Fabric super-hydrophobic surface preparation method

A super-hydrophobic surface and fabric technology, which is applied in the field of fabric super-hydrophobic surface preparation, can solve the problems of poor durability and super-hydrophobic fabrics that cannot satisfy both super-hydrophobicity and water pressure resistance, and achieve excellent chemical stability and mechanical durability. , good water pressure resistance and air permeability

Active Publication Date: 2019-06-04
HEBEI BENFA GARMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that existing superhydrophobic fabrics cannot simultaneously satisfy superhydrophobicity, water pressure resistance and poor durability, the present invention provides a method for preparing superhydrophobic fabrics

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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  • Fabric super-hydrophobic surface preparation method
  • Fabric super-hydrophobic surface preparation method
  • Fabric super-hydrophobic surface preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of preparation method of superhydrophobic surface of cotton fabric:

[0044] Step 1. Measure di-n-octyltin dilaurate and silane coupling agent at a volume ratio of 1:3, and stir and mix for 30 minutes at 25°C and 500 r / min to obtain a crosslinking agent;

[0045] Step 2. Measure polydimethylsiloxane, hydroxyl polydimethylsiloxane and polymethylhydrogensiloxane according to the volume ratio of 2:1:1, and mix them uniformly to obtain a polymethylsiloxane mixture ; Measure the polymethylsiloxane mixture and crosslinking agent according to the volume ratio of 9.5:1, place them in a beaker, stir them magnetically for 20 minutes, and let stand at room temperature for 15 minutes to obtain a polysiloxane finishing solution;

[0046]Step 3, evenly spread the cotton fabric with a size of 5cm*5cm, weigh the polysiloxane finishing liquid according to the mass ratio of the polysiloxane finishing liquid and the cotton fabric at 1.3:1, and take the polysiloxane finishing liquid...

Embodiment 2

[0051] A kind of preparation method of superhydrophobic surface of cotton fabric:

[0052] Step 1. Measure di-n-octyltin dilaurate and silane coupling agent according to the volume ratio of 1:2.5, and stir and mix for 30 minutes at 25°C and 500 r / min to obtain a crosslinking agent;

[0053] Step 2: Measure polydimethylsiloxane, hydroxypolydimethylsiloxane and polymethylhydrogensiloxane according to the volume ratio of 1.8:1:1, and mix them uniformly to obtain a polymethylsiloxane mixture ; Measure the polymethylsiloxane mixture and the crosslinking agent according to the volume ratio of 9:1, place them in a beaker, stir them magnetically for 20 minutes, and let stand at room temperature for 15 minutes to obtain a polysiloxane finishing solution;

[0054] Step 3, spread the cotton fabric with a size of 5cm*5cm evenly, weigh the polysiloxane finishing liquid according to the mass ratio of the polysiloxane finishing liquid and the cotton fabric at 1:1, and mix the polysiloxane T...

Embodiment 3

[0059] A kind of preparation method of superhydrophobic surface of cotton fabric:

[0060] Step 1. Measure di-n-octyltin dilaurate and silane coupling agent according to the volume ratio of 1:3.5, and stir and mix for 30 minutes at 25°C and 500 r / min to obtain a crosslinking agent;

[0061] Step 2. Measure polydimethylsiloxane, hydroxypolydimethylsiloxane and polymethylhydrogensiloxane according to the volume ratio of 2.2:1:1, and mix them uniformly to obtain a polymethylsiloxane mixture ; Measure the polymethylsiloxane mixture and the crosslinking agent according to the volume ratio of 10:1, place them in a beaker, stir them magnetically for 20 minutes, and let stand at room temperature for 15 minutes to obtain a polysiloxane finishing solution;

[0062] Step 3, evenly spread the cotton fabric with a size of 5cm*5cm, weigh the polysiloxane finishing liquid according to the mass ratio of the polysiloxane finishing liquid and the cotton fabric at 1.5:1, and mix the polysiloxane...

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 provides a fabric super-hydrophobic surface preparation method. The method at least includes steps: well mixing polydimethylsiloxane, hydroxyl polydimethylsiloxane, polymethylhydrosiloxane and a cross-linking agent to obtain polysiloxane finishing liquid; coating the fabric surface with the polysiloxane finishing liquid, and uniformly spreading a layer of sodium chloride particles onthe fabric surface to obtain a deposited coating; curing the deposited coating, subjecting the cured fabric to water-bath ultrasonic treatment, and drying to form the fabric super-hydrophobic surface. A super-hydrophobic fabric prepared according to the method is excellent in chemical stability and mechanical durability and has great water pressure resistance and breathability, a static contact angle of the super-hydrophobic surface reaches 155.47 degrees, a rolling angle is 5.5 degrees, breathability reaches 90.06mm/s, water pressure resistance reaches 2733Pa, and hydrophobicity of the fabric is almost unchanged after repeated washing and wear.

Description

technical field [0001] The invention relates to the technical field of preparation of superhydrophobic materials, in particular to a method for preparing a superhydrophobic surface of a fabric. Background technique [0002] In recent years, inspired by biomimicry, superhydrophobic surfaces have attracted the interest of a large number of researchers. Superhydrophobic surface has broad application prospects in self-cleaning, anti-fog, anti-icing, anti-fouling, anti-corrosion, drag reduction and other fields, and is an important surface protection technology. A superhydrophobic surface generally refers to a surface with a static contact angle of greater than 150° and a rolling angle of less than 10° with water. The surface of the lotus leaf is the most representative superhydrophobic surface. The property that water droplets cannot be wetted on superhydrophobic surfaces makes superhydrophobic surfaces widely used in many fields such as daily life and industrial production. H...

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): D06M15/643D06M10/06D06M101/06
Inventor 张维姚继明皇甫志杰
Owner HEBEI BENFA GARMENT CO LTD
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