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Production method of grape polyphenol modified hydrophobic cotton fabric

A technology of grape polyphenols and cotton fabrics, applied in plant fibers, textiles and papermaking, and liquid-repellent fibers, etc., can solve the problems of low durability and limited varieties of super-hydrophobic fabrics, and achieve high contact angles and conditions Mild, broad-spectrum effect

Active Publication Date: 2019-12-03
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the types of superhydrophobic fabrics prepared by the above method are limited, the durability is not high, or the green environmental protection process needs to be improved.

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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  • Production method of grape polyphenol modified hydrophobic cotton fabric
  • Production method of grape polyphenol modified hydrophobic cotton fabric
  • Production method of grape polyphenol modified hydrophobic cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Wash 1 g of cotton fabric and dry it at 60°C.

[0032] (2) Place 50 mg of grape polyphenols and 25 mg of folic acid weighed in 50 mL of deionized water, mix and stir at 80 degrees Celsius for about 1 hour to obtain a uniform solution, and adjust the pH of the solution with appropriate amount of hydrochloric acid and trishydroxymethylaminomethane was 8.5, and a treatment solution was obtained.

[0033] (3) Immerse the washed and dried cotton fabric obtained in step (1) in a hydrogen peroxide solution with a bath ratio of 1:30, the concentration of hydrogen peroxide is 2mL / L, and the Adjust the pH value to 9, the temperature to 85°C, and the treatment time to be 10 minutes;

[0034] (4) Take out the activated cotton fabric, add it to the reaction solution prepared in step (2) with a bath ratio of 1:30, and react at 70°C and pH 8.5 for 2 hours;

[0035] (5) Measure 70mL of absolute ethanol and 30mL of deionized water and mix them in a beaker, weigh 0.1617g of octadec...

Embodiment 2

[0042] (1) Wash 2g of cotton fabric and dry it at 50°C.

[0043] (2) Put the weighed 100mg of grape polyphenols and 70mg of folic acid in 100mL of deionized water, mix and stir at 50 degrees Celsius, and obtain a uniform solution after about 90 minutes, and adjust the solution with appropriate amount of hydrochloric acid and trishydroxymethylaminomethane The pH was 8.5, and a treatment liquid was obtained.

[0044] (3) Immerse the washed and dried cotton fabric obtained in step (1) in a hydrogen peroxide solution with a bath ratio of 1:30, the concentration of hydrogen peroxide is 3mL / L, and the Adjust the pH value to 8.5, the temperature is 80°C, and the treatment time is 13 minutes;

[0045] (4) Take out the activated cotton fabric, add it to the reaction solution prepared in step (2) with a bath ratio of 1:40, and react at 75°C and pH 9 for 2.5 hours;

[0046] (5) Take 70mL of absolute ethanol and 30mL of deionized water and mix them in a beaker, weigh 0.2156g of octadecyla...

Embodiment 3

[0050] (1) Wash 1 g of cotton fabric and dry it at 50°C.

[0051] (2) Place 75mg of grape polyphenols and 40mg of folic acid weighed in 50mL of deionized water, mix and stir at 50 degrees Celsius for about 90 minutes to obtain a prepared uniform solution, and adjust the pH of the solution with appropriate amount of hydrochloric acid and trishydroxymethylaminomethane was 8.5, and a treatment solution was obtained.

[0052] (3) Immerse the washed and dried cotton fabric obtained in step (1) in a hydrogen peroxide solution with a bath ratio of 1:30, the concentration of hydrogen peroxide is 4mL / L, and the Adjust the pH value to 8.2, the temperature is 75°C, and the treatment time is 9 minutes;

[0053] (4) Take out the activated cotton fabric, add it to the reaction solution prepared in step (2) with a bath ratio of 1:20, and react at 70°C and pH 8.1 for 1.8 hours;

[0054] (5) Measure 70mL of absolute ethanol and 30mL of deionized water and mix them in a beaker, weigh 0.1886g ...

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Abstract

The invention relates to a production method of a grape polyphenol modified hydrophobic cotton fabric. The production method comprises the steps of taking grape polyphenol extracted from waste grape skin as a main reagent, taking nano columnar particles self-assembled by folic acid as a template, grafting the template onto a cotton fabric through oxidative polymerization to form a specific nano structure, and then grafting a low-surface energy substance octadecylamine onto the nano particles through Michael addition to endow the cotton fabric with superhydrophobic performance. The raw materials are environmentally friendly, the process is rapid and simple, and the conditions are mild. The superhydrophobic fabric has high hydrophobic property, has a water contact angle of 150-160 degrees, has good washing durability and can be used in the fields of oil-water separation and the like.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a preparation method of grape polyphenol-modified hydrophobic cotton fabric. Background technique [0002] At present, the recycling rate of waste textiles such as leftovers from textile processing, old clothes and home textiles is low, resulting in a huge waste of resources. At the same time, bionic superhydrophobic surfaces have broad prospects in the textile field. Superhydrophobic / superoleophilic materials have selective adsorption properties for oil and water, and can efficiently self-clean, adsorb and separate oil-water mixtures to solve problems such as oil spills at sea and waste of resources caused by improper disposal of waste textiles, and have become a focus of attention and research. one. Micro-nanostructure and low surface energy are the key to fabricate biomimetic superhydrophobic surfaces. [0003] Polyphenolic compounds are the most import...

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): D06M11/50D06M13/152D06M13/415D06M13/328D06M101/06
CPCD06M11/50D06M13/152D06M13/415D06M13/328D06M2101/06D06M2200/12
Inventor 阮玉婷邢铁玲颜小洁陈国强
Owner SUZHOU UNIV
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