CN103657251A - High silica glass fiber composite high-temperature-resistant filter felt and preparation method thereof - Google Patents
High silica glass fiber composite high-temperature-resistant filter felt and preparation method thereof Download PDFInfo
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- CN103657251A CN103657251A CN201310703066.2A CN201310703066A CN103657251A CN 103657251 A CN103657251 A CN 103657251A CN 201310703066 A CN201310703066 A CN 201310703066A CN 103657251 A CN103657251 A CN 103657251A
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- glass fibre
- temperature
- resistant filter
- filter felt
- resurrection glass
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract description 9
- 239000002131 composite material Substances 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 230000009970 fire resistant effect Effects 0.000 claims description 22
- 239000000839 emulsion Substances 0.000 claims description 21
- 238000007598 dipping method Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000007822 coupling agent Substances 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 8
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 6
- 238000001467 acupuncture Methods 0.000 claims description 3
- 238000006424 Flood reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 16
- 238000001914 filtration Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract 2
- 230000000979 retarding effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 16
- 239000002994 raw material Substances 0.000 description 9
- -1 chemistry Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Landscapes
- Filtering Materials (AREA)
Abstract
The invention discloses a high silica glass fiber composite high-temperature-resistant filter felt and a preparation method thereof. The preparation method of the high silica glass fiber composite high-temperature-resistant filter felt comprises the following steps: (1) vertically interweaving warp basalt yarns and weft polysulfonamide yarns to form base cloth; (2) manufacturing high silica glass fiber into high silica glass fiber layers through an air-laid process or a mechanical-laid process; (3) overlapping the high silica glass fiber layers on the upper surface and the lower surface of the base cloth, and preliminarily pre-punching; (4) main-punching. The prepared high silica glass fiber composite high-temperature-resistant filter felt has the advantages of high-temperature resisting, chemical resisting and inflaming retarding characteristics, high dust removing rate and high strength retention rate after heating for 100 hours, and is applicable to filtering for dust removing in the high-temperature working environment of 300-400 DEG C.
Description
Technical field
The present invention relates to a kind of high temperature filtration felt and preparation method thereof, relate in particular to a kind of resurrection glass fibre complex fire resistant filter felt and preparation method thereof.
Background technology
In China, the develop rapidly of electric power, iron and steel, chemistry, cement, waste incineration etc. " high flow rate, maximum discharge, high pollution " industry, to people, created more rich, easily and efficiently life in, the sustainable development of the natural resources of Ye Dui China, the energy, environment has caused serious threat.In the atmosphere pollution of these social industrial discharges, mainly comprise high-temperature flue gas, dust, SOX, NOX etc.If directly entered in atmosphere without improvement, can directly or indirectly have influence on respiratory system, cardiovascular system, central nervous system, immune system of people etc., and and then threaten the life security of human body.
The main target of industrial dedusting technology is to control the discharge of pollution sources flue gas particles, minimizing atmosphere pollution.The current processing for industrial high temperature flue gas, that mainly takes has wet dedusting, electric precipitation, three kinds of methods of bag-type dusting, wherein sack cleaner is all better than wet dedusting and electric precipitation at aspects such as efficiency of dust collection, disposable and long-term investment expense, equipment requirement and performances, after replacing gradually both and occupy main flow industrial dust collector market.The core of sack cleaner is high temperature resistance filtration material, and the performance quality of high temperature resistance filtration material will be directly connected to efficient, reliable and stable, the long-play of deduster.
Increasingly strict along with domestic and international environmental regulation, countries in the world are more and more paid attention to the exploitation of Filters and application.Home and abroad dust arrester installation has inertial dust separator, cyclone dust collectors, wet scrubber, bag filter, electrostatic precipitator etc. multiple, except specific use, bag filter (hereinafter to be referred as bag hose) and the electrostatic filters of adopting, wherein bag hose accounts for 80% left and right more.The critical component of bag hose is filtering material.Filtering material has cotton, hair, synthetic fibers, glass fibre, ceramic fibre, metallic fiber etc. multiple, and most widely used is glass fibre and synthetic fibers.Glass fibre because temperature tolerance is high, corrosion-resistant, smooth surface, dust peeling property and good stability of the dimension, as filtering material, use existing half a century.
At present, high-temperature filter material industry has to accept challenges, and notice is transferred to " upgrading " from " increment " and come up, specifically comprise promote filtrate strainability, reduce filtration resistance, improve corrosion-and high-temp-resistant performance, increase service life.
Summary of the invention
For above shortcomings in prior art, one of technical problem to be solved by this invention is to provide a kind of preparation method of resurrection glass fibre complex fire resistant filter felt.Two of technical problem to be solved by this invention is to provide a kind of resurrection glass fibre complex fire resistant filter felt.
Technical problem to be solved by this invention is achieved by the following technical solution:
A preparation method for resurrection glass fibre complex fire resistant filter felt, comprises the steps:
(1) by warp thread basalt yarn and weft yarn polysulfonamide yarns vertical interweaving mutually, make base cloth;
(2) resurrection glass fibre is made to resurrection glass fibre layer through air-laid process or mechanical net-forming process;
(3) lapping of base cloth above and below stacks above-mentioned resurrection glass fibre layer, preliminary pre-needling;
(4) main acupuncture, makes described resurrection glass fibre complex fire resistant filter felt.
Further, can also comprise:
(5) impregnation process:
(6) preliminary drying, oven dry and high-temperature shaping.
The impregnation process of step (5) is specially:
The described resurrection glass fibre complex fire resistant filter felt that step (4) is made floods in dipping emulsion;
Technological parameter: dipping temperature 70-90 ℃, dip time 5-20 minute, controls liquid carrying rate (being pick-up) 50-150%;
Described dipping emulsion, is comprised of following materials by weight percentage: 10-14% ptfe emulsion, 1-3% silicone oil, 0.2-0.6% coupling agent, surplus are water.Under normal temperature and pressure, each raw material is uniformly mixed, can makes described dipping emulsion.
In described ptfe emulsion, polytetrafluoroethylene content is 55-65wt%.Ptfe emulsion, can select the ptfe emulsion of the trade mark TE3859 of du pont company.TE3859 ptfe emulsion is milky white liquid, is the dispersion concentrate under nonionic surface active agent exists after tetrafluoroethylene polymerization, polytetrafluoroethylene (PTFE) solids content 60wt%.Through disperseing the goods after concentrate is processed, there is remarkable chemical stability and remarkable resistance to chemical attack ability, as resistance to strong acid, highly basic, strong oxidizer etc., there is outstanding heat-resisting, cold-resistant and wear resistance, long-term serviceability temperature scope is-200～250 ℃.Also have excellent electrical insulating property, and be not subject to the impact of temperature and frequency.
Described silicone oil can be: chain alkyl end-blocking silicone oil DK-285, long-chain alkyl benzene SE2203 silicone oil or Dow Corning Corporation
pMX-200 silicone oil.
Described coupling agent is silane coupler.Preferably, described coupling agent is N-β-(aminoethyl)-γ aminopropyl trimethoxysilane and/or 3-mercaptopropyltriethoxysilane.Optimally, described coupling agent is comprised of 10-30 weight portion N-β-(aminoethyl)-γ aminopropyl trimethoxysilane and 10-30 weight portion 3-mercaptopropyltriethoxysilane.
N-β-(aminoethyl)-γ aminopropyl trimethoxysilane, CAS:1760-24-3.Another name: silane coupler KH-900, the external corresponding trade mark: A-1122 (GE); Z-6020 (DOW CORNING); KBM-603 (Japanese SHIN-ETSU HANTOTAI).
3-mercaptopropyltriethoxysilane, CAS:14814-09-6.Another name: silane coupler 580, the external corresponding trade mark: A-1891 (U.S. GE/OSi company) and KBM-803 (Japanese Shin-Etsu Chemial Co., Ltd).
In step (6), described preliminary drying temperature is 100-120 ℃; Bake out temperature is 130-150 ℃; High-temperature shaping temperature is 210-250 ℃.
In step (6), described preliminary drying, oven dry and high-temperature shaping complete by framing shaping machine.
Air-laid process described in step (2), is state of the art, is specifically as follows:
1. fiber is opened bag; 2. fiber opening-employing air flow delivery fiber, to form the mixed and disorderly even fibre web of arranging of fiber; 3. fiber mixes; 4. fibre impurity-removing; 5. fiber feeds the cylinder of high speed rotary after mixing; 6. fibre shedding; 7. air-flow conveying fiber is condensed into fleece; 8. output fiber net-evenly carried and condense upon on lace curtaining by air-flow, forms distributed in three dimensions, in length and breadth to the little fleece of powerful difference.
Mechanical net-forming process described in step (2), is state of the art, is specifically as follows:
1. shredding: by opener, resurrection glass fibre is carried out to shredding, make it reach fluffy state;
2. combing: send into carding machine and be carded to fibre web;
3. lapping: use lapping machine to carry out lapping.
In the present invention, described resurrection glass fibre Shi You U.S. H.I.Thompson company, on the Research foundation of OWENS CORNING glass fibre company, takes the lead in carrying out suitability for industrialized production.Its manufacture method is to select suitable pristine glass composition, makes the various goods such as yarn, cloth according to simple glass fibre manufacturing technique, through acid leach, by being dissolved in sour component in glass, sweetens off, and makes SiO
2enriching quantity reaches more than 96%, then through thermal sintering sizing, obtains the high silica fiber goods of heatproof.
Resurrection glass fibre is a kind of high-temperature-resistant inorganic fibre, softening point approaches 1700 ℃, can under 900 ℃ of environment, use for a long time, moment can resistance to thousands of degree airflow scourings, thereby, can be used for the purposes such as spacecraft solar heat protection ablator, high temperature resistant thermal insulation fire-proof material, high-temperature insulation material, high-temperature gas gather dust, liquid filtering, metal molten filtration, purification.
The present invention also provides a kind of resurrection glass fibre complex fire resistant filter felt, adopts said method to be prepared from.
The resurrection glass fibre complex fire resistant filter felt that adopts the present invention to prepare, there is high temperature resistant, chemical resistance and fire-retardant characteristic, and after dust is peeled off rate and heating in 100 hours, strength retention is higher, is applicable to dust removal by filtration in 300-400 ℃ of high-temperature work environment.
The specific embodiment
Embodiment 1
The preparation method of resurrection glass fibre complex fire resistant filter felt, comprises the steps:
(1) by warp thread basalt yarn and weft yarn polysulfonamide yarns in air-jet loom vertical interweaving mutually, make base cloth; Control warp count: weft count=1:1, base cloth grammes per square metre 400g/m
2.
(2) by resurrection glass fibre through mechanical net-forming process, make resurrection glass fibre layer;
1. shredding: by opener, resurrection glass fibre is carried out to shredding, make it reach fluffy state; 2. combing: send into carding machine and be carded to fibre web; 3. lapping: use lapping machine to carry out lapping.
(3) lapping of base cloth above and below stacks above-mentioned resurrection glass fibre layer, preliminary pre-needling;
(4) main acupuncture, makes described resurrection glass fibre complex fire resistant filter felt.
The resurrection glass fibre complex fire resistant filter felt finally making, is three layers of layer structure, and ground floor is resurrection glass fibre layer; The second layer is base cloth, and described base cloth is interwoven by warp thread basalt yarn and weft yarn polysulfonamide yarns; The 3rd layer is resurrection glass fibre layer.
Table 1: resurrection glass fibre complex fire resistant filter felt material grammes per square metre table
| ? | Grammes per square metre |
| Resurrection glass fibre layer (ground floor) | 200g/m 2 |
| Base cloth (second layer) | 400g/m 2 |
| Resurrection glass fibre layer (the 3rd layer) | 200g/m 2 |
Embodiment 2
On the resurrection glass fibre complex fire resistant filter felt basis of embodiment 1 preparation, further, increase following step:
(5) impregnation process:
By table 2, corresponding embodiment 2 takes each raw material, under normal temperature and pressure, each raw material is uniformly mixed, and can make described dipping emulsion.
The described resurrection glass fibre complex fire resistant filter felt that step (4) is made carries out impregnation process, technological parameter: 80 ℃ of dipping temperatures, dip time 10 minutes, controls liquid carrying rate (being pick-up) 100% in above-mentioned dipping emulsion.
(6) preliminary drying, oven dry and high-temperature shaping in framing shaping machine, controlling preliminary drying temperature is 110 ℃; Bake out temperature is 140 ℃; High-temperature shaping temperature is 230 ℃.
Table 2 dipping emulsion formula table unit: kilogram
Embodiment 3
Embodiment 3 is substantially the same manner as Example 2, and unique difference is: dipping emulsion formula is different.
By table 2, corresponding embodiment 3 takes each raw material, under normal temperature and pressure, each raw material is uniformly mixed, and can make dipping emulsion.
Embodiment 4
Embodiment 4 is substantially the same manner as Example 2, and unique difference is: dipping emulsion formula is different.
By table 2, corresponding embodiment 4 takes each raw material, under normal temperature and pressure, each raw material is uniformly mixed, and can make dipping emulsion.
Embodiment 5
Embodiment 5 is substantially the same manner as Example 2, and unique difference is: dipping emulsion formula is different.
By table 2, corresponding embodiment 5 takes each raw material, under normal temperature and pressure, each raw material is uniformly mixed, and can make dipping emulsion.
Test case
According to HJ/T324-2006 environmental protection product specification requirement sack cleaner filtrate, to carry out dust and peel off rate and the rear strength retention test of heating in 100 hours, concrete data see the following form.
Table 3: test data table
| ? | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Dust is peeled off rate, % | 85 | 83 | 82 | 69 |
| Strength retention after heating in 100 hours, % | 94 | 92 | 91 | 88 |
Embodiment 2-4 compares with embodiment 5, increases impregnation process, and after dust is peeled off rate and heating in 100 hours, strength retention is all greatly improved.
Especially, embodiment 2 compares with embodiment 3-4, coupling agent N-β-(aminoethyl)-γ aminopropyl trimethoxysilane and the composite use of 3-mercaptopropyltriethoxysilane in the dipping emulsion of impregnation process, Synergistic, after dust is peeled off rate and heating in 100 hours, strength retention is all greatly improved.
Claims (5)
1. a preparation method for resurrection glass fibre complex fire resistant filter felt, comprises the steps:
(1) by warp thread basalt yarn and weft yarn polysulfonamide yarns vertical interweaving mutually, make base cloth;
(2) resurrection glass fibre is made to resurrection glass fibre layer through air-laid process or mechanical net-forming process;
(3) lapping of base cloth above and below stacks above-mentioned resurrection glass fibre layer, preliminary pre-needling;
(4) main acupuncture, makes described resurrection glass fibre complex fire resistant filter felt.
2. the preparation method of resurrection glass fibre complex fire resistant filter felt as claimed in claim 1, is characterized in that, also comprises the steps:
(5) impregnation process;
(6) preliminary drying, oven dry and high-temperature shaping.
3. the preparation method of resurrection glass fibre complex fire resistant filter felt as claimed in claim 2, is characterized in that, the impregnation process of described step (5) is:
The described resurrection glass fibre complex fire resistant filter felt that step (4) is made floods in dipping emulsion;
Described dipping emulsion, is comprised of following materials by weight percentage: 10-14% ptfe emulsion, 1-3% silicone oil, 0.2-0.6% coupling agent, surplus are water;
Described coupling agent is N-β-(aminoethyl)-γ aminopropyl trimethoxysilane and/or 3-mercaptopropyltriethoxysilane, preferably, described coupling agent is comprised of 10-30 weight portion N-β-(aminoethyl)-γ aminopropyl trimethoxysilane and 10-30 weight portion 3-mercaptopropyltriethoxysilane.
4. the preparation method of resurrection glass fibre complex fire resistant filter felt as claimed in claim 2 or claim 3, is characterized in that:
In step (6), described preliminary drying temperature is 100-120 ℃, and bake out temperature is 130-150 ℃, and high-temperature shaping temperature is 210-250 ℃.
5. a resurrection glass fibre complex fire resistant filter felt, adopts in claim 1-4 method described in any one to be prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703066.2A CN103657251B (en) | 2013-12-18 | 2013-12-18 | Resurrection glass fibre complex fire resistant filter felt and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703066.2A CN103657251B (en) | 2013-12-18 | 2013-12-18 | Resurrection glass fibre complex fire resistant filter felt and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103657251A true CN103657251A (en) | 2014-03-26 |
| CN103657251B CN103657251B (en) | 2016-05-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786616A (en) * | 2015-04-23 | 2015-07-22 | 陕西华特新材料股份有限公司 | Preparation method of high-silicon-oxygen composite felt |
| CN106039845A (en) * | 2016-06-30 | 2016-10-26 | 安徽省德邦瓷业有限公司 | Ceramic filter material and preparation method thereof |
| CN107227611A (en) * | 2017-07-06 | 2017-10-03 | 清远凯荣德玻璃纤维有限公司 | Surface conditioning agent and preparation method thereof |
| CN107604669A (en) * | 2017-10-23 | 2018-01-19 | 安徽屹翔滤材有限公司 | A kind of preparation method of glass fiber filter felt |
| CN111188195A (en) * | 2020-01-14 | 2020-05-22 | 广东东方一哥新材料股份有限公司 | Silicon nitride fiber surface treating agent and preparation method thereof |
| CN111389095A (en) * | 2020-04-06 | 2020-07-10 | 台州市皓天产业用布股份有限公司 | High silica polytetrafluoroethylene tectorial membrane filter cloth |
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| CN101612496A (en) * | 2009-07-29 | 2009-12-30 | 东华大学 | High temperature resistance basalt fiber composite filter material and preparation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786616A (en) * | 2015-04-23 | 2015-07-22 | 陕西华特新材料股份有限公司 | Preparation method of high-silicon-oxygen composite felt |
| CN106039845A (en) * | 2016-06-30 | 2016-10-26 | 安徽省德邦瓷业有限公司 | Ceramic filter material and preparation method thereof |
| CN107227611A (en) * | 2017-07-06 | 2017-10-03 | 清远凯荣德玻璃纤维有限公司 | Surface conditioning agent and preparation method thereof |
| CN107604669A (en) * | 2017-10-23 | 2018-01-19 | 安徽屹翔滤材有限公司 | A kind of preparation method of glass fiber filter felt |
| CN111188195A (en) * | 2020-01-14 | 2020-05-22 | 广东东方一哥新材料股份有限公司 | Silicon nitride fiber surface treating agent and preparation method thereof |
| CN111389095A (en) * | 2020-04-06 | 2020-07-10 | 台州市皓天产业用布股份有限公司 | High silica polytetrafluoroethylene tectorial membrane filter cloth |
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| CN103657251B (en) | 2016-05-11 |
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