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A composite spinning melt-blown non-woven fabric with antibacterial function and its preparation method and application

A technology of melt-blown non-woven fabric and composite spinning, which is applied in the manufacture of rayon, conjugated synthetic polymer rayon, non-woven fabric, etc. Small scope, complex chemical oxidation modification methods, etc., to achieve stable and long-lasting antibacterial performance, improve load uniformity and stability, and high load uniformity and stability.

Active Publication Date: 2021-07-13
DONGGUAN YIMAO FILTER MEDIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing material surface chemical initiation grafting technology, the chemical oxidation modification method is relatively complicated; the high energy radiation energy of high-energy rays may have an impact on the material body: the modification range of plasma treatment is small, and the cost is high: ultraviolet light Initiation of graft modification reaction is limited to the surface of the polymer and can only be carried out under specific conditions, which limits its wide application

Method used

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  • A composite spinning melt-blown non-woven fabric with antibacterial function and its preparation method and application
  • A composite spinning melt-blown non-woven fabric with antibacterial function and its preparation method and application
  • A composite spinning melt-blown non-woven fabric with antibacterial function and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a composite spun meltblown nonwoven fabric having an antibacterial function, the fibers employed, the core layer is polypropylene, and the cortical component is 2% silver-modified nanometers from mass percent. Zinc oxide composite, 40% mercapto-modified polypropylene nitrile and 58% polypropylene composition.

[0039]The method of preparing the mercapto-modified polypropylene nitrile is: Take 1 g of polyacrylonitrile immersed in methanol solution containing 1 g 4-amino-1- (3-mercapto-propyl) -pyridiniklofluorophosphate ionic liquid. NaOH retained the reaction system to a weak alkaline (pH 7.5-9.0), reacted at 130 ° C; after the reaction was completed, washed out of distilled water to neutral; the preliminary product was soaked with 0.1 mol / l HCI solution. 2H, after removal, washed with distilled water to neutral, and dried to constant weight at 60 ° C, i.e., the mercapto-modified polyacrylonitrile slices.

[0040] The method of preparing the silve...

Embodiment 2-5

[0048] Example 2-5 provides a composite spinning spray nonwoven fabric having an antibacterial function, and is different from the first embodiment, and the mass percentage of each component in the cortex component is changed. It will not be described herein, and the specific experimental parameters and performance test results are shown in the table below.

[0049]

[0050] As can be seen from the above table, the composite spinning spray nonwoven fabric made by the present invention has better antimicrobial properties, washable properties and mechanical strength, and the non-woven fabric made under Example 1 is optimal. . Comparative Examples 1 to 3 As in Example 4, it is understood that the present invention passes through a sulfhydryl group 4-amino-1- (3-mercapto-propyl) -pyridine hexafluorophosphate ion liquid quaternary ammonium salt polymer antibacterial agent Synergistic effects of silver-modified nano-zinc oxide inorganic antibacterial agents, the resulting nonwoven fab...

Embodiment 6-12

[0052] Example 6-12 provides a composite spinning meltblown nonwoven fabric having an antibacterial function, and is different from that of Example 1, in that the process of changing the grafting modification reaction of the agglomerate modified polyacrylonitrile. - Amino-1- (3-mercapto-propyl) - pyridyl hexafluorophosphate ion liquid and the mass ratio of the polypropylene nitrile and / or grafting reaction temperature, the other operations are the same, and will not be described again, specific experimental conditions The parameters and performance test results are shown in the table below.

[0053]

[0054] According to the above table, it is known that the quality of 4-amino-1- (3-mercapto-propyl) -pyridinonitrile and polypropylene ionic nitrile is changed during the graft modified reaction of the aging-modified polyacrylonitrile graft modified reaction. The ratio of composite spun molten nonwoven fabric has better antimicrobial properties, washable performance and mechanica...

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Abstract

The invention discloses a composite spinning melt-blown nonwoven fabric with antibacterial function and its preparation method and application. The fiber used is a skin-core structure, the core layer component is polypropylene, and the skin layer component has a mass percentage of 1 5% silver-modified nano-zinc oxide composite material, 30-49% mercapto-modified polyacrylonitrile and 50-65% polypropylene. In the present invention, the mercapto-containing 4-amino-1-(3-mercapto-propyl)-pyridine hexafluorophosphate ionic liquid is grafted onto polyacrylonitrile through chemical bonding, and then modified with silver by solvent impregnation. Nano-zinc oxide coordination, thereby improving the binding ability of polyacrylonitrile and nano-silver and its loading uniformity and stability, through the synergistic effect of mercapto-containing quaternary ammonium salt polymer antibacterial agents and inorganic antibacterial agents to endow non-toxic The woven fabric has excellent and stable and long-lasting antibacterial performance, and the preparation method of the invention is simple, easy for industrial production, and has broad application prospects.

Description

Technical field [0001] The present invention relates to the field of nonwoven fabric materials, and more particularly to a composite spinning meltblown nonwoven fabric having antibacterial function and a preparation method thereof. Background technique [0002] Polypropylene (PP) fiber nonwoven fabric is widely used in water treatment, air purification, wipe wipes such as environmental protection, but it is easily infected by bacterial or fungi, causing infection and disease spread. In order to prevent microorganisms of the polypropylene surface, antibacterial treatment is performed in an in-depth study. [0003] The currently widely used antibacterial treatment is mainly including surface coating antibacterial coatings, physically composite addition antibacterial agents, and the surface chemical bonded antibacterial ingredients by material surface. However, spray chemical fungicides can lead to microbial variation and environmental secondary pollution, and use nanofacterial agen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/005D01D5/34D01F8/06D01F8/08D01F1/10
CPCD01D5/34D01F1/103D01F8/06D01F8/08D04H3/005
Inventor 吴龙涛陈利军王亚飞宋宝祥刘双全
Owner DONGGUAN YIMAO FILTER MEDIA
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