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Freon-free super hydrophobic UV resistant cotton fabric and method for preparing same

A cotton fabric, super-hydrophobic technology, applied in plant fibers, textiles, papermaking, fiber treatment, etc., can solve the problems of high price of organic fluorine materials, environmental hazards, etc., and achieve good UV protection performance

Inactive Publication Date: 2010-07-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to utilize the self-cleaning effect of the superhydrophobic surface, Chinese patent CN 1242114C discloses nano self-cleaning cashmere or products and its preparation method, Chinese patent CN 1277019C discloses nano self-cleaning silk and products, and Chinese patent CN 1824884A discloses nano-functional The preparation method of the self-cleaning suit fabric and ready-made clothing products of non-toxic materials, Chinese patent CN 100334291C discloses the preparation method of the down jacket fabric with self-cleaning function. Coating or spraying endows the fabric with both hydrophobic and oleophobic properties, but most organic fluorine materials are not only expensive but also harmful to the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Freon-free super hydrophobic UV resistant cotton fabric and method for preparing same
  • Freon-free super hydrophobic UV resistant cotton fabric and method for preparing same

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: First, slowly add 8.5 mL of butyl titanate to 20 mL of absolute ethanol under stirring to obtain solution A; stir and mix 1.5 mL of deionized water, 5 mL of acetic acid and 20 mL of absolute ethanol to obtain solution B The A solution is slowly added in the B solution in 1 hour and constantly stirred, and then stirred at room temperature for 24 hours to obtain a transparent light yellow nano-titanium dioxide sol; the mass concentration of titanium dioxide in the nano-titanium dioxide sol is diluted to 0.4%, then the cotton fabric is dipped in the nano-titanium dioxide sol of 0.4% by mass concentration for 8 minutes, and the excess solution is rolled off by a padder, and the excess rate is 80wt%. After repeating the padding process 1 time, the cotton The fabric was baked at 110° C. for 8 minutes; the cotton fabric after padding with nano-titanium dioxide sol was immersed in acetone solution with a mass concentration of 1% stearic acid for 10 minutes, and the re...

Embodiment 2

[0020] Example 2: First, slowly add 10 mL of butyl titanate to 20 mL of absolute ethanol under stirring to obtain solution A; stir and mix 1 mL of deionized water, 4 mL of acetic acid and 20 mL of absolute ethanol to obtain solution B; Solution A was slowly added to solution B within 3 hours and kept stirring, and then stirred at room temperature for 8 hours to obtain a transparent light yellow nano-titanium dioxide sol; dilute the mass concentration of titanium dioxide in the nano-titanium dioxide sol to 2.0% with absolute ethanol , then the cotton fabric is immersed in the nano-titanium dioxide sol with a mass concentration of 2.0% for 5 minutes, and the excess solution is rolled off by a paddle car, and the excess rate is 70wt%. After repeating the padding process 1 time, the cotton fabric is Bake at 150°C for 2 minutes; soak the cotton fabric after padding with nano-titanium dioxide sol in an ethanol solution with a mass concentration of 1.5% dodecyltrimethoxysilane for 10 ...

Embodiment 3

[0021] Example 3: First, slowly add 7 mL of butyl titanate to 20 mL of absolute ethanol under stirring to obtain solution A; stir and mix 2 mL of deionized water, 6 mL of acetic acid and 20 mL of absolute ethanol to obtain solution B; Solution A was slowly added to solution B within 0.5 hours and kept stirring, and then stirred at room temperature for 15 hours to obtain a transparent light yellow nano-titanium dioxide sol; dilute the mass concentration of titanium dioxide in the nano-titanium dioxide sol to 0.2% with absolute ethanol , and then the cotton fabric is immersed in the nano-titanium dioxide sol of 0.2% for 10 minutes, and the excess solution is rolled off by a paddle car, and the excess rate is 75wt%. After repeating the padding process 1 time, the cotton fabric is Bake at 110°C for 10 minutes; immerse the cotton fabric after padding with nano-titanium dioxide sol in an ethanol solution with a mass concentration of 0.5% dodecyltriethoxysilane for 10 minutes, remove ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the field of water repellent finishing and processing of fabric, and particularly relates to freon-free super hydrophobic UV resistant cotton fabric and a method for preparing the same. The freon-free super hydrophobic UV resistant cotton fabric is prepared by padding a fabric with nanometer titanium dioxide sol and processing the fabric by using a long-chain freon-free alkyl compound. The titanium dioxide content of the titanium dioxide sol is 0.2 to 5.0 weight percent, and the number of long-chain carbon atoms of the long-chain freon-free alkyl compounds is 6 to 18. The contact angle between the prepared cotton fabric and water drops is over 150 degrees, so that the cotton fabric has a super hydrophobic property; and the UV resistant factor of the prepared cotton fabric is over 50+, so that the cotton fabric has high UV resistance.

Description

technical field [0001] The invention belongs to the field of water-repellent finishing and processing of textiles, in particular to a fluorine-free superhydrophobic anti-ultraviolet cotton fabric and a preparation method thereof. Background technique [0002] Super-hydrophobic anti-ultraviolet functional textiles not only have important applications in industrial production, medical and military products, but also have a wide range of applications in daily life, such as sunny and rainy life umbrellas, beach umbrellas, advertising umbrellas, open-air tents, advertising flags and Advertising fabrics, etc. [0003] In order to utilize the self-cleaning effect of the superhydrophobic surface, Chinese patent CN 1242114C discloses nano self-cleaning cashmere or products and its preparation method, Chinese patent CN 1277019C discloses nano self-cleaning silk and products, and Chinese patent CN 1824884A discloses nano-functional The preparation method of the self-cleaning suit fabr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M11/46D06M13/188D06M13/513D06M13/517D06M101/06
Inventor 薛朝华贾顺田
Owner SHAANXI UNIV OF SCI & TECH
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