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Super-hydrophobic textile and preparation method thereof

A super-hydrophobic, fabric technology, applied in the fields of plant fibers, textiles and papermaking, medical science, etc., can solve the problems of cumbersome preparation process, complex nanoparticle/polymer process, difficult industrial production, etc., and achieve fast preparation process and abundant output. , easy to operate effect

Inactive Publication Date: 2013-04-24
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many existing technologies for preparing superhydrophobic fabrics, but there are cumbersome preparation processes, addition of nanoparticles / polymers, complex processes and difficult industrial production.

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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  • Super-hydrophobic textile and preparation method thereof
  • Super-hydrophobic textile and preparation method thereof
  • Super-hydrophobic textile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, preparation possesses the superhydrophobic fabric of mesh structure

[0031] Dissolve 0.5g of paraffin in 36mL of n-heptane to obtain a solution. In this solution, the mass ratio of paraffin to n-heptane is 1:50. A piece of cotton fabric with a mesh size of 100 mesh is soaked in the solution; keep soaking for 24 hours Take it out and dry it quickly with hot air to get a fabric with super-hydrophobic (blood) properties.

[0032] The scanning electron micrographs of the superhydrophobic fabric prepared in this embodiment and the unmodified raw material fabric used are as follows figure 1 As shown, it can be known from the figure that the surface of the modified fabric fiber is wrapped with wax, which reduces the surface free energy of the fabric. superhydrophobicity.

[0033] Determination of the blood adsorption capacity of the superhydrophobic fabric prepared in this example: take the superhydrophobic fabric (cotton fabric), weigh its initial weight, the...

Embodiment 2

[0035] Embodiment 2, preparation possesses the superhydrophobic fabric of mesh structure

[0036] Dissolve 2.5g of paraffin in 35mL of n-hexane to obtain a solution. In this solution, the mass ratio of paraffin to n-hexane is 1:9. Soak a piece of cotton fabric with a mesh size of 200 mesh in the solution, keep it for 10min, and then take it out. Rapid drying with hot air results in fabrics with superhydrophobic (blood) properties.

[0037] The static contact angle photos of the superhydrophobic fabric prepared in this embodiment to water and blood are as follows image 3 As shown, among them, the left figure is the static contact angle for water, and the right figure is the static contact angle for blood.

[0038] The photos of blood on the fabric prepared in this embodiment and the surface of unmodified fabric are as follows: Figure 4 shown by image 3 and Figure 4 It can be known that the contact angle of the superhydrophobic modified fabric to water is 155°, and the c...

Embodiment 3

[0040] Embodiment 3, preparation possesses the superhydrophobic fabric of mesh structure

[0041] Dissolve 0.35g of paraffin in 32mL of cyclohexane to obtain a solution. In this solution, the mass ratio of paraffin to cyclohexane is 1:70. Soak a piece of cotton and linen fabric with a mesh size of 50 mesh in the solution and keep it for 1min. Take it out and use natural drying to get a fabric with super-hydrophobic (blood) properties.

[0042] Measure the superhydrophobic fabric prepared in this embodiment to the adsorption capacity of blood, and the measuring method is the same as that in Example 1, and the change curve of the unit weight gain of the fabric in blood with the soaking time is as follows: Figure 6 shown. Depend on Figure 6 It can be seen that compared with the unmodified fabric, the superhydrophobic modified fabric has much less blood adsorption per unit weight within a certain period of time, and has obvious hemophobic ability, which can be applied to preve...

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 discloses a super-hydrophobic textile and a preparation method thereof. The preparation method comprises the following steps of dissolving wax into an organic solvent to obtain a solution; dipping the textile into the solution, and taking out the textile from the solution, and drying the textile to obtain the super-hydrophobic textile. Any textile with a mesh structure is subjected to super-hydrophobic (blood) modification by a direct immersion method. A convex liquid level is formed by the blood at the interface of the bleeding position because of super-hydrophobic (blood) property; certain additional pressure is generated, so that the blood does not easily flow outside. Therefore, the preparation method can be used for preparing a hemostatic material or an impermeable blood material.

Description

technical field [0001] The invention relates to a superhydrophobic fabric and a preparation method thereof. Background technique [0002] Superhydrophobicity refers to a special surface phenomenon in which the apparent contact angle of water on the surface is greater than 150°. In recent years, superhydrophobic surfaces have broad application prospects in self-cleaning materials, building materials, microfluidic devices, medical supplies, and biomaterials. Examples in nature include lotus leaves and other plant leaf surfaces, animal feathers, water strider legs, butterfly wings and other insect surfaces. Water droplets can roll freely on these surfaces and take away the dust and other pollutants attached to the surface, thus making the surface keep clean. If this self-cleaning material is used in daily life and industrial production, its significance will be very significant. [0003] Fabric finishing is a chemical and physical process that endows fabrics with special pro...

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): D06M13/02D06M15/01D06M15/227A61L31/14A61L31/04D06M101/06D06M101/32
Inventor 斯芳芳张小莉赵宁徐坚费昌沛
Owner INST OF CHEM CHINESE ACAD OF SCI
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