CN103933953A - Preparation method of adsorbing fiber - Google Patents
Preparation method of adsorbing fiber Download PDFInfo
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- CN103933953A CN103933953A CN201410153343.1A CN201410153343A CN103933953A CN 103933953 A CN103933953 A CN 103933953A CN 201410153343 A CN201410153343 A CN 201410153343A CN 103933953 A CN103933953 A CN 103933953A
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Abstract
The invention discloses a preparation method of an adsorbing fiber. The preparation method comprises the following steps: firstly mechanically stirring and mixing a polymer, a surfactant, a melt index conditioning agent and inorganic fillers to obtain a mixed material; then pouring the mixed material into a feeding hole of a melt-blowing spinning machine, carrying out melt-blowing spinning to obtain the superfine adsorbing fiber with the diameters of 0.6-5 microns. The preparation method has the beneficial effects that the inorganic fillers are uniformly distributed on the surface of the novel adsorbing fiber through binding force, so that the specific surface area of the superfine adsorbing fiber is greatly increased, the adsorbing for pollutants in water is rapid, and the adsorption capacity is high; furthermore, by processing low-concentration organic wastewater by virtue of the superfine adsorbing fiber through an adsorption process, the equipment is simple and is easy to operate, and the application range is wide.
Description
Technical field
The present invention relates to a kind of manufacturing technology of sorbing material, be specifically related to a kind of preparation method of adsorbing fiber, belong to macromolecule material preparation area.
Background technology
Along with the development of modern industry and the raising day by day of people's living standard, also there is larger variation in the mankind's living environment.Industrial expansion has been made huge contribution for expanding economy undoubtedly, but because Some Enterprises lacks reasonably plan and management, also the mankind and society has been caused to the pollution of environment and the pollution of water resource.Environment and water resource and the mankind's existence is closely bound up, thereby exempts from the contaminated sewage purification of simultaneously also will being devoted in protection water quality.
In water pollution control process, the methods such as chemical precipitation method, ion-exchange, solvent extraction, electrochemical reducing, high molecular heavy metals trapping agent method, dialysis, biological adsorption are widely adopted always.Processing and the purification of the current organic wastewater for low concentration generally all adopt the technology such as permeable membrane and superfine fibre.Wherein, infiltrate membrane technology is because it is high to water quality requirement, and processing cost is high, and its range of application is very limited.
Superfine fibre is receiving publicity due to advantages such as its cost is low, efficiency is high, easy popularizations in recent years as a class novel absorption material.Compared with traditional fibre sorbing material, superfine fibre is due to fiber number superfine (diameter is below 5 microns), and the fibre specific area of being made up of superfine fibre can increase greatly, and capillary effect significantly strengthens, absorption property increases substantially, and is conducive to its application at aspects such as purifications of waste water.Superfine fibre of the prior art is by the melt-blown production of plain polypropylene, and to water pollutant absorption non-selectivity, and adsorption capacity is little, generally can only be applied to the polluted-water that water is relatively pure, is subject to water quality impact larger in application process.So, need to research and develop that new adsorption rate is fast, adsorbance is large and prepares easy adsorbing fiber.
Summary of the invention
The object of this invention is to provide a kind of preparation method of adsorbing fiber, the sorbing material of preparation has that adsorption rate is fast, adsorption capacity is large, the good and reusable feature of intensity thus.
To achieve the above object of the invention, the technical solution used in the present invention is:
A preparation method for adsorbing fiber, comprises the following steps: first polymer, surfactant, melt index conditioning agent and inorganic filler are mixed to get to composite material; Then composite material is fed to melt-spraying spinning machine, obtaining diameter through melt-spraying spinning is the fiber of 0.6～5 micron, is adsorbing fiber;
In described composite material, the mass ratio of polymer, surfactant, melt index conditioning agent and inorganic filler is (30～85): (0.5～3): (0～50): (0.1～20);
Described polymer is that molecular weight is 3000～4000 polypropylene, ultra-low density polyethylene, PETG, Merlon, poly-fluorine diene, perfluoroalkyl vinyl ether, polytetrafluoroethylene (PTFE);
Described surfactant is fluorine-containing surfactant or silicon-containing surfactant;
Described inorganic filler is one or more in softex kw modified argil, softex kw modified alta-mud, aerosil and nano-calcium carbonate;
When described melt-spraying spinning, screw rod metering is 2～5 kgs/hr, and extruder temperature is 120～300 DEG C, and nozzle temperature is 150～300 DEG C, and hot air temperature is 150～350 DEG C.
Preferred technical scheme, in described composite material, the mass ratio of polymer, surfactant, melt index conditioning agent and inorganic filler is 65: 2: 25: 8.
Preferred technical scheme, described polymer is that molecular weight is PETG; Described surfactant is fluorine-containing surfactant; Described inorganic filler is softex kw modified argil.
Preferred technical scheme, when described melt-spraying spinning, screw rod metering is 2 kgs/hr, and extruder temperature is 280 DEG C, and nozzle temperature is 295 DEG C, and hot air temperature is 310 DEG C.
In technique scheme, surfactant belongs to prior art, can be fluorine-containing surfactant, such as AF-8850P(Shanghai Yafu Chemistry Co., Ltd.), FCO-183(Hangzhou Ren Shan Science and Technology Ltd. is limited), FORAFAC1157(Dupont), N-ethyl perfluorinated octyl sulfuryl amine (Wuhan hundred Nat Chemical Co., Ltd.s), perfluoro octyl sulfonic acid potassium FT-95(Wuhan hundred Nat Chemical Co., Ltd.s); Also can be silicon-containing surfactant, such as trisiloxanes class surfactant.
The melt index conditioning agent relating in technique scheme can the melt index of telomerized polymer under molten condition, belongs to prior art.For example: melt index conditioning agent YP803, YP806, YP808 (Huizhou Yu Pu Chemical Co., Ltd.), melt index conditioning agent MY-369(Shanghai He Xin Fine Chemical Co., Ltd).
Because technique scheme is used, the present invention compared with prior art has following advantages:
(1) the present invention discloses the Novel adsorption fiber that is compounded with inorganic filler first, be adjusted in polymer fiber and inorganic filler surface by surfactant form cross-linked layer, both ensure dispersed in fibre substrate of inorganic filler, kept again the mechanical strength of fiber; Solve the problem of the difficult polymer-compatible with melting of inorganic filler in prior art, avoided after polymer cure, separating out at fiber surface because of the cluster of inorganic filler in molten polymer, held caducous situation.
(2) the present invention, by polymeric fiber surface compound inorganic stuffing, has further increased the specific area of superfine fibre, thereby has effectively promoted adsorption rate and the adsorption capacity of adsorbing fiber.
(3) preparation method of the present invention is simple, easy operating, and preparation time is short, is applicable to suitability for industrialized production; Prepared adsorbing fiber stable performance, is applicable to the purification of complicated polluted-water and degree of depth polluted-water, and during particularly to typical treatment of dyeing wastewater, COD (COD) reduction reaches 85.71%.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Dyeing waste water has typicalness in sewage disposal, carries out absorption property test in the present invention taking low concentration dyeing waste water as handling object.
Embodiment mono-
By 80 parts of polymer P P, fluorine class surfactant A F-8850P(Shanghai Yafu Chemistry Co., Ltd.) 2 parts, 9.5 parts of 8.5 parts of auxiliary agent melt index conditioning agent YP803 (Huizhou Yu Pu Chemical Co., Ltd.), aerosil mix, then add and in melt-spraying spinning machine, carry out spinning, extruder temperature is 220 DEG C, and nozzle temperature is 235 DEG C, and hot air temperature is 240 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 1.2 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 240 ppm by 560 ppm, and clearance is 57.14%.
Embodiment bis-
By polymer P P60 part, 2 parts of silicon class surfactant heptamethyltrisiloxanes, 9.5 parts of 28.5 parts of auxiliary agent melt index conditioning agent YP803 (Huizhou Yu Pu Chemical Co., Ltd.), aerosil mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 220 DEG C, and nozzle temperature is 235 DEG C, and hot air temperature is 240 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 1.0 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 180 ppm by 560 ppm, and clearance is 67.86%.
Embodiment tri-
By polymer P P50 part, fluorine class surfactant FCO-183(Hangzhou Ren Shan Science and Technology Ltd. is limited) 3 parts, 7 parts of 40 parts of auxiliary agent melt index conditioning agent YP808 (Huizhou Yu Pu Chemical Co., Ltd.), CTMAB (softex kw) modified alta-mud (oiliness) mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 180 DEG C, nozzle temperature is 190 DEG C, hot air temperature is 210 DEG C, screw rod metering be 3 kilograms/time, spray thread.Gained fibre diameter is 0.8 micron, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 300 ppm by 560 ppm, and clearance is 46.43%.
Embodiment tetra-
By polymer P E40 part, surfactant FORAFAC1157(Dupont) 1.5 parts, auxiliary agent melt index conditioning agent closes prosperous MY-369(Shanghai He Xin Fine Chemical Co., Ltd) 6 parts of 50 parts, CTMAB (softex kw) modified alta-mud (oiliness) mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 150 DEG C, and nozzle temperature is 165 DEG C, and hot air temperature is 180 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 1.7 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 120 ppm by 560 ppm, and removal efficiency is 78.57%.
Embodiment five
By polymer P ET65 part, fluorine class surfactant A F-8850P(Shanghai Yafu Chemistry Co., Ltd.) 2 parts, 8 parts of 25 parts of auxiliary agent melt index conditioning agent YP803 (Huizhou Yu Pu Chemical Co., Ltd.), CTMAB (softex kw) modified argil (oiliness) mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 280 DEG C, nozzle temperature is 295 DEG C, hot air temperature is 310 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 0.6 micron, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 80 ppm by 560 ppm, and removal efficiency is 85.71%.
Embodiment six
By polymer P P70 part, 2 parts of fluorine class surfactant N-ethyl perfluorinated octyl sulfuryl amines (Wuhan hundred Nat Chemical Co., Ltd.s), 9.5 parts of 18.5 parts of auxiliary agent melt index conditioning agent YP806 (Huizhou Yu Pu Chemical Co., Ltd.), CTMAB (softex kw) modified argil mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 220 DEG C, nozzle temperature is 235 DEG C, hot air temperature is 240 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 0.7 micron, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 110 ppm by 560 ppm, and removal efficiency is 80.36%.
Embodiment seven
By 80 parts of polymer PCs, 1 part, fluorine class surfactant FT-95--perfluoro octyl sulfonic acid potassium (Wuhan hundred Nat Chemical Co., Ltd.s), 10.5 parts of 8.5 parts of auxiliary agent melt index conditioning agent YP803 (Huizhou Yu Pu Chemical Co., Ltd.), nano-calcium carbonate mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 260 DEG C, and nozzle temperature is 285 DEG C, and hot air temperature is 300 DEG C, screw rod metering be 1.5 kilograms/time, spray thread.Gained fibre diameter is 2.8 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 240 ppm by 560 ppm, and removal efficiency is 57.14%.
Embodiment eight
By 80 parts of polymer P VF, fluorine class surfactant A F-8850P(Shanghai Yafu Chemistry Co., Ltd.) 16.5 parts of 3 parts, CTMAB (softex kw) modified alta-mud (oiliness) mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 320 DEG C, nozzle temperature is 335 DEG C, hot air temperature is 350 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 1.7 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 150 ppm by 560 ppm, and removal efficiency is 73.21%.
Embodiment nine
By 70 parts of polymer perfluoroalkyl vinyl ether PFA, fluorine class surfactant A F-8850P(Shanghai Yafu Chemistry Co., Ltd.) 1 part, 10.5 parts of 28.5 parts of auxiliary agent melt index conditioning agent YP803 (Huizhou Yu Pu Chemical Co., Ltd.), aerosil mix, then enter and in melt-spraying spinning machine, carry out spinning, extruder temperature is 500 DEG C, and nozzle temperature is 535 DEG C, and hot air temperature is 540 DEG C, screw rod metering be 2 kilograms/time, spray thread.Gained fibre diameter is 1.3 microns, and the dyeing waste water of low concentration is processed to (fiber and wastewater quality are than being 1:50), and COD is down to 340 ppm by 560 ppm, and removal efficiency is 39.29%.
Claims (4)
1. a preparation method for adsorbing fiber, is characterized in that, comprises the following steps: first polymer, surfactant, melt index conditioning agent and inorganic filler are mixed to get to compound by mechanical agitation; Then compound is fed to melt-spraying spinning machine, obtaining diameter through melt-spraying spinning is the superfine fibre of 0.6～5 micron, is adsorbing fiber;
In described compound, the mass ratio of polymer, surfactant, melt index conditioning agent and inorganic filler is (30～85): (0.5～3): (0～50): (0.1～20);
Described polymer is that molecular weight is 3000～4000 polypropylene, ultra-low density polyethylene, PETG, Merlon, poly-fluorine diene, perfluoroalkoxy or polytetrafluoroethylene (PTFE);
Described surfactant is fluorine-containing surfactant or silicon-containing surfactant;
Described inorganic filler is one or more in softex kw modified argil, softex kw modified alta-mud, aerosil and nano-calcium carbonate;
When described melt-spraying spinning, screw rod metering is 2～5 kgs/hr, and extruder temperature is 120～300 DEG C, and nozzle temperature is 150～300 DEG C, and hot air temperature is 150～350 DEG C.
2. the preparation method of adsorbing fiber according to claim 1, is characterized in that: in described compound, the mass ratio of polymer, surfactant, melt index conditioning agent and inorganic filler is 65: 2: 25: 8.
3. the preparation method of adsorbing fiber according to claim 1, is characterized in that: described polymer is PETG; Described surfactant is fluorine-containing surfactant; Described inorganic filler is softex kw modified argil.
4. the preparation method of adsorbing fiber according to claim 1, is characterized in that: when described melt-spraying spinning, screw rod metering is 2 kgs/hr, and extruder temperature is 280 DEG C, and nozzle temperature is 295 DEG C, and hot air temperature is 310 DEG C.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988599A (en) * | 2015-07-28 | 2015-10-21 | 苏州科淼新材料有限公司 | Preparation method of composite fiber |
| CN105297181A (en) * | 2015-11-25 | 2016-02-03 | 苏州书瑞环保科技有限公司 | Water treatment sponge material |
| CN105312036A (en) * | 2015-11-25 | 2016-02-10 | 苏州书瑞环保科技有限公司 | Adsorbing material and preparation method and application thereof |
| CN105401245A (en) * | 2015-12-25 | 2016-03-16 | 罗莱生活科技股份有限公司 | Method for preparing copper oxide antibiosis fibers |
| CN107523900A (en) * | 2017-09-26 | 2017-12-29 | 成都新柯力化工科技有限公司 | A kind of efficient catalytic weaving filter cloth and preparation method for sewage disposal |
| CN115537963A (en) * | 2022-10-26 | 2022-12-30 | 湖州草本源新材料有限公司 | Silicon dioxide aerogel fiber, preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342484A (en) * | 2008-06-25 | 2009-01-14 | 天津工业大学 | Method for preparing organic adsorption fiber |
| CN101569854A (en) * | 2009-06-05 | 2009-11-04 | 河南省科学院化学研究所有限公司 | Arsenic adsorbing fiber and synthesizing method thereof |
| CN101698965A (en) * | 2009-10-30 | 2010-04-28 | 天津工业大学 | Absorbing fiber and manufacturing method thereof |
| CN101982580A (en) * | 2010-11-02 | 2011-03-02 | 大连工业大学 | Polyacrylonitrile/hydroxyapatite composite adsorbent fiber and preparation method thereof |
| CN102383212A (en) * | 2011-08-10 | 2012-03-21 | 天津工业大学 | Manufacturing method for organic liquid adsorbing fiber |
-
2014
- 2014-04-16 CN CN201410153343.1A patent/CN103933953B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342484A (en) * | 2008-06-25 | 2009-01-14 | 天津工业大学 | Method for preparing organic adsorption fiber |
| CN101569854A (en) * | 2009-06-05 | 2009-11-04 | 河南省科学院化学研究所有限公司 | Arsenic adsorbing fiber and synthesizing method thereof |
| CN101698965A (en) * | 2009-10-30 | 2010-04-28 | 天津工业大学 | Absorbing fiber and manufacturing method thereof |
| CN101982580A (en) * | 2010-11-02 | 2011-03-02 | 大连工业大学 | Polyacrylonitrile/hydroxyapatite composite adsorbent fiber and preparation method thereof |
| CN102383212A (en) * | 2011-08-10 | 2012-03-21 | 天津工业大学 | Manufacturing method for organic liquid adsorbing fiber |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988599A (en) * | 2015-07-28 | 2015-10-21 | 苏州科淼新材料有限公司 | Preparation method of composite fiber |
| CN105297181A (en) * | 2015-11-25 | 2016-02-03 | 苏州书瑞环保科技有限公司 | Water treatment sponge material |
| CN105312036A (en) * | 2015-11-25 | 2016-02-10 | 苏州书瑞环保科技有限公司 | Adsorbing material and preparation method and application thereof |
| CN105297181B (en) * | 2015-11-25 | 2017-06-06 | 孟森 | A kind of water process sponge material |
| CN105401245A (en) * | 2015-12-25 | 2016-03-16 | 罗莱生活科技股份有限公司 | Method for preparing copper oxide antibiosis fibers |
| CN105401245B (en) * | 2015-12-25 | 2018-05-25 | 罗莱生活科技股份有限公司 | A kind of method for preparing copper oxide anti-bacterial fibre |
| CN107523900A (en) * | 2017-09-26 | 2017-12-29 | 成都新柯力化工科技有限公司 | A kind of efficient catalytic weaving filter cloth and preparation method for sewage disposal |
| CN107523900B (en) * | 2017-09-26 | 2018-10-09 | 上海名冠净化材料股份有限公司 | A kind of efficient catalytic weaving filter cloth and preparation method for sewage disposal |
| CN115537963A (en) * | 2022-10-26 | 2022-12-30 | 湖州草本源新材料有限公司 | Silicon dioxide aerogel fiber, preparation method and application thereof |
| CN115537963B (en) * | 2022-10-26 | 2023-10-27 | 湖州草本源新材料有限公司 | Silica aerogel fiber, preparation method and application thereof |
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Effective date of registration: 20180808 Address after: 215123 3 building, B07 199, Yan Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu. Patentee after: Suzhou can Sheng Environmental Protection Technology Co., Ltd. Address before: 215123 199 Ren Yan Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee before: Soochow University |
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Address after: 215123 3 building, B07 199, Yan Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu. Patentee after: Suzhou canshen Environmental Protection Technology Co.,Ltd. Address before: 215123 3 building, B07 199, Yan Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu. Patentee before: Suzhou can Sheng Environmental Protection Technology Co.,Ltd. |
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