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A kind of high-strength antibacterial melt-blown air filter material and preparation method thereof

An air filter material and high-strength technology, applied in the direction of melt spinning, separation method, filtration and separation, etc., can solve the problems that the melt-blown filter material is easy to tear, affect the use effect, and affect the protection effect, so as to improve the mechanical strength, Effect of improving filtration performance and improving antibacterial stability

Active Publication Date: 2022-07-22
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical strength of the melt-blown filter material greatly affects its use effect. The low-strength melt-blown filter material is easy to tear, not only has poor durability, but also bacteria can easily enter from the tear, resulting in a decrease in filtration efficiency and seriously affecting protection. At the same time, in order to better protect against diseases and cut off the way of disease transmission, it is also necessary for the melt-blown filter material to have good antibacterial properties

Method used

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  • A kind of high-strength antibacterial melt-blown air filter material and preparation method thereof
  • A kind of high-strength antibacterial melt-blown air filter material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of high-strength antibacterial melt-blown air filter material:

[0031] S1. Mix the coupling agent-modified β-cyclodextrin, coupling agent-modified nano-titanium dioxide and polypropylene uniformly, and then melt extrusion and granulation through a twin-screw extruder at 260-280 °C to obtain modified Polypropylene masterbatch, coupling agent-modified β-cyclodextrin accounts for 3% of the total weight of the modified polypropylene masterbatch, and coupling agent-modified nano-titanium dioxide accounts for 2% of the total weight of the modified polypropylene masterbatch;

[0032] S2. Mix the modified polypropylene masterbatch and polypropylene chips uniformly at a weight ratio of 1:5, then add them into a melt-blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 230°C. It is sprayed to form fibers, and β-cyclodextrin is sprayed on the surface of the formed fibers while the spinneret is sprayed, and then cooled, stretched and s...

Embodiment 2

[0037] Preparation of high-strength antibacterial melt-blown air filter material:

[0038] S1. Mix the coupling agent-modified β-cyclodextrin, coupling agent-modified nano-titanium dioxide and polypropylene uniformly, and then melt extrusion and granulation through a twin-screw extruder at 260-280 °C to obtain modified Polypropylene masterbatch, coupling agent-modified β-cyclodextrin accounts for 6% of the total weight of the modified polypropylene masterbatch, and coupling agent-modified nano-titanium dioxide accounts for 1% of the total weight of the modified polypropylene masterbatch;

[0039] S2. Mix the modified polypropylene masterbatch and polypropylene chips uniformly at a weight ratio of 1:5, then add them into a melt-blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 250°C. It is sprayed to form fibers, and β-cyclodextrin is sprayed on the surface of the formed fibers while the spinneret is sprayed, and then cooled, stretched and s...

Embodiment 3

[0044] Preparation of high-strength antibacterial melt-blown air filter material:

[0045] S1. Mix the coupling agent-modified β-cyclodextrin, coupling agent-modified nano-titanium dioxide and polypropylene uniformly, and then melt extrusion and granulation through a twin-screw extruder at 260-280 °C to obtain modified Polypropylene masterbatch, coupling agent-modified β-cyclodextrin accounts for 4.5% of the total weight of the modified polypropylene masterbatch, and coupling agent-modified nano-titania accounts for 1.5% of the total weight of the modified polypropylene masterbatch;

[0046] S2. Mix the modified polypropylene masterbatch and polypropylene chips uniformly at a weight ratio of 1:7, then add them into a melt-blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 245°C. It is sprayed to form fibers, and β-cyclodextrin is sprayed on the surface of the formed fibers while the spinneret is sprayed, and then cooled, stretched and shaped...

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Abstract

The invention discloses a high-strength antibacterial melt-blown air filter material and a preparation method thereof. The preparation method comprises: S1, melting a coupling agent-modified β-cyclodextrin, a coupling agent-modified nano-titanium dioxide and polypropylene. Extrusion and granulation to obtain the modified polypropylene masterbatch; S2, after the modified polypropylene masterbatch and the polypropylene chips are melted, they are sprayed out through a spinneret to form fibers, and the fibers are sprayed from the spinneret to the formed fibers Spraying β-cyclodextrin on the surface to obtain a base material for melt-blown air filter material; S3, padding and drying the base material for melt-blown air filter material in an antibacterial finishing solution to obtain a base material for modified melt-blown air filter material; S4 , Electret treatment of the modified melt-blown air filter material substrate. The melt-blown air filter material of the present invention not only has high efficiency and low resistance, but also has good antibacterial performance, high mechanical strength and excellent protective performance.

Description

technical field [0001] The invention relates to the technical field of melt-blown filter materials, in particular to a high-strength antibacterial melt-blown air filter material and a preparation method thereof. Background technique [0002] Dust, bacteria and other pollutants in the floating air have a great impact on human health. With the gradual improvement of living standards, people also put forward higher requirements for air quality. The main raw materials of melt-blown filter materials are polypropylene, polyethylene, polylactic acid, PBT, etc., which have the characteristics of low fiber fineness, many pores, large specific surface area, and complex three-dimensional structure. The core material of protective masks and other fields. The mechanical strength of the melt-blown filter material affects its use effect to a large extent. The melt-blown filter material with low strength is easy to tear, not only has poor durability, but also bacteria is easy to enter from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/03D06M13/11D06M13/188D06M10/02D01F6/46D01F1/10D01D5/098B01D39/16B01D46/00D06M101/20
CPCD06M15/03D06M13/11D06M13/188D06M10/025D06M16/00D01F6/46D01F1/10B01D39/1623B01D46/0001D01D5/0985D06M2101/20
Inventor 赵建军邵立忠陈云童茜程长发朱家俊张应佳郑有松张本林周家云
Owner ANHUI ELECTRIC GRP SHARES
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