CN105821654A - Durable cotton fabric antifungal finishing method based on click chemistry - Google Patents
Durable cotton fabric antifungal finishing method based on click chemistry Download PDFInfo
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- CN105821654A CN105821654A CN201610292977.4A CN201610292977A CN105821654A CN 105821654 A CN105821654 A CN 105821654A CN 201610292977 A CN201610292977 A CN 201610292977A CN 105821654 A CN105821654 A CN 105821654A
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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
- 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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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
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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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention relates to a durable cotton fabric antifungal finishing method based on click chemistry. The durable cotton fabric antifungal finishing method includes the steps that cotton fabric is coarsened, placed in 1-5wt% of 3-mercaptopropyl triethoxy silane KH-580 solution, vibrated, cleaned and dried to obtain pretreated cotton fabric; the pretreated cotton fabric is soaked in a GTAC solution, the pH value is adjusted to be 6-10, and the cotton fabric reacts for 6-8 h under the stirring condition at the temperature of 30-40 DEG C and is cleaned and dried to obtain the cotton fabric with a durable antifungal function. The method is simple and easy to implement, various original excellent properties of the cotton fabric can be kept, hydrophilic dyeing property is improved while antifungal performance is achieved, and the antifungal finishing method is environmentally friendly, safe, and persistent in effect and has no harm to human body and environment.
Description
Technical field
The invention belongs to Cotton Fabric field, particularly to a kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry.
Background technology
Cotton fiber goods because it is soft, ventilative, moisture absorption, the comfortableness of annual dress, function admirable and the advantage such as endurable,
Become one of most popular fabric.But the existence of microorganism can cause textile fiber macromolecules degradation, textile is made to occur
Tendering, variable color, the phenomenon such as go mouldy, affect clothing and the outward appearance of ornament, color and luster.So, give antibacterial textile to carrying
High China health care level and reduction public environment cross-infection rate have important practical value.
And preferably antibiotic finish and technique thereof should meet following condition: nontoxic, do not cause skin allergy or discomfort；Do not affect
Properties of textile or outward appearance；Can be compatible with traditional machining processes and resistance to repeatedly wash.Finishing technique must be environmentally friendly, arranges
After still keep the intrinsic functional of finishing agent, the product arranged has durability and retains the function required for fabric and wearability.
In the past in research, the antibiotic finish of bafta mainly used following methods:
1. surface esterification is modified.Cotton surface amino groups formic acid esterification, urea is heated classification, and the Carbimide. of generation generates ammonia with hydroxyl reaction
Carbamate group, can give material certain biocidal property.The advantage of surface of cotton fabric esterification modification has that technique is simple, low cost,
After rinsing through liquor natrii hypochloritis, the carbamate groups on surface can be changed into N-chloro amido carbamate group, gives cotton and knits
Thing sterilizing function.But, shortcoming is N-chloro amido carbamate group facile hydrolysis, causes antibacterial stability and the regenerability of fabric
Deficiency, processes according to silane coupler, can improve the hydrophobicity of fabric, but heat treatment just can make silicone hydroxyl more than 110 DEG C
It is condensed with the hydroxyl of fabric face, deals with cumbersome.
2. nanometer metallic silver is antibacterial.Coordination is occurred to combine by the sulfydryl of argent with modified fibre surface, thus by argent jail
Consolidation is combined in fabric face, obtains the metallized fabrics with antibacterial functions.But owing to silver exists expensive, easily by oxygen
The problems such as change and safety the unknown, thus be not suitable for promoting on a large scale.Therefore the antibiotic finish studying bafta need to endeavour to solve to resist
Bacterium scope is wide, resistance to persistence is poor, hydrophilic is bad or the problem such as environmental protection；
3. microcapsule antibacterial arranges.The form changing antibacterial through micro encapsulation can reach antibacterial lasting effect.Microcapsule
Technology is to be wrapped in thin polymer film by trace substance, to reach store solids, liquid, gas so that it is under given conditions
The microdisplay package technology that just can slowly discharge.In textile dyeing and finishing industry, microcapsule can be used for the antibacterial, fire-retardant, anti-quiet of textile
The Special Finishings such as electricity, but generally there is the fatal defects of water-wash resistance difference, and function singleness, fabric breathability is poor, thus limits it
Industrialized application.
4. quaternary ammonium salt antibiotic finishing.Strand quaternary ammonium salt, double-strand quaternary ammonium can be classified as by the construction features of quaternary ammonium salt antibiotic finishing agent
Salt, polyquaternary ammonium salt and four big classes of mixing quaternary ammonium salt.At present only the sterilization mechanism of strand quaternary ammonium salt is it was determined that i.e. at thalline
After surface adsorption, its hydrophobic group inserts class lipid layer, changes cell wall and membrane passage, makes intracellular organic matter leak, enzyme or egg
White matter degeneration, last thalline is dead.Antibacterial Mechanism about double-chain quaternary ammonium salt is studied relatively fewer, has researcher to think double-strand season
Ammonium salt belongs to adventitia reactive compound, can be coupled to affect on cell membrane the metabolism of cell, RNA and the conjunction of protein
Become thus affect the energy metabolism of cell.The enzyme that activity research is shown to be in cell membrane is first affected, and then disinfectant is penetrated into thin
Born of the same parents remake for Cytoplasm enzyme.Antibacterial Mechanism about polyquaternary ammonium salt is still not clear equally.With small molecule quaternary ammonium salt except that
Quaternary ammonium salt molecule is after producing high-molecular, and relative molecular mass (hereinafter referred to as molecular weight) increases, and positive charge density improves.Due to micro-
Bloom biological cell surface is electronegative, and the phospholipid that is contained within of cell membrane and the hydrolysis of some memebrane proteins are the most electronegative, therefore, and antibacterial
Molecular weight increases and contributes to adsorbing thalline and being combined with cell membrane.Simultaneously as molecular weight increases, molecular volume becomes big, is expanding
Resistance when dissipating penetration cell wall can increase, but mutually isostructural little point of antibacterial ratio for resultant effect, after producing high-molecular
Bactericidal properties and the stability of sub-monomer are all improved largely.At present, the mechanism of killing livestock of relevant mixing quaternary ammonium salt there is no research report.
But can reasonably speculate, its Antibacterial Mechanism may be interpreted as the tired effect even cooperative effect produced by the mixing of all kinds of quaternary ammonium salts.
There are some researches show, cellulose fibre introduces sulfonic acid group (-SO by covalent bond3-) so that cationic pyridinium quaternary ammonium
Fiber containing anionic group can be combined by salt by ionic bond, and quaternary ammonium salt used is hexadecylpyridinium chloride (CPC)
With benzyl dimethyl cetyl chloride by (BDHAC), it has therefore proved that the introducing of sulfonic acid group, quaternary ammonium salt can be improved to cotton fiber
Affinity so that cotton fiber has good anti-microbial property, but its antibacterial durability is lacked research.And existing patent
CN201310172683.4 finds, is main antibacterial group with BIT derivant, three pyridine rings in pyrrolotriazine derivatives
For assisting antibacterial group, the active substituent of pyrrolotriazine derivatives is potential reactive group, can under 0-40 DEG C and catalyst action
Response type BIT antibacterial finishing agent is prepared with one-step method.
Research currently for durability antibiotic finishing method has been short of.It can reduce the gas that microbial degradation fabric produces
Taste, kills or suppresses antibacterial, reduces the harm to human body, plays health care effect.And the essence of click chemistry is to select easily
Raw material, by reliable, efficiently and have selective chemical reaction and realize heteroatoms and connect (C-X-C), low cost,
The synthetic method of a large amount of noval chemical compound of high efficiency Fast back-projection algorithm.Its core concept is exactly to utilize reaction modular, reliably
Generate containing heteroatomic compound.These reactions are generally of following feature: (1) reaction raw materials is easy to get；(2) operation is simple,
Mild condition, insensitive to water, oxygen；(3) product yield is high, selectivity is good；(4) easy purification of products, post processing are simple.
Will click on chemistry and apply on Antibacterial Finishing of Cotton Fabric, the effect of durability, and Environmental Safety can be reached by chemical bonding.
Summary of the invention
The technical problem to be solved is to provide a kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry, should
Method is simple, is possible not only to the various premium properties making bafta holding original, and improves while endowing antibacterial
Hydrophilic dyeability (cotton before and after processing is dyeed respectively by this performance by reactive brilliant red x-3b, measures K/S value and embodies),
Environmental protection, safety and effectivity, human body and environment will not be worked the mischief.
A kind of based on click chemistry the durability Antibacterial Finishing of Cotton Fabric method of the present invention, including:
(1) bafta is roughened, is subsequently placed in the 3-mercaptopropyltriethoxysilane KH-580 solution of 1-5wt%,
Concussion, cleans, and dries, the pre-treatment bafta obtained；Purpose is for making to increase a lot of sulfydryl on bafta；
(2) pre-treatment bafta in step (1) is immersed in GTAC (2,3-epoxypropyltrimethylchloride chloride) solution,
Bath raio is 50:1, and regulation pH is 6-10,30～40 DEG C of stirring reactions 6～8h, forms firm chemical bond, cleans, dries,
Obtain the bafta with antibacterial functions.
In described step (1), roughening is: be roughened with the sodium hydroxide of 10-20g/L and the paregal O of 5-10g/L；Mesh
Be to remove the symbiosis impurity such as the oils and fats of surface of cotton fabric, waxiness and pectin.
In described step (1), the solvent of KH-580 solution is ethyl acetate；The temperature of concussion is 20～30, and the time is 2～3h.
The compound method of the 3-mercaptopropyltriethoxysilane KH-580 solution of 1-5wt% in described step (1): weigh difference
The 3-mercaptopropyltriethoxysilane of quality, at ethyl acetate solution, obtains the 3-mercaptopropyltriethoxysilane that concentration is 1-5% molten
Liquid.
In described step (2), the mass fraction of GTAC solution is 1～5%, and solvent is water or water-ethanol that volume ratio is 1:1 mixes
Bonding solvent.
In described step (2), the mode of regulation pH is: using pH is the Na of 102CO3/NaHCO3Buffer solution regulates
PH value.
First cotton and 3-mercaptopropyltriethoxysilane are carried out condensation reaction by the present invention, make bafta obtain sulfydryl (-SH).3-
Mercaptopropyltriethoxysilane belongs to silane coupler, is by silicochloroform (HSiCl3) and with the ethylenic unsaturation of reactive group
Hydrocarbon addition under platinum propylhomoserin is catalyzed, then obtain through alcoholysis.A silane coupler substantially class has the silane of organo-functional group,
There is energy and inorganic material (such as glass, silica sand, metal etc.) chemically combined reactive group the most simultaneously and with organic
Material (synthetic resin etc.) chemically combined reactive group.The ethyoxyl of its one end can be utilized by condensation reaction and fiber table
The hydroxyl reaction in face thus form grafting, make fiber obtain modification, become the fiber (reaction mechanism is as shown in Figure 1) of band sulfydryl.
Bafta with sulfydryl forms firm chemical bond with the quaternary ammonium salt (GTAC) of epoxy construction chemical substance by click chemistry, can
Permanent anti-microbial property and good hydrophilic dyeability (reaction mechanism is as shown in Figure 2) can be obtained so that cotton.Owing to quaternary ammonium salt has
There is a bactericidal property of excellence, and have broad-spectrum high efficacy, the advantage such as stable safety low-poison, long-acting, add quaternary ammonium salt energy and fabric
Forming stable chemical bond, anti-microbial property is lasting, and fabric hydrophilic performance is good, before therefore this solution has good development
Scape.
Beneficial effect
The present invention first uses 3-mercaptopropyltriethoxysilane to be modified bafta processing, and makes cotton fiber angle obtain having higher
The sulfydryl of activity；Then reacted by click chemistry, make the quaternary ammonium salt (GTAC) with epoxy construction chemical substance and change with passing through
Property process bafta reaction, by chemical bonding, the strand of quaternary ammonium salt is incorporated in cotton fiber molecule, after treatment
Goods there is antibacterial functions, it is possible to increase the hydrophilic dyeability of bafta, and chemically treated effect also has certain durable
Property；The method not only effect is notable, and safety and environmental protection, human body and environment will not be worked the mischief.
Accompanying drawing explanation
Fig. 1 is the reaction mechanism schematic diagram of 3-mercaptopropyltriethoxysilane；
Fig. 2 is the schematic diagram that GTAC is reacted by click chemistry with the sulfydryl on fiber；
Fig. 3 is surface of cotton fabric scanning electron microscope (SEM) photograph in embodiment 3；Wherein, 3a is former state；3b is KH-580 process；3c is KH-580
GTAC process；
Fig. 4 be in embodiment 3 process before and after bafta infrared spectrogram；
Fig. 5 is bafta antibacterial effect in embodiment 3: gram-negative bacteria escherichia coli: a is former state；B is KH-580 GTAC
Process；After c is circulating water wash；Gram-positive bacteria staphylococcus aureus: d is former state；E is KH-580 GTAC process；
After f is circulating water wash 30 times.
Fig. 6 is that the KH-580 of variable concentrations processes cotton K/S value bar diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments be merely to illustrate the present invention and not
For limiting the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, those skilled in the art can
To make various changes or modifications the present invention, these equivalent form of values fall within the application appended claims limited range equally.
In the embodiment of the present invention, employing grammes per square metre is 130g/m2Twill bafta, KH-580 with GTAC is purchased from
Sigma-Aldrich company. other reagent is all analytical pure, in use without purifying further.
Embodiment 1
Use 3-mercaptopropyltriethoxysilane KH-580 bafta is modified process, and with epoxy construction chemical substance
Quaternary ammonium salt GTAC (2,3-epoxypropyltrimethylchloride chloride) reacts, and makes cotton have good antibacterial functions, and it concretely comprises the following steps:
(1) pre-treatment:
1. 2g cotton is taken；
2. weigh 1.5g sodium hydroxide and cotton is roughened by 0.7g AEO-10 wiring solution-forming, remove the oils and fats of cotton surface, wax
The symbiosis impurity such as matter and pectin；Wherein, the concentration of sodium hydroxide is 15g/L；The concentration of AEO-10 is 7g/L；
3. weigh 1g3-mercaptopropyltriethoxysilane, be placed in 250ML beaker, add in 100ML ethyl acetate, obtain
The 3-mercaptopropyltriethoxysilane solution of 1wt%；
4. cotton is put in solution, sealing film on beaker muzzle；
5. being placed in by beaker in temperature constant magnetic stirring water-bath, 25 DEG C of concussions process 2 hours；
6. cotton is taken out, the most clean in distilled water, 60 DEG C of drying.
(2) Final finishing:
1. the GTAC taking 5g is dissolved in water/ethanol (volume ratio 1:1) solution of 100mL, and being made into mass concentration is 5%
GTAC solution；
2. it is the Na of 10 with pH2CO3/NaHCO3For buffer solution, regulation solution ph is 8.5；
3. being immersed in GTAC solution by the cotton after pre-treatment, bath raio is 50:1, is slowly stirred at 40 DEG C, reacts 8
Hour；
4. take out cotton, fully clean with deionized water, 60 DEG C of drying, i.e. obtain the wool fabric with antibacterial functions.
Embodiment 2
Use 3-mercaptopropyltriethoxysilane KH-580 bafta is modified process, and with epoxy construction chemical substance
Quaternary ammonium salt GTAC (2,3-epoxypropyltrimethylchloride chloride) reacts, and makes cotton have good antibacterial functions, and it concretely comprises the following steps:
(1) pre-treatment:
1. 2g cotton is taken；
2. weigh 1.5g sodium hydroxide and cotton is roughened by 0.7gAEO-10 wiring solution-forming, remove the oils and fats of cotton surface, wax
The symbiosis impurity such as matter and pectin；Wherein, the concentration of sodium hydroxide is 15g/L；The concentration of AEO-10 is 7g/L；
3. weigh 2g 3-mercaptopropyltriethoxysilane, be placed in 250ML beaker, add in 100ML ethyl acetate,
3-mercaptopropyltriethoxysilane solution to 2wt%；
4. cotton is put in solution, sealing film on beaker muzzle；
5. being placed in by beaker in temperature constant magnetic stirring water-bath, 25 DEG C of concussions process 2 hours；
6. cotton is taken out, the most clean in distilled water, 60 DEG C of drying；
(2) Final finishing:
1. the GTAC taking 5g is dissolved in water/ethanol (volume ratio 1:1) solution of 100mL, and being made into mass concentration is 5%
GTAC solution；
2. it is the Na of 10 with pH2CO3/NaHCO3For buffer solution, regulation solution ph is 8.5；
3. being immersed in GTAC solution by the cotton after pre-treatment, bath raio is 50:1, is slowly stirred at 40 DEG C, reacts 8
Hour；
4. take out cotton, fully clean with deionized water, 60 DEG C of drying, i.e. obtain the wool fabric with antibacterial functions.
Embodiment 3
Use 3-mercaptopropyltriethoxysilane KH-580 bafta is modified process, and with epoxy construction chemical substance
Quaternary ammonium salt GTAC (2,3-epoxypropyltrimethylchloride chloride) reacts, and makes cotton have good antibacterial functions, and it concretely comprises the following steps:
(1) pre-treatment:
1. 2g cotton is taken；
2. weigh 1.5g sodium hydroxide and cotton is roughened by 0.7g AEO-10 wiring solution-forming, remove the oils and fats of cotton surface, wax
The symbiosis impurity such as matter and pectin；Wherein, the concentration of sodium hydroxide is 15g/L；The concentration of AEO-10 is 7g/L；
3. weigh 5g 3-mercaptopropyltriethoxysilane, be placed in 250ML beaker, add in 100ML ethyl acetate,
3-mercaptopropyltriethoxysilane solution to 5wt%；
4. cotton is put in solution, sealing film on beaker muzzle；
5. being placed in by beaker in temperature constant magnetic stirring water-bath, 25 DEG C of concussions process 2 hours；
6. cotton is taken out, the most clean in distilled water, 60 DEG C of drying；
(2) Final finishing:
1. the GTAC taking 5g is dissolved in water/ethanol (volume ratio 1:1) solution of 100mL, and being made into mass concentration is 5%
GTAC solution；
2. it is the Na of 10 with pH2CO3/NaHCO3For buffer solution, regulation solution ph is 8.5；
3. being immersed in GTAC solution by the cotton after pre-treatment, bath raio is 50:1, is slowly stirred at 40 DEG C, reacts 8
Hour
4. take out cotton, fully clean with deionized water, 60 DEG C of drying, i.e. obtain the wool fabric with antibacterial functions.
Method of testing according to " on AATCC-100-2004-textile material resistance to antibacterial arrange evaluation criteria " to bafta former state,
Bafta after KH-580 GTAC processes and after being washed is tested, by comparative control sample and the viable bacteria of antibacterial sample
Concentration calculates bacteriostasis rate, thus evaluates antibacterial effect.Using grammes per square metre in test is 130g/m2Twill bafta carry out antibacterial
Arranging, its concrete test result is as follows:
By in bafta (KH-580-1%) through pre-treatment, embodiment 2 in untreated bafta, embodiment 1 through front
In the bafta (KH-580-2%) processed and embodiment 3, the bafta (KH-580-5%) through pre-treatment dyes, respectively
Obtaining maximum K/S value was 2.5096,8.6455,8.9111,9.909 (as shown in Figure 6), can obtain the modified effect of embodiment 3
Good, illustrate that bafta is modified through KH-580, produce sulfydryl, its hydrophilicity improves.And GTAC is small molecule quaternary ammonium salt,
Its quaternary ammonium structure itself has certain hydrophilic, and bafta further increases hydrophilicity with the chemical bonding of GTAC.
Bafta after bafta former state in embodiment 3, KH-580 are processed and the cotton after KH-580 GTAC process
Fabric is scanned electron microscopic observation, obtains SEM comparison spectrogram as shown in Figure 3.See undressed cotton by scanning electron microscope to knit
Thing surface is fluted, and treated surface of cotton fabric becomes smooth, it may be possible to because with GTAC crosslinking and at the table of fiber
Face forms the more uniform gel film of a layer thickness, just creates certain antibiotic property.
Bafta after bafta former state in embodiment 3, KH-580 are processed and the cotton after KH-580 GTAC process
Fabric does examination of infrared spectrum (as shown in Figure 4).Bafta can be obtained modified through KH-580, at 2500cm from spectrogram-1Place goes out
Existing sulfydryl peak, illustrate after Modification of Cotton Fabric containing sulfydryl in need, relatively modified cotton and antibacterial cotton can after GTAC processes,
Sulfydryl peak disappears, it can be verified that sulfydryl reacts with epoxy construction.
Finally, the antibacterial effect that bafta is anti-has been also carried out assessment.Fig. 5 is bafta former state, KH-580 GTAC process
Bafta antibacterial effect comparison diagram to escherichia coli and staphylococcus aureus respectively after bafta (embodiment 3), circulating water wash.
According to AATCC-100-2004 standard, the surface of cotton fabric colony counts through antimicrobial treatment significantly reduces, and contrasts former state large intestine
Bacillus antibiotic rate reaches about 99.44%, and staphylococcus aureus antibiotic rate reaches about 95.93%, and antibacterial effect is obvious.Warp
After crossing 30 circulating water washs, the antibiotic rate comparing former state escherichia coli and staphylococcus aureus remains to respectively reach 93.89% He
About 88.62%, illustrate that anti-microbial property has higher durability.
Claims (7)
1. a durability Antibacterial Finishing of Cotton Fabric method based on click chemistry, including:
(1) bafta is roughened, is subsequently placed in the 3-mercaptopropyltriethoxysilane KH-580 solution of 1-5wt%, shake
Swing, clean, dry, obtain pre-treatment bafta；
(2) pre-treatment bafta in step (1) is immersed in 2, in 3-epoxypropyltrimethylchloride chloride GTAC solution, regulation
PH is 6-10,30～40 DEG C of stirring reactions 6～8h, cleans, dries, obtain the bafta with durability antibacterial functions.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (1), roughening is: be roughened with the sodium hydroxide of 10-20g/L and the paregal O of 5-10g/L.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (1), the solvent of KH-580 solution is ethyl acetate.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (1), the temperature of concussion is 20～30 DEG C, and the time is 2～3h.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (2), pre-treatment bafta is immersed in the bath raio in GTAC solution is 50:1.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (2), the mass fraction of GTAC solution is 1～5%, solvent be water or the mixing of water-ethanol that volume ratio is 1:1 molten
Agent.
A kind of durability Antibacterial Finishing of Cotton Fabric method based on click chemistry the most according to claim 1, it is characterised in that
In described step (2), the mode of regulation pH is: using pH is the Na of 102CO3/NaHCO3Buffer solution regulates pH
Value.
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