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

Method used

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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

Example Embodiment

[0030] Example 1

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

[0032] (2) Place the weighed 50mg grape polyphenols and 25mg folic acid in 50mL 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 tris Is 8.5 to obtain a treatment solution.

[0033] (3) The washed and dried cotton fabric obtained in step (1) is immersed in a hydrogen peroxide solution at a bath ratio of 1:30, and the hydrogen peroxide concentration is 2mL / L, with hydrochloric acid and tris buffer solution Adjust the pH 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 configured in step (2) at a bath ratio of 1:30, and react at 70°C and a pH of 8.5 for 2 hours;

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

Example Embodiment

[0041] Example 2

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

[0043] (2) Place the weighed 100mg grape polyphenols and 70mg 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 tris The pH was 8.5, and the treatment liquid was obtained.

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

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

[0046] (5) Measure 70mL of absolute ethanol and 30mL of deionized water and mix them in a beaker,...

Example Embodiment

[0049] Example 3

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

[0051] (2) Put 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 uniform solution, and adjust the pH of the solution with appropriate amount of hydrochloric acid and tris Is 8.5 to obtain a treatment solution.

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

[0053] (4) Take out the activated cotton fabric, add it to the reaction solution configured in step (2) at a bath ratio of 1:20, and react at 70°C and a pH of 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....

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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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