Method for preparing superhydrophobic cotton textile by thiol-ene click chemistry modification

A technology of super-hydrophobic cotton and chemical modification, applied in textiles and papermaking, wear-resistant fibers, light-resistant fibers, etc., can solve problems such as complex and cumbersome production methods, troublesome actual manufacturing, and damage to the ecological environment, and achieve improved roughness , good acid and alkali resistance, and the effect of improving hydrophobicity

Active Publication Date: 2020-05-22
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many ways to manufacture superhydrophobic surfaces, such as sol-gel method, chemical vapor deposition method, layer-by-layer self-assembly, etching method, plasma technology, electrochemical and other methods, although these methods are very effective and have certain advantages. Persistence, but most of the production methods are complex and cumbersome, causing troubles to the actual production, and most of the methods use fluorine-containing reagents, which destroy the ecological environment. Therefore, a simple, environmentally friendly and cheap method of manufacturing superhydrophobic is urgently needed at present.

Method used

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  • Method for preparing superhydrophobic cotton textile by thiol-ene click chemistry modification
  • Method for preparing superhydrophobic cotton textile by thiol-ene click chemistry modification
  • Method for preparing superhydrophobic cotton textile by thiol-ene click chemistry modification

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Step 1, cotton fabric pretreatment: experimental formula: cotton cloth 10cm×10cm, 100°C, soap flakes 2g / L, Na 2 CO 3 5g / L, liquor ratio 1:50, 30min, vacuum drying at 70°C. After drying, take it out, and then use acetone, ethanol, and deionized water to ultrasonically clean the cotton fabric, and use each solvent to ultrasonically clean for 15 minutes. After cleaning, take out the cloth sample and dry it.

[0031] Step 2, cotton fabric modification treatment: put the pretreated cotton fabric into a dyeing cylinder, add 0.3mL MPTES, and react in an infrared dyeing machine at 90°C for 90min. Take out the cloth sample, put it in a Erlenmeyer flask, add 100mL of absolute ethanol to clean it, place it in a shaking sample machine at 25°C for 4 hours, take it out, wash it with deionized water, and dry it under vacuum at 80°C.

[0032] Step 3. Cotton fabric modified by mercapto-ene click chemistry hydrophobization: Cut the modified cotton fabric into a 5cm×5cm sample, remove ...

Embodiment 2

[0034] Step 1, cotton fabric pretreatment: experimental formula: cotton cloth 10cm×10cm, 100°C, soap flakes 2g / L, Na 2 CO 3 5g / L, bath ratio 1:50, 30min, vacuum drying at 70°C. After drying, take it out, and then use acetone, ethanol, and deionized water to ultrasonically clean the cotton fabric, and use each solvent to ultrasonically clean for 15 minutes. After cleaning, take out the cloth sample and dry it.

[0035] Step 2, cotton fabric modification treatment: put the pretreated cotton fabric into a dyeing cylinder, add 0.3mL MPTES, and react in an infrared dyeing machine at 90°C for 90min. Take out the cloth sample, put it in a Erlenmeyer flask, add 100mL of absolute ethanol to clean it, place it in a shaking sample machine at 25°C for 4 hours, take it out, wash it with deionized water, and dry it under vacuum at 80°C.

[0036] Step 3. Cotton fabric modified by mercapto-ene click chemistry hydrophobization: Cut the modified cotton fabric into a 5cm×5cm sample, remove th...

Embodiment 3

[0042] Step 1, cotton fabric pretreatment: experimental formula: cotton cloth 10cm×10cm, 100°C, soap flakes 2g / L, Na 2 CO 3 5g / L, bath ratio 1:50, 30min, vacuum drying at 70°C. After drying, take it out, and then use acetone, ethanol, and deionized water to ultrasonically clean the cotton fabric, and use each solvent to ultrasonically clean for 15 minutes. After cleaning, take out the cloth sample and dry it.

[0043] Step 2, cotton fabric modification treatment: put the pretreated cotton fabric into a dyeing cylinder, add 0.3mL MPTES, and react in an infrared dyeing machine at 90°C for 90min. Take out the cloth sample, put it in a Erlenmeyer flask, add 100mL of absolute ethanol to clean it, place it in a shaking sample machine at 25°C for 4 hours, take it out, wash it with deionized water, and dry it under vacuum at 80°C.

[0044] Step 3. Cotton fabric modified by mercapto-ene click chemistry hydrophobization: Cut the modified cotton fabric into a 5cm×5cm sample, remove th...

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Abstract

The invention discloses a method for preparing a superhydrophobic cotton textile by thiol-ene click chemistry modification. The method comprises the following steps of Step 1, pretreating cotton fabrics so that thiol groups are introduced to the fiber surfaces; Step 2, grafting thiol silane onto the surfaces of the pretreated cotton fabrics; and Step 3, soaking the cotton fabrics grafted with thethiol silane into a mixed solution prepared from ethyl acetate, 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane, octadecanethiol and benzoin dimethyl ether to take a reaction through UV irradiation, and after the reaction is completed, performing cleaning and drying to obtain the superhydrophobic cotton textile. The invention also discloses the superhydrophobic cotton textile prepared bythe method. The superhydrophobic cotton textile prepared by the method provided by the invention has the advantages that hydrophobic substances are grafted onto the surfaces of the fabrics in a chemical bond form; and the performance of resisting acid, alkali, water washing, friction, UV irradiation and the like of the superhydrophobic textiles can be improved.

Description

technical field [0001] The invention relates to the technical field of functional textiles, in particular to a superhydrophobic fabric and a preparation method thereof. Background technique [0002] Cotton is an abundant and readily available natural polymer on earth, and cotton fabrics are widely used in various industries. However, because cotton fabric contains a large number of hydrophilic hydroxyl groups, cotton is easily polluted and often soaked by water, which limits the use of cotton to a certain extent. The preparation of superhydrophobic cotton is also a topic worthy of research. Superhydrophobic surfaces are also used in the fields of self-cleaning, oil-water separation, anti-corrosion and anti-fog surfaces, so the preparation of superhydrophobic cotton fabrics will broaden the application range of cotton fabrics. [0003] There are two conditions for constructing a superhydrophobic surface, one is to reduce the surface energy of the surface, and the other is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/08D06M13/513D06M11/76D06M13/188D06M101/06
CPCD06M10/08D06M13/513D06M11/76D06M13/188D06M2101/06D06M2200/12D06M2200/25D06M2200/35
Inventor 陈国强王宝亮
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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