CN105401240A - Nano-fiber preparation method capable of catalyzing exhaust gas and absorbing dust particles and based on static spinning technology - Google Patents
Nano-fiber preparation method capable of catalyzing exhaust gas and absorbing dust particles and based on static spinning technology Download PDFInfo
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- CN105401240A CN105401240A CN201510931802.9A CN201510931802A CN105401240A CN 105401240 A CN105401240 A CN 105401240A CN 201510931802 A CN201510931802 A CN 201510931802A CN 105401240 A CN105401240 A CN 105401240A
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- electrostatic spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
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- Mechanical Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
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Abstract
The invention provides a nano-fiber preparation method capable of catalyzing exhaust gas and absorbing dust particles and based on static spinning technology. The method concretely comprises steps of weighing certain amount of polyvinyl alcohol and then dissolving the same into water, stirring the solution for certain time at certain temperature on a magnetic force stirrer, weighing catalyst capable of catalyzing exhaust gas and inorganic salt, adding the same to the above solution and then stirring the solution for certain time on the magnetic force stirrer, and spinning the prepared solution via static spinning equipment to acquire nano-fibers with two functions. The method for nano-fiber with two functions is advantaged by high efficiency, low cost, high absorption rate and great catalyzing efficiency.
Description
Technical field
The present invention relates to the preparation field of nano material, particularly, relate to and a kind ofly based on electrostatic spinning technique, there is catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate.
Background technology
Electrostatic spinning technique is the technology preparing Nano grade fiber diameters that a kind of simple controlled output is larger, is applicable to synthesis or natural polymers, polymer alloy, with the polymer of nano particle, chromatophore or activating agent, and metal and pottery.Electrostatic spinning is not only applicable to scientific research, is also applied to industry more and more, and in photoelectricity, sensor technology, catalysis, filters and medicine and other fields has very wide application prospect.Electrostatic spinning technique is prepared composite nano fiber and is made up of two or more material, achieve the used in combination of organic/inorganic and multiple polymers material, output is large and simple to operate, composite cellulosic membrane, not only in conjunction with the advantage of each component material, can also be prepared various new structure and possess new capability.
Polyvinyl alcohol (PVA) is macromolecular material, and raw material is easy to get, and the scope of application is extensive.And water-soluble, fiber resistance to acids and bases is good, film good mechanical property, and hydrophily is excellent, nonpoisonous and tasteless, environmental protection.As a kind of macromolecule of common electrostatic spinning, its good clear water mixes with the catalyst with catalytic activity, obtain homogeneous solution as spinning solution, thus obtain the complete and uniform nanofiber of overall distribution, because the larger specific area of nanofiber itself and microcellular structure are for the another fixed suction-operated of dust, add the exhaust gas catalyst adulterating, catalysis can be carried out again, such as carbon monoxide (CO), nitric oxide (NO), sulfur dioxide (SO to some pernicious gases in air
2) etc., thus obtain the nanofiber with absorption and catalysis two kinds of functions.
Summary of the invention
For deficiency of the prior art, the object of this invention is to provide and a kind ofly based on electrostatic spinning technique, there is catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate, the method utilizes the design feature-specific area of nanofiber itself large, it is little that micropore enriches size, the suction-operated effect to dust can be played, add the effect of the exhaust gas catalyst wherein adulterated, make it the function simultaneously with catalytic waste gas.This technology preparation method is simple, and the product stability of gained is good, can meet the general market demand.
In order to realize such object, in the inventive solutions, by common water soluble polymer---based on polyvinyl alcohol, with exhaust gas catalyst---chromium base or manganese-base oxide catalyst are main component, improve electric conductivity by adding inorganic salts, preparation has the nanofiber of two kinds of functions simultaneously.
Have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that, the method comprises the steps:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 60-200 part adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 4-8 hour under 40-70 ° of C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10-20 part of 10-50 part, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1-2 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 10-20kV, syringe is 7-12cm with dash receiver distance, fltting speed 0.1ml/h-0.3ml/h, relative air humidity 35-45%, electrospinning completes to obtain nanofiber.
In above-mentioned steps a, mixing time is 4-8 hour.
In above-mentioned steps a, whipping temp is 40-70 ° of C.
The catalyst with catalytic waste gas effect is chromated oxide or Mn oxide.
Inorganic salts are the one in sodium chloride, potassium chloride, sodium acetate, potassium acetate, sodium sulphate, potassium sulfate.
In above-mentioned steps c, the parameters of electrostatic spinning instrument: on-load voltage is at 10-20kV.
In above-mentioned steps c, the parameters of electrostatic spinning instrument: syringe is 7-12cm with dash receiver distance.
In above-mentioned steps c, the parameters of electrostatic spinning instrument: fltting speed 0.1ml/h-0.3ml/h.
In above-mentioned steps c, the parameters of electrostatic spinning instrument: relative air humidity 35-45%.
Compared with prior art, the present invention has following beneficial effect:
The invention has the advantages that technology preparation method is simple, the product stability of gained is good, the nanofibers of dimensions of preparation is overall evenly, smooth surface without obvious droplet-like, also, better effects if higher than common performance of the adsorbent in the process of Adsorption of Heavy Metal Ions.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 1 gained.
Fig. 2 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 2 gained.
Fig. 3 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 3 gained.
Fig. 4 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 4 gained.
Fig. 5 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 5 gained.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
embodiment 1:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 60 parts adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 4 hours at 40 DEG C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10 parts of 10 parts, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 15kV, and syringe is 8cm with dash receiver distance, fltting speed 0.3ml/h, relative air humidity 35%, electrospinning completes to obtain nanofiber.
Fig. 1 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 1 gained.
embodiment 2:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 80 parts adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 4 hours at 40 DEG C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10 parts of 10 parts, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 2 hours, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 16kV, and syringe is 8cm with dash receiver distance, fltting speed 0.3ml/h, relative air humidity 35%, electrospinning completes to obtain nanofiber.
Fig. 2 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 2 gained.
embodiment 3:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 100 parts adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 3 hours at 40 DEG C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10 parts of 20 parts, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 15kV, and syringe is 8cm with dash receiver distance, fltting speed 0.3ml/h, relative air humidity 35%, electrospinning completes to obtain nanofiber.
Fig. 3 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 3 gained.
embodiment 4;
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 120 parts adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 2 hours at 60 DEG C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10 parts of 15 parts, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 18kV, and syringe is 9cm with dash receiver distance, fltting speed 0.3ml/h, relative air humidity 35%, electrospinning completes to obtain nanofiber.
Fig. 4 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 4 gained.
embodiment 5:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 140 parts adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 2 hours at 50 DEG C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 5 parts of 10 parts, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 20kV, syringe is 10cm with dash receiver distance, fltting speed 0.3ml/h, relative air humidity 35%, electrospinning completes to obtain nanofiber.
Fig. 5 is the stereoscan photograph of the nanofiber of the embodiment of the present invention 5 gained.
Claims (9)
1. have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that, the method comprises the steps:
A. be that in the water of 1000 parts, the polyvinyl alcohol taking 60-200 part adds wherein at mass fraction, be placed on magnetic stirring apparatus and stir 4-8 hour under 40-70 ° of C;
B. take the catalyst of tool catalytic waste gas effect and the inorganic salts of 10-20 part of 10-50 part, join in above-mentioned middle solution, continue to be placed on magnetic stirring apparatus and stir 1-2 hour, spinning mixed solution can be obtained;
C. the solution of b gained is put into 5ml syringe, adopt No. 7 syringe needles, utilize existing electrospinning device, the instrument parameter arranged is: on-load voltage is at 10-20kV, syringe is 7-12cm with dash receiver distance, fltting speed 0.1ml/h-0.3ml/h, relative air humidity 35-45%, electrospinning completes to obtain nanofiber.
2. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, and it is characterized in that, in above-mentioned steps a, mixing time is 4-8 hour.
3. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, and it is characterized in that, in above-mentioned steps a, whipping temp is 40-70 ° of C.
4. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, and it is characterized in that, the catalyst with catalytic waste gas effect is chromated oxide or Mn oxide.
5. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that, inorganic salts are the one in sodium chloride, potassium chloride, sodium acetate, potassium acetate, sodium sulphate, potassium sulfate.
6. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that, in above-mentioned steps c, and the parameters of electrostatic spinning instrument: on-load voltage is at 10-20kV.
7. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that in above-mentioned steps c, the parameters of electrostatic spinning instrument: syringe is 7-12cm with dash receiver distance.
8. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that in above-mentioned steps c, the parameters of electrostatic spinning instrument: fltting speed 0.1ml/h-0.3ml/h.
9. according to claim 1 a kind ofly have catalytic waste gas and the dual-purpose nanofiber preparation method of adsorption of dust particulate based on electrostatic spinning technique, it is characterized in that in above-mentioned steps c, the parameters of electrostatic spinning instrument: relative air humidity 35-45%.
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| CN201510931802.9A CN105401240B (en) | 2015-12-15 | 2015-12-15 | It is a kind of that catalytic waste gas is had based on electrostatic spinning technique and adsorbs the dual-purpose nanofiber preparation method of dust particle |
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| CN201510931802.9A CN105401240B (en) | 2015-12-15 | 2015-12-15 | It is a kind of that catalytic waste gas is had based on electrostatic spinning technique and adsorbs the dual-purpose nanofiber preparation method of dust particle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805887A (en) * | 2017-10-27 | 2018-03-16 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of electrostatic spinning supported catalyst air filting material and products thereof and application |
| CN112981573A (en) * | 2021-02-04 | 2021-06-18 | 上海工程技术大学 | Preparation facilities of fluoropolymer fully drawn yarn |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455975A (en) * | 2007-12-14 | 2009-06-17 | 北京化工大学 | Porous carbon nanometer fiber-supported nanocrystal catalyst and preparation method thereof |
| CN101880917A (en) * | 2010-02-05 | 2010-11-10 | 西安理工大学 | Method for preparing nano ceramic fibers |
| CN104342783A (en) * | 2013-07-31 | 2015-02-11 | 国家纳米科学中心 | A nanometer or nanometer porous carbon fiber bundle, a preparing method thereof and applications of the bundle |
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- 2015-12-15 CN CN201510931802.9A patent/CN105401240B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455975A (en) * | 2007-12-14 | 2009-06-17 | 北京化工大学 | Porous carbon nanometer fiber-supported nanocrystal catalyst and preparation method thereof |
| CN101880917A (en) * | 2010-02-05 | 2010-11-10 | 西安理工大学 | Method for preparing nano ceramic fibers |
| CN104342783A (en) * | 2013-07-31 | 2015-02-11 | 国家纳米科学中心 | A nanometer or nanometer porous carbon fiber bundle, a preparing method thereof and applications of the bundle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805887A (en) * | 2017-10-27 | 2018-03-16 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of electrostatic spinning supported catalyst air filting material and products thereof and application |
| CN112981573A (en) * | 2021-02-04 | 2021-06-18 | 上海工程技术大学 | Preparation facilities of fluoropolymer fully drawn yarn |
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