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Antibacterial and antiviral melt-blown fabric and preparation method thereof

A melt-blown cloth and anti-virus technology, applied in non-woven fabrics, rayon manufacturing, single-component polyolefin rayon and other directions, can solve the problems of complex preparation process, poor antibacterial effect, easy falling off of antibacterial units, etc. The effect of simplifying the operation process, improving thermal stability and dispersibility, and high biosafety performance

Inactive Publication Date: 2021-06-08
河南驼人医疗器械研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an antibacterial and antiviral melt-blown cloth and a preparation method thereof, which are used to solve the problems of poor antibacterial effect, easy falling off of antibacterial units and complicated preparation process in the antibacterial and antiviral filter layer used in the production of masks in the prior art. technical problem

Method used

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  • Antibacterial and antiviral melt-blown fabric and preparation method thereof
  • Antibacterial and antiviral melt-blown fabric and preparation method thereof

Examples

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preparation example Construction

[0042] The invention provides a preparation method of antibacterial and antiviral melt-blown cloth, comprising the following steps:

[0043] Step (1) pretreatment of antibacterial and antiviral agent: put the antibacterial and antiviral agent into a ball mill for full grinding to obtain an antibacterial and antiviral agent powder with a particle size less than 10 μm, and grind the antibacterial and antiviral agent into fine powder to facilitate dispersion. The grinding time is 10min; if the antibacterial agent is selected from silver-loaded zirconium phosphate, silver-loaded silicate, nano-silver, nano-copper oxide, and nano-zinc oxide, since the size of itself has reached the nanometer level, the step (1 );

[0044] Step (2) mixing of raw materials: each raw material is accurately weighed according to the weight ratio, and the polypropylene particles with a melt index of 1500 are added to the blender, and then the antibacterial and antiviral powder obtained in step (1) is add...

Embodiment 1

[0061] An antibacterial and antiviral meltblown cloth, which is composed of the following raw materials in parts by weight: 100 parts of polypropylene particles with a melt index of 1500, 1 part of electret masterbatch, 0.03 parts of polymer quaternary ammonium salt, 0.1 part of oleic acid amide, silicone oil 0.2 parts, 0.1 parts of bis(2,2,6,6-tetramethylpiperidinyl) sebacate.

[0062] Its preparation method is as follows: step (1) pretreatment of antibacterial and antiviral agents: put the polymer quaternary ammonium salt into a ball mill for sufficient grinding to obtain a powder with a particle size of less than 10 μm, and the grinding time is 10 minutes;

[0063] Step (2) mixing of raw materials: accurately weigh each raw material according to the weight ratio, add polypropylene particles with a melt index of 1500 into the mixer, and then add the polymer quaternary ammonium salt obtained in step (1) to the mixer in turn Powder, oleic acid amide, silicone oil, bis(2,2,6,6-...

Embodiment 2

[0069] An antibacterial and antiviral meltblown cloth, which is composed of the following raw materials in parts by weight: 100 parts of polypropylene particles with a melt index of 1500, 2 parts of electret masterbatches, 1 part of organic silicon quaternary ammonium salt, 0.2 parts of erucamide, hard 0.6 part of fatty acid, 0.6 part of white oil, 0.1 part of 2'-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole.

[0070] The preparation method is as follows: step (1) pretreatment of antibacterial and antiviral agents: put the organosilicon quaternary ammonium salt into a ball mill for sufficient grinding to obtain a powder with a particle size of less than 10 μm, and the grinding time is 10 minutes;

[0071] Step (2) Mixing of raw materials: Accurately weigh each raw material according to the weight ratio, add polypropylene particles with a melt index of 1500 into the mixer, and then add the organosilicon quaternary ammonium salt obtained in step (1) to the mixe...

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Abstract

The invention relates to antibacterial and antiviral melt-blown fabric and a preparation method thereof. The antibacterial and antiviral melt-blown fabric is prepared from the following raw materials in parts by weight of 100 parts of polypropylene particles with a melt index of 1500, 1-5 parts of electret master batch, 0.03-10 parts of an antibacterial and antiviral agent, 0.1-2 parts of a lubricant, 0.2-2 parts of a dispersing agent and 0.1-0.2 part of a heat stabilizer. The preparation method of the melt-blown fabric comprises the following steps of step (1) pretreatment of the antibacterial and antiviral agent, step (2) mixing of raw materials, step (3) melt-blowing, and step (4) physical performance testing. By adding the lubricant, the dispersing agent and the heat stabilizer, the antibacterial and antiviral agent is uniformly dispersed in polypropylene particles, so that the heat stability and dispersity of the antibacterial and antiviral agent are improved, and the antibacterial and antiviral agent is not decomposed in the processing and using process and has excellent antibacterial and antiviral effects and very high biological safety performance; and the method simplifies the operation process, reduces the production cost and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of production and preparation of melt blown cloth, in particular relates to an antibacterial and antiviral melt blown cloth and a preparation method thereof. Background technique [0002] Melt-blown cloth is a filter material made of polypropylene as the main raw material, and its fiber diameter can reach 0.5-10 microns. These ultra-fine fibers with a unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the melt-blown cloth has great Good filterability, shielding, heat insulation and oil absorption, can be used in air, liquid filter materials, isolation materials, absorption materials, mask materials, thermal insulation materials and wiping cloths and other fields. Melt-blown cloth is the core material of masks, which can capture droplets containing bacteria and viruses through various mechanisms such as interception and electrostatic attraction. [0003] At pre...

Claims

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Application Information

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IPC IPC(8): D04H1/54D04H1/4291D01F6/46D01F1/10
CPCD01F1/10D01F1/103D01F6/46D04H1/4291D04H1/54D10B2401/13
Inventor 程杰王超威闫立论王薇崔景强夏怡琳胡趁趁李菲蒋飞远李丹杰王国锋刘志远刘改杰
Owner 河南驼人医疗器械研究院有限公司
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