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Nanofiber filtering material and preparation method thereof

A filter material and nanofiber technology, which is applied in the field of nanofiber filter material and its preparation, can solve the problems that threaten the survival and development of all human beings, high resistance to filtration, ecological damage, etc., and achieve excellent air permeability, high filtration efficiency, and low The effect of filter resistance

Inactive Publication Date: 2019-11-22
KUNSHAN TUNGRAY IND AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the 21st century, human beings have created unprecedented material wealth and accelerated the development of civilization, but at the same time, major problems such as environmental pollution and ecological destruction have emerged, threatening the future survival and development of all human beings.
However, the filter resistance of this composite material is large after a long time of use, and the filter efficiency needs to be further improved.

Method used

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  • Nanofiber filtering material and preparation method thereof
  • Nanofiber filtering material and preparation method thereof
  • Nanofiber filtering material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Mix 180g of nylon-66 with 820g of formic acid, stir at 50°C until completely dissolved to form a uniform spinning solution, and spin it on the polypropylene spunbonded nonwoven material substrate by a needle-free reciprocating electrospinning method, and then cover it with a After one layer of polypropylene spun-bonded non-woven material, hot roll pressing is carried out, and the grammage of the nanofiber filter material layer obtained by controlling the receiving time of the substrate is 2.0g, and the grammage of the two-layer polypropylene spun-bonded non-woven material is 20g. Wherein, the SEM electron micrograph of the nanofiber filter material layer that the present embodiment makes is as follows image 3 shown.

[0049] Among them, the specific parameters of the needle-free reciprocating electrospinning method are: the voltage of high-voltage static electricity is 80KV, the receiving distance between the spinning electrode and the first spunbonded filter material ...

Embodiment 2

[0052] Mix 180g of nylon-66 with 820g of formic acid, stir at 50°C until completely dissolved to form a homogeneous solution, and spin it on a polypropylene spunbonded nonwoven material substrate by a needle-free reciprocating electrospinning method, and then cover it with a layer of polypropylene After the propylene spunbonded nonwoven material is hot-rolled, the grammage of the nanofiber filter material layer obtained by controlling the receiving time of the substrate is 1.5g, and the grammage of the two layers of polypropylene spunbonded nonwoven material is 20g.

[0053] Among them, the specific parameters of the needle-free reciprocating electrospinning method are: the voltage of high-voltage static electricity is 70KV, the receiving distance between the spinning electrode and the first spunbond filter material substrate is 20cm, and the spinning temperature is 20°C. The relative humidity for spinning was 40%.

[0054] The filter material prepared in this embodiment was t...

Embodiment 3

[0056] Mix 140g of nylon-66 with 860g of formic acid, stir at 50°C until completely dissolved to form a homogeneous solution, and spin it on a polypropylene spunbonded nonwoven material substrate by a needle-free reciprocating electrospinning method, and then cover it with a layer of polypropylene After the propylene spunbonded nonwoven material is hot-rolled, the grammage of the nanofiber filter material layer obtained by controlling the receiving time of the substrate is 1.5g, and the grammage of the two layers of polypropylene spunbonded nonwoven material is 20g.

[0057] Among them, the specific parameters of the needle-free reciprocating electrospinning method are: the voltage of high-voltage static electricity is 75KV, the receiving distance between the spinning electrode and the first spunbond filter material substrate is 25cm, and the spinning temperature is 25°C. The relative humidity for spinning was 50%.

[0058] The filter material prepared in this embodiment was t...

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Abstract

The invention provides a nanofiber filtering material and a preparation method thereof. The nanofiber filtering material comprises a first spun-bonded filter material layer, a nanofiber filtering material layer and a second spun-bonded filtering material layer which are sequentially arranged from top to bottom, wherein the nanofiber filtering material layer is directly spun on the first spun-bonded filtering material layer through a needleless reciprocating type electrostatic spinning method, and the second spun-bonded filtering material layer is connected with the nanofiber filtering materiallayer in a press fit mode. The nanofiber filtering material prepared by the method is high in filtering efficiency and low in filtering resistance.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to a filter material and a preparation method thereof, in particular to a nanofiber filter material and a preparation method thereof. Background technique [0002] In the 21st century, mankind has created unprecedented material wealth and accelerated the development of civilization. However, major problems such as environmental pollution and ecological destruction have emerged at the same time, threatening the future survival and development of all mankind. As the largest developing country, the problem of environmental pollution is one of the most concerned issues in this century. How well this problem is solved is a decisive factor that directly affects whether my country can take the road of sustainable development. [0003] With the progress of society and the improvement of people's living standards, the impact of indoor air quality on human health has attracted mo...

Claims

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Application Information

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IPC IPC(8): B01D39/04B01D39/02B01D46/30B32B27/02B32B27/12B32B27/08B32B27/32B32B27/34B32B37/02B32B37/10B32B37/06
CPCB01D39/02B01D39/04B01D46/30B01D2239/10B32B5/02B32B5/022B32B5/06B32B5/08B32B5/26B32B37/02B32B37/06B32B37/10B32B2250/03B32B2250/20B32B2250/24B32B2250/40B32B2262/0253B32B2262/0261
Inventor 李成永邱邦胜姚万军张美任有权
Owner KUNSHAN TUNGRAY IND AUTOMATION
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