Self-cleaning and self-healing coating material for fabric and method for preparing self-cleaning and self-healing coating for fabric

A coating material and self-cleaning technology, applied in the coating material for fabric, self-cleaning and self-repairing coating material for fabric, the field of preparing self-cleaning and self-repairing coating, which can solve the problems of inability to recycle and repair physical damage, etc.

Active Publication Date: 2020-07-07
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: Aiming at the problems that existing fabric coating materials cannot repair physical damage and cannot be recycled, the present invention provides a self-cleaning and self-repairing coating material for fabrics that can repair physical / chemical damage and can be recycled. Also provided is a method of using the coating material to prepare a self-cleaning and self-repairing coating for fabrics

Method used

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  • Self-cleaning and self-healing coating material for fabric and method for preparing self-cleaning and self-healing coating for fabric
  • Self-cleaning and self-healing coating material for fabric and method for preparing self-cleaning and self-healing coating for fabric
  • Self-cleaning and self-healing coating material for fabric and method for preparing self-cleaning and self-healing coating for fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Heat 20g epoxy resin in an oven at 60~100℃ for 10min;

[0029] 2. Mix 20g of epoxy resin with 2.853g of furfurylamine, then add 35g of organic solvent N,N-dimethylformamide to help dissolve; and react at 90°C in an oil bath for 6h to obtain a mixture of prepolymer I and solvent liquid;

[0030] 3. Mix 3g of poly(dimethylsiloxane) diglycidyl ether end-capped with 0.182g of furfurylamine, and then add 5g of organic solvent N,N-dimethylformamide to help dissolve; and in an oil bath at 90℃ React for 6 hours to obtain a mixture of prepolymer II and solvent;

[0031] 4. Mix the prepolymer I and the prepolymer II obtained in steps 2 and 3 in a mass ratio of 95:5, and then mix 24.049g and 1.286g of the prepolymer mixture (wherein the prepolymer I and The mass of prepolymer II is 9.5g and 0.5g respectively), and after mixing, 1.215g of furfurylamine is added, and then 3g of organic solvent N,N-dimethylformamide is added to help dissolve; and react under 90℃ oil bath 6h, obtain a ...

Embodiment 2

[0042] The self-cleaning and self-healing coating for fabrics was prepared by referring to the method of Example 1. The difference is that the mass ratio of epoxy resin and furfurylamine in step 2 is 10:1, and 20g and 2g are taken respectively.

Embodiment 3

[0044] Refer to the method of Example 1 to prepare the self-cleaning and self-healing coating for fabrics, the difference is: in step 3, the mass ratio of poly(dimethylsiloxane) diglycidyl ether end cap and furfurylamine is 20:1, each 3g and 0.15g.

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PUM

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Abstract

The invention discloses a self-cleaning self-repairing coating material for a fabric and a method for preparing the self-cleaning self-repairing coating material for the fabric. The coating material is a mixed solution of silane modified poxy resin prepolymer and a curing agent, wherein the curing agent contains at least two maleimide groups, and the mass ratio of the silane modified poxy resin prepolymer to the curing agent is 2:1-4:1. The coating material not only has the self-cleaning capacity, but also has the self-repairing capacity after heating, and chemical damage repairing and physical wear repairing can be achieved, and the coating material can be recycled. The method for preparing a self-cleaning self-repairing coating for the fabric comprises the following steps that 1, the silane modified poxy resin prepolymer is prepared; 2, the silane modified poxy resin prepolymer and the curing agent are mixed in proportion, and dissolved in the organic solvent, and a coating solutionis obtained; 3, the coating solution is applied to the fabric surface, after automatic leveling, the fabric is put into an oven for solidification, and the self-cleaning self-repairing coating is obtained on the fabric surface.

Description

Technical field [0001] The invention relates to a coating material for fabrics, in particular to a self-cleaning and self-healing coating material for fabrics that can repair physical damage, chemical damage, and is recyclable, and a method for preparing a self-cleaning and self-healing coating. The field of molecular materials. Background technique [0002] Most of the fiber fabrics worn or used in daily life are hydrophilic materials. When stained, it is difficult to be cleaned thoroughly, which affects the appearance of clothing. Since the hydrophobic coating has the functions of self-cleaning, anti-fouling and waterproofing, it has great application prospects in clothing protection and oil-water separation. Since the surface of the hydrophobic coating is susceptible to abrasion and the service life of the coating is reduced, improving the abrasion resistance of the coating has always attracted attention. [0003] Some people have proposed concepts such as self-repair to impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/12D06N3/00
CPCD06N3/0061D06N3/0077D06N3/0088D06N3/128D06N2209/105D06N2209/146Y02P70/62
Inventor 方亮马跃邹雨婷李玲玉陆春华许仲梓
Owner NANJING TECH UNIV
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