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High temperature resistant air filtering material and preparation method thereof

An air filter material and technology of filter material, applied in the field of non-woven composite filter material, can solve the problems of fiber mesh compression resistance, insufficient compression resilience, high efficiency and low resistance, high temperature intolerant ultra-fine glass fiber material, etc. Bulkiness and anti-deformation ability, strengthen the bond strength, avoid the effect of delamination

Active Publication Date: 2017-05-31
榆林天盛缘玻璃纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ultra-fine and soft melt-blown fibers lead to insufficient compression resistance and compression resilience of the fiber web.
At present, there is no application of combining ultra-fine glass fiber cotton materials and short-fiber hybrid melt-blown materials to solve the defects of high-efficiency and low-resistance but not high-temperature resistance of short-fiber hybrid melt-blown materials and the air permeability and strength of ultra-fine glass fiber materials. , folding resistance and other defects

Method used

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  • High temperature resistant air filtering material and preparation method thereof
  • High temperature resistant air filtering material and preparation method thereof

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preparation example Construction

[0022] The present invention simultaneously provides a kind of preparation method of high temperature resistant air filter material, it is characterized in that comprising the following steps:

[0023] (1) Feed the glass raw material into the ultra-fine glass fiber production equipment 6, form the primary fiber 7 through melting and drawing, and the burner 8 ejects a high-temperature flame, and under the action of the air flow, the primary fiber 7 is drawn into 1-10 μm The superfine glass fiber 15, under the action of the draft negative pressure, is gathered on the web delivery curtain of the air-laid machine; at the same time, the high-temperature-resistant fiber raw material is fed into the cotton feeding box 9 through the driving roller 10, and then Under the action of the roller 13, it is further opened, and the airflow is introduced from the pipeline 11, and the high-temperature-resistant short fiber 12 is dispersed into the ultrafine glass fiber 15 by airflow transportati...

Embodiment 1

[0026] The high-temperature-resistant nonwoven fabric layer 1 is a needle-punched nonwoven fabric prepared from polyphenylene sulfide staple fibers, with a grammage of 100 g / m 2 . The high temperature-resistant short fiber intercalated ultrafine glass fiber nonwoven fabric layer 2 is a mixture of polyphenylene sulfide short fibers and ultrafine glass fibers, and the weight range is 200g / m 2 .

[0027](1) Feed the glass raw material into the ultra-fine glass fiber production equipment 6, and form the primary fiber 7 through melting and drawing. The burner 8 ejects a high-temperature flame, and under the action of the air flow, the primary fiber 7 is drawn into a 5 μm ultra-fine fiber. Fine glass fiber 15, under the action of draft negative pressure, gathers on the net conveying curtain of air-laid machine; At the same time, the polyphenylene sulfide fiber that length is 40mm, fineness is 20μm and has certain crimp passes driving roller 10 is fed into the cotton feeding box 9,...

Embodiment 2

[0031] The high-temperature-resistant nonwoven fabric layer 1 is a needle-punched nonwoven fabric prepared from polyimide staple fibers, with a grammage of 120 g / m 2 . The high-temperature-resistant short fiber intercalation ultrafine glass fiber nonwoven layer 2 is a mixture of polyimide short fiber and ultrafine glass fiber, and the weight range is 180g / m 2 .

[0032] (1) Feed the glass raw material into the ultra-fine glass fiber production equipment 6, and form the primary fiber 7 through melting and drawing. The burner 8 ejects a high-temperature flame, and under the action of the air flow, the primary fiber 7 is drawn into a 5 μm ultra-fine fiber. Fine glass fiber 15, under the effect of draft negative pressure, gathers on the net conveying curtain of air-laid machine; At the same time, the polyimide fiber that length is 45mm, fineness is 25μm and has certain crimp passes driving roller 10 is fed into the cotton feeding box 9, further opened under the action of the lic...

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Abstract

The invention discloses a high temperature resistant air filtering material and a preparation method thereof. The filtering material comprises three layers, the upper and lower layers are high temperature resistant non-woven fabric layers, the middle layer is a high temperature resistant staple fiber inserted ultra-fine glass fiber non-woven fabric layer. According to the filtering material, in the production process of the glass fiber, the air flow is used for transmitting the high temperature resistant staple and distributing the staple into the ultra-fine glass fiber. After the mixing of the high temperature resistant staple and the ultra-fine glass fiber, sand blasting is used for making the two materials bonded to form a multi-dimensional, multi-sizeable and fluffy high temperature resistant staple inserted ultra-fine glass fiber non-woven fabric layer, then the ultrasonic adhesion technology is used for compounding the upper and lower surfaces of the high temperature resistant staple inserted ultra-fine glass fiber non-woven fabric layer with the high temperature resistant non-woven fabric layer. The high temperature resistant air filtering material has the advantages of being fluffy and soft, good in elasticity, high in porosity, and good in uniformity. The material prepared by using the method has good air permeability, good filtering performance, pressure resistance performance and high temperature performance, can resist ash removal vibration, is not prone to breaking which can invalidate the filtering material.

Description

technical field [0001] The invention relates to a non-woven composite filter material, in particular to a high-temperature-resistant air filter material and a preparation method thereof. Background technique [0002] At present, ultra-fine glass fiber (commonly known as glass fiber cotton) and its products are widely used building insulation materials, and it is a relatively common inorganic heat-insulating and sound-absorbing material in the construction industry, which can be divided into alkali-free and medium-alkali And high alkali fiberglass cotton. The fiber length of glass fiber cotton is 50-150mm, and the fiber diameter is less than 15μm. The interlaced superfine fibers form a porous structure material, which has light weight, low thermal conductivity, good sound absorption performance, high filtration efficiency, high temperature resistance, corrosion resistance, etc. Excellent performance, widely used in heat preservation, sound absorption, filter materials. [0...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/4218D04H1/655D04H1/593D04H1/555D04H1/4374B01D39/14B32B17/02B32B17/12B32B7/12B32B33/00B32B37/10B32B37/12
CPCB01D39/14B01D2239/0216B01D2239/0681B32B5/02B32B5/26B32B7/12B32B33/00B32B37/10B32B37/1284B32B2262/101B32B2307/306B32B2307/50B32B2307/724D04H1/4218D04H1/4374D04H1/4382D04H1/555D04H1/593D04H1/655
Inventor 钱晓明钱幺邓辉刘永胜
Owner 榆林天盛缘玻璃纤维科技有限公司
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