Method for low-temperature preparation of anatase titanium dioxide film on surface of cotton fabric

An anatase titanium dioxide and titanium dioxide technology, which is applied in the directions of plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of high cost of high-frequency electric field heating, unsuitable for large-scale production in factories, etc., and achieves low preparation temperature and raw material cost. Low cost and high photocatalytic performance

Inactive Publication Date: 2013-11-27
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-frequency electric field heating cost of this method is relatively high, and it is not suitable for large-scale production in factories.

Method used

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  • Method for low-temperature preparation of anatase titanium dioxide film on surface of cotton fabric
  • Method for low-temperature preparation of anatase titanium dioxide film on surface of cotton fabric
  • Method for low-temperature preparation of anatase titanium dioxide film on surface of cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Mix 3mL of absolute ethanol, 6mL of glacial acetic acid and 10mL of tetra-n-butyl titanate, then slowly add it dropwise to 120mL of a mixed solution of acetic acid and water with a pH of 2.5 for hydrolysis, and form a light yellow color after vigorous stirring transparent sol.

[0029] Soak the pretreated cotton fabric in titanium dioxide sol for 3 minutes, dip twice and roll it twice (the liquid rolling rate is 80%), pre-dry it at 80°C for 3 minutes, steam it in a steam box at 100°C for 3 hours, and finish drying the cotton fabric. The process of preparing titanium dioxide film on the surface of fabric.

[0030] According to the national standard GB / T8629-2001 "Household Washing and Drying Procedures for Textile Testing", the titanium dioxide modified cotton fabrics were washed and dried (type A washing machine, 5A washing procedure, A-type drying procedure), after 50 times of washing Finally, characterize the XRD pattern of the film, see figure 1 . The test results...

Embodiment 2

[0032] Mix 3mL of absolute ethanol, 6mL of glacial acetic acid and 10mL of tetra-n-butyl titanate, then slowly add it dropwise to 120mL of a mixed solution of acetic acid and water with a pH of 2.5 for hydrolysis, and form a light yellow color after vigorous stirring transparent sol.

[0033] Soak the pretreated cotton fabric in titanium dioxide sol for 3 minutes, dip twice and roll it twice (the liquid rolling rate is 80%), pre-dry it at 80°C for 3 minutes, steam it in a steam box at 100°C for 3 hours, and finish drying the cotton fabric. The process of preparing titanium dioxide film on the surface of fabric.

[0034] According to the national standard GB / T8629-2001 "Household Washing and Drying Procedures for Textile Testing", the titanium dioxide modified cotton fabrics were washed and dried (type A washing machine, 5A washing procedure, A-type drying procedure), after 50 times of washing Finally, the film-forming state of the fabric surface was characterized by scanning ...

Embodiment 3

[0036] Mix 3mL of absolute ethanol, 6mL of glacial acetic acid and 10mL of tetra-n-butyl titanate, then slowly add it dropwise to 120mL of a mixed solution of acetic acid and water with a pH of 2.5 for hydrolysis, and form a light yellow color after vigorous stirring transparent sol.

[0037] Soak the pretreated cotton fabric in titanium dioxide sol for 3 minutes, dip twice and roll it twice (the liquid rolling rate is 80%), pre-dry it at 80°C for 3 minutes, steam it in a steam box at 100°C for 3 hours, and finish drying the cotton fabric. The process of preparing titanium dioxide film on the surface of fabric.

[0038] According to the national standard GB / T8629-2001 "Household Washing and Drying Procedures for Textile Testing", the titanium dioxide modified cotton fabrics were washed and dried (type A washing machine, 5A washing procedure, A-type drying procedure), after 50 times of washing Finally, the fabric prepared with titanium dioxide film was placed in a closed conta...

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Abstract

The invention relates to a method for low-temperature preparation of an anatase titanium dioxide film on the surface of cotton fabric, which comprises the following steps: (1) mixing absolute ethyl alcohol, glacial acetic acid and n-tetrabutyl titanate, then slowly dropwise adding the mixture into a mixed solution of acetic acid with a pH value of 2.5-3 and water for hydrolysis, and severely stirring to form titanium dioxide sol; and (2) soaking the cotton fabric in the titanium dioxide sol for 2-3 minutes, soaking twice and rolling twice; pre-drying at 70-90 DEG C for 3-5 minutes; and steaming at 80-100 DEG C for 2-3 hours. The preparation method provided by the invention is simple and does not need an adhesive or high-temperature curing treatment; through a conventional soaking-rolling-steaming technology, an anatase film with good binding strength, high crystallinity and excellent photocatalytic performance is formed on the surface of the cotton fabric; and the method can be applied to the purification of in-car and indoor air, self-cleaning of fabric and the like.

Description

technical field [0001] The invention belongs to the field of preparation of titanium dioxide thin films, in particular to a method for preparing anatase titanium dioxide thin films on the surface of cotton fabrics at low temperature. Background technique [0002] With the development of the economy and the improvement of people's living standards, people's functional requirements for textiles are not limited to the most basic wearable performance. favor. For textile printing and dyeing enterprises, endowing textiles with special functions plays a vital role in improving product quality and increasing product added value. Photocatalytic material TiO 2 (especially the anatase crystal form) has high photocatalytic activity, good stability and heat resistance, non-toxic and cheap to the human body, and has been widely known. The application of nano photocatalytic materials in textiles can endow fabric Photocatalytic self-cleaning, UV resistance, VOC degradation and other func...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M101/06
Inventor 蔡再生郭青超王黎明
Owner DONGHUA UNIV
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