CN111455658A - Photochromic cotton fabric and preparation method thereof - Google Patents
Photochromic cotton fabric and preparation method thereof Download PDFInfo
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- CN111455658A CN111455658A CN202010223730.3A CN202010223730A CN111455658A CN 111455658 A CN111455658 A CN 111455658A CN 202010223730 A CN202010223730 A CN 202010223730A CN 111455658 A CN111455658 A CN 111455658A
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- 239000004744 fabric Substances 0.000 title claims abstract description 85
- 229920000742 Cotton Polymers 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 12
- 229920000587 hyperbranched polymer Polymers 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 16
- 239000012153 distilled water Substances 0.000 claims description 14
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 7
- 241000872931 Myoporum sandwicense Species 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B7/00—Mercerising, e.g. lustring by mercerising
- D06B7/08—Mercerising, e.g. lustring by mercerising of fabrics of indefinite length
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/123—Polyaldehydes; Polyketones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to the field of textiles and discloses a photochromic cotton fabric and a preparation method thereof. The method comprises the steps of immersing the pretreated cotton fabric into NaOH solution for mercerizing, and then immersing the cotton fabric into NaIO4Oxidizing in solution, and treating with amino-terminated hyperbranched polymer to increase ammonia in the surface active groups of cotton fabric in addition to hydroxyl groupsTherefore, the POM with the photochromic effect can be tightly connected with the cotton fabric through the hydroxyl and the amino on the surface of the cotton fabric, and the photochromic cotton fabric has good thermal stability, higher fatigue resistance and higher sensitivity of the photochromic reaction. The preparation method is simple in preparation process, low in cost and easy to enlarge production.
Description
Technical Field
The invention relates to the field of textiles, in particular to a photochromic cotton fabric and a preparation method thereof.
Background
The incorporation of photochromic materials on cotton fibers commonly used in apparel manufacturing to impart innovative aesthetic and functional effects to apparel has become a new direction of research. The photochromic materials found at present are of a few kinds, and have the problems of difficult synthesis, high price, poor reusability and stability, etc., and most photochromic fabrics are obtained by doping a photochromic organic component in a dispersed form to obtain a photochromic function, and the methods for permeating the photochromic organic component mainly comprise dyeing, screen printing and dyeing on the surface of grey cloth after attaching a dye to microcapsules containing the photochromic materials. Advanced fiber spinning techniques, such as melt spinning, electrospinning, have also been widely used to produce photochromic synthetic fibers, however, the production of photochromic textiles remains a complex and challenging process.
Compared with organic photochromic materials, inorganic photochromic materials have slower photochromism, but are less susceptible to the environment, and have better light resistance and reusability, so the development of photochromic fabrics by using inorganic photochromic substances is a worthy direction of research. Polyoxometalates (POMs) are a class of inorganic metal oxide clusters of interest 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. The polyoxometallate is tightly combined on the cotton fabric, so that the cotton fabric has photochromic capability and has great significance.
Disclosure of Invention
The invention aims to provide a photochromic cotton fabric and a preparation method thereof, wherein photochromic POMs are uniformly distributed on the surface of the prepared photochromic cotton fabric, and the prepared photochromic cotton fabric has good light resistance and repeated use resistance, good thermal stability, high fatigue resistance and high sensitivity of color change reaction.
In order to solve the technical problem, the invention provides a preparation method of a photochromic cotton fabric, which comprises the following steps:
1) pretreating the cotton fabric to obtain clean cotton fabric;
2) immersing the clean cotton fabric into a NaOH solution with the mass fraction of 10-30% for mercerizing finishing;
3) immersing the mercerized cotton fabric in the step 2) into 1-5% NaIO according to a bath ratio of 1: 30-504In the solution, reacting for 60-180 min in a dark place at 40-80 ℃ to obtain the cotton fabric subjected to oxidation treatment;
4) soaking the cotton fabric subjected to oxidation treatment in distilled water, heating to 60-80 ℃, dropwise adding a cross-linking agent to react for 0.5-1 h, then dropwise adding an aqueous solution of an amino-terminated hyperbranched polymer, continuing to react for 2-10 h, taking out, washing and drying to obtain the cotton fabric with amino on the surface;
5) dissolving polyoxometallate in water, and stirring for 4-10 hours at 60-80 ℃ to obtain a polyoxometallate aqueous solution with the concentration of 10-30 wt%, wherein the polyoxometallate is one of keggin type phosphomolybdate, keggin type phosphotungstate and Dawson type phosphomolybdate;
6) and immersing the cotton fabric with the amino on the surface into the polyoxometallate aqueous solution for 3-6 times, taking out the cotton fabric each time, pre-drying the cotton fabric for 1-2 hours at the temperature of 30-60 ℃, then baking the cotton fabric for 1-2 hours at the temperature of 100-120 ℃, and finally washing and drying the cotton fabric to obtain the photochromic cotton fabric.
Preferably, the pretreatment in step 1) is specifically: soaking the cotton fabric into a NaOH solution with the mass fraction of 2-5% according to the bath ratio of 1:50, washing for 60min at the temperature of 80 ℃, taking out, cleaning and drying.
Preferably, the bath ratio of the immersion in the step 2) is 1: 30-100.
Preferably, the mercerizing finishing in the step 2) is carried out at room temperature, and the mercerizing finishing time is 60-180 min.
Preferably, the mass ratio of the cotton fabric subjected to oxidation treatment in the step 4) to distilled water is 1:30 to 50.
Preferably, the cross-linking agent in the step 4) is a mixed solution of glutaraldehyde and distilled water, wherein the volume ratio of the glutaraldehyde to the distilled water is 1: 5-10.
Preferably, the amino-terminated hyperbranched polymer in the step 4) is HBP-NH2One of HSDA and HBP-HTC.
Preferably, the mass fraction of the aqueous solution of the amino-terminated hyperbranched polymer in the step 4) is 10-30%, and the dropping amount of the aqueous solution of the amino-terminated hyperbranched polymer is 5-20 m L per gram of cotton fabric.
The invention also provides the photochromic cotton fabric prepared by the preparation method. The photochromic cotton fabric contains a large amount of organic electron donors such as hydroxyl (-OH), amino (-NH2) and the like, and forms a charge donating-accepting transfer compound with the POM, and the POM connected on the cotton fabric can generate electron transfer from a ligand to a central metal under the action of light, electricity or heat energy, so that the photochromic phenomenon is caused.
Compared with the prior art, the method disclosed by the invention has the advantages that the pretreated cotton fabric is immersed in NaOH solution for mercerizing treatment and then is immersed in NaIO4The method comprises the steps of carrying out oxidation treatment in a solution, and then carrying out amino-terminated hyperbranched polymer treatment, so that active groups on the surface of the cotton fabric are added with amino groups besides hydroxyl groups, and the POM with the photochromic effect can be tightly connected with the cotton fabric through the hydroxyl groups and the amino groups on the surface of the cotton fabric. The preparation method is simple in preparation process, low in cost and easy to enlarge production.
Detailed Description
For a further understanding of the invention, reference will now be made to the preferred embodiments of the present invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the present invention and is not intended to limit the scope of the claims which follow.
All of the starting materials of the present invention, without particular limitation as to their source, may be purchased commercially or prepared according to conventional methods well known to those skilled in the art.
Example 1
(1) Pretreatment: soaking 1g of cotton fabric into 2 percent NaOH solution according to the bath ratio of 1:50 at the temperature of 80 ℃ for washing for 60min, then taking out, cleaning and drying.
(2) Mercerizing and finishing: immersing the cotton fabric pretreated in the step (1) into a NaOH solution with the mass fraction of 10% according to the bath ratio of 1:30, reacting for 180min at room temperature, taking out, cleaning and drying.
(3) Oxidation treatment: at the temperature of 60 ℃, the mercerized cotton fabric obtained in the step (2) is put into NaIO with the mass fraction of 1% according to the bath ratio of 1:304The solution was left to react for 60min in the dark, then taken out, washed and dried in vacuum.
(4) Soaking the cotton fabric subjected to oxidation treatment in the step (3) in distilled water of 30m L, uniformly stirring, slowly heating to 60 ℃, mixing 2m L glutaraldehyde and 10m L distilled water under the condition of keeping the temperature unchanged, dropwise adding the mixture into the mixture for reaction for 1 hour, and dropwise adding HBP-NH of which the mass fraction is 10% and the mass fraction is 20m L2And (5) continuously reacting the aqueous solution for 2 hours, taking out the cotton fabric, washing and drying the cotton fabric to obtain the cotton fabric with amino on the surface.
(5) 1g of H5PV2Mo10O40Dissolving in 10m L water, stirring at 60 deg.C for 4H to obtain 10 wt% H5PV2Mo10O40An aqueous solution.
(6) Soaking cotton fabric with amino on the surface into H with the concentration of 10 wt%5PV2Mo10O40And (3) taking out the mixture for 3 times, pre-drying the mixture for 2 hours at the temperature of 30 ℃ after each time of taking out, then baking the mixture for 2 hours at the temperature of 120 ℃, washing the mixture with water, and drying the mixture to obtain the photochromic cotton fabric.
Example 2
(1) Pretreatment: soaking 2g of cotton fabric into a NaOH solution with the mass fraction of 5% according to the bath ratio of 1:50 at the temperature of 80 ℃ for washing for 60min, then taking out, cleaning and drying.
(2) Mercerizing and finishing: immersing the cotton fabric pretreated in the step (1) into a NaOH solution with the mass fraction of 20% according to the bath ratio of 1:30, reacting for 75min at room temperature, taking out, cleaning and drying.
(3) Oxidation treatment: at the temperature of 80 ℃, the mercerized cotton fabric obtained in the step (2) is put into NaIO with the mass fraction of 5% according to the bath ratio of 1:504The solution was left to react for 120min in the dark, then taken out, washed and dried in vacuum.
(4) Soaking the cotton fabric subjected to oxidation treatment in the step (3) in 80m L of distilled water, uniformly stirring, slowly heating to 80 ℃, mixing 2m L of glutaraldehyde with 20m L of distilled water under the condition of keeping the temperature unchanged, dropwise adding the mixture into the mixture, reacting for 0.5h, dropwise adding 10m L of HBP-HTC aqueous solution with the mass fraction of 30%, continuing to react for 3h, taking out the cotton fabric, washing and drying to obtain the cotton fabric with amino on the surface.
(5) 2g of H3PW12O40Dissolving in 10m L water, stirring at 80 deg.C for 4H to obtain 20 wt% H3PW12O40An aqueous solution.
(6) Soaking cotton fabric with amino on the surface into H with the concentration of 20 wt%3PW12O40And (3) pre-baking the mixture for 5 times in the aqueous solution at 50 ℃ after each time of taking out, baking the mixture for 2 hours at 100 ℃, washing the mixture with water, and drying the mixture to obtain the photochromic cotton fabric.
Example 3
(1) Pretreatment: 1g of cotton fabric is mixed according to a bath ratio of 1:50, soaking the mixture into a NaOH solution with the mass fraction of 4 percent, washing for 60min, taking out, cleaning and drying.
(2) Mercerizing and finishing: immersing the cotton fabric pretreated in the step (1) into a NaOH solution with the mass fraction of 30% according to the bath ratio of 1:100, reacting for 60min at room temperature, taking out, cleaning and drying.
(3) Oxidation treatment: at the temperature of 40 ℃, the mercerized cotton fabric obtained in the step (2) is put into NaIO with the mass fraction of 4% according to the bath ratio of 1:304And reacting in the solution for 180min in the dark, taking out, washing and drying in vacuum.
(4) Soaking the cotton fabric subjected to oxidation treatment in the step (3) in distilled water of 50m L, uniformly stirring, slowly heating to 70 ℃, mixing 2.5m L glutaraldehyde and 20m L distilled water under the condition of keeping the temperature unchanged, dropwise adding the mixture into the mixture, reacting for 0.5h, dropwise adding HSDA aqueous solution of 8m L mass percent of 20%, continuing to react for 10h, taking out the cotton fabric, washing and drying to obtain the cotton fabric with amino on the surface.
(5) 3g of H6P2W18O62Dissolving in 10m L water, stirring at 70 deg.C for 10 hr to obtain 30 wt% H6P2W18O62An aqueous solution.
(6) Soaking cotton fabric with amino on the surface into H with the concentration of 30 wt%6P2W18O62And (3) pre-baking for 1h at 60 ℃ after taking out the mixture for 6 times in the aqueous solution, baking for 1h at 100 ℃, washing with water, and drying to obtain the photochromic cotton fabric.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A preparation method of photochromic cotton fabric is characterized by comprising the following steps:
1) pretreating the cotton fabric to obtain clean cotton fabric;
2) immersing the clean cotton fabric into a NaOH solution with the mass fraction of 10-30% for mercerizing finishing;
3) immersing the mercerized cotton fabric in the step 2) into 1-5% NaIO according to a bath ratio of 1: 30-504In the solution, reacting for 60-180 min in a dark place at 40-80 ℃ to obtain the cotton fabric subjected to oxidation treatment;
4) soaking the cotton fabric subjected to oxidation treatment in distilled water, heating to 60-80 ℃, dropwise adding a cross-linking agent to react for 0.5-1 h, then dropwise adding an aqueous solution of an amino-terminated hyperbranched polymer, continuing to react for 2-10 h, taking out, washing and drying to obtain the cotton fabric with amino on the surface;
5) dissolving polyoxometallate in water, and stirring for 4-10 hours at 60-80 ℃ to obtain a polyoxometallate aqueous solution with the concentration of 10-30 wt%, wherein the polyoxometallate is one of keggin type phosphomolybdate, keggin type phosphotungstate and Dawson type phosphomolybdate;
6) and immersing the cotton fabric with the amino on the surface into the polyoxometallate aqueous solution for 3-6 times, taking out the cotton fabric each time, pre-drying the cotton fabric for 1-2 hours at the temperature of 30-60 ℃, then baking the cotton fabric for 1-2 hours at the temperature of 100-120 ℃, and finally washing and drying the cotton fabric to obtain the photochromic cotton fabric.
2. The preparation method according to claim 1, wherein the pretreatment in step 1) is specifically: soaking the cotton fabric into a NaOH solution with the mass fraction of 2-5% according to the bath ratio of 1:50, washing for 60min at the temperature of 80 ℃, taking out, cleaning and drying.
3. The method according to claim 1, wherein the bath ratio of the immersion in the step 2) is 1:30 to 100.
4. The preparation method according to claim 1, wherein the mercerizing finish in the step 2) is carried out at room temperature, and the mercerizing finish time is 60-180 min.
5. The preparation method according to claim 1, wherein the mass ratio of the cotton fabric subjected to oxidation treatment in the step 4) to the distilled water is 1:30 to 50.
6. The preparation method according to claim 1, wherein the crosslinking agent in the step 4) is a mixed solution of glutaraldehyde and distilled water, and the volume ratio of the glutaraldehyde to the distilled water is 1: 5-10.
7. The preparation method according to claim 1, wherein the amino-terminated hyperbranched polymer of step 4) is HBP-NH2One of HSDA and HBP-HTC.
8. The preparation method according to claim 1, wherein the mass fraction of the aqueous solution of the amino-terminated hyperbranched polymer in the step 4) is 10-30%, and the dropping amount is 5-20 m L of the aqueous solution of the amino-terminated hyperbranched polymer per gram of cotton fabric.
9. Photochromic cotton fabric prepared according to the preparation method of any one of claims 1 to 8.
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| CN202010223730.3A CN111455658B (en) | 2020-03-26 | 2020-03-26 | Photochromic cotton fabric and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684688A (en) * | 2021-09-14 | 2021-11-23 | 佛山市海邦纺织有限公司 | Preparation method of moisture-absorbing quick-drying antibacterial cotton fabric |
| 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 |
| CN115233443A (en) * | 2022-07-29 | 2022-10-25 | 江苏雅高酒店配套用品有限公司 | Preparation method of photoelectric double-response intelligent color-changing cotton fabric |
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| CN106349749A (en) * | 2016-08-28 | 2017-01-25 | 北京工业大学 | Tungstenic dye composition, preparation method and application thereof |
| US20170198215A1 (en) * | 2014-06-30 | 2017-07-13 | 3M Innovative Properties Company | Photochromic articles containing polyoxometalate derivatives and methods of making same |
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|---|---|---|---|---|
| CN103469427A (en) * | 2013-09-11 | 2013-12-25 | 南通金仕达超微阻燃材料有限公司 | High performance fabric and manufacturing method thereof |
| US20170198215A1 (en) * | 2014-06-30 | 2017-07-13 | 3M Innovative Properties Company | Photochromic articles containing polyoxometalate derivatives and methods of making same |
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