CN105648658A - Preparation method of variable color nanofiber film - Google Patents
Preparation method of variable color nanofiber film Download PDFInfo
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- CN105648658A CN105648658A CN201610213845.8A CN201610213845A CN105648658A CN 105648658 A CN105648658 A CN 105648658A CN 201610213845 A CN201610213845 A CN 201610213845A CN 105648658 A CN105648658 A CN 105648658A
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- preparation
- fibrous membrane
- nano fibrous
- spinning
- changeable colour
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to a preparation method of a variable color nanofiber film, which comprises the following steps: 1, weighing a high polymer by an electronic scale, dissolving the high polymer in an organic solvent, and sufficiently dissolving the high polymer to obtain high polymer solution; 2, weighing an acid-base indicator of which solute mass is 4 percent to 6 percent of that of the high polymer solution by the electronic scale, dissolving the acid-base indicator in the high polymer solution, and sufficiently dissolving the acid-base indicator to obtain bubble electrostatic spinning solution; and 3, setting a proper spinning voltage and receiving distance, and adopting bubble electrostatic spinning to obtain the nanofiber film on a receiving plate. According to the invention, the excellent characteristics of nanofibers are combined with the variable color property of the acid-base indicator, and the color of the obtained nanofiber film can be changed in solution with different pH values. The preparation method is simple in preparation process, low in cost and high in yield, and is convenient for large-scale batch production.
Description
Technical field
The present invention relates to the preparing technical field of functional nano fiber, particularly relate to the preparation method of a kind of changeable colour nano fibrous membrane.
Background technology
Nanofiber has great specific surface area, transverse and longitudinal ratio (slenderness ratio), radius-of-curvature, the extremely strong power that interpenetrates with other materials, nano fibrous membrane has extremely high porosity, fabulous snappiness, adsorptivity, and these significant character make nanofiber have huge application prospect at a lot of key areas.
The color of changeable colour nano fibrous membrane is changed by the change of perception surrounding environment PH value, and this kind of nano fibrous membrane can be applicable to the fields such as food product pack, textile process, organizational project.
There are some defects in traditional nano electrostatic spining technology, output is low, affects relatively big by performances such as solution solubility, viscosity simultaneously, and due to needle diameter less, easily block syringe needle.
Bubble method of electrostatic spinning, as a kind of novel electrospinning process, blows out a large amount of bubbles in a polymer solution by gas, and bubbles burst forms jet, and under the effect of electrostatic force, these jets are stretched, refinement, finally form nanofiber.
Therefore, it is necessary to provide a kind of preparation method utilizing bubble electrostatic spinning technique to prepare changeable colour nano fibrous membrane, obtain a kind of functional nanofiber membrane.
Summary of the invention
In view of this, it is an object of the invention to provide the preparation method of a kind of changeable colour nano fibrous membrane, this nano fibrous membrane can the change of perception surrounding environment PH value, have certain functional.
For achieving the above object, the present invention provides following technical scheme:
A preparation method for changeable colour nano fibrous membrane, it comprises step:
S1: take superpolymer with electronic scale, is dissolved in organic solvent, fully dissolves, obtain high polymeric solution;
S2: the acid base indicator taking high polymeric solution Solute mass 4%��6% with electronic scale, is dissolved in above-mentioned high polymeric solution, fully dissolves, and obtains bubble electrostatic spinning liquid;
S3: spinning voltage is set with receiving distance, adopts bubble electrostatic spinning, obtain nano fibrous membrane on dash receiver.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, in described step S1, described superpolymer is the superpolymer that polyacrylonitrile or polyvinylidene difluoride (PVDF) or polystyrene or polyethersulfone or poly(lactic acid) etc. are insoluble to water.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, in described step S1, described organic solvent is the mixed solvent of N, dinethylformamide or DMAC N,N' dimethyl acetamide or N, dinethylformamide and methylene dichloride.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, in described step S2, described acid base indicator is phenolphthalein or or phenol red or p-xylene phenol is blue or tetrabromo-mcresolsulfonphthalein or tropeolin-D or methyl red or o-cresolsulfonphthalein or sodium diethylaniline-azobenzene sulfonate etc.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, described step S3 carries out bubble electrostatic spinning concrete steps and comprises:
S31: poured into by the spinning solution configured in reservoir and injecting gas, makes it to produce bubble;
S32: the positive and negative electrode that reservoir and dash receiver are connected respectively DC high-voltage power supply, dash receiver aluminium foil covers;
S33: open high-voltage power supply and regulating voltage starts spinning;
S34: after spinning terminates, zeroing high-voltage power supply is also cut off the electricity supply, and then takes off on dash receiver aluminium foil the fiber collected and tunica fibrosa goods.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, in described step S31, under high pressure static electricity, form jet by the bubble produced.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, when carrying out bubble electrostatic spinning in described step S32, the distance adjustment scope between described dash receiver and bubble is 20-30cm.
Preferably, in the preparation method of above-mentioned changeable colour nano fibrous membrane, when carrying out bubble electrostatic spinning in described step S33, described voltage-regulation scope is 15-30kv.
Technique scheme can be found out, superpolymer and acid base indicator are all dissolved in organic solvent by the preparation method of the changeable colour nano fibrous membrane of the embodiment of the present invention, obtain bubble electrostatic spinning liquid, then spinning is carried out, obtain nano fibrous membrane, this nano fibrous membrane can variable color in different PH solution so that nano fibrous membrane has certain functional. Preparation technology of the present invention is simple, cost is low, output is big, is convenient to mass-producing batch production.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing for the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of embodiment of preparation method of changeable colour nano fibrous membrane of the present invention.
Embodiment
The present invention discloses the preparation method of a kind of changeable colour nano fibrous membrane, in preparation process, superpolymer and acid base indicator are all dissolved in organic solvent, obtain bubble electrostatic spinning liquid, then spinning is carried out, obtaining nano fibrous membrane, this nano fibrous membrane can variable color in different PH solution so that nano fibrous membrane has certain functional.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described in detail, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
As shown in Figure 1, the preparation method of a kind of changeable colour nano fibrous membrane of the present invention, it comprises step:
S1: take superpolymer with electronic scale, is dissolved in organic solvent, fully dissolves, obtain high polymeric solution;
S2: the acid base indicator taking high polymeric solution Solute mass 4%��6% with electronic scale, is dissolved in above-mentioned high polymeric solution, fully dissolves, and obtains bubble electrostatic spinning liquid;
S3: suitable spinning voltage is set with receiving distance, adopts bubble electrostatic spinning, obtain nano fibrous membrane on dash receiver.
In described step S1, described superpolymer is the superpolymer that polyacrylonitrile or polyvinylidene difluoride (PVDF) or polystyrene or polyethersulfone or poly(lactic acid) etc. are insoluble to water.
In described step S1, described organic solvent is the mixed solvent of N, dinethylformamide or DMAC N,N' dimethyl acetamide or N, dinethylformamide and methylene dichloride.
In described step S2, described acid base indicator is that phenolphthalein or phenol red or p-xylene phenol is blue or tetrabromo-mcresolsulfonphthalein or tropeolin-D or methyl red or o-cresolsulfonphthalein or sodium diethylaniline-azobenzene sulfonate etc.
Described step S3 carries out bubble electrostatic spinning concrete steps comprise:
S31: poured into by the spinning solution configured in reservoir and injecting gas, makes it to produce bubble;
S32: the positive and negative electrode that reservoir and dash receiver are connected respectively DC high-voltage power supply, dash receiver aluminium foil covers;
S33: open high-voltage power supply and regulating voltage start spinning experiment;
S34: after experiment terminates, zeroing high-voltage power supply is also cut off the electricity supply, and then takes off on dash receiver aluminium foil the fiber collected and tunica fibrosa goods.
In described step S31, under high pressure static electricity, form jet by the bubble produced.
When carrying out bubble electrostatic spinning in described step S32, the distance adjustment scope between described dash receiver and bubble is 20-30cm.
When carrying out bubble electrostatic spinning in described step S33, described voltage-regulation scope is 15-30kv.
Superpolymer and acid base indicator are all dissolved in organic solvent by the present invention, obtain bubble electrostatic spinning liquid, then carry out spinning, obtain nano fibrous membrane, and this nano fibrous membrane can variable color in different PH solution so that nano fibrous membrane has certain functional. Preparation technology of the present invention is simple, cost is low, output is big, is convenient to mass-producing batch production.
The useful effect of the present invention comprises:
(1) superpolymer and acid base indicator are all dissolved in organic solvent by the present invention, then carry out spinning, obtain changeable colour nano fibrous membrane, have necessarily functional.
(2) the present invention utilizes bubble electrostatic spinning, and spinning processes is simple.
Below in conjunction with specific embodiments the technical scheme of the present invention is described in detail.
Embodiment 1
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 2.5g polyacrylonitrile with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.15g phenolphthalein with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 2
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 3.5g polyvinylidene difluoride (PVDF) with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.175g phenolphthalein with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 3
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 5.5g polystyrene with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.22g phenolphthalein with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 4
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 6.25g polyethersulfone with electronic scale, it is dissolved in 25gN, in N-N,N-DIMETHYLACETAMIDE, fully dissolve;
(2) take 0.25g phenolphthalein with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 25V, receiving distance is 20cm.
Embodiment 5
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 2.5g polyacrylonitrile with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.15g tropeolin-D with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 6
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 3.5g polyvinylidene difluoride (PVDF) with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.175g methyl red with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 7
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 5.5g polystyrene with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.22g tetrabromo-mcresolsulfonphthalein with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 25V, receiving distance is 20cm.
Embodiment 8
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 6.25g polyethersulfone with electronic scale, it is dissolved in 25gN, in N-N,N-DIMETHYLACETAMIDE, fully dissolve;
(2) take 0.25g tropeolin-D with electronic scale, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 9
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 2.5g polyacrylonitrile with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.15g with electronic scale phenol red, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 25V, receiving distance is 20cm.
Embodiment 10
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 3.5g polyvinylidene difluoride (PVDF) with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.175g with electronic scale phenol red, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 11
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 5.5g polystyrene with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.22g with electronic scale phenol red, it is dissolved in above-mentioned solution, obtain bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 20V, receiving distance is 20cm.
Embodiment 12
Prepare a kind of method of changeable colour nano fibrous membrane, the steps include:
(1) take 2.5g polyacrylonitrile with electronic scale, it is dissolved in 25gN, in dinethylformamide, fully dissolve;
(2) take 0.15g p-xylene phenol with electronic scale blue, it is dissolved in above-mentioned solution, obtains bubble electrostatic spinning solution;
(3) air bubble spinning: spinning voltage is 25V, receiving distance is 20cm.
To those skilled in the art, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit or the essential characteristic of the present invention, it is possible to realize the present invention in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and right and wrong are restrictive, the scope of the present invention is limited by claims instead of above-mentioned explanation, it is intended that all changes in the implication of the equivalent important document dropping on claim and scope included in the present invention. Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, it is to be understood that, although this specification sheets is described according to enforcement mode, but not each enforcement mode only comprises an independent technical scheme, this kind of narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment through appropriately combined, can also form other enforcement modes that it will be appreciated by those skilled in the art that.
Claims (8)
1. the preparation method of a changeable colour nano fibrous membrane, it is characterised in that: comprise step:
S1: take superpolymer with electronic scale, is dissolved in organic solvent, fully dissolves, obtain high polymeric solution;
S2: the acid base indicator taking high polymeric solution Solute mass 4%��6% with electronic scale, is dissolved in above-mentioned high polymeric solution, fully dissolves, and obtains bubble electrostatic spinning liquid;
S3: spinning voltage is set with receiving distance, adopts bubble electrostatic spinning, obtain nano fibrous membrane on dash receiver.
2. the preparation method of changeable colour nano fibrous membrane according to claim 1, it is characterised in that: in described step S1, described superpolymer is polyacrylonitrile or polyvinylidene difluoride (PVDF) or polystyrene or polyethersulfone or poly(lactic acid).
3. the preparation method of changeable colour nano fibrous membrane according to claim 1, it is characterised in that: in described step S1, described organic solvent is the mixed solvent of N, dinethylformamide or DMAC N,N' dimethyl acetamide or N, dinethylformamide and methylene dichloride.
4. the preparation method of changeable colour nano fibrous membrane according to claim 1, it is characterised in that: in described step S2, described acid base indicator is phenolphthalein or phenol red or p-xylene phenol blue or tetrabromo-mcresolsulfonphthalein or tropeolin-D or methyl red or o-cresolsulfonphthalein or sodium diethylaniline-azobenzene sulfonate.
5. the preparation method of changeable colour nano fibrous membrane according to claim 1, it is characterised in that: carrying out bubble electrostatic spinning in described step S3, concrete steps comprise:
S31: poured into by the spinning solution configured in reservoir and injecting gas, makes it to produce bubble;
S32: the positive and negative electrode that reservoir and dash receiver are connected respectively DC high-voltage power supply, dash receiver aluminium foil covers;
S33: open high-voltage power supply and regulating voltage starts spinning;
S34: after spinning terminates, zeroing high-voltage power supply is also cut off the electricity supply, and then takes off on dash receiver aluminium foil the fiber collected and tunica fibrosa goods.
6. the preparation method of changeable colour nano fibrous membrane according to claim 5, it is characterised in that: in described step S31, under high pressure static electricity, form jet by the bubble produced.
7. the preparation method of changeable colour nano fibrous membrane according to claim 5, it is characterised in that: when carrying out bubble electrostatic spinning in described step S32, the distance adjustment scope between described dash receiver and bubble is 20-30cm.
8. the preparation method of changeable colour nano fibrous membrane according to claim 5, it is characterised in that: when carrying out bubble electrostatic spinning in described step S33, described voltage-regulation scope is 15-30kv.
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| CN106120157A (en) * | 2016-06-30 | 2016-11-16 | 苏州大学 | A kind of preparation method of color nano silvalin |
| CN106404761A (en) * | 2016-07-20 | 2017-02-15 | 北京化工大学 | A method of preparing a highly-sensitive type meat freshness degree detecting and indicating card through an electrostatic spinning process |
| CN111472092A (en) * | 2020-04-22 | 2020-07-31 | 内蒙古农业大学 | Double-indication intelligent label for identifying meat quality and manufacturing method and application thereof |
| CN114209501A (en) * | 2022-01-14 | 2022-03-22 | 苏州大学 | Color development paper diaper and preparation method thereof |
| CN117626534A (en) * | 2024-01-26 | 2024-03-01 | 东华大学 | Solvent response color-changing piezoelectric material and preparation method and application thereof |
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| CN106120157A (en) * | 2016-06-30 | 2016-11-16 | 苏州大学 | A kind of preparation method of color nano silvalin |
| CN106404761A (en) * | 2016-07-20 | 2017-02-15 | 北京化工大学 | A method of preparing a highly-sensitive type meat freshness degree detecting and indicating card through an electrostatic spinning process |
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| CN111472092B (en) * | 2020-04-22 | 2022-04-26 | 内蒙古农业大学 | Double-indication intelligent label for identifying meat quality and manufacturing method and application thereof |
| CN114209501A (en) * | 2022-01-14 | 2022-03-22 | 苏州大学 | Color development paper diaper and preparation method thereof |
| CN117626534A (en) * | 2024-01-26 | 2024-03-01 | 东华大学 | Solvent response color-changing piezoelectric material and preparation method and application thereof |
| CN117626534B (en) * | 2024-01-26 | 2024-05-14 | 东华大学 | Solvent response color-changing piezoelectric material and preparation method and application thereof |
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Application publication date: 20160608 |