°C for 2 minutes; the LZQ finishing solution is composed of 1-3% Tween 80, 4-10% nano-hydroxy Apatite HAP40, 3-8% tetraerythritol ester, 6-10% octyltrimethoxysilane and 69-86% water;

[0035] (3) Preparation of low temperature precursor

[0036] Under an inert environment, slowly add 0.02mol titanium tetraisopropoxide to 30mL isopropanol under stirring, add 0.01mol triethylamine as a stabilizer to the mixture, stir at 200rpm for 1min, and then continue to add 20m...

Embodiment 2

[0044] (1) Cotton fabric surface pretreatment

[0045] Ultrasonic cleaning of cotton fabrics with acetone solution for 40 minutes, drying at room temperature 25 ° C for 14 hours, and then in BASF’s high-efficiency cleaning agent Kieralon OL solution for 25 minutes at 43 ° C, and drying at 83 ° C for 37 min;

[0046] (2) Protective finishing of cotton fabric against photooxidation

[0047] Take out the cotton fabric padding fiber anti-oxidation finishing solution LZQ for 40 minutes, pre-dry at 75°C, and then heat up to 140°C for 3 minutes; the LZQ finishing solution is composed of 1-3% Tween 80, 4-10% nano-hydroxy Apatite HAP40, 3-8% tetraerythritol ester, 6-10% octyltrimethoxysilane and 69-86% water.

[0048] (3) Preparation of low temperature precursor

[0049] Under an inert environment, slowly add 0.08mol titanium tetraisopropoxide to 40mL isobutanol under stirring, add 0.02mol triethylamine as a stabilizer to the mixture, stir at 250rpm for 2min, and then continue to add...

Embodiment 3

[0057] (1) Surface pretreatment of linen fabric

[0058] Ultrasonic cleaning of cotton fabrics with acetone solution for 50 minutes, drying at room temperature at 30°C for 16 hours, then treating in BASF’s high-efficiency cleaning agent Kieralon OL solution at 45°C for 30 minutes, and drying at 85°C for 45 minutes;

[0059] (2) Protective finishing of linen fabric against photooxidation

[0060] Take out the linen fabric padding fiber anti-oxidation finishing solution LZQ for 50 minutes, pre-bake at 80°C, and then heat up to 150°C for 4 minutes; the LZQ finishing solution is composed of 1-3% Tween 80, 4-10% nano-hydroxy Apatite HAP40, 3-8% tetraerythritol ester, 6-10% octyltrimethoxysilane and 69-86% water.

[0061] (3) Preparation of low temperature precursor

[0062] Under an inert environment, slowly add 0.15 mol of titanium tetraisopropoxide to 50 mL of isobutanol under stirring, add 0.03 mol of triethylamine as a stabilizer to the mixture, stir at 300 rpm for 4 min, and...

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PUM

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Abstract

The invention relates to a method for preparing an Au modified and TiO2 compound air purified functional textile at low temperature in situ. The method comprises the following steps of: (1) ultrasonically cleaning a textile by an acetone solution, drying and then treating the textile in a high-efficiency cleaning agent; (2) padding the textile into an antioxidative finishing solution LZQ, pre-drying and roasting at 130-150 DEG C; (3) in an inert environment, adding tetra-isopropyltitanate to alcohol dehydratum, and then adding a stabilizing agent, a mixed liquor of alcohol dehydratum, acid and deionized water and a wetting agent; (4) dipping the textile into sol, drying, removing residual sol on the surface of the material and then drying again; (5) treating the dried textile in boiled water, pre-drying at 40-50 DEG C, dipping the textile into a gold chloride solution and irradiating under a quasimolecule ultraviolet light source to obtain a compound air purified textile. The method is simple and has low cost, no secondary pollution, and easy industrial production, and the obtained flexible air purified material has good air purification effect.

Description

technical field [0001] The invention belongs to the field of preparation of composite air purification functional fabrics, in particular to a low-temperature in-situ preparation of Au-modified TiO 2 A method for compounding air-purifying functional fabrics. Background technique [0002] In recent years, with the rapid development of my country's economy and the improvement of people's lives, the decoration level of offices and residences is getting higher and higher. New building materials, especially chemical synthesis building materials, are widely used in high-end furniture and household appliances, and have entered the home and office. Spices, cosmetics, polishes, air fresheners, insect repellants, insecticides, detergents, etc. have also become indispensable supplies in people's lives. While people are enjoying the comfort and satisfaction brought by these products, they are constantly producing various pollutants and harmful substances, destroying indoor air quality (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/46D06M11/83D06M11/71D06M13/224D06M13/513D06M13/328D06M13/368D06M101/12D06M101/06
Inventor 何瑾馨刘保江高品王振华黄长根刘路赵强强唐文君姚金龙李南南瞿建刚
Owner DONGHUA UNIV
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