Filtering material for metallization of non-woven base fabrics for normal temperature and preparation method of filtering material

A technology of metallization treatment and non-woven fabrics, which is applied in the field of industrial textiles, can solve the problems of less anti-static filter materials, unstable anti-static performance, and large surface resistance, and achieve easy large-scale mass production and anti-static properties. Good, the effect of long production process

Active Publication Date: 2015-01-21
TIANNUO PHOTOELECTRIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, method (1) has disadvantages such as long production process, complicated process, and poor uniformity; methods (2) and (3) have disadvantages such as unstable antistatic performance, fast attenuation, and large surface resistance.
[0003] At present, there are few researches on anti-static filter materials at home and abroad. The invention patent (201310119167.5) provides an anti-static polytetrafluoroethylene filter bag and its preparation method. The method base fabric is made of polytetrafluoroethylene filaments and stainless steel fibers. Twisted strands are woven through warp and weft phases, and the upper and lower sides of the base fabric are covered with non-woven layers. The antistatic functional layer is different from that of the present invention.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Dry the polyester fiber nonwoven base fabric at 60°C for 24 hours;

[0029] (2) Physically degrease the dried polyester fiber nonwoven base fabric under the action of a 90kHz ultrasonic field for 30 minutes;

[0030] (3) Perform plasma pretreatment on the base fabric of polyester fiber nonwoven fabric after step (2) for 20 minutes;

[0031] (4) Vacuum evaporation method is used to coat the polyester fiber non-woven base fabric of step (3) with two layers of metal nickel on both sides, and the thickness of the single layer of coating is 0.05 μm. After testing, the resistance of the antistatic filter material base cloth is 1×10 3 Ω;

[0032] (5) The surface layer raw materials of polyester fiber non-woven fabrics are mixed, opened, carded, formed into a net, and added in the middle by steps (4) of base cloth, acupuncture, and shaping to prepare anti-static filter materials.

Embodiment 2

[0034] (1) Dry the polypropylene fiber nonwoven base fabric at 100°C for 36 hours;

[0035] (2) Physically degrease the dried polypropylene fiber nonwoven base fabric under the action of a 40kHz ultrasonic field for 50 minutes;

[0036] (3) Carry out corona pre-treatment for 60 minutes on the base fabric of polypropylene fiber nonwoven fabric after step (2);

[0037] (4) Vacuum evaporation method is used to coat the polypropylene fiber non-woven fabric base cloth in step (3) with a layer of metallic silver, a layer of metallic copper, and a layer of metallic nickel on both sides, and the thickness of the single-layer plating layer is 1 μm. After testing, the resistance of the antistatic filter material base cloth is 1×10 2 Ω.

[0038] (5) The surface layer raw materials of polyester fiber non-woven fabrics are mixed, opened, carded, formed into a net, and added in the middle by steps (4) of base cloth, acupuncture, and shaping to prepare anti-static filter materials.

Embodiment 3

[0040] ⑴Dry the polyester fiber and vinylon fiber mixed non-woven fabric base fabric at 80°C for 48 hours;

[0041] (2) Physically degrease the dried polyester fiber and vinylon fiber mixed non-woven fabric base fabric under the action of 20kHz ultrasonic field for 60min;

[0042] (3) Perform ion source pre-treatment on the base fabric of polyester fiber and vinylon fiber mixed non-woven fabric for 30 minutes after step (2);

[0043] (4) Using the physical vapor deposition method, the polyester fiber and vinylon fiber mixed non-woven fabric base cloth of step (3) is coated with a layer of metallic silver and a layer of metallic nickel on both sides, and the thickness of the single-layer plating layer is 0.1 μm. After testing, the resistance of the base cloth of the antistatic filter material is 0.3×10 3 Ω.

[0044] (5) The surface layer raw materials of nylon fiber nonwoven fabric are mixed, opened, carded, formed into a net, and the base cloth treated by step (4) is added i...

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Abstract

The invention provides a filtering material for the metallization of non-woven base fabrics for normal temperature and a preparation method of the filtering material. The filtering material comprises a non-woven fabric, namely a base fabric, and a surface layer, wherein the non-woven base fabric and the surface layer are fixed through needling, and both surfaces of the non-woven base fabric are coated with two or more layers of metal. The preparation method of the filtering material comprises the procedures of carrying out baking, physical deoiling, pretreatment and metal layer coating on the non-woven base fabric, needling with a non-woven surface layer raw material and typing. The anti-electrostatic filtering material prepared by the preparation method has the advantages of good static electricity preventing property, good uniformity, good binding force and the like and can be applied to the normal-temperature bag type dust removal of the fields of garbage incineration, thermal power generation, cement, iron and steel, chemical industry, metallurgy and the like.

Description

technical field [0001] The invention belongs to the field of industrial textiles, and in particular relates to a filter material and a preparation method for metallized non-woven cloth base cloth used at normal temperature. Background technique [0002] In petrochemical, iron and steel smelting, coal-fired power plants, waste incineration, cement and other industrial fields, the smoke generated by some processes has the characteristics of flammable, explosive, high temperature, etc. During the use process due to dust and dust, dust and filter material The friction between them is likely to generate a large amount of static electricity. If the charge cannot be eliminated in time, a fire or explosion will occur. High-temperature smoke and dust put forward higher requirements for the use of filter materials. With the continuous development of science and technology and modern technology, people pay more and more attention to air quality and personal protection. Therefore, it i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B32B15/04B32B15/09B32B15/088B32B15/085B32B15/082B32B27/02
Inventor 朱焰焰郑杰徐刚李智慧马苹苹张茂功郭涵
Owner TIANNUO PHOTOELECTRIC MATERIAL
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