Broad-spectrum antibacterial and antiviral textile based on graft copolymerization of double-long-chain ionic liquid structural monomer and preparation method of broad-spectrum antibacterial and antiviral textile

An ionic liquid and textile technology, applied in the field of textiles, can solve the problems of unsustainable antibacterial and antiviral functions, narrow antibacterial and antiviral range, weak binding fastness between antibacterial and antiviral functional groups/particles and textiles, etc. The effect of large-scale production, strong bond fastness and low cost

Pending Publication Date: 2022-08-09
水木聚力接枝新技术(深圳)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of narrow antibacterial and antiviral scope in the above-mentioned prior art, weak combination fastness between antibacterial and antiviral functional groups / particles and textiles, and unsustainable antibacterial and antiviral functions, the present invention provides a double-long-chain ionic liquid based Monomer graft copolymerized broad-spectrum antibacterial and antiviral textiles and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Preparation of methacryloyloxyethyldidecylmethylammonium chloride grafted with cotton cloth irradiation solution

[0024] corresponds to the general structural formula The structural formula of the methacryloyloxyethyl didecyl methyl ammonium chloride of the present embodiment is:

[0025] An aqueous solution of methacryloyloxyethyldidecylmethylammonium chloride with a mass percentage concentration of 40% was prepared. The pure cotton cloth is cut into a suitable size, and the above-mentioned aqueous solution of methacryloyloxyethyl didecylmethyl ammonium chloride is evenly rolled on the surface of the cotton cloth by padding, and then the cotton cloth is placed in an irradiation tube, and the Deoxygenate with nitrogen for 20 minutes, seal, and irradiate 50 kGy with cobalt 60 source gamma rays at room temperature. The irradiated cotton cloth was extracted with water as solvent for 48 hours in a Soxhlet extractor to remove unreacted monomers and homopolyme...

Embodiment 2

[0031] Example 2 Preparation of chemically initiated emulsion binary co-grafting 1-perfluorohexyl-2-dodecyl-3-vinylimidazole tetrafluoroborate and hydroxyethyl acrylate for real silk fabrics

[0032] In order to enhance the hydrophilicity and softness of graft-modified antibacterial and antiviral textiles, the hydrophilic monomer hydroxyethyl acrylate and the antibacterial and antiviral functional monomer 1-perfluorohexyl-2-dodecyl-3- Binary co-grafting with vinylimidazole tetrafluoroborate. Using toluene as the dispersed phase and sorbitan stearic fatty acid ester as the emulsifier, it is prepared into hydroxyethyl acrylate and 1-perfluorohexyl-2-dodecyl-3-vinylimidazole under high shear stirring Water-in-oil emulsion of tetrafluoroborate (the mass ratio of the two is 1:3) in toluene. Immerse a 5×5cm silk cloth in the emulsion, add potassium persulfate as an initiator, pass nitrogen and deoxygenate for 20 minutes, seal the container, heat to 60°C to initiate the graft polyme...

Embodiment 3

[0037] Example 3 Preparation of 1-hexyl-2-octyl-3-vinyl pyridine chloride by UV light-initiated solution grafting of polyester fabric

[0038] Cut the polyester fabric to an appropriate size, soak it in the acetone solution of benzophenone for 20 minutes, then take out the polyester fabric, and volatilize the acetone in a ventilated place, so that the benzophenone is evenly dispersed on the surface of the polyester fabric. Subsequently, a 10% aqueous solution of 1-hexyl-2-octyl-3-vinylpyridine chloride was sprayed on the surface of the polyester fabric. The polyester fabric was transferred to a sealable quartz container, deoxygenated with nitrogen for 20 minutes, sealed, and irradiated under an ultraviolet lamp with a wavelength of 256 nm to initiate the graft polymerization reaction, and the reaction was terminated after 30 minutes with oxygen.

[0039] The graft ratio of 1-hexyl-2-octyl-3-vinylpyridine chloride salt measured by weighing method was 6.9%.

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Abstract

The invention relates to a broad-spectrum antibacterial and antiviral textile based on double-long-chain ionic liquid structure monomer graft copolymerization, which comprises a textile and at least one organic monomer, the organic monomer is grafted and copolymerized onto the textile, the organic monomer is an organic monomer containing a double-long-chain ionic liquid structure, the organic monomer is represented by a general formula, wherein A is an organic group containing a carbon-carbon double bond, C is a cationic group of the ionic liquid, X is an organic group or an organic chain segment connecting A and C through a covalent bond, B1 and B2 are hydrophobic chain segments connected with C through covalent bonds respectively, and D is an anionic group of the ionic liquid. The invention also relates to a preparation method of the broad-spectrum antibacterial and antiviral textile. According to the broad-spectrum antibacterial and antiviral textile disclosed by the invention, functional groups with antibacterial and antiviral effects are firmly combined to the textile in a covalent bond manner, so that the broad-spectrum antibacterial and antiviral textile has excellent washing resistance and abrasion resistance and is lasting in function.

Description

technical field [0001] The invention relates to textiles, and more particularly to a broad-spectrum antibacterial and antiviral textile based on the graft copolymerization of double long-chain ionic liquid structural monomers and a preparation method thereof. Background technique [0002] Infectious diseases caused by pathogenic microorganisms, such as pathogenic bacteria or viruses, have long been a major threat to human health. With the improvement of living standards and the advancement of transportation technology, the scope of human activities is larger and the contact is more frequent. The spread and outbreak of major infectious diseases occur from time to time, such as influenza, pneumonia caused by coronavirus and other diseases. Huge damage to public health and socioeconomic life. [0003] The most effective way to prevent the spread of infectious diseases is isolation. Preventing pathogenic bacteria or viruses from contacting the human body is an important measur...

Claims

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Application Information

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IPC IPC(8): D06M14/22D06M14/24D06M14/32D06M14/30D06M14/28D06M14/34
CPCD06M14/22D06M14/24D06M14/32D06M14/30D06M14/28D06M14/34D06M16/00D06M2200/35Y02P20/54
Inventor 李景烨虞鸣王自强张伯武
Owner 水木聚力接枝新技术(深圳)有限责任公司
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