CN114703654B - Antibacterial fabric and preparation method thereof - Google Patents
Antibacterial fabric and preparation method thereof Download PDFInfo
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- CN114703654B CN114703654B CN202210481017.8A CN202210481017A CN114703654B CN 114703654 B CN114703654 B CN 114703654B CN 202210481017 A CN202210481017 A CN 202210481017A CN 114703654 B CN114703654 B CN 114703654B
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- antibacterial
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- fabric
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 134
- 239000004744 fabric Substances 0.000 title claims abstract description 111
- 238000002360 preparation method Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 99
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 37
- 239000010936 titanium Substances 0.000 claims abstract description 37
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 18
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- -1 polysiloxane Polymers 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000005406 washing Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 32
- 239000003094 microcapsule Substances 0.000 claims description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
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- 238000002791 soaking Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 14
- 229920002545 silicone oil Polymers 0.000 claims description 14
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- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 12
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
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- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
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- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 6
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- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 2
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
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- 241000588724 Escherichia coli Species 0.000 description 1
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- 230000002421 anti-septic effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
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- 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
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- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
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- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
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- 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
- D06M11/83—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 metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- 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
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
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- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
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- D06M2101/34—Polyamides
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
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Abstract
The application relates to the field of fabrics, and particularly discloses an antibacterial fabric and a preparation method thereof. The antibacterial fabric is made of blended yarns, wherein the blended yarns comprise nylon fibers and cotton fibers, the blended yarns are finished by antibacterial agents, and the antibacterial agents comprise the following substances in parts by weight: 10-20 parts of nano silver powder, 5-15 parts of titanium dioxide, 5-10 parts of titanium sol and 4-8 parts of silane coupling agent, wherein the titanium dioxide is mesoporous titanium dioxide, and the titanium sol consists of anatase titanium dioxide. The preparation method comprises the following steps: s1, preparing nano silver powder; s2, preparing an antibacterial agent; s3, finishing the blended yarn; s4, preparing the antibacterial fabric. The antibacterial fabric provided by the application can be used in the fields of daily clothing, medical clothing and the like, and has the advantages of good antibacterial effect and long-acting antibacterial effect.
Description
Technical Field
The application relates to the field of fabrics, in particular to an antibacterial fabric and a preparation method thereof.
Background
Along with the development of society, the clothing fabric is changed to a certain extent from the original single-color fabric to the colorful fabric with various patterns, and the fabric material is changed from the single-material fabric, such as cotton fabric, hemp fabric and the like, to the mixed fabric of various materials, such as the mixed fabric of terylene and cotton and the like. In recent years, pure fabrics are not satisfied, and functional fabrics having different functions are demanded.
In order to meet the market demands, functional fabrics are developed, wherein the functional fabrics comprise flame-retardant fabrics, waterproof fabrics, antibacterial fabrics and the like, and the antibacterial fabrics are widely applied, so that the antibacterial fabrics are applicable to the medical field, can be applied to daily life, reduce bacterial breeding and improve clothing wearability. At present, when the antibacterial fabric is prepared, the fabric is usually finished by adopting an antibacterial agent, and the antibacterial effect is achieved through the antibacterial agent loaded on the fabric.
With respect to the above related art, the inventor considers that the fabric is finished only by the antibacterial agent, and the laundry needs to be washed, sweat is easily generated on the skin, and the antibacterial agent is infiltrated by the liquid, so that the antibacterial agent easily flows along with the liquid, and the antibacterial fabric has the defect of poor antibacterial durability.
Disclosure of Invention
In order to overcome the defect of poor antibacterial durability of the antibacterial fabric, the application provides the antibacterial fabric and a preparation method thereof.
In a first aspect, the present application provides an antibacterial fabric, which adopts the following technical scheme:
The antibacterial fabric is made of blended yarns, wherein the blended yarns comprise nylon fibers and cotton fibers, the blended yarns are finished by antibacterial agents, and the antibacterial agents comprise the following substances in parts by weight: 10-20 parts of nano silver powder, 5-15 parts of titanium dioxide, 5-10 parts of titanium sol and 4-8 parts of silane coupling agent, wherein the titanium dioxide is mesoporous titanium dioxide, and the titanium sol consists of anatase titanium dioxide.
Through adopting above-mentioned technical scheme, at first, mesoporous titanium dioxide can carry out the load to nanometer silver powder, reduces the powder in the antibacterial agent and takes place the possibility that gathers, improves the dispersion uniformity of antibacterial agent on the blend line. And each component in the antibacterial agent can be uniformly adsorbed, the specific surface area of the antibacterial agent is increased through a mesoporous structure, and the bonding strength between the antibacterial agent and a blending line is improved. Moreover, through the finite field effect of mesoporous pore canals, strong interaction is obtained between the silver element and the pore canals, effective separation of photo-generated electrons and holes is promoted, the utilization rate of the antibacterial agent on visible light is enhanced, and the antibacterial effect of the antibacterial agent is improved.
Secondly, the titanium sol and the silane coupling agent are added, and both can wrap the powder in the antibacterial agent, so that the dispersibility of the antibacterial agent in the liquid is improved, and when the antibacterial agent is configured to obtain the antibacterial finishing agent to finish the blended yarn, the antibacterial agent can be uniformly suspended and dispersed in the antibacterial finishing agent, so that the blended yarn obtains uniform antibacterial effect. In addition, after the titanium sol and the silane coupling agent are matched with the rest components in the antibacterial agent, a divergent structure is easily generated on the antibacterial agent particles, and the combination effect between the antibacterial agent and the blending line is further improved.
Preferably, the preparation method of the titanium sol comprises the following steps: according to parts by weight, respectively weighing 20-30 parts of butyl titanate, 5-20 parts of hydrochloric acid, 5-10 parts of acetylacetone, 50-150 parts of water and 100-150 parts of ethanol, stirring and mixing the ethanol, the butyl titanate and the acetylacetone, adding the water and the hydrochloric acid, and continuously reacting at 50-70 ℃ to obtain the titanium sol.
By adopting the technical scheme, the titanium sol is prepared by adopting the sol-gel method in the technical scheme of the application, the titanium particles with regular crystallization are formed, and the partial-OC 4H9 groups on the molecular chain segments in the titanium sol are reserved by optimizing the reaction temperature, so that the titanium sol has lipophilicity, and therefore, the titanium particles can have higher dispersing effect in the titanium sol. Therefore, when the titanium sol wraps the rest components in the antibacterial agent, the electrostatic repulsive force among the antibacterial agent particles can be increased, the dispersing effect of the antibacterial agent is effectively improved, and the uniform antibacterial effect of the mixed yarn is facilitated.
Preferably, the antibacterial agent further comprises polysiloxane, wherein the polysiloxane comprises the following substances in parts by weight: 1-2 parts of chain extension basic silicone oil, 1-2.8 parts of chain extension crosslinking silicone oil, 0.2-0.5 part of reinforcing agent and 0.1-0.2 part of catalyst.
By adopting the technical scheme, polysiloxane is added into the antibacterial agent, and firstly, as the polysiloxane has a certain bonding effect, the bonding effect between the antibacterial agent and the blend line can be enhanced, and the possibility of falling off of the antibacterial agent is reduced.
Secondly, the polysiloxane can effectively wrap the rest components in the antibacterial agent, and the rest components of the antibacterial agent can be uniformly dispersed in the polysiloxane due to the good lipophilicity of the titanium sol. The chain-extended cross-linked silicone oil and the chain-extended contact silicone oil can form a cross-linked network structure under the catalysis of the catalyst, and other components in the antibacterial agent can be effectively loaded through the cross-linked network structure. On one hand, the polysiloxane can be stably combined with the blend line through a cross-linked reticular structure; on the other hand, the antibacterial agent can be entangled and staggered with the coupling chain segments of the polysiloxane, so that the combination stability between the antibacterial agent and the polysiloxane is improved, and meanwhile, the combination strength of the polysiloxane and the blend line is further improved.
And finally, the polysiloxane has a stable silica bond structure and larger bond energy, so that the polysiloxane is not easy to damage when the titanium element in the antibacterial agent is subjected to light absorption and catalytic degradation, and the antibacterial agent can be stably loaded on a blended yarn. The anti-microbial agent can be combined with the blend line rapidly under the cooperation of polysiloxane and the silane coupling agent, so that the fabric is prevented from being in direct contact with other components in the anti-microbial agent, the possibility of embrittlement of the blend line caused by photocatalytic degradation of the anti-microbial agent is effectively reduced, and the anti-microbial agent has an anti-microbial effect for a long time.
Preferably, the antibacterial agent further comprises an antibacterial microcapsule, the antibacterial microcapsule comprises a core material and a wall material, the core material comprises one or more of lavender essential oil, tea tree essential oil and cinnamon essential oil, and the wall material comprises a polyallylamine-pyrene layer.
By adopting the technical scheme, the antibacterial microcapsules are added into the antibacterial agent, and the lavender essential oil, the tea tree essential oil and the cinnamon essential oil are wrapped in the wall material through the shell-core structure, so that the antibacterial fabric can be endowed with aromatic smell, and the core material can be slowly released from the wall material, so that the antibacterial fabric can obtain a long-acting antibacterial effect.
Meanwhile, the polypropylene-pyrene layer is used as a wall material, and a conjugated structure, namely a reversible Schiff base structure, can be formed in the wall material, so that the wall material can be changed according to pH. When sweat is generated by skin, the antibacterial fabric is easier to absorb sweat and dilute the concentration of the antibacterial agent, and the sweat environment is rich in more nutrients for microorganism growth, so that the microorganism amount is increased. As sweat is usually weak acid, schiff base structure can be decomposed, and then continuous structure in the microcapsule shell can be gradually converted into one-dimensional nano structure, so that the outflow channel of the microcapsule core material is increased, the release amount of the core material is increased, the inhibition and killing effects of the antibacterial agent on microorganisms are improved, and the wearability of the antibacterial fabric is improved.
Finally, the wall material has better hydrophobic effect, so that the antibacterial microcapsules are not easy to separate from the antibacterial blended yarn in the water washing process, and the antibacterial fabric can obtain long-acting antibacterial effect.
Preferably, the wall material further comprises sodium alginate, acrylic acid and a cross-linking agent.
By adopting the technical scheme, the composition of the wall material is optimized, the sodium alginate can form a gel-like shell, the gel-like shell can effectively increase the viscosity of the microcapsule, and the combination effect between the antibacterial microcapsule and the antibacterial blended yarn is improved. And the acrylic acid can form a crosslinked reticular structure under the promotion of a crosslinking agent, and the gel material is coated on the crosslinked divergent structure, so that the combination effect of the antibacterial microcapsule and the antibacterial hybrid yarn can be further enhanced. And the formed polypropylene shell can also respond to weak acid sweat, namely the porosity of the shell is enhanced, and the release of the core material is facilitated. Therefore, the polypropylene acrylic amine-pyrene layer and the polypropylene shell can be matched and responded, and after sweat is immersed, the one-dimensional nano structure is transformed and matched with the loose shell structure, so that the release of the core material is effectively promoted.
Preferably, the preparation of the antibacterial microcapsules comprises the following steps:
Inner wall preparation: according to the parts by weight, 10-20 parts of calcium nitrate, 1-2 parts of polyallylamine hydrochloride, 10-20 parts of sodium carbonate, 30 parts of 1-pyrene formaldehyde and 30 parts of EDTA are taken, the calcium nitrate and the polyallylamine hydrochloride are mixed, sodium carbonate is added, stirring is continued, standing and centrifugation are carried out, solids are reserved, and a template is obtained through water washing; soaking a template in 1-pyrene formaldehyde, oscillating, centrifuging, retaining solid particles, soaking the solid particles in EDTA, stirring for reaction, repeatedly centrifuging, retaining solid matters, and washing with water to obtain an inner wall material;
Microsphere preparation: soaking the inner wall material in hydrochloric acid, adjusting pH to be 2-6, carrying out soaking treatment, neutralizing with sodium hydroxide, and washing with water to obtain a pore inner wall material, and soaking the pore inner wall material in a core material to obtain microspheres;
Microcapsule preparation: according to parts by weight, 2-5 parts of sodium alginate, 5-10 parts of acrylic acid, 2-4 parts of cross-linking agent and 0.5-2 parts of initiator are taken, sodium alginate and water are mixed to obtain gel solution, microspheres are immersed in the gel solution to obtain coated microspheres, and the coated microspheres are immersed in calcium chloride solution to obtain gel microspheres;
Mixing acrylic acid, water and a cross-linking agent under stirring to obtain a mixed solution, adding ammonium persulfate into the mixed solution to obtain an outer layer solution, soaking gel microspheres in the outer layer solution, performing sealing reaction, filtering, retaining solids, washing with water, and drying to obtain the antibacterial microcapsule.
By adopting the technical scheme, the preparation steps of the microcapsule are optimized in the technical scheme, the core material is supported by the hollow pore inner wall material, and the core material is further wrapped by sodium alginate and outer layer liquid, so that the multilayer self-assembled microcapsule structure of the core material-polypropylene-based amine-pyrene layer-gel-polypropylene outer layer can be formed.
The shell materials outside the core material all have a certain pore structure, and after the antibacterial fabric absorbs sweat, the polypropylene outer layer structure can absorb sweat and respond to weak acidity, so that the shell is loose. Meanwhile, the polypropylene outer layer can stabilize sweat, so that the polypropylene-based amine-pyrene layer responds to sweat and is converted into a one-dimensional nano structure, the outflow of the core material is effectively increased, and the growth of bacteria is effectively inhibited.
Moreover, the one-dimensional nano structure can puncture the gel layer, so that the nano rod is penetrated on the outer surface of the microcapsule, and the gel is loaded on the nano rod, so that the combination firmness between the antibacterial microcapsule and the antibacterial hybrid yarn can be further enhanced, and the antibacterial aging of the antibacterial microcapsule is effectively prolonged through the slow release and the nano rod puncture structure.
Preferably, the blend line further comprises adhesive fibers, and the mass ratio of the adhesive fibers to the nylon fibers to the cotton fibers is 15-25:25-35:40-60.
By adopting the technical scheme, the adhesive fiber is added into the mixed yarn, so that the cohesive effect of other fibers in the mixed yarn can be improved, and the bonding strength of the mixed yarn is improved, therefore, after the mixed yarn is finished by the antibacterial agent, the antibacterial agent can be firmly loaded on the fiber structure of the mixed yarn, the possibility of falling off the antibacterial agent caused by poor cohesive effect of the mixed yarn is reduced, and the bonding effect between the antibacterial agent and the mixed yarn is improved.
Preferably, the blend is a plasma pretreated blend.
Through adopting above-mentioned technical scheme, adopt the mode of plasma treatment to handle the blend line, plasma can be formed with the sculpture tunnel on the blend line surface, has increased the specific surface area of blend line to can excite the active group, effectively strengthen the bonding strength between antiseptic and the blend line.
In a second aspect, the application provides a preparation method of an antibacterial fabric, which adopts the following technical scheme: the preparation method of the antibacterial fabric comprises the following steps: s1, preparing nano silver powder: taking 10-15 parts of silver nitrate, 150-250 parts of silicon dioxide, 4-8 parts of glucose and 1-1.5 parts of sodium hydroxide according to weight percentage, mixing the silver nitrate, the silicon dioxide and water, soaking, heating to obtain a premix, adding the glucose and the sodium hydroxide into the premix, stirring and mixing, vacuum filtering, retaining solid matters, washing and drying to obtain nano silver powder; s2, preparation of an antibacterial agent: taking nano silver powder, titanium dioxide, a silane coupling agent, titanium sol and water according to a formula, and stirring and mixing to obtain an antibacterial agent; s3, finishing a blending line: dipping the blended yarn in an antibacterial agent, and dipping and finishing to obtain a finished blended yarn; s4, preparing an antibacterial fabric: and weaving the blended yarn to obtain a fabric, immersing the fabric in an antibacterial agent, and finishing the fabric by adopting a padding method to obtain the antibacterial fabric.
By adopting the technical scheme, the preparation of the nano silver powder is optimized in the technical scheme, a load structure of Ag/SiO 2 is formed, the contact of air and oxygen to silver ions is isolated, the color change of the silver ions is slowed down, the antibacterial agent obtains lighter color, and the influence of the antibacterial agent on the wearability of the antibacterial fabric is reduced. Meanwhile, the finishing method is optimized, and the antibacterial agent is finished on the fabric by adopting a padding method, so that the combination firmness between the antibacterial agent and the fabric can be improved.
In summary, the application has the following beneficial effects:
1. Because mesoporous titanium dioxide is added into the antibacterial agent, the application can load other components in the antibacterial agent and reduce the occurrence of agglomeration phenomenon in the antibacterial agent; the effective separation of photo-generated electrons and holes generated by silver ions can be promoted by the mesoporous confinement effect, the photocatalytic degradation effect of the silver ions is enhanced, and the antibacterial effect of the antibacterial agent is improved; in addition, the specific surface area of the antibacterial agent is increased, and the bonding strength between the antibacterial agent and the blend line is effectively enhanced; and the titanium sol and the silane coupling agent can enhance the bonding strength between the antibacterial agent and the blend line through self-adhesion and a coupling grafting mode, so that the antibacterial fabric has a long-acting antibacterial effect.
2. In the application, polysiloxane is preferably added into the antibacterial agent, and the polysiloxane has better bonding effect, so that the bonding strength of the antibacterial agent and a blend line can be enhanced; meanwhile, the polysiloxane can effectively bond the surface of the blend yarn, isolate the blend yarn from directly contacting with other components in the antibacterial agent, resist the photocatalytic degradation of titanium element, reduce the possibility of embrittlement of the blend yarn, and improve the wearability of the antibacterial fabric, so that the antibacterial fabric has a long-acting and stable antibacterial effect.
3. According to the method, the preparation method of the nano silver powder is optimized, the nano silver powder with high catalytic activity and light color is obtained, the taking effect of the antibacterial fabric is improved, the finishing mode of the antibacterial agent on the fabric is optimized, and the bonding strength between the antibacterial agent and the antibacterial fabric can be enhanced by a padding mode, so that the antibacterial fabric has a stable antibacterial effect.
Detailed Description
The present application will be described in further detail with reference to examples.
In the embodiment of the present application, the selected instruments and devices are shown below, but not limited to:
instrument: a twisting machine with the product number of 02 of Kagao textile Limited company in Fangfang city.
Medicine: silane coupling agent KH550 of Jinan Haokun chemical Co., ltd, n-butyl titanate of Nanjing Techno Co., ltd, karstedt catalyst of Shenzhen Silicang Techno Co., ltd, acetylacetone of Shandong Kepler Biotechnology Co., ltd, 1-pyrene formaldehyde of Sigma-Aldrich, EDTA of Nantong Runfeng petrochemical Co., ltd.
Preparation example
Preparation example of nanometer silver powder
Preparation examples 1 to 3
Silver nitrate solution, silicon dioxide, glucose, sodium hydroxide and water with mass fractions of 0.06% are respectively weighed, and specific mass fractions are shown in table 1. Stirring and mixing silver nitrate and silicon dioxide, fully soaking for 2 hours, and preheating a solution to obtain a premix; glucose, sodium hydroxide and water are stirred and mixed to obtain an alkaline solution. Stirring and mixing the premix and the alkaline solution, heating to 60 ℃, reacting for 30min, vacuum filtering, retaining solid matters, washing with water, drying and grinding to obtain the nano silver powder 1-3.
TABLE 1 preparation examples 1-3 composition of nano silver powder
Titanium Sol preparation example
Preparation examples 4 to 6
Butyl titanate, hydrochloric acid with mass fraction of 15%, acetylacetone, water and ethanol were weighed respectively, and the specific mass is shown in table 2. Butyl titanate, acetylacetone and ethanol are stirred and mixed, placed in a reaction kettle, mixed, dropwise added with hydrochloric acid and water, and continuously reacted for 6 hours at the reaction temperature of 50 ℃ to obtain titanium sol 1-3.
TABLE 2 preparation examples 4-6 titanium Sol composition
Preparation examples 7 to 8
The difference from preparation example 5 is that: the reaction temperature is respectively regulated to 60 ℃ and 70 ℃ to obtain titanium sol 4-5.
Polysiloxane preparation example
Preparation examples 9 to 11
The chain-extended base silicone oil, the chain-extended cross-linked silicone oil, the reinforcing agent (silicon dioxide) and the catalyst (karstedt) are respectively weighed, and the specific mass is shown in Table 3. And uniformly mixing chain extension basic silicone oil, chain extension cross-linking silicone oil, a reinforcing agent and a catalyst to obtain polysiloxane 1-3.
Wherein, the preparation of the chain extension basic silicone oil adopts the following steps: taking 5kg of divinyl polydimethylsiloxane and 5kg of octamethyl cyclotetrasiloxane, stirring and mixing, adding 0.2kg of sulfuric acid with the mass fraction of 98%, reacting for 4 hours at 45 ℃ in a nitrogen atmosphere, neutralizing with anhydrous sodium carbonate until the pH value is neutral, distilling under reduced pressure, removing low molecular substances, filtering under reduced pressure, and retaining liquid substances to obtain the chain-extended basic silicone oil.
Wherein, the preparation of the chain-extended cross-linked silicone oil adopts the following steps: taking 5kg of divinyl polydimethylsiloxane and 0.5kg of octamethyl cyclotetrasiloxane, stirring and mixing, adding 0.2kg of sulfuric acid with the mass fraction of 98%, reacting for 4 hours at 45 ℃ in a nitrogen atmosphere, neutralizing with anhydrous sodium carbonate until the pH value is neutral, distilling under reduced pressure, removing low molecular substances, filtering under reduced pressure, and retaining liquid substances to obtain the chain-extended cross-linked silicone oil.
TABLE 3 preparation examples 9-11 polysiloxane compositions
Core preparation example
Preparation example 12
2Kg of lavender essential oil was taken as a core material. Among others, it is worth noting that core materials include, but are not limited to: any one or more of lavender essential oil, tea tree essential oil and cinnamon essential oil.
Microsphere preparation example
Preparation examples 13 to 15
The calcium nitrate solution, polyallylamino hydrochloride, sodium carbonate solution, 1-pyrene formaldehyde and EDTA were each weighed at a mass fraction of 33%, and the specific mass is shown in Table 4. Stirring and mixing calcium nitrate and polyallylamino hydrochloride, adding sodium carbonate, magnetically stirring at 1000rpm for 30min, standing for 30min, centrifuging, retaining solid, and washing with water for three times to obtain the template. Dispersing the template in ethanol, adding 1-pyrene formaldehyde, mixing and oscillating for 5 hours, centrifuging, retaining solid particles, soaking the solid particles in EDTA, reacting for 30 minutes, repeatedly centrifuging for 4 times, retaining solid matters, washing for three times, and storing in water to obtain the inner wall material 1-3. Immersing the inner wall material in 15% hydrochloric acid to obtain an acidic solution, adjusting pH=6, oscillating for 70h, adding sodium hydroxide, adjusting the acidic solution to be neutral, centrifuging, retaining solid matters, and washing with water to obtain the pore inner wall material. 1kg of pore inner wall material is immersed in 1kg of core material, oscillating treatment is carried out for 3h, filtering is carried out, and solid matters are taken out, thus obtaining the microsphere 1-3.
TABLE 4 preparation examples 13-15 inner wall Material composition
PREPARATION EXAMPLE 16
The difference from preparation example 14 is that: adjusting the ph=4 of the acidic solution, resulting in microspheres 4.
Preparation example 17
The difference from preparation example 14 is that: adjusting the ph=2 of the acidic solution, resulting in microspheres 5.
Microcapsule preparation example
Preparation examples 18 to 20
Sodium alginate, acrylic acid, a cross-linking agent, an initiator and water are respectively weighed, and the specific mass is shown in Table 5. Mixing ammonium alginate and water under stirring to obtain gel solution, soaking microsphere 1 in the gel solution to obtain coated microsphere, and soaking the coated microsphere in 2% calcium chloride solution to obtain gel microsphere. And stirring and mixing sodium acrylate, water and a crosslinking agent to obtain a mixed solution, and adding ammonium persulfate into the mixed solution to obtain an outer layer solution. Soaking the gel microspheres in the outer layer liquid, sealing and reacting for 2 hours, filtering, and washing with water to obtain the microcapsules 1-3. Wherein the initiator comprises one or two of ammonium persulfate and sodium bisulphite.
TABLE 5 preparation examples 18-20 composition of the outer layer liquid
Preparation examples 21 to 24
The difference from preparation example 19 is that: microcapsules 4-7 were prepared using microspheres 2-5 instead of microsphere 1 of preparation 19.
Preparation example of a blend yarn
PREPARATION EXAMPLES 25 to 28
The adhesive fiber, the nylon fiber and the cotton fiber are respectively taken, the specific quality is shown in table 6, and the spinning equipment is adopted for spinning to obtain the mixed yarn 1-4.
Table 6 preparation examples 25-28 blend line composition
Preparation example 29
The difference from preparation example 25 is that: the blend line 1 was subjected to plasma treatment under air conditions at 550W for 90s to obtain a plasma-pretreated blend line 1.
Preparation example 30
The difference from preparation 29 is that: instead of blend 1 in preparation example 29, blend 2 was prepared as blend 2 with plasma treatment.
Examples
Examples 1 to 3
In one aspect, the application provides an antibacterial fabric, which is made of a blend yarn 1, wherein the blend yarn 1 is a blend yarn finished by an antibacterial agent, and the antibacterial agent comprises the following substances: the specific mass of the nano silver powder 1, titanium dioxide, titanium sol 1 and the silane coupling agent is shown in Table 7. Wherein the titanium dioxide is mesoporous titanium dioxide, and the titanium sol is prepared from anatase titanium dioxide.
On the other hand, the application provides a preparation method of the antibacterial fabric, which comprises the following steps:
Preparation of an antibacterial agent: weighing according to a formula, mixing and stirring nano silver powder, titanium dioxide, a silane coupling agent and silica sol to obtain an antibacterial agent, and mixing and stirring 5kg of the antibacterial agent and 10kg of water to obtain the antibacterial finishing agent.
Finishing the blend line: and (3) dipping the blended yarn in the antibacterial finishing agent, dipping and finishing for 20min, taking out, and drying to obtain the finished blended yarn.
Preparing an antibacterial fabric: and weaving the finished blended yarn to obtain a fabric, immersing the fabric in an antibacterial agent, finishing the fabric by adopting two padding and two rolling with the rolling residual rate of 70%, and drying to obtain the antibacterial fabric.
TABLE 7 antimicrobial compositions of examples 1-3
Examples 4 to 5
The difference from example 2 is that: the nano silver powder 2-3 was used instead of the nano silver powder 1 in example 2 to prepare the antibacterial fabric 4-5.
Examples 6 to 9
The difference from example 2 is that: titanium sol 2-5 was used instead of titanium sol 1 in example 2 to prepare antibacterial fabric 6-9.
Examples 10 to 12
The difference from example 2 is that: the antibacterial agent also comprises 2kg of polysiloxane 1-3, and is used for preparing an antibacterial finishing agent and preparing 10-12 of antibacterial fabric.
Examples 13 to 19
The difference from example 2 is that: the antibacterial agent also comprises 2kg of microcapsules 1-7, and is used for preparing an antibacterial finishing agent and preparing antibacterial fabrics 13-19.
Example 20
The difference from example 11 is that: the antibacterial agent also included 2kg of microcapsules 1, and an antibacterial finishing agent was prepared to prepare an antibacterial fabric 20.
Example 21
The difference from example 2 is that: the antibacterial agent also comprises 2kg of microspheres 1, and an antibacterial finishing agent and an antibacterial fabric 21 are prepared.
Examples 22 to 24
The difference from example 2 is that: the antibacterial fabrics 22 to 24 were prepared using the blend lines 2 to 4 instead of the blend line 1 in example 2.
Examples 25 to 26
The difference from example 2 is that: the pretreated blend lines 1-2 were used in place of blend line 1 in example 2 to prepare antimicrobial fabric 25-26.
Comparative example
Comparative example 1
This comparative example is different from example 3 in that only nano silver powder was used as an antibacterial agent in this comparative example to prepare the antibacterial fabric 27.
Comparative example 2
This comparative example differs from example 3 in that commercial silver powder was used as the antimicrobial agent in this comparative example to prepare the antimicrobial fabric 28.
Performance test
Performance test
(1) Antibacterial effect test: antibacterial property detection: the test strains adopt A (escherichia coli ATCC 8739) and B (staphylococcus aureus ATCC 6538), the antibacterial performance is evaluated by adopting a bacteriostasis circle method, and the related detection standard is derived from AATCC90-1982 'method for measuring antibacterial property of fibers-plate culture medium method'; and the AATCC 100-2012 antibacterial textile evaluation method is adopted to detect the AATCC 100-2012 antibacterial textile.
Wherein, in the test examples 13 to 19, the fabric was immersed in artificial sweat for 30 seconds to perform antibacterial property detection.
(2) And (3) water resistance washing detection: the water-washing resistance effect of the antibacterial fabric is tested according to AATCC_61-2010-water-washing resistance color fastness, the antibacterial fabric after washing is detected according to AATCC 100-2012 antibacterial textile evaluation method, and the washing times which can keep the sterilization rate of Escherichia coli at 95% are recorded, the detection is carried out 30 times, and the detection is carried out every 5 times after 30 times.
TABLE 8 Performance test for examples 1-24, comparative examples 1-2
TABLE 9 comparative examples 1-2 detection of sterilizing Performance after washing with water
The comparison of performance tests in combination with tables 8 and 9 can be found:
(1) The comparison of examples 1-3, examples 4-5 and comparative examples 1-2 can be found: the antibacterial fabric prepared in the examples 1-5 has improved diameter, sterilization rate and washing resistance, which means that mesoporous titanium dioxide, titanium sol and nanometer silver powder are adopted to cooperate, so that effective load can be formed in the antibacterial agent, the photocatalytic degradation effect of silver ions is improved, and the bonding strength between the antibacterial agent and the blended yarn and between the antibacterial agent and the fabric is effectively improved through coupling grafting and self-adhesion, and the antibacterial strength and the antibacterial durability of the antibacterial fabric are improved. As can be seen from tables 8 and 9, the antibacterial fabrics prepared in examples 2 and 4 have better antibacterial property and washing resistance, which indicates that the antibacterial agent in example 2 has more suitable proportion of each component, and the nano silver powder in example 4 has more suitable proportion of each component.
(2) Comparison of examples 6-7, examples 8-9 and example 2 may be found: the antibacterial fabric prepared in examples 6-9 has improved diameter, sterilization rate and washing resistance, which means that titanium sol is added into the antibacterial agent to ensure that the titanium sol obtains lipophilicity, so that after the titanium sol coats the rest components in the antibacterial agent, the dispersing effect of the antibacterial agent in the antibacterial finishing agent can be effectively improved, and the antibacterial fabric obtains uniform antibacterial effect. As can be seen from tables 8 and 9, the antibacterial fabrics prepared in examples 6 and 8 have better antibacterial and water-washing resistance effects, which indicates that the titanium sol prepared in example 8 has more suitable proportion of each component and the titanium sol prepared in example 4 has more suitable temperature.
(3) Comparison of examples 10-12 with example 2 reveals that: the antibacterial fabric prepared in examples 10-12 has improved diameter, sterilization rate and washing resistance, which means that polysiloxane is added into the antibacterial agent, the combination effect of the antibacterial agent and the antibacterial fabric can be enhanced through the viscosity of the polysiloxane, the polysiloxane can form a film structure, the rest components in the antibacterial agent are separated from the fabric/blended yarn, the possibility of embrittlement of the fabric caused by photocatalytic degradation of titanium element in the antibacterial agent is reduced, and the wearability of the antibacterial fabric is improved. As can be seen from tables 8 and 9, the antibacterial fabric prepared in example 11 is excellent in antibacterial property and water washing resistance, which indicates that the ratio of the components in the polysiloxane is suitable at this time.
(4) As can be seen from the comparison of examples 13 to 15, examples 16 to 17, examples 18 to 19, examples 20 to 21 and example 2: the antibacterial fabric prepared in examples 13-21 has improved diameter, sterilization rate and washing resistance, which means that the antibacterial agent is added with the antibacterial microcapsule, and the pH response shell of the antibacterial microcapsule is endowed, when acidic sweat permeates the antibacterial fabric, the shell of the antibacterial microcapsule responds, and the porous channel is converted into a one-dimensional nano structure, so that the outflow of a core material is effectively increased, the antibacterial effect of the antibacterial agent is enhanced, and the bonding strength of the antibacterial microcapsule and the antibacterial fabric is further enhanced by the nano rod, so that the antibacterial fabric has lasting antibacterial effect. As can be seen from tables 8 and 9, the antibacterial fabrics prepared in examples 14, 16 and 18 have better antibacterial and water-washing resistance effects, which means that the ratio of the components in the outer layer liquid in example 14 is more suitable, the ratio of the components in the inner wall material prepared in example 16 is more suitable, and the pH of the inner wall material prepared in example 18 is more suitable.
(5) Comparison of examples 22-24, examples 25-26 and example 2 can be found: the antibacterial fabrics prepared in examples 22-26 have improved diameter, sterilization rate and washing resistance, which means that the adhesive fiber is added into the mixed yarn, so that the cohesion effect of the mixed yarn can be enhanced, and then the specific surface area of the mixed yarn can be increased by performing plasma treatment, so that the bonding strength between the antibacterial agent and the mixed yarn is effectively improved, and the washing resistance of the antibacterial fabrics is improved. As can be seen from tables 8 and 9, the antibacterial fabric prepared in example 23 has better antibacterial property and water washing resistance, which indicates that the proportion of each component in the blend line is more suitable at this time.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (5)
1. The antibacterial fabric is characterized by being made of blended yarns, wherein the blended yarns comprise nylon fibers and cotton fibers, the blended yarns are finished by antibacterial agents, and the antibacterial agents comprise the following substances in parts by weight: 10-20 parts of nano silver powder, 5-15 parts of titanium dioxide, 5-10 parts of titanium sol and 4-8 parts of silane coupling agent, wherein the titanium dioxide is mesoporous titanium dioxide, and the titanium sol consists of anatase titanium dioxide;
The antibacterial agent also comprises polysiloxane, wherein the polysiloxane is prepared from the following substances in parts by weight: 1-2 parts of chain extension basic silicone oil, 1-2.8 parts of chain extension crosslinking silicone oil, 0.2-0.5 part of reinforcing agent and 0.1-0.2 part of catalyst;
The antibacterial agent also comprises an antibacterial microcapsule, wherein the antibacterial microcapsule comprises a core material and a wall material, the core material comprises one or more of lavender essential oil, tea tree essential oil and cinnamon essential oil, and the wall material comprises 1-pyrene formaldehyde, sodium alginate, acrylic acid and a crosslinking agent;
The preparation of the antibacterial microcapsule comprises the following steps:
Inner wall preparation: according to parts by weight, 10-20 parts of calcium nitrate, 1-2 parts of polyallylamine hydrochloride, 10-20 parts of sodium carbonate, 30 parts of 1-pyrene formaldehyde and 30 parts of EDTA are taken, the calcium nitrate and the polyallylamine hydrochloride are mixed, sodium carbonate is added, stirring is continued, standing and centrifugation are carried out, solids are reserved, and a template is obtained through water washing; soaking a template in 1-pyrene formaldehyde, oscillating, centrifuging, retaining solid particles, soaking the solid particles in EDTA, stirring for reaction, repeatedly centrifuging, retaining solid matters, and washing with water to obtain an inner wall material;
Microsphere preparation: soaking the inner wall material in hydrochloric acid, adjusting pH to be 2-6, carrying out soaking treatment, neutralizing with sodium hydroxide, and washing with water to obtain a pore inner wall material, and soaking the pore inner wall material in a core material to obtain microspheres;
Microcapsule preparation: according to parts by weight, 2-5 parts of sodium alginate, 5-10 parts of acrylic acid, 2-4 parts of cross-linking agent and 0.5-2 parts of initiator are taken, sodium alginate and water are mixed to obtain gel solution, microspheres are immersed in the gel solution to obtain coated microspheres, and the coated microspheres are immersed in calcium chloride solution to obtain gel microspheres; mixing acrylic acid, water and a cross-linking agent under stirring to obtain a mixed solution, adding ammonium persulfate into the mixed solution to obtain an outer layer solution, soaking gel microspheres in the outer layer solution, performing sealing reaction, filtering, retaining solids, washing with water, and drying to obtain the antibacterial microcapsule.
2. An antimicrobial fabric according to claim 1, wherein: the preparation method of the titanium sol comprises the following steps: according to parts by weight, respectively weighing 20-30 parts of butyl titanate, 5-20 parts of hydrochloric acid, 5-10 parts of acetylacetone, 50-150 parts of water and 100-150 parts of ethanol, stirring and mixing the ethanol, the butyl titanate and the acetylacetone, adding the water and the hydrochloric acid, and continuously reacting at 50-70 ℃ to obtain the titanium sol.
3. An antimicrobial fabric according to claim 1, wherein: the blended yarn also comprises adhesive fibers, wherein the mass ratio of the adhesive fibers to the nylon fibers to the cotton fibers is 15-25:25-35:40-60.
4. An antimicrobial fabric according to claim 3, wherein: the said mixed yarn is the mixed yarn pretreated by plasma.
5. The method for preparing the antibacterial fabric as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
S1, preparing nano silver powder: taking 10-15 parts of silver nitrate, 150-250 parts of silicon dioxide, 4-8 parts of glucose and 1-1.5 parts of sodium hydroxide according to weight percentage, mixing the silver nitrate, the silicon dioxide and water, soaking, heating to obtain a premix, adding the glucose and the sodium hydroxide into the premix, stirring and mixing, vacuum filtering, retaining solid matters, washing and drying to obtain nano silver powder;
S2, preparation of an antibacterial agent: taking nano silver powder, titanium dioxide, a silane coupling agent, titanium sol, polysiloxane, an antibacterial microcapsule and water according to a formula, and stirring and mixing to obtain an antibacterial agent;
S3, finishing a blending line: dipping the blended yarn in an antibacterial agent, and dipping and finishing to obtain a finished blended yarn;
S4, preparing an antibacterial fabric: and weaving the blended yarn to obtain a fabric, immersing the fabric in an antibacterial agent, and finishing the fabric by adopting a padding method to obtain the antibacterial fabric.
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