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Method for modifying nanometer titanium dioxide polyester fiber with high photocatalytic activity

A technology of nano-titanium dioxide and polyester fiber, which is applied in fiber treatment, fiber type, textile and papermaking, etc., to achieve the effect of simple process, low production cost and high photocatalytic activity

Inactive Publication Date: 2013-02-06
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no research on the use of titanium sulfate, urea and metal salts to support metal ions doped with nano-titanium dioxide by hydrothermal method.

Method used

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  • Method for modifying nanometer titanium dioxide polyester fiber with high photocatalytic activity
  • Method for modifying nanometer titanium dioxide polyester fiber with high photocatalytic activity
  • Method for modifying nanometer titanium dioxide polyester fiber with high photocatalytic activity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Weigh 2.0g of polyester fiber and 6.0g of titanium sulfate according to the mass ratio of 1:3, soak the polyester fiber in 5g / L sodium hydroxide solution, etch at 90°C for 20min, then dry it with 50°C anhydrous The ethanol solution was ultrasonically oscillated at 40KHz and 100W for 15min, and then washed repeatedly with deionized water, and the washed polyester fabric was dried at 70°C; the polyester fiber after etching treatment was weighed, and after etching treatment, The mass ratio of polyester fiber to titanium sulfate is 1:3, weigh 6g of titanium sulfate, weigh 10g of urea according to the mass ratio of titanium sulfate to urea of ​​3:5, and weigh 0.3g of silver nitrate according to 5% of the mass of titanium sulfate , measure 24g of deionized water according to the mass ratio of titanium sulfate to deionized water 1:4, measure 2.4g of polyethylene glycol according to 10% of the mass of deionized water, add polyethylene glycol to the deionized water, Under the co...

Embodiment 2

[0066] Weigh 2.0g of polyester fiber and 12.0g of titanium sulfate according to the mass ratio of 1:6, soak the polyester fiber in 20g / L sodium hydroxide solution, etch for 40min at 100°C, and use 70°C anhydrous The ethanol solution was ultrasonically oscillated at 40KHz and 100W for 30min, and then repeatedly washed with deionized water, and the cleaned polyester fabric was placed at 90°C for drying; The mass ratio of the polyester fiber to titanium sulfate is 1:6 to weigh 12g of titanium sulfate, 4g of urea is weighed according to the mass ratio of titanium sulfate to urea of ​​3:1, and 1.2g of chlorinated chloride is weighed according to 10% of the mass of titanium sulfate. For iron, measure 96 g of deionized water according to the mass ratio of titanium sulfate to deionized water of 1:8, and measure 19.2 g of polyethylene glycol according to 20% of the mass of deionized water, and add polyethylene glycol to the deionized water. , Under vigorous stirring conditions, titanium ...

Embodiment 3

[0069] Weigh 2.0g of polyester fiber and 8.0g of titanium sulfate according to the mass ratio of 1:4, soak the polyester fiber in 10g / L sodium hydroxide solution, etch for 30min at 100℃, use anhydrous at 60℃ The ethanol solution was ultrasonically oscillated for 20 minutes at 40KHz and 100W, and then repeatedly washed with deionized water. The cleaned polyester fabric was placed at 80°C for drying; The mass ratio of the polyester fiber to titanium sulfate is 1:4 to weigh 8g of titanium sulfate, 4g of urea is weighed according to the mass ratio of titanium sulfate to urea of ​​2:1, and 0.56g of nickel sulfate is weighed according to 7% of the mass of titanium sulfate , Measure 48g of deionized water according to the mass ratio of titanium sulfate to deionized water 1:6, and measure 7.2g of polyethylene glycol according to 15% of the mass of deionized water, add polyethylene glycol to deionized water, Under vigorous stirring conditions, titanium sulfate, urea and nickel sulfate ...

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Abstract

The invention discloses a method for modifying nanometer titanium dioxide polyester fibers with high photocatalytic activity; and the method comprises the following steps of: (1) soaking the polyester fibers in a sodium hydroxide solution; etching the polyester fibers; and washing and drying the etched polyester fibers; (2) preparing a modifying solution; and modifying the etched polyester fibers by using the modifying solution; and (3) washing and drying the modified polyester fibers. Through the adoption of the method disclosed by the invention, metal ions are directly loaded on the surfaces of the polyester fibers and anatase-phase nanometer titanium dioxide films are doped on the surfaces of the polyester fibers; the modified polyester fibers obtain good photocatalytic efficiency; the spectral response ranges of the polyester fibers are enlarged; and the self-cleaning capacities of the polyester fibers are improved.

Description

technical field [0001] The invention belongs to the technical field of functional textile materials, and relates to a method for modifying polyester fibers, in particular to a method for modifying nano-titanium dioxide polyester fibers with high photocatalytic activity. Background technique [0002] Nano titanium dioxide is a kind of functional fine inorganic nano material with high added value that has developed rapidly in recent years. It has small particle size, large specific surface area, high surface activity, good thermal conductivity, good weather resistance and chemical corrosion resistance. Its unique ultraviolet shielding ability, photocatalytic activity and color effect make it very popular once it is available, and it is widely used in antibacterial, wastewater treatment, catalysis and automobile industry and other fields. Anatase-phase nano-TiO2 has the advantages of non-toxicity, high stability, low preparation cost, no secondary pollution and wide range of ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M101/32
Inventor 张辉李芳
Owner XI'AN POLYTECHNIC UNIVERSITY
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