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Method for preparing nano grain film biphobic coating by normal pressure medium barrier discharge polymerization

A technology of dielectric barrier discharge and nano particles, which is applied in coatings and devices for coating liquid on the surface, etc., can solve the problems of high cost, unfavorable large-scale production, and no research reports, etc., achieve low energy consumption, overcome the principle of fabric It has a great effect on performance and good hydrophobic effect

Inactive Publication Date: 2003-08-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Films with field emission effects, photoluminescence properties, air resistance effects, oil and water repellency properties, etc. can be prepared, but the current commonly used vacuum coating method itself has high equipment costs and is not conducive to continuous large-scale industrial production
However, there are no research reports on textiles or other matrix materials.

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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  • Method for preparing nano grain film biphobic coating by normal pressure medium barrier discharge polymerization
  • Method for preparing nano grain film biphobic coating by normal pressure medium barrier discharge polymerization
  • Method for preparing nano grain film biphobic coating by normal pressure medium barrier discharge polymerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Clean the cotton fabric sample and place it in the electrode discharge reaction zone of the dielectric (alumina) barrier discharge reactor. Argon and Monomer CF 4 The mixing ratio is 300:1, mixed to form a reaction gas, the flow rate of the reaction gas is 0.32SLM, the power is 11kw, and the discharge treatment is carried out at normal pressure and room temperature, and the treatment time is 1 minute. Table 1 and Table 2 compare the contact angle, fabric moisture permeability and hand comfort of the obtained atmospheric pressure plasma coating on the cotton fabric with the vacuum coating and Scotchgard commercial waterproof finishing agent.

[0036] Table 1. Comparison of fabric contact angle, fabric moisture permeability rate and moisture permeability index

[0037] Contact angle (degrees) Moisture permeability rate Coating type Moisture permeability index

[0038] Water Glycerin α-bromonaphthalene (g / min.cm 2 ) Atmospheric pressu...

Embodiment 3

[0042] Clean the fabric and fiber samples, place them in the electrode discharge reaction zone of the dielectric (alumina) barrier discharge reactor, neon gas and monomer C 6 f 6 The mixing ratio is 500:1, the flow rate of the mixed reaction gas is 0.2SLM, the power is 10kw, and the discharge treatment is carried out at normal pressure and room temperature. The electron microscope observation picture of the fabric and fiber for 6 minutes is shown in image 3 with Figure 4 , showing that the coating is a nanoparticle stacked film with a porous structure, which provides a certain roughness to the surface and contributes to the improvement of hydrophobicity and oleophobicity.

Embodiment 4

[0044] The glass sheet and the cotton fabric sample are cleaned, placed in the electrode discharge reaction zone of the dielectric (quartz glass) barrier discharge reactor, helium and monomer C 8 f 18 The mixing ratio is 500:1, the flow rate of the mixed reaction gas is 0.8SLM, and the power is 10kw. The glass sheet and cotton fabric are discharged at normal pressure and room temperature. The treatment time is 30 seconds. For photos of standing water drops, see Figure 5 with Image 6 , the water drops can last until the natural complete volatilization.

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 normal pressure medium barrier discharge polymerization coating layer can be used for oil-and-water repellent finish of fabric, fibre, plastic film, glass, ceramics and other matrix. It is characterized by that the fluorine and carbon gas monomers are excited by means of medium blocked discharge to implement monomer polymerization at normal pressure and room temp., so that a layer of thinnesthydrophobic and oleophobic film with nano granule membrane structure is coated on the surface of matrix material. It can make the contact angles of cotton fabric surface water (or glycerine) and alpha-bromonaphthalene respectively be about 130 deg. and 120 deg., and make the surface static water pearl can be retained until it is naturally and completely volatilized, its GB / T4745 spray rating can be reached to average two-grade.

Description

technical field [0001] The invention relates to a plasma discharge polymerization coating method, in particular to a method for preparing an amphobic coating of a nanoparticle film by plasma dielectric barrier discharge polymerization under normal pressure. Background technique [0002] Water and oil repellent biphobic fabric is an important content of functional fabric research. It can not only meet the needs of various sports and clothing equipment, but also has great significance in reducing environmental pollution caused by cleaning and washing. At present, there are roughly chemical coatings, physical coatings, plasma coatings, etc. in coating methods. Some functional films of fluoride, silicide, polyurethane and other compounds can be obtained by chemical coating. However, the chemical coating method often adopts the conventional chemical finishing process of padding and baking, and grafts the water repellent agent to the surface of the fiber under the action of high ...

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): B05D1/00
Inventor 张菁郭颖杨沁玉周荣铭
Owner DONGHUA UNIV
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