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High-strength antibacterial melt-blown air filter material and preparation method thereof

An air filter material, high-strength technology, applied in the directions of melt spinning, separation method, filtration and separation, etc., can solve the problems of easy tearing of melt-blown filter materials, affect the protection effect, and reduce the filtration efficiency, and achieve improved mechanical strength, The effect of improving antibacterial stability and improving filtration performance

Active Publication Date: 2020-10-09
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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  • High-strength antibacterial melt-blown air filter material and preparation method thereof
  • High-strength antibacterial melt-blown air filter material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

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

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

[0032] S2. Mix the modified polypropylene masterbatch and polypropylene chips evenly at a weight ratio of 1:5, then add them to the melt blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 230°C Spray to form fibers, and spray β-cyclodextrin on the surface of the formed fibers while spraying from the spinneret, and then cool, stretch and shape to obtain the base materi...

Embodiment 2

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

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

[0039] S2. Mix the modified polypropylene masterbatch and polypropylene chips evenly at a weight ratio of 1:5, then add them to the melt blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 250°C Spray to form fibers, and spray β-cyclodextrin on the surface of the formed fibers while spraying from the spinneret, and then cool, stretch and shape to obtain the base material o...

Embodiment 3

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

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

[0046] S2. Mix the modified polypropylene masterbatch and polypropylene chips evenly at a weight ratio of 1:7, then add them to the melt blown equipment, melt at 260-280°C, and pass through a spinneret with a temperature of 245°C Spray to form fibers, and spray β-cyclodextrin on the surface of the formed fibers while spraying from the spinneret, and then cool, stretch and shape to obtain the base materi...

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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 of the high-strength antibacterial melt-blown air filter material comprises the steps that S1, coupling agent modified beta-cyclodextrin, coupling agent modified nano titanium dioxide and polypropylene are subjected to melt extrusion granulation, and modified polypropylene master batch is obtained; S2, the modified polypropylene master batch and polypropylene slices are sprayed through a spinning nozzle after being melted to form fibers, and the beta-cyclodextrin is sprayed to the surfaces of the formed fibers while the fibers are sprayed through the spinning nozzle to obtain a melt-blown air filter material base material; S3, the melt-blown air filter material base material is padded in antibacterial finishing liquid, and drying is carried out to obtain a modified melt-blown air filter material base material; and S4, electret treatment is carried out on the modified melt-blown air filter material base material. The melt-blown air filter material is efficient, low in resistance, good in antibacterial property, high in mechanical strength andexcellent in protective property.

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 have 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. Core materials in fields such as protective masks. 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...

Claims

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Application Information

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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