CN110924138A - Method for loading nano titanium dioxide on textile, textile loaded with nano titanium dioxide and application of textile - Google Patents
Method for loading nano titanium dioxide on textile, textile loaded with nano titanium dioxide and application of textile Download PDFInfo
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- CN110924138A CN110924138A CN201911159911.8A CN201911159911A CN110924138A CN 110924138 A CN110924138 A CN 110924138A CN 201911159911 A CN201911159911 A CN 201911159911A CN 110924138 A CN110924138 A CN 110924138A
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- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000004753 textile Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000011068 loading method Methods 0.000 title claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 67
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 22
- 239000002270 dispersing agent Substances 0.000 claims description 17
- 239000000839 emulsion Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229920000058 polyacrylate Polymers 0.000 claims description 10
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- 239000010452 phosphate Substances 0.000 claims description 6
- XPSQBNPZMNWIPV-UHFFFAOYSA-N ethenoxyperoxyethene Chemical compound C=COOOC=C XPSQBNPZMNWIPV-UHFFFAOYSA-N 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 1
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005054 agglomeration Methods 0.000 abstract description 4
- 230000002776 aggregation Effects 0.000 abstract description 4
- 239000003570 air Substances 0.000 abstract description 3
- 230000003373 anti-fouling effect Effects 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 239000004745 nonwoven fabric Substances 0.000 description 49
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 26
- 229940043267 rhodamine b Drugs 0.000 description 26
- 238000005406 washing Methods 0.000 description 23
- 238000012360 testing method Methods 0.000 description 20
- 238000004042 decolorization Methods 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- 238000002360 preparation method Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 238000002835 absorbance Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000006750 UV protection Effects 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
-
- 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
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/01—Stain or soil resistance
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a method for loading nano titanium dioxide on textiles, the textiles loaded with nano titanium dioxide and application thereof, wherein the method comprises the following steps: s1: preparing a nano titanium dioxide solution: placing nano titanium dioxide particles, an auxiliary agent and a solvent into a container, mixing, adjusting the pH to 5-10, and performing ultrasonic dispersion for 2-5 minutes at 20-40 kHz to obtain a uniform nano titanium dioxide solution; s2: the textile loading process comprises the following steps: placing the textile in a nano titanium dioxide solution, and treating the textile for 0.2-2 h by adopting 20-40 kHz ultrasonic wave at the temperature of 60-95 ℃; s3: plugging, fixing and forming: adding a water-dispersible adhesive for fixing for 0.5-1 h, and drying and curing at 80-120 ℃. The method has low manufacturing cost and high loading fastness of the nano titanium dioxide particles, and solves the problem of agglomeration of the titanium dioxide particles. The textile loaded with the nano titanium dioxide prepared by the method maximally realizes the catalytic action between nano titanium dioxide particles and air and water molecules, and improves the anti-fouling, antibacterial and ultraviolet-resistant performances of the textile.
Description
Technical Field
The invention belongs to the technical field of functional textiles, and particularly relates to a method for loading nano titanium dioxide on a textile, the textile loaded with nano titanium dioxide and application of the textile.
Background
Nano-titanium dioxide, also known as titanium dioxide. The diameter is below 100 nm, and the product is white loose powder. Has the performances of thread resistance, antibiosis, self-cleaning and ageing resistance, and can be used in the fields of cosmetics, functional fibers, plastics, printing ink, coatings, paints, fine ceramics and the like.
With the progress of science and technology and the improvement of the living standard of people, people put forward more and higher requirements on textile products, such as ultraviolet resistance, antibacterial property and the like of clothes. The nano titanium dioxide has the characteristics of no toxicity, no odor, high activity, good thermal stability, difficult decomposition and the like, can endow textiles with excellent ultraviolet resistance, antibacterial function and the like, but the problems of easy agglomeration and difficult dispersion of the directly used nano particles exist, the defects of poor hand feeling, suspension style, moisture absorption and air permeability of the finished textiles exist, and the wide application of the nano materials is influenced. The nano functional finishing agent developed by taking the nano technology as the core is efficient and environment-friendly, and undoubtedly brings revolutionary change to the functional finishing of textiles.
In the prior art, after the interlaced net structure is formed by the directional or random arrangement of the textile short fibers or filaments, the textile is reinforced by thermal adhesion, mechanical or chemical methods to form the textile. The method for loading the chemical fiber textiles by the photocatalyst particles generally comprises the following steps: adding nano titanium dioxide particles in a molten state of chemical fibers, mixing, stretching and cooling to prepare the textile fiber loaded with the nano titanium dioxide particles. The above method has problems in that only the nano titanium dioxide on the surface participates in the photocatalytic action, and the titanium dioxide particles coated inside the fiber are isolated from oxygen and water molecules, and thus the function is lost.
The invention name is as follows: the preparation method of the fiber loaded with the nano titanium dioxide and the fiber obtained by the method have the following application numbers: 201410635047.5, the invention uses the supercritical fluid technology to load the nanometer titanium dioxide on the fiber, but the preparation process is complex, the supercritical fluid technology has high requirements for equipment and production personnel, increases the production cost, and is not beneficial to popularization and application.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art and provides a method for loading nano titanium dioxide on textiles, which adopts an ultrasonic wave embedding technology, has low manufacturing cost, is simple and quick, has high nano titanium dioxide particle loading fastness and simultaneously improves the problem of titanium dioxide particle agglomeration.
The invention also aims to provide a textile loaded with nano titanium dioxide, which maximizes the catalytic action between nano titanium dioxide particles and air and water molecules, and improves the anti-fouling, antibacterial and ultraviolet-resistant performances of the textile.
The invention also aims to provide application of the textile loaded with the nano titanium dioxide, the textile loaded with the nano titanium dioxide particles can be used for non-woven fabrics, or medical applications such as surgical gowns, protective clothing, disinfection coating cloth, masks and partial beauty products which have low requirements on color fastness and washing fastness, the products can not be repeatedly used, and the problem that the color fastness and the adhesive strength of the textile loaded with the nano titanium dioxide particles need to be improved can be solved.
The method of the invention comprises the following steps:
the invention provides a method for loading nano titanium dioxide on a textile, which comprises the following steps:
s1: preparing a nano titanium dioxide solution: placing nano titanium dioxide particles, an auxiliary agent and a solvent into a container, mixing, adjusting the pH to 5-10, and carrying out ultrasonic dispersion for 2-5 minutes at 20-40 kHz to obtain a uniform nano titanium dioxide solution;
s2: the textile loading process comprises the following steps: placing the textile in a nano titanium dioxide solution, and treating the textile for 0.2-2 h at the temperature of 60-95 ℃ by adopting 20-40 kHz ultrasonic waves;
s3: plugging, fixing and forming: adding a water-dispersible adhesive for fixing for 0.5-1 h; and then drying and curing at the temperature of 80-120 ℃ for 30-120 min to obtain the textile loaded with the nano titanium dioxide.
Wherein the solution preparation of step S1 and the textile loading of S2 can be performed simultaneously.
Furthermore, the auxiliary agent comprises a surfactant and a penetrating agent, wherein the dosage of the surfactant is 0.2-1.2% of the mass of the nano titanium dioxide particles, and the dosage of the penetrating agent is 0.2-1.2% of the mass of the nano titanium dioxide particles.
Further, the surfactant is fatty alcohol-polyoxyethylene ether or glycol p-isooctyl phenyl ether, and the penetrating agent is a higher alcohol phosphate penetrating agent or an epoxy vinyl ether penetrating agent.
Further, the method also comprises the step of pretreating the nano titanium dioxide particles, wherein the pretreatment process comprises the following steps: placing nano titanium dioxide particles, a cross-linking agent and a dispersing agent in a pretreatment solvent, wherein the dosage of the cross-linking agent is 10-40% of the mass of the nano titanium dioxide particles, the dosage of the dispersing agent is 10-30% of the mass of the nano titanium dioxide particles, adjusting the pH value to 7-10, and carrying out ultrasonic treatment at 20-40 kHz for 0.5-2 h to obtain the nano titanium dioxide particles subjected to surface modification treatment.
Crosslinking agents are mainly used in high molecular materials (rubbers and thermosetting resins). Because the molecular structure of the high molecular material is like a long line, the high molecular material has low strength and easy breakage without crosslinking, and has no elasticity, the crosslinking agent has the function of generating chemical bonds among linear molecules so as to connect the linear molecules together to form a net structure.
Further, the cross-linking agent is an acrylic cross-linking agent or a silane cross-linking agent; the dispersant is one of polyphosphoric acid super-dispersants, polycarboxylic acid super-dispersants and polyester super-dispersants, and the pretreatment solvent is a methanol solution with the mass fraction of 5-35% or an ethanol solution with the mass fraction of 5-35%.
The dispersant may be specifically one of alkylphenol polyether phosphate and acrylic acid- (meth) acrylate copolymer.
Furthermore, the water-dispersible adhesive is polyacrylate adhesive, and the amount of the water-dispersible adhesive is 1-10% of the mass of the nano titanium dioxide particles.
Further, the water-dispersible adhesive is one or the combination of more than two of polyacrylate emulsion, polymethacrylic acid emulsion, copolymer emulsion of acrylamide and acrylate or copolymer emulsion of acrylate and acrylonitrile.
Further, the nano titanium dioxide particles are anatase titanium dioxide particles, and the particle size of the nano titanium dioxide particles is 10nm-80 nm.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the ultrasonic wave embedding technology, the preparation cost is low, the preparation is simple and quick, the loading fastness of the nano titanium dioxide particles is high, and the problem of titanium dioxide particle agglomeration is solved. The textile loaded with the nano titanium dioxide prepared by the method can maximally realize the catalytic action between nano titanium dioxide particles and air and water molecules, and improve the anti-fouling, antibacterial and ultraviolet-resistant performances of the textile.
The textile loaded with the nano titanium dioxide particles prepared by the method has wide application range, can be used for manufacturing non-woven fabrics or textile products with low requirements on dyeing and washing fastness, such as surgical gowns, protective clothing, disinfection wrapping cloth, masks and partial beauty products, for medical use, can not be repeatedly used, and can avoid the problem that the color fastness and the adhesive strength of the loaded nano titanium dioxide particles need to be improved.
The invention also carries out coupling treatment on the nano titanium dioxide, the obtained nano titanium dioxide has stronger adhesive capacity, and the nano titanium dioxide and the cross-linking agent form covalent bond combination, so that the fabric can obtain multiple composite functional effects of washing resistance, lasting photocatalytic degradation of organic volatile matters, ultraviolet resistance, antibiosis, mildew prevention, deodorization and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Examples 1 to 4
Embodiments 1-4 provide methods of textile loading with nano-titania, the methods comprising the steps of:
pretreatment of nano titanium dioxide: respectively weighing 4.5091g of nano titanium dioxide particles, respectively adding a silane cross-linking agent or an acrylic acid cross-linking agent with the mass being 30% of the mass of the nano titanium dioxide particles and an alkylphenol polyether phosphate or an acrylic acid- (methyl) acrylate copolymer with the mass being 10% of the mass of the nano titanium dioxide particles, wherein the specific proportion is shown in table 1, adding 500mL of ethanol solution with the mass fraction being 20%, adjusting the pH value to 9, carrying out ultrasonic treatment at 30kHz for 1h, and drying to obtain the nano titanium dioxide particles with the surface modified treatment.
Preparing a nano titanium dioxide solution: respectively weighing 1.9822g of improved nano titanium dioxide particles, adding fatty alcohol-polyoxyethylene ether accounting for 0.8% of the mass of the nano titanium dioxide and epoxy vinyl ether penetrant accounting for 0.6% of the mass of the nano titanium dioxide, adjusting the pH to 10 by utilizing organic amine, and ultrasonically dispersing for 5 minutes at 30kHz to obtain a uniform nano titanium dioxide solution;
the textile loading process comprises the following steps: placing 10.2g of cleaned and dried non-woven fabric in the nano titanium dioxide solution, and carrying out ultrasonic treatment at 95 ℃ and 30kHz for 1.5 h;
plugging, fixing and forming: adding polyacrylate emulsion with the mass of 6 percent of the nano titanium dioxide particles for fixing for 0.5h, and drying and curing for 60min at 110 ℃ to obtain the non-woven fabric loaded with the nano titanium dioxide particles.
The non-woven fabrics loaded with the nano titanium dioxide particles obtained in the embodiments 1 to 4 are subjected to load fastness test, the specific test mode is that the non-woven fabrics obtained in the embodiments are respectively placed into steel cups used for testing washing color fastness in the textile industry, a proper amount of steel balls are added to simulate friction loss caused by daily use, and the washing liquid is a common textile washing liquid. After washing and drying, 10g of the non-woven fabrics prepared in different embodiments are respectively put into 50mL of rhodamine B solution for a fading experiment, wherein the concentration of the rhodamine B solution is 10mg/L, and after 2-3 minutes of ultraviolet lamp irradiation, the rhodamine B decoloring rate is over 90 percent through ultraviolet-spectrophotometer measurement, which indicates that the nano titanium dioxide particles on the non-woven fabrics prepared in embodiments 1-4 have good load fastness. Decolorization ratio (R), R = [ (A)0-A）/A0]X 100% of formula (II) A0Absorbance measured for a rhodamine B solution control; a is the absorbance measured after adding the rhodamine B solution into the non-woven fabric, and the measurement result is detailed in a table 1.
Table 1 concrete proportions of pretreatment of nano titanium dioxide particles and results of decolorization ratio in examples 1 to 4
As can be seen from the above table, the decolorization ratio measured was highest when the preferential crosslinking agent was an acrylic crosslinking agent and the dispersant was alkylphenol polyether phosphate.
Examples 5 to 12
In examples 5 to 12, comparison of the decoloring rates of the rhodamine B decoloring test and non-woven fabrics obtained by using cross-linking agents and dispersing agents in different ratios is performed, and the method comprises the following steps:
pretreatment of nano titanium dioxide particles: 4.9390g of nano titanium dioxide particles are weighed, acrylic acid cross-linking agents with the mass being 10%, 30% and 40% of the mass of the nano titanium dioxide particles and alkylphenol polyether phosphate with the mass being 10%, 20% and 30% of the mass of the nano titanium dioxide particles are respectively added, the specific proportion is shown in table 2, 500mL of ethanol solution with the mass fraction being 20% is added, the pH value is adjusted to 9, 30kHz ultrasonic treatment is carried out for 1 hour, and drying is carried out to obtain the modified nano titanium dioxide particles with the modified surfaces.
Preparing a nano titanium dioxide solution: respectively weighing 1.9822g of improved nano titanium dioxide particles, adding fatty alcohol-polyoxyethylene ether accounting for 0.8 percent of the mass of the nano titanium dioxide particles and epoxy vinyl ether penetrant accounting for 0.6 percent of the mass of the nano titanium dioxide, adjusting the pH to 10 by utilizing organic amine, and ultrasonically dispersing for 5 minutes at 30kHz to obtain a uniform nano titanium dioxide solution;
the textile loading process comprises the following steps: putting 10.2g of the cleaned and dried non-woven fabric into the nano titanium dioxide solution, and carrying out ultrasonic treatment at 95 ℃ and 30kHz for 1.5 h;
plugging, fixing and forming: adding polyacrylate emulsion with the mass of 6% of the nano titanium dioxide, fixing for 40min, drying and curing at 110 ℃ for 60min, and obtaining the non-woven fabric loaded with the nano titanium dioxide.
The non-woven fabrics loaded with the nano titanium dioxide obtained in the embodiments 5 to 12 are subjected to load fastness test, the specific test mode is that the non-woven fabrics obtained in the embodiments are respectively placed into steel cups used for testing washing color fastness in the textile industry, a proper amount of steel balls are added to simulate friction loss caused by daily use, and the washing liquid is a common textile washing liquid. After washing and drying, 10g of the non-woven fabrics prepared in different embodiments are respectively put into 50mL of rhodamine B solution for a fading experiment, wherein the concentration of the rhodamine B solution is 10mg/L, and after 2-3 minutes of ultraviolet lamp irradiation, the rhodamine B decoloring rate is over 90 percent through ultraviolet-spectrophotometer measurement, which indicates that the nano titanium dioxide particles on the non-woven fabrics prepared in the embodiments 5-12 have good load fastness. Decolorization ratio (R), R = [ (A)0-A）/A0]X 100% of formula (II) A0Absorbance measured for a rhodamine B solution control; a is the absorbance measured after adding the rhodamine B solution into the non-woven fabric. The results are detailed in Table 2
Table 2 shows the specific ratios of the pretreatment of the nano-titanium dioxide in examples 5 to 12
Combining the results of the decolorization ratios in example 4 and examples 5-12, the higher decolorization ratio can be obtained while the amounts of the cross-linking agent and the dispersant are lower, and the optimal ratio of the amounts of the cross-linking agent and the dispersant in example 11 is preferred.
Examples 13 to 17
The preparation methods of examples 13 to 17 are substantially the same as those of example 11, except that in the pretreatment process of the nano titanium dioxide particles, the pH values used in examples 13 to 17 are 10 and 7, respectively, and the ultrasonic times used in examples 13 to 17 are 0.5h, 1.5h, and 2h, respectively, and the nano titanium dioxide particles subjected to surface modification treatment are obtained by drying. The subsequent steps were the same as in example 4, and the obtained nonwoven fabric was subjected to the rhodamine B decoloring test in the same manner, and the results are shown in table 3.
Table 3 shows the conditions of the pretreatment processes and the finally measured degrees of discoloration in examples 13 to 17
As can be seen from the above table in conjunction with the data of example 4, the decolorization rate is highest when the pH is preferably 9, and further the condition optimization is performed on the ultrasonic time, it can be seen that the decolorization rate gradually increases with the increase of the ultrasonic time, but the ultrasonic time is preferably 1 hour in combination with the energy consumption and the decolorization rate.
Examples 18 to 20
Examples 18 to 20 compare the decoloring rates of different types of surfactants and penetrants on the obtained nano titanium dioxide loaded non-woven fabric.
Preparing a nano titanium dioxide solution: 2.0423g of the improved nano titanium dioxide particles prepared by the method in the embodiment 11 are respectively weighed, different types of surfactants with the mass of 0.8% of the nano titanium dioxide and different types of penetrants with the mass of 0.6% of the nano titanium dioxide are respectively added, the specific proportion is shown in table 4, the pH is adjusted to 10 by utilizing organic amine, and 30kHz ultrasonic dispersion is carried out for 5 minutes to obtain uniform nano titanium dioxide solution;
the textile loading process comprises the following steps: putting 10.2g of the cleaned and dried non-woven fabric into the nano titanium dioxide solution, and carrying out ultrasonic treatment at 95 ℃ and 30kHz for 1.5 h;
plugging, fixing and forming: adding polyacrylate emulsion with the mass of 6% of the nano titanium dioxide, fixing for 40min, drying and curing at 110 ℃ for 60min, and obtaining the non-woven fabric loaded with the nano titanium dioxide.
The non-woven fabric loaded with the nano titanium dioxide obtained in the 18-20 implementation steps is subjected to load fastness test, the specific test mode is that the non-woven fabric obtained in the embodiment is respectively placed into steel cups used for testing washing color fastness in the textile industry, a proper amount of steel balls are added to simulate friction loss caused by daily use, and the washing liquid is a common textile washing liquid. After washing and drying, 10g of the non-woven fabrics prepared in different embodiments are respectively put into 50mL of rhodamine B solution for a fading experiment, wherein the concentration of the rhodamine B solution is 10mg/L, and after 2-3 minutes of ultraviolet lamp irradiation, the rhodamine B decoloring rate is over 90 percent through ultraviolet-spectrophotometer measurement, which indicates that the nano titanium dioxide particles on the non-woven fabrics prepared in the embodiments 18-20 have good load fastness. The results are shown in Table 4.
Table 4 shows the ratio of the nano-titania solution and the decolorization ratio in examples 18 to 20
The results of the measurement in example 11 and examples 18 to 20 show that the decoloring effect of the prepared non-woven fabric is best when the ethylene glycol p-isooctyl phenyl ether is used as the surfactant and the epoxy vinyl ether is used as the penetrant.
Examples 21 to 23
Examples 21-23 compare the effect of different types of water-dispersible binders on the degree of decolorization of the resulting nonwoven fabrics.
The textile loading process comprises the following steps: 10.2g of the nonwoven fabric after cleaning and drying was put into the nano titania solution prepared by the method of example 20, and subjected to ultrasonic treatment at 30kHz for 1.5 hours at 95 ℃;
plugging, fixing and forming: respectively adding 3 different types of water dispersible adhesives with the mass of 6 percent of the nano titanium dioxide for fixing for 40min, and drying and curing for 60min at 110 ℃ to obtain the non-woven fabric loaded with the nano titanium dioxide.
The non-woven fabrics loaded with the nano titanium dioxide obtained in the embodiments 21-23 are subjected to load fastness test, the specific test mode is that the non-woven fabrics obtained in the embodiments are respectively placed in steel cups used for testing washing color fastness in the textile industry, a proper amount of steel balls are added to simulate friction loss caused by daily use, and the washing liquid is a common textile washing liquid. After washing and drying, 10g of the non-woven fabrics prepared in different embodiments are respectively put into 50mL of rhodamine B solution for a fading experiment, wherein the concentration of the rhodamine B solution is 10mg/L, and after 2-3 minutes of ultraviolet lamp irradiation, the rhodamine B decoloring rate is over 95 percent through ultraviolet-spectrophotometer measurement, which indicates that the nano titanium dioxide particles on the non-woven fabrics prepared in the embodiments 21-23 have good load fastness. Decolorization ratio (R), R = [ (A)0-A）/A0]X 100% of formula (II) A0Absorbance measured for a rhodamine B solution control; a is the absorbance measured after adding the rhodamine B solution into the non-woven fabric.
Table 5 shows the specific composition of the water-dispersible binders of different types for plugging and fixing in examples 21-23
Preferably, the water-dispersible binder is therefore chosen such that an optimum decolorization rate of the polyacrylate emulsion is obtained. Examples 24 to 26
Examples 24 to 26 compare the influence of different drying and curing time pairs on the chromaticity of the obtained nonwoven fabric.
The textile loading process comprises the following steps: 10.5g of the nonwoven fabric after cleaning and drying was put into the nano titania solution prepared by the method of example 20, and subjected to ultrasonic treatment at 30kHz for 1.5 hours at 95 ℃;
plugging, fixing and forming: respectively adding polyacrylate emulsion with the mass of 6% of the nano titanium dioxide for fixing for 40min, and respectively drying and curing at 110 ℃ for 30min, 90min and 120min to obtain the non-woven fabric loaded with the nano titanium dioxide.
The non-woven fabrics loaded with the nano titanium dioxide obtained in the examples 24 to 26 are subjected to a load fastness test, and the specific test mode is that the non-woven fabrics obtained in the examples areThe washing liquid is a common textile washing liquid, and is respectively put into a steel cup used for testing washing color fastness in the textile industry, and a proper amount of steel balls are added to simulate friction loss caused by daily use. After washing and drying, 10g of the non-woven fabrics prepared in different embodiments are respectively put into 50mL of rhodamine B solution for a fading experiment, wherein the concentration of the rhodamine B solution is 10mg/L, and after 2-3 minutes of ultraviolet lamp irradiation, the rhodamine B decoloring rate is over 95 percent through ultraviolet-spectrophotometer measurement, which indicates that the nano titanium dioxide particles on the non-woven fabrics prepared in the embodiments 21-23 have good load fastness. Decolorization ratio (R), R = [ (A)0-A）/A0]X 100% of formula (II) A0Absorbance measured for a rhodamine B solution control; a is the absorbance measured after adding the rhodamine B solution into the non-woven fabric.
Table 6 shows the specific schemes of different drying and curing times in examples 24-26
Therefore, preferably, in combination with the embodiment 20, considering the energy loss and the achievement of the decoloring function, the drying and curing time of 60min is preferably selected optimally.
Example 27
This example provides a textile loaded with nano-titania prepared by the method described in example 20, and a medical mask prepared using the textile.
Example 28
This example provides a textile loaded with nano-titania prepared by the method described in example 20, and a surgical garment made from the textile.
Comparative example 1
The preparation method of the comparative example is basically similar to that of the example 20, except that no cross-linking agent is added in the pretreatment process of the nano titanium dioxide, the rest steps are the same as those of the example 20, and the prepared non-woven fabric is subjected to a rhodamine B decolorization test, and the measured decolorization rate is 52.2%.
Comparative examples 2 to 4
The preparation method of the comparative example is basically similar to that of the example 20, except that in the plugging and fixing forming process, the water-dispersible adhesive is not added for fixing in the comparative example 2, the polyvinyl alcohol solution added in the comparative example 3 is used for plugging and fixing, and the chlorinated rubber emulsion is added in the comparative example 4 for fixing, so that the nano titanium dioxide loaded non-woven fabric is prepared.
The nonwoven fabrics loaded with nano titanium dioxide obtained in comparative examples 2 to 4 were subjected to a load fastness test in the same manner as in example 20, and the results are shown in table 6.
Table 7 shows the decoloring rates of the nonwoven fabrics prepared under different plugging and fixing molding conditions in comparative examples 2 to 4
Comparative examples 5 to 6
The preparation method of the comparative example is basically similar to that of the example 20, except that in the preparation process of the nano titanium dioxide solution, the surfactant is not added in the comparative example 5, the penetrating agent is not added in the comparative example 6, and the rest steps are the same as those of the example 20, so that the nano titanium dioxide loaded non-woven fabric is prepared.
The nonwoven fabrics loaded with nano titanium dioxide obtained in comparative examples 5 to 6 were subjected to a load fastness test in the same manner as in example 20, and the results are shown in table 7.
Table 8 shows the decolorization ratio of the nonwoven fabrics prepared by the preparation methods of the different solutions of nano-titanium dioxide of comparative examples 5 to 6
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method for loading nano titanium dioxide on a textile is characterized by comprising the following steps:
s1: preparing a nano titanium dioxide solution: placing nano titanium dioxide particles, an auxiliary agent and a solvent into a container, mixing, adjusting the pH to 5-10, and carrying out ultrasonic dispersion for 2-5 minutes at 20-40 kHz to obtain a uniform nano titanium dioxide solution;
s2: the textile loading process comprises the following steps: placing the textile in a nano titanium dioxide solution, and treating the textile for 0.2-2 h at the temperature of 60-95 ℃ by adopting 20-40 kHz ultrasonic waves;
s3: plugging, fixing and forming: adding a water-dispersible adhesive for fixing for 0.5-1 h; and then drying and curing at the temperature of 80-120 ℃ for 30-120 min to obtain the textile loaded with the nano titanium dioxide.
2. The method according to claim 1, wherein the adjuvant comprises a surfactant in an amount of 0.2 to 1.2% by mass of the nano-titania particles and a penetrant in an amount of 0.2 to 1.2% by mass of the nano-titania particles.
3. The method of claim 2, wherein the surfactant is fatty alcohol-polyoxyethylene ether or ethylene glycol p-isooctyl phenyl ether, and the penetrant is a higher alcohol phosphate penetrant or an epoxy vinyl ether penetrant.
4. The method according to claim 1, further comprising the step of pre-treating the nano-titania particles by: placing nano titanium dioxide particles, a cross-linking agent and a dispersing agent in a pretreatment solvent, wherein the dosage of the cross-linking agent is 10-40% of the mass of the nano titanium dioxide particles, the dosage of the dispersing agent is 10-30% of the mass of the nano titanium dioxide particles, adjusting the pH value to 7-10, and carrying out ultrasonic treatment at 20-40 kHz for 0.5-2 h to obtain the nano titanium dioxide particles subjected to surface modification treatment.
5. The method of claim 4, wherein the crosslinking agent is an acrylic crosslinking agent or a silane crosslinking agent; the dispersant is one of polyphosphoric acid super-dispersants, polycarboxylic acid super-dispersants and polyester super-dispersants, and the pretreatment solvent is a methanol solution with the mass fraction of 5-35% or an ethanol solution with the mass fraction of 5-35%.
6. The method of claim 1, wherein the water-dispersible binder is polyacrylate binder, and the amount of the water-dispersible binder is 1-10% by mass of the nano titanium dioxide particles.
7. The method of claim 1, wherein the water-dispersible binder is one of polyacrylate emulsion, polymethacrylic acid emulsion, acrylamide and acrylate copolymer emulsion, acrylate and acrylonitrile copolymer emulsion, or a combination of any two or more thereof.
8. The method according to claim 1, wherein the nano-sized titanium dioxide particles are anatase titanium dioxide particles having a particle size of 10nm to 80 nm.
9. A textile loaded with nano titanium dioxide according to the method of any one of claims 1 to 8.
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