CN114351472A - Antibacterial carpet fabric - Google Patents
Antibacterial carpet fabric Download PDFInfo
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- CN114351472A CN114351472A CN202210160364.0A CN202210160364A CN114351472A CN 114351472 A CN114351472 A CN 114351472A CN 202210160364 A CN202210160364 A CN 202210160364A CN 114351472 A CN114351472 A CN 114351472A
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- 239000004744 fabric Substances 0.000 title claims abstract description 102
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 36
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 172
- 239000011787 zinc oxide Substances 0.000 claims abstract description 86
- 238000002156 mixing Methods 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 40
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000243 solution Substances 0.000 claims abstract description 34
- 230000003385 bacteriostatic effect Effects 0.000 claims abstract description 26
- 238000004070 electrodeposition Methods 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims abstract description 20
- 239000003792 electrolyte Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims abstract description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 229960003638 dopamine Drugs 0.000 claims abstract description 8
- 238000004108 freeze drying Methods 0.000 claims abstract description 8
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 8
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims abstract description 7
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 31
- 239000004365 Protease Substances 0.000 claims description 29
- 108091005804 Peptidases Proteins 0.000 claims description 22
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims description 22
- 235000019419 proteases Nutrition 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 20
- 239000011592 zinc chloride Substances 0.000 claims description 17
- 235000005074 zinc chloride Nutrition 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000012065 filter cake Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 8
- XNDZQQSKSQTQQD-UHFFFAOYSA-N 3-methylcyclohex-2-en-1-ol Chemical compound CC1=CC(O)CCC1 XNDZQQSKSQTQQD-UHFFFAOYSA-N 0.000 claims description 7
- 108090000526 Papain Proteins 0.000 claims description 7
- 229940055729 papain Drugs 0.000 claims description 7
- 235000019834 papain Nutrition 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- FYFFGSSZFBZTAH-UHFFFAOYSA-N methylaminomethanetriol Chemical compound CNC(O)(O)O FYFFGSSZFBZTAH-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000005530 etching Methods 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 20
- 210000002268 wool Anatomy 0.000 description 17
- 239000002135 nanosheet Substances 0.000 description 16
- 239000000047 product Substances 0.000 description 16
- 229920001690 polydopamine Polymers 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000022 bacteriostatic agent Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 241000222122 Candida albicans Species 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- 102000057297 Pepsin A Human genes 0.000 description 2
- 108090000284 Pepsin A Proteins 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 102000004142 Trypsin Human genes 0.000 description 2
- 108090000631 Trypsin Proteins 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229940095731 candida albicans Drugs 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229940088598 enzyme Drugs 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229940111202 pepsin Drugs 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000012588 trypsin Substances 0.000 description 2
- 229960001322 trypsin Drugs 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002061 nanopillar Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000009732 tufting Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000009941 weaving 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- 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
- 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
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- 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
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- 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
- D06M2200/50—Modified hand or grip properties; Softening compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses an antibacterial carpet fabric and a preparation method thereof, and relates to the technical field of textile materials. The method comprises the steps of firstly carrying out enzymolysis on a carpet fabric to obtain a pretreated carpet fabric, then mixing nano-lamellar zinc oxide with a dopamine aqueous solution for reaction to obtain pretreated zinc oxide, etching the pretreated zinc oxide by using a sodium methylsilicate solution to obtain modified zinc oxide, mixing the modified zinc oxide with the pretreated carpet fabric, carrying out freeze drying to obtain an antibacterial carpet fabric blank, and finally carrying out electrodeposition, filtration and drying in a mixed electrolyte to obtain the antibacterial carpet fabric by using the antibacterial carpet fabric blank as a negative electrode and a platinum sheet as a positive electrode. The bacteriostatic carpet fabric prepared by the invention has long-acting bacteriostatic activity, better wear resistance and good hand feeling.
Description
Technical Field
The invention relates to the technical field of textile materials, in particular to an antibacterial carpet fabric.
Background
The carpet is a ground laying object made of natural fibers or chemical synthetic fibers such as cotton, hemp, wool, silk and grass yarn through manual or mechanical knitting, tufting or weaving. It is one of the traditional arts with a long history worldwide. The floor covering is covered on the ground of houses, hotels, meeting rooms, entertainment places, gymnasiums, exhibition halls, vehicles, ships, airplanes and the like, and has the effects of reducing noise, insulating heat, improving foot feel, preventing slipping and preventing air pollution. The using areas in the house are kitchen, bedroom, bedside, tea table, sofa, toilet and living room.
At present, most of carpets on the market have poor antibacterial performance, and even the antibacterial performance of the carpet is improved by adding the bacteriostatic agent, but the bacteriostatic type is easy to lose due to the weak combination degree between the bacteriostatic agent and the fiber, so that the long-acting bacteriostatic effect cannot be achieved, and the product is easy to generate static electricity due to the addition of the bacteriostatic agent and is not soft and smooth enough, meanwhile, the wool fiber is often required to be treated by the bacteriostatic agent when being added, so that the wool fiber is not wear-resistant, and the service life of the product is shortened.
Disclosure of Invention
The invention aims to provide an antibacterial carpet fabric and a preparation method thereof, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the bacteriostatic carpet fabric mainly comprises the following raw material components in parts by weight: 80-100 parts of pretreated carpet fabric, 10-15 parts of modified zinc oxide and 5-8 parts of zinc oxide nano-columns; the pretreated carpet fabric is a carpet fabric which is subjected to protease treatment and has a surface rich in active groups; the modified zinc oxide is nano-sheet zinc oxide with the surface coated with porous polydopamine; the nano-sheet zinc oxide is prepared by carrying out a closed reaction on zinc chloride, sodium hydroxide and aluminum nitrate nonahydrate; the porous polydopamine is prepared by etching polydopamine with sodium methylsilicate; the pretreated carpet fabric is connected with the modified zinc oxide through polydopamine and zinc oxide nano-columns; the zinc oxide nano-pillars are prepared by electrodeposition.
Preferably, the carpet fabric has a gram weight of 1400-2400 g/m2The wool fiber carpet fabric; the protease is any one of papain, trypsin or pepsin.
As optimization, the antibacterial carpet fabric mainly comprises the following raw material components in percentage by mass: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns.
A preparation method of bacteriostatic carpet fabric mainly comprises the following preparation steps:
(1) mixing the carpet fabric with a protease solution, stirring for reaction, filtering, and drying to obtain a pretreated carpet fabric;
(2) mixing zinc chloride, sodium hydroxide and aluminum nitrate nonahydrate for a closed reaction, filtering and washing to obtain nano-sheet zinc oxide; mixing nano-sheet zinc oxide with a dopamine aqueous solution, carrying out ultrasonic dispersion, adding trihydroxymethyl aminomethane, adjusting the pH value to 8-9, stirring for reaction, and filtering to obtain pretreated zinc oxide;
(3) mixing the pretreated zinc oxide obtained in the step (2) with a sodium methylsilicate solution, stirring for reaction, filtering, washing and drying to obtain modified zinc oxide;
(4) mixing the pretreated carpet fabric obtained in the step (1) and the modified zinc oxide obtained in the step (3) in water, stirring and mixing, filtering, and freeze-drying to obtain an antibacterial carpet fabric blank;
(5) mixing a zinc nitrate solution and an aluminum nitrate solution to prepare a mixed electrolyte; and (5) taking the antibacterial carpet fabric blank obtained in the step (4) as a negative electrode and a platinum sheet as a positive electrode, and carrying out electrodeposition, filtering and drying in mixed electrolyte to obtain the antibacterial carpet fabric.
As optimization, the preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps:
(1) mixing a carpet fabric with a 2-6% protease solution according to a mass ratio of 1: 10-1: 20, stirring and reacting for 1-3 hours at a temperature of 60-75 ℃ and a pH value of 7-8, filtering to obtain a pretreated carpet fabric blank, and drying the pretreated carpet fabric blank at a temperature of 100-140 ℃ for 30-60 minutes to obtain a pretreated carpet fabric;
(2) mixing nano-lamellar zinc oxide and a dopamine aqueous solution with the mass fraction of 1g/L according to the mass ratio of 1: 10-1: 15, mixing the mixture in a beaker, ultrasonically dispersing for 8-10 min, adding trihydroxymethyl aminomethane with the mass of 0.1-0.2 times that of the nano-lamellar zinc oxide into the beaker, adjusting the pH of the material in the beaker to 8-9 by using hydrochloric acid with the molar fraction of 1mol/L, stirring and reacting for 20-24 h, and filtering to obtain pretreated zinc oxide;
(3) mixing the pretreated zinc oxide obtained in the step (2) with a sodium methylsilicate solution with a mass fraction of 4-6% according to a mass ratio of 1: 5-1: 8, stirring and reacting at 40-50 ℃ for 30-50 min, filtering to obtain a modified zinc oxide blank, washing the modified zinc oxide blank with deionized water for 2-4 times, and drying at 60 ℃ for 2-4 h to obtain modified zinc oxide;
(4) mixing the pretreated carpet fabric obtained in the step (1) with the modified zinc oxide obtained in the step (3) according to a mass ratio of 5: 1-7: 1, mixing the mixture in water with the mass 8-20 times of that of the pretreated carpet blank, stirring and mixing, filtering to obtain a filter cake, and freeze-drying the filter cake to obtain an antibacterial carpet fabric blank;
(5) and (4) taking the antibacterial carpet fabric blank obtained in the step (4) as a negative electrode and a platinum sheet as a positive electrode, performing electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric.
Preferably, the protease used in the protease solution in the step (1) is any one of papain, trypsin and pepsin.
Optimally, the preparation method of the nano-lamellar zinc oxide in the step (2) comprises the steps of mixing zinc chloride and sodium hydroxide according to the mass ratio of 1:5, adding water with the mass of 150-300 times that of the zinc chloride and aluminum nitrate nonahydrate with the mass of 0.2-0.4 time that of the zinc chloride, stirring until the mixture is turbid, carrying out closed reaction at the temperature of 85 ℃ for 12 hours, filtering to obtain a nano-lamellar zinc oxide blank, and washing the nano-lamellar zinc oxide blank with ethanol for 8-10 times to obtain the nano-lamellar zinc oxide.
Optimally, the mixed electrolyte in the step (5) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 3: 1-6: 1; the electrodeposition conditions are that the deposition potential is-1.3 to-1.4V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, when the antibacterial carpet fabric is prepared, the nano-lamellar zinc oxide with the surface containing porous polydopamine is added into the pretreated carpet fabric, and the nano-lamellar zinc oxide is used as a negative electrode to be electrolyzed in an electrolyte containing zinc nitrate.
Firstly, after the nano-sheet zinc oxide is added into a product, the nano-sheet zinc oxide can form covalent bond connection with active groups on the surface of wool fibers after enzyme treatment under the action of polydopamine, so that the nano-sheet zinc oxide covers the surface of the wool fibers, and because the zinc oxide has bacteriostasis, a zinc oxide protective layer can be formed on the outer side of the wool while the wool fibers are endowed with bacteriostasis, and aluminum is doped into the nano-sheet zinc oxide, and the zinc oxide containing the aluminum has excellent conductivity, so that the carpet fabric has good conductivity, the generation of static electricity is reduced, and the carpet fabric has soft hand feeling; the modified zinc oxide has excellent conductivity, so that subsequent electrodeposition treatment on products can be facilitated;
secondly, the carpet fabric with the surface of the wool fiber connected with the porous poly-dopamine-coated nano-sheet zinc oxide is used as a negative electrode, the carpet fabric is subjected to electrodeposition in electrolyte containing zinc nitrate, after the wool fiber is treated by protease, the number of active groups on the surface of the wool fiber is increased, after part of the active groups are combined with the nano-sheet zinc oxide with the surface containing the porous poly-dopamine, the remaining active groups can absorb zinc ions, and under the action of electrodeposition, zinc oxide nano-columns are formed on the surface of the wool fiber and can fill pits generated on the surface of the wool fiber after the wool fiber is treated by enzyme, and the poly-dopamine coated on the outer side of the nano-sheet zinc oxide is in a porous structure, so the exposed nano-sheet zinc oxide can be used as a crystallization point of the zinc oxide, and the nano-sheet zinc oxide is connected with the wool fiber through the zinc oxide nano-sheet zinc oxide nano-columns, the adhesion of the nano-sheet zinc oxide on the surface of the fiber is further improved, so that the product has a long-acting antibacterial effect, and aluminum nitrate is added when the zinc oxide nano-column is prepared by electrodeposition, so that the zinc oxide nano-column also has excellent conductivity, a good conductive path can be formed in the product by matching with the modified zinc oxide, and the flexibility of the product is further improved; moreover, due to the existence of the zinc oxide nano-columns, pores exist among the lamellar zinc oxide while the modified zinc oxide forms a film on the surface of the wool fiber, so that the subsequent dyeing and finishing treatment is facilitated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe the method in detail, and the method for testing each index of the bacteriostatic carpet fabric manufactured in the following examples is as follows:
bacteriostasis: the bacteriostatic carpet fabric obtained in each example and a comparative product are cut into small round pieces with the diameter of 6mm, 3 pieces of the bacteriostatic carpet fabric are cut for each sample, and the bacteriostatic carpet fabric and the comparative product are respectively stuck to 106CFU/mL of NA plates of Escherichia coli and Staphylococcus aureus and containing 106The diameter of the zone of inhibition was measured after culturing on a CFU/mL Candida albicans Sabouraud plate at 37 ℃ for 24 hours.
Lasting antibacterial activity: after washing the bacteriostatic carpet fabric obtained in each example and the comparative example for 20 times, cutting the bacteriostatic carpet fabric into small round pieces with the diameter of 6mm, cutting 3 samples, and respectively sticking the small round pieces to 10 parts6CFU/mL of NA plates of Escherichia coli and Staphylococcus aureus and containing 106The diameter of the zone of inhibition was measured after culturing on a CFU/mL Candida albicans Sabouraud plate at 37 ℃ for 24 hours.
Wear resistance: the bacteriostatic carpet fabric obtained in each example and the comparative product are mixed at 20N/cm2After 300 times of rubbing under the condition (1), the amount of abrasion and the product hand feeling were measured, and the amount of abrasion was calculated according to the formula (1).
Abrasion (%) = (weight before grinding-weight after grinding)/weight before grinding x 100% (1)
Example 1
An antibacterial carpet fabric mainly comprises the following components in parts by weight: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns.
The preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps of:
(1) mixing carpet fabric with a protease solution with the mass fraction of 4% according to the mass ratio of 1:15, stirring and reacting for 2 hours at the temperature of 70 ℃ and the pH value of 7.5, filtering to obtain a pretreated carpet fabric blank, and elastically drying the pretreated carpet fabric blank at the temperature of 130 ℃ for 35 minutes to obtain the pretreated carpet fabric;
(2) mixing nano-lamellar zinc oxide and dopamine aqueous solution with the mass fraction of 1g/L in a beaker according to the mass ratio of 1:12, ultrasonically dispersing for 9min, adding trihydroxymethyl aminomethane with the mass of 0.12 time that of the nano-lamellar zinc oxide into the beaker, adjusting the pH value of materials in the beaker to 8.5 by hydrochloric acid with the molar fraction of 1mol/L, stirring for reacting for 22h, and filtering to obtain pretreated zinc oxide;
(3) mixing the pretreated zinc oxide obtained in the step (2) with a sodium methylsilicate solution with the mass fraction of 5% according to the mass ratio of 1:6, stirring and reacting for 40min at the temperature of 45 ℃, filtering to obtain a modified zinc oxide blank, washing the modified zinc oxide blank with deionized water for 3 times, and drying for 3h at the temperature of 60 ℃ to obtain modified zinc oxide;
(4) mixing the pretreated carpet blank obtained in the step (1) with the modified zinc oxide obtained in the step (3) according to a mass ratio of 6:1, mixing the materials in water with the mass 10 times of that of the pretreated carpet blank, stirring and mixing the materials, filtering the mixture to obtain a filter cake, and freeze-drying the filter cake to obtain a bacteriostatic carpet fabric blank;
(5) and (4) taking the antibacterial carpet fabric blank obtained in the step (4) as a negative electrode and a platinum sheet as a positive electrode, performing electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric.
Preferably, the protease used in the protease solution in the step (1) is papain.
Optimally, the preparation method of the nano-lamellar zinc oxide in the step (2) comprises the steps of mixing zinc chloride and sodium hydroxide according to the mass ratio of 1:5, adding water 200 times the mass of the zinc chloride and aluminum nitrate nonahydrate 0.3 times the mass of the zinc chloride, stirring until the mixture is turbid, carrying out closed reaction at the temperature of 85 ℃ for 12 hours, filtering to obtain a nano-lamellar zinc oxide blank, and washing the nano-lamellar zinc oxide blank with ethanol for 9 times to obtain the nano-lamellar zinc oxide.
Optimally, the mixed electrolyte in the step (5) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 4: 1; the electrodeposition conditions are that the deposition potential is-1.3V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
Example 2
An antibacterial carpet fabric mainly comprises the following components in parts by weight: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns.
The preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps of:
(1) mixing carpet fabric with a protease solution with the mass fraction of 4% according to the mass ratio of 1:15, stirring and reacting for 2 hours at the temperature of 70 ℃ and the pH value of 7.5, filtering to obtain a pretreated carpet fabric blank, and elastically drying the pretreated carpet fabric blank at the temperature of 130 ℃ for 35 minutes to obtain the pretreated carpet fabric;
(2) mixing nano-lamellar zinc oxide and dopamine aqueous solution with the mass fraction of 1g/L in a beaker according to the mass ratio of 1:12, ultrasonically dispersing for 9min, adding tris (hydroxymethyl) aminomethane with the mass of 0.12 times that of the nano-lamellar zinc oxide into the beaker, adjusting the pH value of materials in the beaker to 8.5 by hydrochloric acid with the molar fraction of 1mol/L, stirring for reacting for 22h, and filtering to obtain modified zinc oxide;
(3) mixing the pretreated carpet blank obtained in the step (1) with the modified zinc oxide obtained in the step (2) according to a mass ratio of 6:1, mixing the materials in water with the mass 10 times of that of the pretreated carpet blank, stirring and mixing the materials, filtering the mixture to obtain a filter cake, and freeze-drying the filter cake to obtain a bacteriostatic carpet fabric blank;
(4) and (4) taking the antibacterial carpet fabric blank obtained in the step (3) as a negative electrode and a platinum sheet as a positive electrode, carrying out electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric.
Preferably, the protease used in the protease solution in the step (1) is papain.
Optimally, the preparation method of the nano-lamellar zinc oxide in the step (2) comprises the steps of mixing zinc chloride and sodium hydroxide according to the mass ratio of 1:5, adding water 200 times the mass of the zinc chloride and aluminum nitrate nonahydrate 0.3 times the mass of the zinc chloride, stirring until the mixture is turbid, carrying out closed reaction at the temperature of 85 ℃ for 12 hours, filtering to obtain a nano-lamellar zinc oxide blank, and washing the nano-lamellar zinc oxide blank with ethanol for 9 times to obtain the nano-lamellar zinc oxide.
Optimally, the mixed electrolyte in the step (4) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 4: 1; the electrodeposition conditions are that the deposition potential is-1.3V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
Example 3
An antibacterial carpet fabric mainly comprises the following components in parts by weight: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns.
The preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps of:
(1) mixing carpet fabric with a protease solution with the mass fraction of 4% according to the mass ratio of 1:15, stirring and reacting for 2 hours at the temperature of 70 ℃ and the pH value of 7.5, filtering to obtain a pretreated carpet fabric blank, and elastically drying the pretreated carpet fabric blank at the temperature of 130 ℃ for 35 minutes to obtain the pretreated carpet fabric;
(2) mixing nano zinc oxide and a dopamine aqueous solution with the mass fraction of 1g/L in a beaker according to the mass ratio of 1:12, ultrasonically dispersing for 9min, adding trihydroxymethyl aminomethane with the mass 0.12 time that of the nano zinc oxide into the beaker, adjusting the pH value of materials in the beaker to 8.5 by hydrochloric acid with the molar fraction of 1mol/L, stirring for reaction for 22h, and filtering to obtain pretreated zinc oxide;
(3) mixing the pretreated zinc oxide obtained in the step (2) with a sodium methylsilicate solution with the mass fraction of 5% according to the mass ratio of 1:6, stirring and reacting for 40min at the temperature of 45 ℃, filtering to obtain a modified zinc oxide blank, washing the modified zinc oxide blank with deionized water for 3 times, and drying for 3h at the temperature of 60 ℃ to obtain modified zinc oxide;
(4) mixing the pretreated carpet blank obtained in the step (1) with the modified zinc oxide obtained in the step (3) according to a mass ratio of 6:1, mixing the materials in water with the mass 10 times of that of the pretreated carpet blank, stirring and mixing the materials, filtering the mixture to obtain a filter cake, and freeze-drying the filter cake to obtain a bacteriostatic carpet fabric blank;
(5) and (4) taking the antibacterial carpet fabric blank obtained in the step (4) as a negative electrode and a platinum sheet as a positive electrode, performing electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric.
Preferably, the protease used in the protease solution in the step (1) is papain.
Optimally, the mixed electrolyte in the step (5) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 4: 1; the electrodeposition conditions are that the deposition potential is-1.3V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
Comparative example
An antibacterial carpet fabric mainly comprises the following components in parts by weight: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns.
The preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps of:
(1) mixing carpet fabric with a protease solution with the mass fraction of 4% according to the mass ratio of 1:15, stirring and reacting for 2 hours at the temperature of 70 ℃ and the pH value of 7.5, filtering to obtain a pretreated carpet fabric blank, and elastically drying the pretreated carpet fabric blank at the temperature of 130 ℃ for 35 minutes to obtain the pretreated carpet fabric;
(2) mixing nano zinc oxide and dopamine aqueous solution with the mass fraction of 1g/L in a beaker according to the mass ratio of 1:12, ultrasonically dispersing for 9min, adding trihydroxymethyl aminomethane with the mass 0.12 time that of the nano zinc oxide into the beaker, adjusting the pH value of materials in the beaker to 8.5 by hydrochloric acid with the molar fraction of 1mol/L, stirring for reaction for 22h, and filtering to obtain modified zinc oxide;
(3) mixing the pretreated carpet blank obtained in the step (1) with the modified zinc oxide obtained in the step (2) according to a mass ratio of 6:1, mixing the materials in water with the mass 10 times of that of the pretreated carpet blank, stirring and mixing the materials, filtering the mixture to obtain a filter cake, and freeze-drying the filter cake to obtain a bacteriostatic carpet fabric blank;
(4) and (4) taking the antibacterial carpet fabric blank obtained in the step (3) as a negative electrode and a platinum sheet as a positive electrode, carrying out electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric.
Preferably, the protease used in the protease solution in the step (1) is papain.
Optimally, the preparation method of the nano-lamellar zinc oxide in the step (2) comprises the steps of mixing zinc chloride and sodium hydroxide according to the mass ratio of 1:5, adding water 200 times the mass of the zinc chloride and aluminum nitrate nonahydrate 0.3 times the mass of the zinc chloride, stirring until the mixture is turbid, carrying out closed reaction at the temperature of 85 ℃ for 12 hours, filtering to obtain a nano-lamellar zinc oxide blank, and washing the nano-lamellar zinc oxide blank with ethanol for 9 times to obtain the nano-lamellar zinc oxide.
Optimally, the mixed electrolyte in the step (4) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 4: 1; the electrodeposition conditions are that the deposition potential is-1.3V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
Examples of effects
Table 1 below gives the results of performance analysis of the bacteriostatic carpet face fabric using examples 1 to 3 of the present invention and the comparative example.
TABLE 1
From the comparison of the experimental data of example 1 and the comparative example in table 1, it can be found that when the nano-lamellar zinc oxide containing porous polydopamine on the surface is added into the pretreated carpet fabric and used as the negative electrode to be electrolyzed in the electrolyte containing zinc nitrate, so that the zinc oxide nano-columns are formed between the lamellar zinc oxide and the wool fibers to be connected, the product has long-acting antibacterial activity, and the wear resistance and the hand feeling of the product are improved. From the comparison of the experimental data of example 1 and example 2, it can be found that when the modified zinc oxide is prepared, the bonding force between the modified zinc oxide and the fiber is weakened without etching polydopamine, and a completed conductive path cannot be formed, thereby affecting the performance of the product, and from the comparison of the experimental data of example 1 and example 3, when the modified zinc oxide is prepared, the zinc oxide on the surface of the product cannot form a complete protective layer without using the nanosheet layer zinc oxide, and the bonding force between the zinc oxide and the fiber is weak, thereby failing to make the product have bacteriostatic activity at a long-term temperature.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (1)
1. An antibacterial carpet fabric is characterized in that: the adhesive mainly comprises the following components in parts by weight: 90 parts of pretreated carpet fabric, 15 parts of modified zinc oxide and 5 parts of zinc oxide nano-columns;
the preparation method of the bacteriostatic carpet fabric mainly comprises the following preparation steps:
(1) mixing carpet fabric with a protease solution with the mass fraction of 4% according to the mass ratio of 1:15, stirring and reacting for 2 hours at the temperature of 70 ℃ and the pH value of 7.5, filtering to obtain a pretreated carpet fabric blank, and elastically drying the pretreated carpet fabric blank at the temperature of 130 ℃ for 35 minutes to obtain the pretreated carpet fabric;
(2) mixing nano-lamellar zinc oxide and dopamine aqueous solution with the mass fraction of 1g/L in a beaker according to the mass ratio of 1:12, ultrasonically dispersing for 9min, adding trihydroxymethyl aminomethane with the mass of 0.12 time that of the nano-lamellar zinc oxide into the beaker, adjusting the pH value of materials in the beaker to 8.5 by hydrochloric acid with the molar fraction of 1mol/L, stirring for reacting for 22h, and filtering to obtain pretreated zinc oxide;
(3) mixing the pretreated zinc oxide obtained in the step (2) with a sodium methylsilicate solution with the mass fraction of 5% according to the mass ratio of 1:6, stirring and reacting for 40min at the temperature of 45 ℃, filtering to obtain a modified zinc oxide blank, washing the modified zinc oxide blank with deionized water for 3 times, and drying for 3h at the temperature of 60 ℃ to obtain modified zinc oxide;
(4) mixing the pretreated carpet blank obtained in the step (1) with the modified zinc oxide obtained in the step (3) according to a mass ratio of 6:1, mixing the materials in water with the mass 10 times of that of the pretreated carpet blank, stirring and mixing the materials, filtering the mixture to obtain a filter cake, and freeze-drying the filter cake to obtain a bacteriostatic carpet fabric blank;
(5) taking the antibacterial carpet fabric blank obtained in the step (4) as a negative electrode and a platinum sheet as a positive electrode, performing electrodeposition in mixed electrolyte, filtering, and drying to obtain the antibacterial carpet fabric;
the protease used in the protease solution in the step (1) is papain;
mixing zinc chloride and sodium hydroxide according to the mass ratio of 1:5, adding water 200 times the mass of the zinc chloride and aluminum nitrate nonahydrate 0.3 times the mass of the zinc chloride, stirring until the mixture is turbid, carrying out closed reaction at the temperature of 85 ℃ for 12 hours, filtering to obtain a nano-lamellar zinc oxide blank, and washing the nano-lamellar zinc oxide blank with ethanol for 9 times to obtain nano-lamellar zinc oxide;
the mixed electrolyte obtained in the step (5) is obtained by mixing 0.02mol/L zinc nitrate solution and 0.01mol/L aluminum nitrate solution according to the mass ratio of 4: 1; the electrodeposition conditions are that the deposition potential is-1.3V, the temperature is 80 ℃, and the electrodeposition is carried out for 30 min.
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