CN111074368A - Preparation method of photochromic PVA (polyvinyl alcohol) yarn - Google Patents
Preparation method of photochromic PVA (polyvinyl alcohol) yarn Download PDFInfo
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- CN111074368A CN111074368A CN201911389141.6A CN201911389141A CN111074368A CN 111074368 A CN111074368 A CN 111074368A CN 201911389141 A CN201911389141 A CN 201911389141A CN 111074368 A CN111074368 A CN 111074368A
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- spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/56—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain
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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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
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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
-
- 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
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- 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
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a preparation method of photochromic PVA yarn, which comprises the following steps: step 1, preparing a precursor solution: prepared by dissolving polyoxometallate in polyvinylpyrrolidone (PVP) aqueous solution; step 2, preparing spinning solution: violently stirring the precursor solution prepared in the step 1 at room temperature for 12-36 hours to obtain a spinning solution; step 3, preparing fibers: performing electrostatic spinning on the spinning solution obtained in the step 2 to obtain fibers, applying a constant-temperature thermal field in a spinning interval during electrostatic spinning, and controlling the temperature of a receiving device, wherein the temperature of the constant-temperature thermal field is controlled to be 50-100 ℃, and the temperature of the receiving device is controlled to be-10-0 ℃; step 4, drying and finishing: and (3) drying the fibers obtained in the step (3) at room temperature to 40 ℃ for 6 to 24 hours. The invention uniformly mixes polyoxometallate with photochromic function and polyvinyl alcohol (PVA) spinning solution, and prepares the fiber by electrostatic spinning, so that the material has stronger photochromic property and adjustable height.
Description
Technical Field
The invention relates to the technical field of textile processing, in particular to a preparation method of photochromic PVA yarn.
Background
Photochromic materials, also known as photochromic materials or daylight photochromic materials. The method is simple, namely adding a chemical material such as a photochromic material into a connected raw material, and assisting other chemical substances to be processed in a later stage, so that the photochromic material becomes a colloidal material capable of being printed and dyed. Photochromic materials of this type exhibit no color when not visible indoors, and thus when transferred from outdoors to indoors, such materials can change color when exposed to ultraviolet light. The photochromic material has the particularity of photochromism, and conversely, the photochromic material can return to the original colorless and light-colored color states in a dark or dark environment, and has the repeated variability of photosensitivity.
The photochromic material is doped on the yarn, so that a new direction is provided for weaving the fabric with innovative aesthetic and functional effects, and the fabric woven by the photochromic yarn can be widely applied to multiple fields of ultraviolet protection, safe printing, camouflage, fashion, home decoration and the like. These smart yarns are dyed onto the surface of the yarn by incorporating photochromic organic components in dispersed form, by dyeing, screen printing or attaching dyes containing photochromic microcapsules. Currently advanced fiber spinning techniques, such as melt spinning, electrospinning, have been widely used to produce photochromic synthetic fibers. However, the production of photochromic textiles is still a complex and challenging process, since dyes are often sensitive to heat, which limits the maximum temperature required in the fiber spinning process. The current research is directed to producing photochromic fibers by melt spinning and incorporating photochromic organic dyes, and there is no report on the action of polyoxometallate with photochromic effect on yarns.
Polyoxometalates (POMs) are an attractive class of inorganic metal oxide clusters that are suitable for use as photochromic, electrochromic and thermochromic materials because they can accept various numbers of electrons to produce colored mixed-valence species. However, pure inorganic POMs do not produce reversible photochromic reactions without a carrier.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a preparation method of photochromic PVA yarn, which is characterized in that polyoxometallate with photochromic function and polyvinyl alcohol (PVA) spinning solution are uniformly mixed, and the material has stronger photochromic property and adjustable height by a method of preparing fiber by electrostatic spinning.
In order to realize the purpose of the invention, the invention adopts the following technical scheme: a preparation method of photochromic PVA yarn comprises the following steps:
step 1, preparing a precursor solution: prepared by dissolving polyoxometallate in polyvinylpyrrolidone (PVP) aqueous solution;
step 2, preparing spinning solution: violently stirring the precursor solution prepared in the step 1 at room temperature for 12-36 h to obtain a spinning solution;
step 3, preparing fibers: carrying out electrostatic spinning on the spinning solution obtained in the step 2 to obtain fibers, applying a constant-temperature thermal field in a spinning interval during electrostatic spinning, and controlling the temperature of a receiving device, wherein the temperature of the constant-temperature thermal field is controlled to be 50-100 ℃, and the temperature of the receiving device is controlled to be-10-0 ℃;
step 4, drying and finishing: and (3) drying the fiber obtained in the step (3) at room temperature to 40 ℃ for 6 to 24 hours.
Preferably, in the step 1, the polyvinylpyrrolidone is used in an amount of 10-40% w/v, and the polyoxometallate is used in an amount of 20-80 wt%.
Preferably, the polyoxometallate is Keggin type tungstate, molybdate or Dawson type tungstate.
Preferably, in step 3, the following parameters are adopted for the electrostatic spinning: the relative humidity is 20-70%, the filling speed is 0.4-3 mL/h, the voltage is 10-60 kV, and the distance between the receiving device and the spinneret orifice is 10-40 cm.
Preferably, in step 3, the receiving device is aluminum foil paper or a metal plate.
Compared with the prior art, the preparation method of the photochromic PVA yarn adopting the technical scheme has the following beneficial effects: the preparation method of the photochromic PVA yarn is adopted, polyoxometallate with photochromic function is uniformly mixed with PVA spinning solution, and then the fiber is prepared by an electrostatic spinning method, wherein Polyoxometallate (POM) can accept various numbers of electrons, so that colored mixed valence state substances are generated, large numbers of hydroxyl (-OH) and lone-pair electrons are contained in macromolecules of the PVA fiber, the oxygen atoms of the-OH can enter a vacant valence electron orbit of metal ions, and the metal ions and PVA ligands form coordinate bonds through a hybridization orbit, so that the metal complex fiber is formed.
Detailed Description
The invention is further described below.
The preparation method of the photochromic PVA yarn comprises the following steps: step 1, preparing a precursor solution: the polyoxometallate is prepared by dissolving polyoxometallate in polyvinylpyrrolidone (PVP) aqueous solution, wherein the dosage of the PVP is 10-40% w/v, and the dosage of the polyoxometallate is 20-80 wt%.
Step 2, preparing spinning solution: and (3) violently stirring the precursor solution prepared in the step (1) at room temperature for 12-36 h to obtain the spinning solution.
Step 3, preparing fibers: and (3) performing electrostatic spinning on the spinning solution in the step (2) to obtain fibers, wherein the electrostatic spinning adopts the following parameters: the relative humidity is 20-70%, the filling speed is 0.4-3 mL/h, the voltage is 10-60 kV, and the distance between the receiving device and the spinneret orifice is 10-40 cm. During electrostatic spinning, a constant-temperature thermal field is applied in a spinning section, the temperature of a receiving device is controlled to be 50-100 ℃, the temperature of the receiving device is controlled to be-10-0 ℃, and aluminum foil paper or a metal plate is used as the receiving device.
Step 4, drying and finishing: and (3) drying the fiber obtained in the step (3) at room temperature to 40 ℃ for 6 to 24 hours.
The first embodiment is as follows:
the preparation method of the photochromic PVA yarn comprises the following steps: step 1, adding 10 wt% of H5PV2Mo10O40Dissolving the precursor solution in 10% w/v PVP aqueous solution to prepare a precursor solution; step 2, violently stirring the precursor solution prepared in the step 1 at room temperature for 12 hours to prepare a spinning solution; and 3, performing electrostatic spinning on the spinning solution in the step 2, wherein the electrostatic spinning adopts the following parameters: the relative humidity is 45%, the filling speed is 3mL/h, the voltage is 15kV, the distance between the receiving device and a spinning nozzle is 15cm, a constant-temperature thermal field of 60 ℃ is applied in a spinning interval during electrostatic spinning, the temperature of the metal roller receiving device is controlled to be 0 ℃, and the fiber is prepared; and 4, drying the fiber obtained in the step 3 at room temperature for 8 hours.
Example two:
the preparation method of the photochromic PVA yarn comprises the following steps: step 1, adding 20 wt% of H3PW12O40Dissolving the precursor solution in a PVP aqueous solution with the concentration of 20% w/v to prepare a precursor solution; step 2, violently stirring the precursor solution prepared in the step 1 at room temperature for 24 hours to prepare a spinning solution; and 3, performing electrostatic spinning on the spinning solution in the step 2, wherein the electrostatic spinning adopts the following parameters: the relative humidity is 45%, the filling speed is 1mL/h, the voltage is 18kV, the distance between the receiving device and a spinning nozzle is 30cm, a constant-temperature thermal field of 75 ℃ is applied in a spinning interval during electrostatic spinning, the temperature of the metal roller receiving device is controlled to be-5 ℃, and the fiber is prepared; and 4, drying the fiber obtained in the step 3 at 40 ℃ for 24 hours.
Example three:
the preparation method of the photochromic PVA yarn comprises the following steps: step 1, adding 30 wt% of H6P2W18O62Dissolving the precursor solution in 30% w/v PVP aqueous solution to prepare a precursor solution; step 2, violently stirring the precursor solution prepared in the step 1 at room temperature for 36 hours to prepare a spinning solution; and 3, performing electrostatic spinning on the spinning solution obtained in the step 2, wherein the electrostatic spinning adopts the following parameters: the relative humidity is 20%, the perfusion speed is 0.4mL/h, the voltage is 18kV, the distance between the receiving device and a spinning nozzle is 8cm, a constant-temperature thermal field of 100 ℃ is applied to a spinning interval during electrostatic spinning, the temperature of the metal roller receiving device is controlled to be-10 ℃, and the fiber is prepared; and 4, drying the fiber obtained in the step 3 at 40 ℃ for 6 hours.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (5)
1. A preparation method of photochromic PVA yarn is characterized in that: the method comprises the following steps:
step 1, preparing a precursor solution: prepared by dissolving polyoxometallate in polyvinylpyrrolidone (PVP) aqueous solution;
step 2, preparing spinning solution: violently stirring the precursor solution prepared in the step 1 at room temperature for 12-36 hours to obtain a spinning solution;
step 3, preparing fibers: performing electrostatic spinning on the spinning solution obtained in the step 2 to obtain fibers, applying a constant-temperature thermal field in a spinning interval during electrostatic spinning, and controlling the temperature of a receiving device, wherein the temperature of the constant-temperature thermal field is controlled to be 50-100 ℃, and the temperature of the receiving device is controlled to be-10-0 ℃;
step 4, drying and finishing: and (3) drying the fibers obtained in the step (3) at room temperature to 40 ℃ for 6 to 24 hours.
2. The method for preparing photochromic PVA yarn according to claim 1, wherein: in the step 1, the dosage of the polyvinylpyrrolidone is 10-40% w/v, and the dosage of the polyoxometallate is 20-80 wt%.
3. The method for preparing photochromic PVA yarn according to claim 2, wherein: the polyoxometallate is Keggin type tungstate, molybdate or Dawson type tungstate.
4. The method for preparing photochromic PVA yarn according to claim 1, wherein: in step 3, the electrostatic spinning adopts the following parameters: the relative humidity is 20-70%, the filling speed is 0.4-3 mL/h, the voltage is 10-60 kV, and the distance between the receiving device and the spinneret orifice is 10-40 cm.
5. The method for preparing photochromic PVA yarn according to claim 1, wherein: in step 3, the receiving device is aluminum foil paper or a metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389141.6A CN111074368A (en) | 2019-12-30 | 2019-12-30 | Preparation method of photochromic PVA (polyvinyl alcohol) yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911389141.6A CN111074368A (en) | 2019-12-30 | 2019-12-30 | Preparation method of photochromic PVA (polyvinyl alcohol) yarn |
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| CN111074368A true CN111074368A (en) | 2020-04-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431018A (en) * | 2020-08-03 | 2021-03-02 | 中国科学技术大学先进技术研究院 | Photochromic silk and preparation method thereof |
| CN113512778A (en) * | 2021-05-31 | 2021-10-19 | 南通大学 | Photochromic wig fiber and preparation method thereof |
| CN114775089A (en) * | 2022-05-18 | 2022-07-22 | 江苏金秋弹性织物有限公司 | Preparation method of photochromic elastic ribbon based on polyacid base |
| CN117904742A (en) * | 2024-03-19 | 2024-04-19 | 苏州宝丽迪材料科技股份有限公司 | Photochromic polyvinyl alcohol fiber and preparation method thereof |
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| JPH06242472A (en) * | 1993-02-17 | 1994-09-02 | Idemitsu Kosan Co Ltd | Gel composite film of transition metal oxide and water soluble high polymer and production thereof |
| CN1566259A (en) * | 2003-07-09 | 2005-01-19 | 中国科学院化学研究所 | Method for producing photochromic composite film and the product thereby |
| CN104947226A (en) * | 2015-07-13 | 2015-09-30 | 山东大学 | Method for preparing PAN/POMs composite fiber membrane through electrostatic spinning |
| CN107653574A (en) * | 2017-09-25 | 2018-02-02 | 山东大学 | Polyacid/polymer-based nanometer flexible fiber film and preparation method thereof and photoresponse be erasable and metal reduction in application |
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2019
- 2019-12-30 CN CN201911389141.6A patent/CN111074368A/en active Pending
Patent Citations (4)
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| JPH06242472A (en) * | 1993-02-17 | 1994-09-02 | Idemitsu Kosan Co Ltd | Gel composite film of transition metal oxide and water soluble high polymer and production thereof |
| CN1566259A (en) * | 2003-07-09 | 2005-01-19 | 中国科学院化学研究所 | Method for producing photochromic composite film and the product thereby |
| CN104947226A (en) * | 2015-07-13 | 2015-09-30 | 山东大学 | Method for preparing PAN/POMs composite fiber membrane through electrostatic spinning |
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Non-Patent Citations (1)
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| XIAOFENG LU等: ""Fabrication of luminescent hybrid fibres based on the encapsulation of polyoxometalate into polymer matrices"", 《NANOTECHNOLOGY》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431018A (en) * | 2020-08-03 | 2021-03-02 | 中国科学技术大学先进技术研究院 | Photochromic silk and preparation method thereof |
| CN113512778A (en) * | 2021-05-31 | 2021-10-19 | 南通大学 | Photochromic wig fiber and preparation method thereof |
| CN114775089A (en) * | 2022-05-18 | 2022-07-22 | 江苏金秋弹性织物有限公司 | Preparation method of photochromic elastic ribbon based on polyacid base |
| CN117904742A (en) * | 2024-03-19 | 2024-04-19 | 苏州宝丽迪材料科技股份有限公司 | Photochromic polyvinyl alcohol fiber and preparation method thereof |
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Application publication date: 20200428 |