Lyophobic cotton fabric as well as preparation method and application thereof

A technology of cotton fabric and water cotton, applied in the field of hydrophobic cotton fabric and its preparation, can solve the problems of complex preparation process, expensive raw materials, difficult to degrade, etc., and achieve the effect of simple preparation method, low raw material cost and high separation efficiency

Active Publication Date: 2018-04-20
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of environment and sustainable development, there are many defects in the existing methods: such as the use of complex processes, organic solvents and fluorine-containing substances (generally toxic and difficult to degrade), expensive raw materials, etc.
[0004] In recent years, the research on materials for oil-water separation is very extensive, but the current oil-water separation materials are expensive, the preparation process of the material itself is complicated, and the separation efficiency is still insufficient, and the separation process wastes energy. Therefore, the research can be continuous and efficient oil-water separation Technology has high application value in practical application

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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  • Lyophobic cotton fabric as well as preparation method and application thereof
  • Lyophobic cotton fabric as well as preparation method and application thereof
  • Lyophobic cotton fabric as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 4×4cm 2 Immerse the cotton fabric in the aqueous solution (100ml), add 1.25g of ferrous sulfate heptahydrate, then place it in a water bath at 75°C, keep it warm for 10min, add 0.15g of tea polyphenols, without adjusting the pH value, keep warm and stir gently for 30min (stirring speed is about 100 rpm), take out the cotton fabric, wash it with deionized water, and place it in an oven at 75° C. to dry for 25 minutes to obtain a superhydrophobic cotton fabric.

[0040] figure 1 It is the scanning electron microscope picture of the superhydrophobic cotton fabric prepared in this embodiment. Figure a-c is the high-magnification scanning electron microscope picture of the original cotton fabric. It can be clearly seen from the figure that the surface of the original cotton fiber is very smooth, almost without obvious convex and the contact angle to water is 0°; d-f are high-magnification scanning electron microscope images of the finished cotton fabric. It can be clearly s...

Embodiment 2

[0042] 4×4cm 2 Immerse the cotton fabric in the aqueous solution (100 ml), add 3g of ferrous sulfate heptahydrate, then place it in a water bath at 75°C, keep it warm for 5min, add 0.2g of chlorogenic acid, phosphate buffer or Tris-HCl buffer to adjust The pH value is about 3, keep warm and gently stir for 120 minutes (stirring speed is about 300 rpm), take out the cotton fabric, wash it with deionized water, and dry it in an oven at 60°C for 30 minutes to obtain a superhydrophobic cotton fabric.

[0043] Test the hydrophobic performance of the superhydrophobic cotton fabric obtained above under various extreme environmental conditions, the specific method is as follows:

[0044] The obtained superhydrophobic cotton fabric is soaked in different liquids and measures its contact angle after 12h; Or

[0045] Measure the contact angle of the superhydrophobic cotton fabric after being treated at 200°C or -196°C for 1 hour; or

[0046] Measure its contact angle after irradiating th...

Embodiment 3

[0054] 4×4cm 2 Immerse the cotton fabric in the aqueous solution (100 ml), add 1g of ferrous sulfate heptahydrate, then place it in a water bath at 60°C, keep it warm for 7min, add 0.1g of ferulic acid, phosphate buffer or Tris-HCl buffer to adjust The pH value is about 5, keep warm and gently stir for 60 minutes (stirring speed is about 250 rpm), take out the cotton fabric, wash it with deionized water, and dry it in an oven at 75°C for 15 minutes to obtain a superhydrophobic cotton fabric.

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 relates to a preparation method of a lyophobic cotton fabric. The preparation method comprises the following step: soaking a cotton fabric into water, putting ferrite into the water to react for 1-20 minutes, further adding plant polyphenol into the mixture, performing a reaction for 15-320 minutes under a condition that the pH value is 3-10, thereby obtaining the lyophobic cotton fabric. The invention further provides the lyophobic cotton fabric made by using the preparation method. The invention further discloses application of the lyophobic cotton fabric made by using the preparation method in oil-water separation. The method provided by the invention is simple, environmentally friendly and efficient and gentle in reaction conditions, and the prepared lyophobic cotton fabric has a stable lyophobic property in various environments, and can be applied to the field of oil-water separation.

Description

technical field [0001] The invention relates to the field of textiles and the technical field of oil-water separation, in particular to a hydrophobic cotton fabric and its preparation method and application. Background technique [0002] In nature, many superhydrophobic materials have a contact angle greater than 150°, the most common being lotus leaves and mosquito eyes. At present, superhydrophobic materials have been applied in many fields, such as oil-water separation, drag reduction, self-cleaning and antifouling, etc. Many methods have been used to simulate superhydrophobic surfaces, such as vapor deposition, plasma etching, sol-gel method, and dipping method. However, from the perspective of environment and sustainable development, there are many defects in the existing methods: such as the need for complex processes, the use of organic solvents and fluorine-containing substances (generally toxic and difficult to degrade), expensive raw materials, etc. Therefore, th...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/56D06M11/28D06M13/238B01D17/022D06M101/06
CPCB01D17/0202D06M11/28D06M11/56D06M13/238D06M2101/06D06M2200/12
Inventor 周青青邢铁玲陈国强
Owner SUZHOU UNIV
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