CN112704960B - Preparation method of composite filter material - Google Patents
Preparation method of composite filter material Download PDFInfo
- Publication number
- CN112704960B CN112704960B CN202011431978.5A CN202011431978A CN112704960B CN 112704960 B CN112704960 B CN 112704960B CN 202011431978 A CN202011431978 A CN 202011431978A CN 112704960 B CN112704960 B CN 112704960B
- Authority
- CN
- China
- Prior art keywords
- filter material
- bag
- composite filter
- polypyrrole
- carrying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses a preparation method of a composite filter material, and belongs to the technical field of textile materials. Firstly, carrying out primary inspection on the recovered waste filter bags, selecting undamaged filter bags, cutting off bag heads, bag tails and sewing parts, removing floating dust on the surfaces, then washing with water, drying, carrying out plasma treatment, soaking in a mixed solution of ferric chloride and sodium salicylate, standing at-5 ℃, then pouring a cyclohexane dispersion liquid of polypyrrole with the same volume, mixing uniformly, carrying out static polymerization, finally taking out the filter materials, cleaning and drying to obtain the polypyrrole/cyclohexane dispersion liquid composite material. The composite filter material prepared by the invention has excellent conductive performance, has excellent heating performance under the conditions of illumination and applied voltage, can be used as a heating and heat-insulating material, adopts the waste filter material as a raw material, has low cost, reduces the pollution of the waste filter material to the environment, promotes the resource recovery and reutilization, simultaneously reduces the environmental pollution problem caused by waste incineration and other treatment modes, and is green and environment-friendly.
Description
Technical Field
The invention relates to a preparation method of a composite filter material, and belongs to the technical field of textile materials.
Background
In recent years, with the progress of industrial development in China, environmental pollution in many areas of China is becoming more serious. The industrial dust removal filter bag has the advantages of high dust collection efficiency, low cost and the like, and becomes an industrial dust removal sharp device. The industrial dust-removing filter bag is usually made of non-woven fabrics such as needle punching, spunlace and the like, the non-woven fabrics have larger thickness and fluffy porous structures, and when the industrial dust-removing filter bag is used for a certain time, the filtration efficiency and the filtration precision cannot meet the requirements, the industrial dust-removing filter bag needs to be integrally replaced. The filter bag which is replaced still has certain strength and a complete fabric structure, and the filtering performance can not meet the requirement, so that the filter bag is usually incinerated or buried, and a large amount of fiber raw materials are wasted.
Disclosure of Invention
The invention aims to provide a preparation method of a composite filter material, which aims to solve the problems of resource waste and environmental pollution caused by incineration treatment of waste filter materials in the prior art.
Technical scheme
A preparation method of a composite filter material comprises the following steps:
(1) carrying out primary inspection on the recycled waste filter bags, selecting the undamaged filter bags, cutting off the bag heads, the bag tails and the sewing parts, removing floating dust on the surfaces, then washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material to obtain a treated filter material;
(3) and (3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate, standing at-5 ℃, then pouring equal-volume cyclohexane dispersion liquid of polypyrrole, uniformly mixing, carrying out static polymerization, finally taking out the filter material, cleaning, and drying to obtain the composite filter material.
Further, in the step (1), the filter bag is made of terylene, acrylic, glass fiber, PTFE (polytetrafluoroethylene), PPS (polyphenylene sulfide) or aramid fiber.
Further, in the step (2), the plasma processing current is set to be 1.5A-4.5A, and the processing time is 30-90 s.
Further, in the step (3), the temperature of the static polymerization is 0-20 ℃ and the time is 1-3 h.
Further, in the step (3), the molar ratio of the ferric chloride to the sodium salicylate in the mixed solution of the ferric chloride and the sodium salicylate is 1: 1-2.
Further, in the step (3), the concentration of polypyrrole in the cyclohexane dispersion of polypyrrole is 1 to 2 mol/L.
Further, in the step (3), the drying temperature is 60 ℃.
Has the advantages that: (1) the industrial waste filter bag is subjected to composite treatment, and a uniform polypyrrole coating is formed on the surface of the filter material, so that the filter material has excellent conductivity; (2) the composite filter material prepared by the invention has good heating and heat-insulating properties under the conditions of illumination and electrification, and can be used in the fields of pipeline heat-insulating materials, agricultural greenhouse covering heat-insulating materials and the like; (3) the method has low cost, reduces the pollution of the waste filter material to the environment, promotes the resource recycling, simultaneously reduces the problem of environmental pollution caused by waste incineration and other treatment modes, and is green and environment-friendly.
Detailed Description
The technical solution of the present invention is described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the examples.
Example 1
A preparation method of a composite filter material comprises the following steps:
(1) performing primary inspection on the recycled waste filter bags (in the embodiment, the waste filter bags are filter bags which are replaced in the service life of 2 years and are made of terylene), selecting undamaged filter bags, cutting off bag heads, bag tails and sewing parts, removing floating dust on the surfaces, then washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material, wherein the current of the plasma treatment is set to be 2.5A, and the treatment time is 30s, so as to obtain the treated filter material;
(3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate (the concentration of ferric chloride is 3.6mol/L and the concentration of sodium salicylate is 3.6mol/L), standing for 1h at-5 ℃, then pouring equal-volume polypyrrole cyclohexane dispersion (the concentration of polypyrrole is 1.2mol/L), mixing uniformly, performing static polymerization for 2h at 5 ℃, finally taking out the filter material, cleaning, and drying at 60 ℃ to obtain the composite filter material.
The surface resistance value of the composite filter material prepared in the embodiment is 40 Ω/sq.
Example 2
A preparation method of a composite filter material comprises the following steps:
(1) performing initial inspection on the recycled waste filter bags (in the embodiment, the waste filter bags are filter bags which are replaced in the service life of 2 years and are made of PTFE), selecting undamaged filter bags, cutting off bag heads, bag tails and sewing parts, removing floating dust on the surfaces, then washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material, wherein the current of the plasma treatment is set to be 4.5A, and the treatment time is 60s, so as to obtain the treated filter material;
(3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate (the concentration of ferric chloride is 1.8mol/L and the concentration of sodium salicylate is 2.7mol/L), standing for 1h at-5 ℃, then pouring equal-volume polypyrrole cyclohexane dispersion (the concentration of polypyrrole is 1.2mol/L), mixing uniformly, performing static polymerization at 10 ℃ for 3h, finally taking out the filter material, cleaning, and drying at 60 ℃ to obtain the composite filter material.
The surface resistance value of the composite filter material prepared in the embodiment is 100 Ω/sq.
Example 3
A preparation method of a composite filter material comprises the following steps:
(1) performing initial inspection on the recycled waste filter bags (in the embodiment, the waste filter bags are filter bags which are replaced in the service life of 1.5 years and are made of PPS), selecting undamaged filter bags, cutting off bag heads, bag tails and sewing parts, removing floating dust on the surfaces, then washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material, wherein the plasma treatment current is set to be 3.5A, and the treatment time is 40s, so as to obtain the treated filter material;
(3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate (the concentration of ferric chloride is 1.8mol/L and the concentration of sodium salicylate is 3.6mol/L), standing for 1h at-5 ℃, then pouring equal-volume polypyrrole cyclohexane dispersion (the concentration of polypyrrole is 1.2mol/L), mixing uniformly, performing static polymerization for 1h at 10 ℃, finally taking out the filter material, cleaning, and drying at 60 ℃ to obtain the composite filter material.
The surface resistance value of the composite filter material prepared in the embodiment is 150 Ω/sq.
Example 4
A preparation method of a composite filter material comprises the following steps:
(1) performing primary inspection on the recycled waste filter bags (in the embodiment, the waste filter bags are filter bags which are replaced in the service life of 2 years and are made of terylene), selecting undamaged filter bags, cutting off bag heads, bag tails and sewing parts, removing floating dust on the surfaces, then washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material, wherein the plasma treatment current is set to be 3A, and the treatment time is 30s, so as to obtain the treated filter material;
(3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate (the concentration of ferric chloride is 2mol/L and the concentration of sodium salicylate is 4mol/L), standing for 1h in an environment of-5 ℃, then pouring equal-volume cyclohexane dispersion of polypyrrole (the concentration of polypyrrole is 1.2mol/L), mixing uniformly, performing static polymerization for 2h at 5 ℃, finally taking out the filter material, cleaning, and drying at 60 ℃ to obtain the composite filter material.
The surface resistance value of the composite filter material prepared in the embodiment is 10 Ω/sq.
And (3) testing the heating performance:
the composite filter materials prepared in examples 1 to 4 were tested for saturation temperature at different voltages (1V, 2V, 3V, 4V) using an infrared thermal imager, and the results are shown in table 1:
TABLE 1
As can be seen from the test results in Table 1, the composite filter materials prepared in examples 1 to 4 have excellent heat generating properties.
Claims (5)
1. The preparation method of the composite filter material is characterized by comprising the following steps of:
(1) carrying out initial inspection on the recycled waste filter bag, selecting an undamaged filter bag, cutting off a bag head, a bag tail and a sewing part, removing floating dust on the surface, washing with water, and drying for later use;
(2) carrying out plasma treatment on the dried filter material to obtain a treated filter material;
(3) soaking the treated filter material in a mixed solution of ferric chloride and sodium salicylate, standing at-5 ℃, then pouring equal-volume cyclohexane dispersion liquid of polypyrrole, mixing uniformly, carrying out static polymerization, finally taking out the filter material, cleaning and drying to obtain a composite filter material;
in the step (2), the plasma processing current is set to be 1.5-4.5A, and the processing time is 30-90 s;
in the step (3), the temperature of the static polymerization is 0-10 ℃ and the time is 1-3 h.
2. The preparation method of the composite filter material of claim 1, wherein in the step (1), the filter bag is made of polyester, acrylic, glass fiber, PTFE, PPS or aramid.
3. The preparation method of the composite filter material of claim 1, wherein in the step (3), the molar ratio of the ferric chloride to the sodium salicylate in the mixed solution of the ferric chloride and the sodium salicylate is 1: 1-2.
4. The method for preparing the composite filter material according to claim 1, wherein in the step (3), the concentration of polypyrrole in the cyclohexane dispersion liquid of polypyrrole is 1 to 2 mol/L.
5. The method for preparing a composite filter material according to any one of claims 1 to 4, wherein in the step (3), the drying temperature is 60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431978.5A CN112704960B (en) | 2020-12-07 | 2020-12-07 | Preparation method of composite filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431978.5A CN112704960B (en) | 2020-12-07 | 2020-12-07 | Preparation method of composite filter material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112704960A CN112704960A (en) | 2021-04-27 |
| CN112704960B true CN112704960B (en) | 2022-09-30 |
Family
ID=75542828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011431978.5A Active CN112704960B (en) | 2020-12-07 | 2020-12-07 | Preparation method of composite filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112704960B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445324B (en) * | 2022-08-19 | 2023-08-22 | 河北钢铁集团矿业有限公司 | High-performance filter cloth for bag-type dust collector and preparation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU644602B2 (en) * | 1989-08-31 | 1993-12-16 | Blasberg-Oberflachentechnik Gmbh | Plated-through printed circuit board with resist and process for producing it |
| EP0446172A3 (en) * | 1990-03-08 | 1992-03-04 | Ciba-Geigy Ag | Electrical conductive press masses and polyheteroaromates and polymere sulfate fillers |
| CN104001371A (en) * | 2014-05-30 | 2014-08-27 | 福州大学 | Method for recycling waste dust removal filter material |
| CN105970601B (en) * | 2016-06-07 | 2018-06-26 | 浙江大学 | A kind of preparation method of titanium dioxide nano-rod/polypyrrole/terylene compound fabric |
| CN110117049B (en) * | 2019-05-07 | 2021-07-27 | 河海大学 | Preparation method of metal-organic framework/polypyrrole hybrid conductive electrode |
| CN110746938B (en) * | 2019-10-17 | 2021-05-11 | 东华大学 | Cellulose/polypyrrole supported composite phase change heat storage material and preparation method thereof |
| CN111455654A (en) * | 2020-04-29 | 2020-07-28 | 上海工程技术大学 | Preparation method of polypyrrole composite wool conductive fabric |
| CN111962303A (en) * | 2020-07-13 | 2020-11-20 | 苏州经贸职业技术学院 | Conductive composite fiber and preparation method thereof |
-
2020
- 2020-12-07 CN CN202011431978.5A patent/CN112704960B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112704960A (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104118178B (en) | A kind of preparation method of PPS superfine fibre composite filtering material | |
| CN112704960B (en) | Preparation method of composite filter material | |
| CN107768622A (en) | A kind of nitrogen-doped carbon nano-fiber/molybdenum disulfide composite and its preparation method and application | |
| CN102872649A (en) | Compound filter material for high-temperature flue gas bag-type dust removal system and preparation method of same | |
| CN201537429U (en) | Oil-repellent waterproof high temperature glass fiber filter material | |
| CN106215461A (en) | Super-hydrophobic/super-oleophilic porous nethike embrane for oil-water separation and preparation method and application | |
| CN101596384A (en) | A kind of composite filtering material and its production and application | |
| CN105709499A (en) | High-temperature-resistant aramid filter cloth capable of facilitating dust removing and preparation method thereof | |
| CN206746178U (en) | A kind of Anti-static polytetrafluoroethylfilter filter bag | |
| CN206631327U (en) | A kind of woven filtrate of inorfil | |
| CN202751886U (en) | Base material with superfine glass fiber coating film | |
| CN205569941U (en) | Environment -friendly is high temperature resistant, and acupuncture felt is filtered to complex | |
| CN110453507B (en) | Preparation method of water-repellent polar fleece fabric and water-repellent polar fleece fabric | |
| CN202078807U (en) | Bulk glass fiber weaving filter material | |
| CN202237574U (en) | Glass fiber composite filter material | |
| CN204147659U (en) | The non-woven fabricbase cloth of a kind of middle high temperature adds the filtering material of metalized fibers | |
| CN105617763A (en) | Composite air filtration cloth and manufacturing method thereof | |
| CN109550313A (en) | A kind of silicone oil processing glass fibre filtrate | |
| CN203389429U (en) | FMS high temperature resistant needled felt | |
| CN206566609U (en) | A kind of woven filtrate of organic fiber | |
| CN206843691U (en) | Mixed ply ground fabric | |
| CN205252709U (en) | Refuse grease proofing needled filter felt of water | |
| CN204051235U (en) | A kind of filtrate for garbage burning factory vent gas treatment | |
| CN202527008U (en) | Polyimide and glass fiber composite filter felt | |
| CN204656195U (en) | The special filter bag of a kind of cement industry kiln tail dedusting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |