Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects

A nano-titanium dioxide, self-cleaning technology, applied in the field of material science, can solve the problems of accelerating skin aging, harming the human body, etc., and achieves the effects of industrial production, strong practicability, and simple operation methods

Active Publication Date: 2014-02-12
上海拓纳化学新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A moderate amount of ultraviolet radiation is beneficial to human health, but excessive ultraviolet rays can damage the human body, accelerate skin aging and cause various skin problems and even skin cancer

Method used

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  • Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects
  • Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects
  • Preparation method of modified nano titanium dioxide finishing agent with uvioresistant and self-cleaning double effects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The finishing method that rutile type nano-titanium dioxide has ultraviolet absorption and self-cleaning performance to polyester-cotton fabric is characterized in that it is prepared through the following steps:

[0018] (1) Add the rutile nano-titanium dioxide powder into the ethanol solution to form an ethanol solution with a mass concentration of 5%, and ultrasonically treat it for a period of time so that the nano-titanium dioxide powder is evenly dispersed in the ethanol solution.

[0019] (3) Add 1% silane coupling agent according to the mass of titanium dioxide to the ethanol solution in (1), adjust the pH to neutral, stir evenly, and react at a constant temperature of 80° C. for 2 hours to obtain a modified nano-titanium dioxide finishing solution.

[0020] (3) Polyester cotton is arranged in the modified nano-titanium dioxide finishing liquid, and two dipping and two rolling are adopted, and the rolling ratio reaches 80%, so that the titanium dioxide is uniform...

Embodiment 2

[0023] The finishing method that rutile type nano-titanium dioxide has ultraviolet absorption and self-cleaning performance to polyester-cotton fabric is characterized in that it is prepared through the following steps:

[0024] (1) Add the rutile nano-titanium dioxide powder into the ethanol solution to form an ethanol solution with a mass concentration of 4%, and ultrasonically treat it for a period of time to make the nano-titanium dioxide powder uniformly disperse in the ethanol solution.

[0025] (3) Add 2% silane coupling agent according to the mass of titanium dioxide to the ethanol solution in (1), adjust the pH to neutral, stir evenly, react at a constant temperature of 80° C. for 3 hours, and obtain the modified nano-titanium dioxide finishing solution.

[0026] (3) Polyester cotton is arranged in the modified nano-titanium dioxide finishing liquid, and two dipping and two rolling are adopted, and the rolling ratio reaches 70%, so that the titanium dioxide is uniforml...

Embodiment 3

[0029] The finishing method that rutile type nano-titanium dioxide has ultraviolet absorption and self-cleaning performance to polyester-cotton fabric is characterized in that it is prepared through the following steps:

[0030] (1) Add the rutile nano titanium dioxide powder into the ethanol solution to form an ethanol solution with a mass concentration of 3%, and ultrasonically treat it for a period of time to make the nano titanium dioxide powder uniformly disperse in the ethanol solution.

[0031] (3) Add 3% silane coupling agent according to the mass of titanium dioxide to the ethanol solution in (1), adjust the pH to neutral, stir evenly, and react at a constant temperature of 80° C. for 1 hour to obtain a modified nano-titanium dioxide finishing solution.

[0032] (3) Polyester cotton is arranged in the modified nano-titanium dioxide finishing liquid, and two dipping and two rolling are adopted, and the excess rolling rate reaches 60%, so that the titanium dioxide is eve...

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Abstract

The invention relates to a finishing method of rutile type nano titanium dioxide with ultraviolet absorption and self-cleaning performance for polyester-cotton fabric. An organic silane coupling agent (KH560) is utilized to carry out surface modification onto rutile type nano TiO2 through main two steps: (1), adding the rutile type nano titanium dioxide powder into alcohol to prepare alcohol liquor with mass concentration of 1%-5%, treating for a certain time by adopting ultrasonic or mechanical stirring or microwave-ultrasonic homogenizing, so that the nano titanium dioxide powder is uniformly dispersed in the alcohol; (2), adding a coupling agent which accounts for 1%-5% of the titanium dioxide into the alcohol liquor, regulating pH to neutral, stirring uniformly, reacting for 1 hour-3 hours at the constant temperature of 70 DEG C-90 DEG C to obtain the modified nano titanium dioxide finishing liquor. The modified nano TiO2 finishes the polyester-cotton fabric, the finished and dyed fabric is placed under an ultraviolet lamp with special ultraviolet wavelength for being irradiated for a certain time, and the finished fabric is measured to have uvioresistant and self-cleaning performances. The preparation method disclosed by the invention is simple and strong in operation practicability; the fabric can obtain the uvioresistant and self-cleaning performances at the same time; moreover, the nano titanium dioxide has protective effect for strength loss of the fabric.

Description

technical field [0001] The invention relates to a finishing method with rutile nano-titanium dioxide applied to polyester-cotton fabrics, which has the effect of anti-ultraviolet and self-cleaning, and belongs to the field of material science. Background technique [0002] Titanium dioxide has good chemical stability, high catalytic activity, cheap and easy to obtain, non-toxic and excellent semiconductor properties, and has broad application prospects in energy and environment. The crystalline phase of titanium dioxide mainly includes anatase, brookite, rutile and titanium dioxide B. The rutile type is the most stable crystal form in titanium dioxide. It has a dense structure and has higher hardness, density, and density compared with anatase. Thermal conductivity, dielectric constant and refractive index, with high UV shielding and weather resistance. Nano-titanium dioxide has small particle size, large specific surface area, strong magnetism, photocatalysis, good absorpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M13/50D06M101/32D06M101/06
Inventor 蒋学田秀枝孙永梅马广冉
Owner 上海拓纳化学新材料有限公司
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