CN104233803A - Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material - Google Patents
Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material Download PDFInfo
- Publication number
- CN104233803A CN104233803A CN201410482998.3A CN201410482998A CN104233803A CN 104233803 A CN104233803 A CN 104233803A CN 201410482998 A CN201410482998 A CN 201410482998A CN 104233803 A CN104233803 A CN 104233803A
- Authority
- CN
- China
- Prior art keywords
- polyphenylene sulfide
- preparation
- weight
- percentage
- basalt fiber
- 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.)
- Pending
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a preparation method of a high-temperature-resistant modified basalt fiber/polyphenylene sulfide composite filter material. The preparation method comprises the following steps: blending linear polyphenylene sulfide and a hyperbranched polyphenylene sulfide to prepare modified polyphenylene sulfide fiber; preparing basalt fiber and the modified polyphenylene sulfide fiber into composite base fabric by a needling technology; mixing a fluoropolymer, metasilicate, metaaluminate, a fluorosilane coupling agent and deionized water, uniformly mixing in ultrasonic, and preparing fluoropolymer emulsion; dipping the composite base fabric into the emulsion, rolling by using a padder, pre-drying, baking, tensioning by using a tension bracket and winding to obtain a finished product. The modified basalt fiber/polyphenylene sulfide composite filter material prepared by the preparation method has good thermal stability, corrosion resistance and relatively strong mechanical strength; the dispersion and the density of the final fiber are improved; the preparation method is simple in preparation process, relatively low in cost and environment-friendly and is applicable to large-scale industrial production.
Description
Technical field
The present invention relates to the preparation method of composite filtering material, particularly relate to the preparation method of a kind of treated basalt fiber/polyphenylene sulfide composite filtering material dip coated.
Background technology
At present, fire resistant filter material has been widely used in industrial circles such as generating, cement, and filtrate is the chief component of gas-solid separating device, and its performance directly determines the quality of filter effect.In order to improve filtering accuracy, people are except constantly improving the preparation technology of filtrate own aborning, also use the hindlimb unload such as dipping, coating and overlay film, be intended to top layer and the internal structure of improving filter material, thus obtain the high efficiency filter material of even structure, dimensionally stable, the performance that wherein filtrate is high temperature resistant and fire-retardant, directly has influence on the service life of filtrate, more and more pay attention to by the producer.
In weaving stoste, the ignition-proof element such as phosphorous, nitrogen, sulphur, can provide the resistance to elevated temperatures of filtrate, but, this series products is not only easily separated out with the binding ability difference of filter media fibre, and can produce toxic gas when burning, and causes environmental pollution, and high expensive, is unfavorable for suitability for industrialized production.
By finding the research of basalt fibre, basalt fibre has high temperature resistant, anti-oxidant and radiation-resistant feature, can be widely used in filtrate and produce.The DIMENSIONAL STABILITY be compounded with under material at high temperature can be effectively improved with basalt fibre/polyphenylene sulfide for base cloth manufactures compound filter cloth, also its acid-fast alkali-proof can be improved simultaneously.But in actual machine-shaping process, the polyphenylene sulfide of fibre-grade exists that spinning temperature is high, melt viscosity is high, the shortcoming of poor mobile performance, and product color is comparatively dark, wiriness.
In sum, at present in the urgent need to a kind of preparation method of composite filtering material, the high-temperature stability of composite filtering material can be improved, improve its acid-fast alkali-proof and promote that composite merges mutually, thus improve the strainability of finished product.
Summary of the invention
Hyperbranched polyphenylene sulfide has the chemical composition similar with linear polyphenylthioether, all contains phenyl ring and sulphur atom, but chemical constitution is different.By blended according to a certain ratio for the polyphenylene sulfide of hyperbranched polyphenylene sulfide and line style, can while reducing melt viscosity, improving end properties, both maintenances are compatibility preferably.For solving the problems of the technologies described above, process provides the preparation method of a kind of treated basalt fiber/polyphenylene sulfide composite filtering material dip coated.Treated basalt fiber/polyphenylene sulfide composite filtering material is prepared by adding hyperbranched polyphenylene sulfide, and in surface coating emulsion, add fire retardant metasilicate, meta-aluminate, improve the high-temperature stability of composite filtering material, acid-fast alkali-proof, promote to be combined with each other between composite bed, and improve dispersiveness and the compactness extent of fiber.
For achieving the above object, technical scheme provided by the present invention is:
A preparation method for resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material, comprising:
1) by linear polyphenylene sulfide and hyperbranched polyphenylene sulfide co-blended spinning, modified polyphenyl thioether fibre is made;
2) basalt fibre and described modified polyphenyl thioether fibre are made compound base fabric by needling technique;
3) fluoropolymer, metasilicate, meta-aluminate, fluorine containing silane coupling agent and deionized water are mixed, ultrasonic mixing, makes fluoropolymer emulsion;
4) described compound base fabric is immersed in described emulsion, through padding machine roll compacting, preliminary drying, bake, the technique of tension bracket and winding makes finished product.
Further, step 1) described in the weight ratio of linear polyphenylene sulfide and hyperbranched polyphenylene sulfide be 9:1-4:1; Step 2) described in the weight ratio of basalt fibre and described modified polyphenyl thioether fibre be 7:4-1:1; Step 3) described in the percentage by weight of fluoropolymer be 5-20%, the percentage by weight of metasilicate is 10-20%, the percentage by weight of meta-aluminate is 1-10%, the percentage by weight of fluorine containing silane coupling agent is 1-5%, surplus is deionized water.
Further, step 1) described in the weight ratio of linear polyphenylene sulfide and hyperbranched polyphenylene sulfide be 6:1; Step 2) described in the weight ratio of basalt fibre and described modified polyphenyl thioether fibre be 1.25:1; Step 3) described in the percentage by weight of fluoropolymer be 15%, the percentage by weight of metasilicate is 15%, the percentage by weight of meta-aluminate is 5%, the percentage by weight of fluorine containing silane coupling agent is 3%, surplus is deionized water.
Further, described fluoropolymer is the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer or polyvinyl fluoride.
Further, described metasilicate is sodium metaaluminate, and meta-aluminate is sodium metaaluminate.
Further, described hyperbranched polyphenylene sulfide joins in the 1-METHYLPYRROLIDONE of 0.8M by two chloro thiophenols of 50mmol and the Anhydrous potassium carbonate of 100mmol, be heated to 150 DEG C, be incubated 8.5 hours, after product hydrochloric acid washing and filtering, add oxolane and dissolve, hexane extraction, filtering drying is made, and the degree of polymerization is 8-12.
Adopt technique scheme, beneficial effect of the present invention has:
1. base cloth in the present invention uses hyperbranched polyphenylene sulfide and linear polyphenylene sulfide cospin fiber, the polyphenylene sulfide that its crystallization temperature and crystallization rate are high and linear merely, therefore its heat endurance, flow leveling and smooth degree is improved, the outward appearance of finished fiber is more bright and clean simultaneously, is easier to processing.
2. adopt basalt to make Ji Bu, because basalt fibre has high temperature resistant, anti-oxidant and radiation-resistant feature, the binding ability of itself and face coat is stronger, after surface coating fluoropolymer, surrounding annulus is adhered degree and improves, and makes fibre net structure become finer and close, increase the degree of roughness of smooth fiber surface, facilitate dust in flue gas to enter between filtrate, increase filtrate running resistance, improve strainability and the mechanical property of filtrate.
3. the present invention by adding meta-aluminate and metasilicate in face coat emulsion, the binding ability of itself and modification basalt/polyphenylene sulfide ether cloth is stronger, strengthen the stability of filtrate, and produce free of contamination product when running into vitriolated gas, meet the requirement of environmental protection while raising flame-proof heat-resistant performance.
4. by preparation method of the present invention, the composite filtering material of manufacture has good heat endurance, corrosion resistance, stronger mechanical strength, improves the dispersiveness of finished fiber and compactness extent and manufacturing technique is simple, and cost is lower, is applicable to large-scale industrial production.
Detailed description of the invention
Embodiment 1
Prepare hyperbranched polyphenylene sulfide: the 1-METHYLPYRROLIDONE adding 10g 3,4-bis-chloro thiophenol and 13.4g Anhydrous potassium carbonate and 80mL in 250mL three-necked bottle, is heated to 150 DEG C, insulation 8.5h.Product is with after hydrochloric acid washing and filtering, and add oxolane and dissolve, with hexane extraction, filtering drying, obtain light brown hyperbranched PPS powder, its degree of polymerization is 8-12.
Prepare modified polyphenyl thioether fibre: respectively linear polyphenylene sulfide section and hyperbranched polyphenylene sulfide powder are placed in drying box 130 DEG C of dryings 6 hours, by weight being 4:1 mixing, raw material is put into Minitype twin-screw extrusion machine is blended sends winding, the temperature of spinning is 320 DEG C.
Prepare treated basalt fiber/polyphenylene sulfide composite filtering material base cloth: by modified polyphenyl thioether fibre and basalt fibre shredding mixing, weight ratio is: basalt fibre is 1:1 than modified polyphenyl thioether fibre, carding, cross lapping, pre-needling, main acupuncture, makes filtrate base cloth.
Infusion process coating emulsion process: be the fluoropolymer emulsion of 20% by mass percentage, the sodium metasilicate of 10%, the sodium metaaluminate of 1% and 5% fluorine containing silane coupling agent, surplus be deionized water mixing, mixed by supersonic wave cleaning machine again, be mixed with emulsion.Filtrate base cloth after cleaning is immersed in fluoropolymer emulsion, then by padding machine roll compacting, preliminary drying, temperature is 90 DEG C, bakes, and temperature is 160 DEG C, tension bracket, is wound into finished product, and fluoropolymer is the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer or polyvinyl fluoride.
Embodiment 2
Prepare hyperbranched polyphenylene sulfide: the 1-METHYLPYRROLIDONE adding 10g 3,4-bis-chloro thiophenol and 13.4g Anhydrous potassium carbonate and 80mL in 250mL three-necked bottle, is heated to 150 DEG C, insulation 8.5h.Product is with after hydrochloric acid washing and filtering, and add oxolane and dissolve, with hexane extraction, filtering drying, obtain light brown hyperbranched PPS powder, its degree of polymerization is 8-12.
Prepare modified polyphenyl thioether fibre: respectively linear polyphenylene sulfide section and hyperbranched polyphenylene sulfide powder are placed in drying box 130 DEG C of dryings 6 hours, by weight being 9:1 mixing, raw material is put into Minitype twin-screw extrusion machine is blended sends winding, the temperature of spinning is 320 DEG C.
Prepare treated basalt fiber/polyphenylene sulfide composite filtering material base cloth: by modified polyphenyl thioether fibre and basalt fibre shredding mixing, weight ratio is: basalt fibre is 7:4 than modified polyphenyl thioether fibre, carding, cross lapping, pre-needling, main acupuncture, makes filtrate base cloth.
Infusion process coating emulsion process: be the fluoropolymer emulsion of 5% by mass percentage, the sodium metasilicate of 20%, the sodium metaaluminate of 10% and 1% fluorine containing silane coupling agent, surplus be deionized water mixing, mixed by supersonic wave cleaning machine again, be mixed with emulsion.Filtrate base cloth after cleaning is immersed in fluoropolymer emulsion, then by padding machine roll compacting, preliminary drying, temperature is 90 DEG C, bakes, and temperature is 160 DEG C, tension bracket, is wound into finished product, and fluoropolymer is the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer or polyvinyl fluoride.
Embodiment 3
Prepare hyperbranched polyphenylene sulfide: the 1-METHYLPYRROLIDONE adding 10g 3,4-bis-chloro thiophenol and 13.4g Anhydrous potassium carbonate and 80mL in 250mL three-necked bottle, is heated to 150 DEG C, insulation 8.5h.Product is with after hydrochloric acid washing and filtering, and add oxolane and dissolve, with hexane extraction, filtering drying, obtain light brown hyperbranched PPS powder, its degree of polymerization is 8-12.
Prepare modified polyphenyl thioether fibre: respectively linear polyphenylene sulfide section and hyperbranched polyphenylene sulfide powder are placed in drying box 130 DEG C of dryings 6 hours, by weight being 5:1 mixing, raw material is put into Minitype twin-screw extrusion machine is blended sends winding, the temperature of spinning is 320 DEG C.
Prepare treated basalt fiber/polyphenylene sulfide composite filtering material base cloth: by modified polyphenyl thioether fibre and basalt fibre shredding mixing, weight ratio is: basalt fibre is 1.25:1 than modified polyphenyl thioether fibre, carding, cross lapping, pre-needling, main acupuncture, makes filtrate base cloth.
Infusion process coating emulsion process: be the fluoropolymer emulsion of 15% by mass percentage, resistance to, the sodium metaaluminate of 5% of metasilicic acid of 15% and fluorine containing silane coupling agent, the surplus of 3% be deionized water mixing, mixed by supersonic wave cleaning machine again, be mixed with emulsion.Filtrate base cloth after cleaning is immersed in fluoropolymer emulsion, then by padding machine roll compacting, preliminary drying, temperature is 90 DEG C, bakes, and temperature is 160 DEG C, tension bracket, is wound into finished product, and fluoropolymer is the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer or polyvinyl fluoride.
In embodiment 1,2,3, end properties parameter sees the following form:
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a preparation method for resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material, is characterized in that, comprising:
1) by linear polyphenylene sulfide and hyperbranched polyphenylene sulfide co-blended spinning, modified polyphenyl thioether fibre is made;
2) basalt fibre and described modified polyphenyl thioether fibre are made compound base fabric by needling technique;
3) fluoropolymer, metasilicate, meta-aluminate, fluorine containing silane coupling agent and deionized water are mixed, ultrasonic mixing, makes fluoropolymer emulsion;
4) described compound base fabric is immersed in described emulsion, through padding machine roll compacting, preliminary drying, bake, the technique of tension bracket and winding makes finished product.
2. the preparation method of resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material according to claim 1, is characterized in that, step 1) described in the weight ratio of linear polyphenylene sulfide and hyperbranched polyphenylene sulfide be 9:1-4:1; Step 2) described in the weight ratio of basalt fibre and described modified polyphenyl thioether fibre be 7:4-1:1; Step 3) described in the percentage by weight of fluoropolymer be 5-20%, the percentage by weight of metasilicate is 10-20%, the percentage by weight of meta-aluminate is 1-10%, the percentage by weight of fluorine containing silane coupling agent is 1-5%, surplus is deionized water.
3. the preparation method of resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material according to claim 2, is characterized in that, step 1) described in the weight ratio of linear polyphenylene sulfide and hyperbranched polyphenylene sulfide be 6:1; Step 2) described in the weight ratio of basalt fibre and described modified polyphenyl thioether fibre be 1.25:1; Step 3) described in the percentage by weight of fluoropolymer be 15%, the percentage by weight of metasilicate is 15%, the percentage by weight of meta-aluminate is 5%, the percentage by weight of fluorine containing silane coupling agent is 3%, surplus is deionized water.
4. the preparation method of the resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material according to any one of claim 1-3, is characterized in that, described fluoropolymer is the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer or polyvinyl fluoride.
5. the preparation method of the resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material according to any one of claim 1-3, it is characterized in that, described metasilicate is sodium metaaluminate, and meta-aluminate is sodium metaaluminate.
6. the preparation method of the resistant to elevated temperatures treated basalt fiber/polyphenylene sulfide composite filtering material according to any one of claim 1-3, it is characterized in that, described hyperbranched polyphenylene sulfide joins in the 1-METHYLPYRROLIDONE of 0.8M by two chloro thiophenols of 50mmol and the Anhydrous potassium carbonate of 100mmol, be heated to 150 DEG C, be incubated 8.5 hours, after product hydrochloric acid washing and filtering, add oxolane to dissolve, hexane extraction, filtering drying is made, and the degree of polymerization is 8-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482998.3A CN104233803A (en) | 2014-09-19 | 2014-09-19 | Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482998.3A CN104233803A (en) | 2014-09-19 | 2014-09-19 | Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104233803A true CN104233803A (en) | 2014-12-24 |
Family
ID=52222648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410482998.3A Pending CN104233803A (en) | 2014-09-19 | 2014-09-19 | Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104233803A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088790A (en) * | 2015-09-02 | 2015-11-25 | 四川航天五源复合材料有限公司 | Preparation method of basalt fiber internal wall thermal insulation grid cloth |
| CN105239400A (en) * | 2015-09-02 | 2016-01-13 | 四川航天五源复合材料有限公司 | Basalt fiber internal wall heat preservation gridding cloth |
| CN105239394A (en) * | 2015-09-02 | 2016-01-13 | 四川航天五源复合材料有限公司 | Method of preparing basalt fiber external wall heat preservation gridding cloth |
| CN106268030A (en) * | 2016-08-08 | 2017-01-04 | 浙江省纺织测试研究院 | A kind of corrosion-proof high-temp flue gas composite filter material and preparation method thereof |
| CN106521709A (en) * | 2016-11-29 | 2017-03-22 | 德阳力久云智知识产权运营有限公司 | Basalt fiber special for reinforcing polyphenylene sulfide material and preparation method of basalt fiber |
| CN106928709A (en) * | 2015-12-30 | 2017-07-07 | 广东生益科技股份有限公司 | A kind of polyarylether or polyarylene sulfide composite containing filler, sheet material and the circuit substrate containing it |
| CN107596788A (en) * | 2017-10-23 | 2018-01-19 | 安徽屹翔滤材有限公司 | A kind of preparation method of high-quality basalt fiber filter felt |
| CN107988669A (en) * | 2018-01-15 | 2018-05-04 | 苏州耐德新材料科技有限公司 | A kind of modified polyphenyl thioether sewing thread preparation method and its compound filter bag sewing thread |
| CN112452051A (en) * | 2020-11-04 | 2021-03-09 | 安徽元琛环保科技股份有限公司 | Preparation method of oxidation-resistant acid-alkali-resistant filter material and prepared filter material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286799A (en) * | 2011-08-22 | 2011-12-21 | 阜宁澳洋科技有限责任公司 | Fire-retardant viscose fiber and preparation method thereof |
| CN103706185A (en) * | 2013-12-18 | 2014-04-09 | 上海秋橙新材料科技有限公司 | High-temperature-resistant PPS (polyphenylene sulfite) fiber composite filter felt and preparation method thereof |
-
2014
- 2014-09-19 CN CN201410482998.3A patent/CN104233803A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286799A (en) * | 2011-08-22 | 2011-12-21 | 阜宁澳洋科技有限责任公司 | Fire-retardant viscose fiber and preparation method thereof |
| CN103706185A (en) * | 2013-12-18 | 2014-04-09 | 上海秋橙新材料科技有限公司 | High-temperature-resistant PPS (polyphenylene sulfite) fiber composite filter felt and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周冠辰等: "玄武岩纤维/聚苯硫醚针刺复合滤料的聚四氟乙烯乳液处理", 《纺织学报》, vol. 35, no. 8, 15 August 2014 (2014-08-15), pages 10 - 14 * |
| 田菁等: "超支化聚苯硫醚/聚苯硫醚共混纤维非等温结晶动力学及热性能研究", 《合成纤维》, no. 4, 31 December 2007 (2007-12-31), pages 19 - 24 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088790A (en) * | 2015-09-02 | 2015-11-25 | 四川航天五源复合材料有限公司 | Preparation method of basalt fiber internal wall thermal insulation grid cloth |
| CN105239400A (en) * | 2015-09-02 | 2016-01-13 | 四川航天五源复合材料有限公司 | Basalt fiber internal wall heat preservation gridding cloth |
| CN105239394A (en) * | 2015-09-02 | 2016-01-13 | 四川航天五源复合材料有限公司 | Method of preparing basalt fiber external wall heat preservation gridding cloth |
| CN106928709A (en) * | 2015-12-30 | 2017-07-07 | 广东生益科技股份有限公司 | A kind of polyarylether or polyarylene sulfide composite containing filler, sheet material and the circuit substrate containing it |
| CN106268030A (en) * | 2016-08-08 | 2017-01-04 | 浙江省纺织测试研究院 | A kind of corrosion-proof high-temp flue gas composite filter material and preparation method thereof |
| CN106268030B (en) * | 2016-08-08 | 2018-05-08 | 浙江省纺织测试研究院 | A kind of corrosion-proof high-temp flue gas composite filter material and preparation method thereof |
| CN106521709A (en) * | 2016-11-29 | 2017-03-22 | 德阳力久云智知识产权运营有限公司 | Basalt fiber special for reinforcing polyphenylene sulfide material and preparation method of basalt fiber |
| CN106521709B (en) * | 2016-11-29 | 2018-11-09 | 深圳市高科塑化有限公司 | Special basalt fibre of a kind of polyphenyl thioether material enhancing and preparation method thereof |
| CN107596788A (en) * | 2017-10-23 | 2018-01-19 | 安徽屹翔滤材有限公司 | A kind of preparation method of high-quality basalt fiber filter felt |
| CN107988669A (en) * | 2018-01-15 | 2018-05-04 | 苏州耐德新材料科技有限公司 | A kind of modified polyphenyl thioether sewing thread preparation method and its compound filter bag sewing thread |
| CN112452051A (en) * | 2020-11-04 | 2021-03-09 | 安徽元琛环保科技股份有限公司 | Preparation method of oxidation-resistant acid-alkali-resistant filter material and prepared filter material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104233803A (en) | Dip coating preparation method of modified basalt fiber/polyphenylene sulfide composite filter material | |
| WO2016041099A1 (en) | Method for coating modified polyphenylene sulphide/polytetrachloroethylene on basalt fibre filter material in layers | |
| CN104389178B (en) | The modified polyphenyl thioether of a kind of basalt fibre filter material/polytetrafluoroethylene (PTFE) layered coated method | |
| CN202179905U (en) | High-temperature composite filter material | |
| CN103706185B (en) | High temperature resistant filter felt of PPS fiber composite and preparation method thereof | |
| CN101314091A (en) | Multifunctional macromolecule filter material and preparation method thereof | |
| CN104191738A (en) | Method for preparing modified basalt fiber/polyphenylene sulfide compound filter material through dip coating | |
| CN101596384B (en) | Compound filter material, method and application thereof | |
| CN102634979B (en) | Preparation method for polyphenylene sulfide fiber filter material resisting instant high-temperature oxidization | |
| CN102628222A (en) | Preparation method of pyrohydrolysis-resistant meta-position aramid fiber material | |
| CN102505571A (en) | No-baffle high-temperature-resistant air filter paper and preparation method thereof | |
| CN107604532A (en) | Surface material, filter bag, smoke processing system and the processing method of filter bag | |
| CN107010847B (en) | Glass fiber surface treating agent and application thereof | |
| CN102228764A (en) | Basalt fiber coating film filter material | |
| CN104233817A (en) | Modified PPS (polyphenylene sulfide) and PTFE (polytetrafluoroethylene) layered coating method for glass fiber filter material | |
| CN104963030B (en) | A kind of corrosion-resistant high-toughness high-strength composite fibre and its production technology | |
| CN111111319A (en) | Preparation method of ultra-clean discharge filter material | |
| CN205216405U (en) | Filtering surface material is crossed in acupuncture | |
| CN103467876A (en) | Plastic formula with insulation function | |
| CN103495310A (en) | Finishing process of pyrohydrolysis-resistant polyimide filtering material | |
| CN202181406U (en) | Acid-resisting sewing thread for dedusting cloth bag | |
| CN102839478A (en) | Acid-resistant sewing line for dust collecting bag and manufacturing method thereof | |
| CN111632433A (en) | Basalt fiber composite filter material, preparation method thereof and basalt fiber filter bag | |
| CN108017890B (en) | Flame-retardant bamboo-wound composite product and preparation method thereof | |
| CN205062099U (en) | Blast furnace gas dust bag of steel plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |