CN102888753A - Method for surface refinement of nonwoven filter material - Google Patents
Method for surface refinement of nonwoven filter material Download PDFInfo
- Publication number
- CN102888753A CN102888753A CN2012104034309A CN201210403430A CN102888753A CN 102888753 A CN102888753 A CN 102888753A CN 2012104034309 A CN2012104034309 A CN 2012104034309A CN 201210403430 A CN201210403430 A CN 201210403430A CN 102888753 A CN102888753 A CN 102888753A
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- Prior art keywords
- filter material
- woven filter
- woven
- nonwoven filter
- waterproof
- 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.)
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- 239000000463 material Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000839 emulsion Substances 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 229920004933 Terylene® Polymers 0.000 claims abstract description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011737 fluorine Substances 0.000 claims abstract description 10
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 10
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 10
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 8
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 8
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000010008 shearing Methods 0.000 claims abstract description 3
- 229920001512 foam latex Polymers 0.000 claims description 18
- 239000002562 thickening agent Substances 0.000 claims description 12
- 230000002940 repellent Effects 0.000 claims description 11
- 239000005871 repellent Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000009941 weaving Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- -1 neopelex Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000004677 Nylon Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000013036 cure process Methods 0.000 abstract 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a method for surface refinement of a nonwoven filter material. The method comprises the steps of: immersing a nonwoven filter material into the water solution of a fluorine-containing waterproof agent so as to obtain a waterproof nonwoven filter material through the pad dry cure process; uniformly mixing an organic silicone modified polyacrylate emulsion, sodium dodecyl benzene sulfonate, hydroxyethyl cellulose, a thickner and water and then injecting compressed air so as to obtain a foam emulsion through mechanical shearing action; and scrapping the foam emulsion to the surface of the waterproof nonwoven filter material so as to realize the surface refinement of the nonwoven filter material after drying. The method has the advantages of low drying temperature, low cost and low energy consumption and the like; according to the method, terylene and nylon spun-bonded non-woven clothes which have flat surfaces are selected, the foam emulsion can form a micropore-rich film after being transferred and dried, and the filtering efficiency is improved; and the nonwoven filter is treated by the fluorine-containing waterproof agent, thus being not easily permeated by the foam emulsion, and being beneficial to formation of the micropore-rich film on the surface of the material.
Description
Technical field
The present invention relates to the method for filtering material surface fine, be specifically related to a kind of method of non-woven filter material surface fine.
Background technology
The industry of current China enters the high speed development stage, comprises a large amount of dust granules that discharge in the heavy industry processes such as iron and steel, coal, electric power, chemical industry, causes serious air pollution, and air pollution has become a global problem that needs to be resolved hurrily.Non-woven filter material has been widely used in the air filtration industry because its work flow is short, cost is low, and because its filter process belongs to in-depth filtration, so the difficult deashing of filtrate, service life is short.In addition, because non-woven filtrate aperture is large, filtering accuracy is low.For addressing the aforementioned drawbacks, adopt the filter material surface film coating technique, but in use there are the shortcomings such as resistance is large, energy consumption is high in coated filter material.
Application for a patent for invention (application number 201010185876.X) discloses a kind of method of face coat.Surface coating agent is comprised of polytetrafluoroethyldispersion dispersion, the concentrated dispersion liquid of perfluoroethylene-propylene, blowing agent, thickener, water, foams by the high speed shear effect.Filter material surface after the coating forms one deck microporous barrier, intercepts dust granules and enters filtrate inside, thereby improve filtering accuracy and deashing property;
In addition, also can select silicone-modified polyacrylate emulsion preparation foaming emulsion, realize the surface fine of non-woven filter material.
Summary of the invention
The object of the present invention is to provide a kind of method of non-woven filter material surface fine, adopt the preparation of non-woven filtrate WATER REPELLENT TREATMENT, foam latex, foam latex to shift and the techniques such as waterproof non-woven filter material typing are finished the non-woven filter material surface process that becomes more meticulous.
The technical solution used in the present invention may further comprise the steps:
The WATER REPELLENT TREATMENT of a, non-woven filter material: non-woven filter material is immersed in the aqueous solution of fluorine-containing water repellent, by soaking-roll-baking process, obtain the waterproof non-woven filter material;
The preparation of b, foam latex: silicone-modified polyacrylate emulsion, neopelex, hydroxyethylcellulose, thickener, water are evenly mixed, and injecting compressed air obtains foam latex by the mechanical shearing effect;
C, foam latex are transferred to the typing of waterproof non-woven filter material: adopt blade coating technique that described foam latex is transferred to described waterproof non-woven filter material surface, the dry rear surface fine of realizing non-woven filter material.
Among the described step a, non-woven filter material is terylene spun-bonded non-weaving cloth or polyamide fibre spun-bonded non-woven, and average pore size is 50 ~ 90 microns; The aqueous solution of fluorine-containing water repellent, by the water dilution, the mass concentration of the control fluorine-containing water repellent aqueous solution is 5%-35%; Soak-roll-baking process, dip time is 3-10 minute, and the padding machine pick-up is 2-5%, and stoving temperature is 80-120 ℃, and the time of curing is 20-60 second.
Among the described step b, the solid content of silicone-modified polyacrylate emulsion is 60%-80%; Thickener FTP; The mass fraction of silicone-modified polyacrylate emulsion, neopelex, hydroxyethylcellulose, thickener, water is 1:0.05 ~ 0.15:0.05 ~ 0.25:0.025 ~ 0.05:1 ~ 4.
Among the described step c, the waterproof non-woven filter material behind the blade coating, grammes per square metre is 100 ~ 300g/m
2Baking temperature is 130 ~ 150 ℃, and be 10 ~ 40 seconds drying time.
By the non-woven filter material after the surface fine processing, average pore size is down to 5 ~ 20 microns, is 56 ~ 68% to the filter efficiency of 0.3 micron grain size particle, and filtration resistance is 75 ~ 90Pa.
The beneficial effect that the present invention has is:
(1) owing to select the silicone-modified polyacrylate emulsion among the present invention, make the surface fine process have the advantages such as stoving temperature is low, cost is low, energy consumption is low.
(2) select terylene, polyamide fibre spun-bonded non-woven, its surfacing, after foam latex transfer, drying, emulsion can form the film that is rich in micropore, utilizes just micropore raising filter efficiency in the film.
(3) adopt fluorine-containing water repellent to process non-woven filter material, so foam latex is difficult for infiltrating in the non-woven filter material, the film that is conducive to be rich in micropore forms on the surface.
The specific embodiment
The below is embodiments of the invention.
Embodiment 1:
A, be that to immerse mass fraction be in 5% the TG-410HN aqueous solution for 50 microns terylene spun-bonded non-weaving cloth with average pore size, taking-up is 2% padding machine by pick-up after 3 minutes, terylene spun-bonded non-weaving cloth after processing is placed 80 ℃ oven-baked 20 seconds, obtain the waterproof non-woven filter material;
B, be that 1:0.05:0.05:0.025:1 fully mixes with TF-322C, neopelex, hydroxyethylcellulose, thickener FTP, water by mass fraction, injecting compressed air and mechanical agitation obtain foam latex;
C, the above-mentioned foam latex of 100g is transferred to 1 square metre of waterproof non-woven filter material surface, is placed in 130 ℃ the baking oven dry 10 seconds.
Near 20 microns of terylene spun-bonded cloth average pore size after the processing, filtration resistance is 75Pa when filtering 0.3 micron grain size particle, filter efficiency is 56%.
Embodiment 2:
A, be that 90 microns polyamide fibre spun-bonded non-woven immerses in the aqueous solution that mass fraction is 35% TG-525B and TG-533 (C8) with average pore size, taking-up is 5% padding machine by pick-up after 10 minutes, terylene spun-bonded non-weaving cloth after processing is placed 120 ℃ oven-baked 60 seconds, obtain the waterproof non-woven filter material;
B, be that 1:0.15:0.25:0.05:4 fully mixes with TF-323, neopelex, hydroxyethylcellulose, thickener FTP, water by mass fraction, injecting compressed air and mechanical agitation obtain foam latex;
C, the above-mentioned foam latex of 300g is transferred to 1 square metre of waterproof non-woven filter material surface, is placed in 150 ℃ the baking oven dry 40 seconds.
Near 5 microns of terylene spun-bonded cloth average pore size after the processing, filtration resistance is 90Pa when filtering 0.3 micron grain size particle, filter efficiency is 68%.
Embodiment 3:
A, be that 70 microns terylene spun-bonded non-weaving cloth immerses in the aqueous solution that mass fraction is 20% TG-581 and TG-435 (C8) with average pore size, taking-up is 3% padding machine by pick-up after 5 minutes, terylene spun-bonded non-weaving cloth after processing is placed 100 ℃ oven-baked 40 seconds, obtain the waterproof non-woven filter material;
B, the mixed emulsion with TF-323 and TF-322C, neopelex, hydroxyethylcellulose, thickener FTP, water are that 1:0.1:0.15:0.04:3 fully mixes by mass fraction, and injecting compressed air and mechanical agitation obtain foam latex;
C, the above-mentioned foam latex of 200g is transferred to 1 square metre of waterproof non-woven filter material surface, is placed in 140 ℃ the baking oven dry 30 seconds.
Near 10 microns of terylene spun-bonded cloth average pore size after the processing, filtration resistance is 80Pa when filtering 0.3 micron grain size particle, filter efficiency is 60%.
Described fluorine-containing water repellent is commercially available kind, the mixture of a kind of or the said goods among TG-410HN, the TG-525B that produces such as Zhejiang Province Chuanhua Co., Ltd, TG-533 (C8), TG-581, the TG-435 (C8).
The solid content of silicone-modified polyacrylate emulsion is 60%-80%; Adopt the commercially available prod, such as the mixture of a kind of or the said goods among TF-322C, the TF-323 of Zhejiang Province Chuanhua Co., Ltd.Thickener is commercially available kind, steps the thickener FTP that (Hunsman) company produces such as Hensel.
Claims (5)
1. the method for a non-woven filter material surface fine is characterized in that the method may further comprise the steps:
The WATER REPELLENT TREATMENT of a, non-woven filter material: non-woven filter material is immersed in the aqueous solution of fluorine-containing water repellent, by soaking-roll-baking process, obtain the waterproof non-woven filter material;
The preparation of b, foam latex: silicone-modified polyacrylate emulsion, neopelex, hydroxyethylcellulose, thickener, water are evenly mixed, and injecting compressed air obtains foam latex by the mechanical shearing effect;
C, foam latex are transferred to the typing of waterproof non-woven filter material: adopt blade coating technique that described foam latex is transferred to described waterproof non-woven filter material surface, the dry rear surface fine of realizing non-woven filter material.
2. the method that becomes more meticulous of a kind of non-woven filter material surface according to claim 1, it is characterized in that: among the described step a, non-woven filter material is terylene spun-bonded non-weaving cloth or polyamide fibre spun-bonded non-woven, and average pore size is 50 ~ 90 microns; The aqueous solution of fluorine-containing water repellent, by the water dilution, the mass concentration of the control fluorine-containing water repellent aqueous solution is 5%-35%; Soak-roll-baking process, dip time is 3-10 minute, and the padding machine pick-up is 2-5%, and stoving temperature is 80-120 ℃, and the time of curing is 20-60 second.
3. the method that becomes more meticulous of a kind of non-woven filter material surface according to claim 1, it is characterized in that: among the described step b, the solid content of silicone-modified polyacrylate emulsion is 60%-80%; Thickener FTP; The mass fraction of silicone-modified polyacrylate emulsion, neopelex, hydroxyethylcellulose, thickener, water is 1:0.05 ~ 0.15:0.05 ~ 0.25:0.025 ~ 0.05:1 ~ 4.
4. the method that becomes more meticulous of a kind of non-woven filter material surface according to claim 1 is characterized in that: among the described step c, and the waterproof non-woven filter material behind the blade coating, grammes per square metre is 100 ~ 300g/m
2Baking temperature is 130 ~ 150 ℃, and be 10 ~ 40 seconds drying time.
5. the method that becomes more meticulous of a kind of non-woven filter material surface according to claim 1, it is characterized in that: by the non-woven filter material after the surface fine processing, average pore size is down to 5 ~ 20 microns, is 56 ~ 68% to the filter efficiency of 0.3 micron grain size particle, and filtration resistance is 75 ~ 90Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403430.9A CN102888753B (en) | 2012-10-22 | 2012-10-22 | Method for surface refinement of nonwoven filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403430.9A CN102888753B (en) | 2012-10-22 | 2012-10-22 | Method for surface refinement of nonwoven filter material |
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| Publication Number | Publication Date |
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| CN102888753A true CN102888753A (en) | 2013-01-23 |
| CN102888753B CN102888753B (en) | 2014-05-07 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820999A (en) * | 2014-02-27 | 2014-05-28 | 江苏东方滤袋有限公司 | Finishing method for bag type dedusting material and prepared dedusting material |
| CN104928931A (en) * | 2015-07-08 | 2015-09-23 | 常州市武进常友无纺布制品厂 | Non-woven fabric for dust collector filtering bag |
| CN105032039A (en) * | 2015-08-26 | 2015-11-11 | 浙江地球村环保科技有限公司 | Novel bamboo fiber air filtration material and preparation method thereof |
| CN106492656A (en) * | 2016-10-31 | 2017-03-15 | 上海佰奥聚新材料科技有限公司 | A kind of porous foam filter membrane |
| CN106811974A (en) * | 2016-12-27 | 2017-06-09 | 科林环保技术有限责任公司 | A kind of technique for improving netted glass fiber filter material skeleton |
| CN106811982A (en) * | 2016-12-27 | 2017-06-09 | 科林环保技术有限责任公司 | A kind of manufacture craft of middle low temperature filtrate |
| CN109464849A (en) * | 2018-12-20 | 2019-03-15 | 合肥合意环保科技工程有限公司 | A kind of two-ply foam coating air filting material, preparation method and application |
| CN116173621A (en) * | 2023-02-16 | 2023-05-30 | 江苏奥凯环境技术有限公司 | Aramid fiber filter material for ultralow emission and production process thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820999A (en) * | 2014-02-27 | 2014-05-28 | 江苏东方滤袋有限公司 | Finishing method for bag type dedusting material and prepared dedusting material |
| CN104928931A (en) * | 2015-07-08 | 2015-09-23 | 常州市武进常友无纺布制品厂 | Non-woven fabric for dust collector filtering bag |
| CN105032039A (en) * | 2015-08-26 | 2015-11-11 | 浙江地球村环保科技有限公司 | Novel bamboo fiber air filtration material and preparation method thereof |
| CN106492656A (en) * | 2016-10-31 | 2017-03-15 | 上海佰奥聚新材料科技有限公司 | A kind of porous foam filter membrane |
| CN106811974A (en) * | 2016-12-27 | 2017-06-09 | 科林环保技术有限责任公司 | A kind of technique for improving netted glass fiber filter material skeleton |
| CN106811982A (en) * | 2016-12-27 | 2017-06-09 | 科林环保技术有限责任公司 | A kind of manufacture craft of middle low temperature filtrate |
| CN106811982B (en) * | 2016-12-27 | 2020-05-22 | 科林环保技术有限责任公司 | Manufacturing process of medium-low temperature filter material |
| CN109464849A (en) * | 2018-12-20 | 2019-03-15 | 合肥合意环保科技工程有限公司 | A kind of two-ply foam coating air filting material, preparation method and application |
| CN116173621A (en) * | 2023-02-16 | 2023-05-30 | 江苏奥凯环境技术有限公司 | Aramid fiber filter material for ultralow emission and production process thereof |
| CN116173621B (en) * | 2023-02-16 | 2023-09-29 | 江苏奥凯环境技术有限公司 | Aramid fiber filter material for ultralow emission and production process thereof |
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| Publication number | Publication date |
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| CN102888753B (en) | 2014-05-07 |
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