CN101368331A - Cotton fabric inorganic nanometer antibiotic finishing agent and preparation method thereof - Google Patents
Cotton fabric inorganic nanometer antibiotic finishing agent and preparation method thereof Download PDFInfo
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- CN101368331A CN101368331A CNA2008101432810A CN200810143281A CN101368331A CN 101368331 A CN101368331 A CN 101368331A CN A2008101432810 A CNA2008101432810 A CN A2008101432810A CN 200810143281 A CN200810143281 A CN 200810143281A CN 101368331 A CN101368331 A CN 101368331A
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Abstract
The invention discloses ramie cotton fabric inorganic nanometer antibacterial finishing agent and a preparation method thereof. Silver nitrate and micro-molecular organic or inorganic reducing agent, such as ascorbic acid, tannic acid, tartaric acid and the like, are added into polyethyleneglycol and the mixture engages in deoxidization under 5-100 DEG C, producing nanometer silver with good dispersivity and stability. The polyethyleneglycol accounts for 50-90%of the weight and the ratio of silver salt to micro-molecular reducing agent is 1:1-4:1. The prepared nanomemter silver is dispersed in aqueous medium so as to get nanometer silver finishing agent and the weight percentage of nanometer silver is 0.25%-0.5%. The ramie cotton fabric can be made into composite material with excellent antibacterial effect after being soaked in the finishing agent. The fabric made from the antibacterial finishing agent has the characteristics of quick, efficient, broad-spectrum and lasting antibacterial effect. The preparation method and the finishing process are simple in technique and low in cost and have no pollution and are easy to industrialize.
Description
Technical field
The present invention relates to a kind of cotton fabric inorganic nanometer antibiotic finishing agent and preparation method thereof, belong to nano material and technical field.
Background technology
Antibiotic fabric has the blocking-up transmission, and the health of keeping a public place clean, fabric self performance safeguard, comprises that to prevent textile article painted, and advantages such as embrittlement variable color have broad application prospects.Obtain the fabric of anti-microbial property excellence, its key is to select good antiseptic.The antiseptic kind develops into organic compound class antiseptic from initial natural antibacterial agent, arrives high molecular polymer class antiseptic again, develops into the antiseptic of inorganic nano level then.Mainly from natural extractive matter, antibacterial effect is not obvious for natural antibacterial agent; Organic antibacterial agent is all kinds of complex compounds of elements such as nitrogenous, sulphur, chlorine mostly, its principal item has: quaternary ammonium salt, biguanides, alcohols, phenols, aldehydes, organic metal class, arsenic pyridine class, thiophene-based etc., such antibiotic bactericidal effect in a short time is obvious, but poor stability has all mostly that heat-resistant stability is poor, the life-span is short, easily ooze out leachable toxicity, wash resistant not, working life is short, and certain toxicity and volatility are arranged, and easily skin and eyes is caused stimulation.Inorganic antiseptic is just because of its slow release long-acting, heat resistance, and security, the more natural organic antibacterial agent in aspects such as broad spectrum activity and machinability more has superiority, so the parent that inorganic antiseptic is subjected to people day by day looks at.
Inorganic antiseptic mainly is the antibacterial ability that utilizes metals such as silver, copper, zinc and titanium.Wherein the Ag series antibacterial agent has the incomparable antibacterial ability of other metals, bacterium, fungi, mould all there is the excellent antibiotic effect, his antibacterial action have wide spectrum, long-acting, safely, characteristics such as have no side effect, and consumption seldom just can reach good antibacterial effect, good endurance, in human body, be difficult to assemble, chemically be called as " permanent bactericide ", and have nontoxic and non-migrating.Therefore, the Ag series antibacterial agent becomes the first-selected inorganic antiseptic of antibiotic fabric.The Ag series antibacterial agent comprises Nano Silver and carries aluminium powder that for carrying aluminium powder, general particle diameter is bigger with respect to Nano Silver, and mostly is powder, will disperse again when carrying out antibiotic finish.And Nano Silver has that particle diameter is little, specific area is big, anti-microbial property is strong, it is more firm to combine with fabric simultaneously, to characteristics such as other performance impacts of fabric are less.
Summary of the invention
The objective of the invention is in order to obtain a kind of ultra-fine grain diameter, dispersiveness and good stability have the Nano Silver dressing liquid of high-efficiency antimicrobial effect.Add micromolecule reductant ascorbic acid, tannic acid simultaneously, tartaric acid, the purity of raising Nano Silver.It is lasting that obtained Nano Silver dressing liquid is padded processing acquisition antibacterial effect to the linen-cotton fabric, the bedding of broad-spectrum antiseptic.
In order to realize foregoing invention, technical solution of the present invention is:
(1) in polyethylene glycol, add silver salt and micromolecular organic or inorganic reductant ascorbic acid, tannic acid, tartaric acid etc.,
Reduce under 5～100 ℃, obtain the Nano Silver of dispersed and good stability, polyethylene glycol is the non-ionic water-soluble macromolecule, and good stable is arranged, and lubricity can be with Ag
+Be reduced to Ag.As reductant and stabilizing agent, its proportion is 95%-98% with polyethylene glycol, and its molecular weight is not limit, and the polyethylene glycol that can be high molecular also can be low-molecular-weight polyethylene glycol.Silver ion derives from the silver salt of argentiferous, and as silver nitrate, silver salt proportion is 1%-10%.In course of reaction, add and help reductant, help reductant to comprise: micromolecule organic or inorganic reductants such as ascorbic acid, tannic acid, hydrazine hydrate to improve the purity of Nano Silver.The material ratio of silver salt and micromolecule reductant is 1:1-4:1, and micromolecule reductant percentage (weight) is 0.25%-0.5%
(2) prepared Nano Silver is scattered in the aqueous medium, appendix is on fabric.
Above-mentioned inorganic nano-silver antibacterial finishing agent appendix can be prepared the good antimicrobial product of anti-microbial property to fabric, its fabric can be cotton, fiber crops, organic fiber fabric etc., can adopt to add the material that sticks performance that improves its fabric in the appendix process.
(3) ramie cotton fabric is padded processing in dressing liquid, prepare composite with antibacterial functions.
Ramie cotton fabric pads processing in dressing liquid, dressing liquid comprises softener, softener can be that the nonionic softener also can be a cationic softener, dressing liquid water percentage (weight) is 99%, nano silver colloid 0.25%-0.5%, softener 0.025-0.05%, softener can be the nonionic softeners, also can be cationic softeners.Prepared nano silver antibacterial material can be scattered in other monomer and carry out in-situ polymerization, preparation has the macromolecular material of antibacterial functions, also the anti-biotic material of the gained mode by blend can be added in plastics, coating, rubber, synthetic fiber and the adhesive, prepare composite with antibacterial functions.
The present invention has following advantage:
1, the present invention is in whole process of preparation, owing to adopt nontoxic, the good polyethylene glycol of wettability is as the micromolecule reductant of dispersion stabilizer and safety non-toxic such as ascorbic acid, tannic acid, tartaric acid etc., the purity of prepared Nano Silver can reach 99%, little and the narrowly distributing of particle diameter has good storage stability, and whole process of preparation is pollution-free.
2, aluminium powder class antiseptic is carried in contrast, and average grain diameter is littler, and it is 3～20nm, is easier to combine with fabric, has improved the washing resistance of antibiotic fabric.
3, be to carry out antibiotic finish in the soft treatment process at last procedure of textile finishing, got rid of of the influence of other finishing techniques, owing to the surface characteristics of cotton, more help Nano Silver and combine simultaneously with cotton fiber to antibiotic finish.This process is simple, is convenient to industrialization.
The specific embodiment
The present invention will be further described below in conjunction with embodiment:
Embodiment 1
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add 1.2-2.0 gram silver nitrate, tartaric acid 0.4-0.5g, under ultrasonic degas with the oxygen in high pure nitrogen displacement bottle 3-5 time, reacted 3 hours down at 60 ℃, get the 200mL nano silver colloid, the nano silver colloid that prepared stabilizing polymer is disperseed is diluted in the water of 40L, be made into dressing liquid in conjunction with softener 508G 1200g, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Embodiment 2
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add the 1.2-2.0g silver nitrate, ascorbic acid 0.4-0.5g, under ultrasonic degas,,, the nano silver colloid of prepared stabilizing polymer dispersion is diluted in the water of 40L 60 ℃ of reactions 3 hours down with the oxygen in high pure nitrogen displacement bottle 3-5 time, be made into dressing liquid in conjunction with softener 508G 1200g, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Embodiment 3
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add 1.2-2.0 gram silver nitrate, tannic acid 0.2 gram, under ultrasonic degas,,, the nano silver colloid of prepared stabilizing polymer dispersion is diluted in the water of 40L 30 ℃ of reactions 3 hours down with the oxygen in high pure nitrogen displacement bottle 3-5 time, be made into dressing liquid in conjunction with softener 508G 1200g, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Embodiment 4
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add 1.2-2.0 gram silver nitrate, tartaric acid 0.4-0.5g under ultrasonic degas with the oxygen in high pure nitrogen displacement bottle 3-5 time, reacted 3 hours down at 60 ℃, get nano silver colloid, the nano silver colloid that prepared stabilizing polymer is disperseed is diluted in the water of 40L, be made into dressing liquid in conjunction with softener NF-419 400-600g, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Embodiment 5
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add 1.2-2.0 gram silver nitrate, ascorbic acid 0.4-0.5g, with the oxygen in high pure nitrogen displacement bottle 3-5 time, 60 ℃ of reactions 3 hours down, the nano silver colloid that prepared stabilizing polymer is disperseed dilutes under ultrasonic degas, NF-419400-600g is made into dressing liquid in conjunction with softener, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Embodiment 6
In the 250mL there-necked flask, add the 50-200mL polyethylene glycol, add 1.2-2.0 gram silver nitrate, tannic acid 0.2 gram, under ultrasonic degas,,, the nano silver colloid of prepared stabilizing polymer dispersion is diluted in the water of 40L 30 ℃ of reactions 3 hours down with the oxygen in high pure nitrogen displacement bottle 3-5 time, be made into dressing liquid in conjunction with softener NF-419 400-600g, 10 * 2.4m fabric process is padded processing, pick-up 65%, the tentering bake out temperature promptly obtains antibiotic fabric for 100-120 ℃.
Claims (7)
1. cotton fabric inorganic nanometer antibiotic finishing agent and preparation method thereof is characterized in that following several steps:
(1) in polyethylene glycol, add silver nitrate, under 5～100 ℃, reduce, obtain the Nano Silver of dispersed and good stability, in reduction process, can add micromolecular organic or inorganic reductant;
(2) prepared Nano Silver is scattered in the aqueous medium, appendix is on fabric.
(3) ramie cotton fabric is padded processing in dressing liquid, prepare composite with antibacterial functions.
2. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that with polyethylene glycol as reductant and stabilizing agent, its molecular weight is not limit, and the polyethylene glycol that can be high molecular also can be low-molecular-weight polyethylene glycol.
3. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that silver ion derives from the silver salt of argentiferous, as silver nitrate.Add silver nitrate in polyethylene glycol, reaction obtains uniform and stable nano silver colloid at a certain temperature.
4. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that in course of reaction, can adding and help reductant, help reductant to comprise: micromolecule organic or inorganic reductants such as ascorbic acid, tannic acid, hydrazine hydrate.
5. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that above-mentioned inorganic nano-silver antibacterial finishing agent appendix can be prepared the good antimicrobial product of anti-microbial property to fabric, its fabric can be cotton, fiber crops, organic fiber fabric etc., can adopt the material that sticks performance that add to improve itself and fabric in the appendix process.
6. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that ramie cotton fabric is padded processing in dressing liquid, dressing liquid comprises softener, and softener can be that the nonionic softener also can be a cationic softener.
7. according to described a kind of cotton fabric inorganic nanometer antibiotic finishing agent of claim 1 and preparation method thereof, it is characterized in that prepared nano silver antibacterial material to be scattered in other monomer and carry out in-situ polymerization, preparation has the macromolecular material of antibacterial functions, also the anti-biotic material of the gained mode by blend can be added in plastics, coating, rubber, synthetic fiber and the adhesive, prepare composite with antibacterial functions.
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Cited By (25)
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|---|---|---|---|---|
| CN102212806A (en) * | 2010-04-07 | 2011-10-12 | 南京理工大学 | Preparation method of bacterial cellulose-nano silver composite material |
| CN102217651A (en) * | 2010-04-16 | 2011-10-19 | 湖南多喜爱纺织科技有限公司 | Method for preparing inorganic aromatic nano-antibacterial agent and antibacterial fabrics |
| CN101654870B (en) * | 2009-09-18 | 2011-11-09 | 邵楠 | Finishing technology of nanometer anti-bacterial processing environmental-friendly fabric |
| CN102717094A (en) * | 2012-06-11 | 2012-10-10 | 无锡市顺业科技有限公司 | In-situ synthesis method of nanosilver |
| CN102883600A (en) * | 2010-02-24 | 2013-01-16 | 医学生物学联合有限责任公司 | Diversion-and/or abuse-resistant compositions and methods for making the same |
| CN103061147A (en) * | 2011-10-21 | 2013-04-24 | 江苏白玉兰纺织印染有限公司 | Composite antibacterial softening agent |
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| CN103696270A (en) * | 2013-12-18 | 2014-04-02 | 江苏波波熊纺织品有限公司 | Mixed anti-bacteria cashmere softening agent |
| CN103785852A (en) * | 2014-01-25 | 2014-05-14 | 华南理工大学 | Nanometer silver-nanocrystalline cellulose compound, preparation method of nanometer silver-nanocrystalline cellulose compound, and application of nanometer silver-nanocrystalline cellulose compound |
| CN103817348A (en) * | 2014-03-21 | 2014-05-28 | 德华兔宝宝装饰新材股份有限公司 | Nano-silver aqueous solution and application method for applying nano-silver aqueous solution to technical wood |
| CN103981698A (en) * | 2013-02-07 | 2014-08-13 | 无锡市顺业科技有限公司 | Nano silver antibacterial finishing agent and preparation method thereof |
| CN104131457A (en) * | 2014-07-16 | 2014-11-05 | 安徽可丽纳米纺织品有限公司 | Preparation method of antibacterial non-woven fabric and dip padding liquid for preparation |
| CN105019229A (en) * | 2015-08-22 | 2015-11-04 | 钱景 | Preparation method of silver-carrying antibacterial blended fabric |
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| CN106436290A (en) * | 2016-12-18 | 2017-02-22 | 中南大学 | Method for preparing silver antibacterial agent textile by complexing aminoacetic acid and silver nitrate |
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2008
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| CN102883600B (en) * | 2010-02-24 | 2015-11-25 | 尹温斯博生物技术有限责任公司 | The composition and method of making the same of anti-changed course and/or anti-abuse |
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| CN102212806A (en) * | 2010-04-07 | 2011-10-12 | 南京理工大学 | Preparation method of bacterial cellulose-nano silver composite material |
| CN102217651A (en) * | 2010-04-16 | 2011-10-19 | 湖南多喜爱纺织科技有限公司 | Method for preparing inorganic aromatic nano-antibacterial agent and antibacterial fabrics |
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| CN102717094A (en) * | 2012-06-11 | 2012-10-10 | 无锡市顺业科技有限公司 | In-situ synthesis method of nanosilver |
| CN103981698A (en) * | 2013-02-07 | 2014-08-13 | 无锡市顺业科技有限公司 | Nano silver antibacterial finishing agent and preparation method thereof |
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| CN103785852A (en) * | 2014-01-25 | 2014-05-14 | 华南理工大学 | Nanometer silver-nanocrystalline cellulose compound, preparation method of nanometer silver-nanocrystalline cellulose compound, and application of nanometer silver-nanocrystalline cellulose compound |
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| CN106521942B (en) * | 2016-12-01 | 2019-01-01 | 盐城工学院 | The method of allantoin application method and fabricated in situ nano-silver antibacterial finishing textile |
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| CN106390930A (en) * | 2016-12-18 | 2017-02-15 | 中南大学 | Method for preparing silver-loaded activated carbon through glycine and silver nitrate complexation |
| CN106436292A (en) * | 2016-12-18 | 2017-02-22 | 中南大学 | Low-temperature pyrolysis and reduction preparation method for silver-series antibacterial fabric products |
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| CN109487540A (en) * | 2018-10-17 | 2019-03-19 | 华南理工大学 | A kind of antibacterial flame-retardant fabric and preparation method thereof |
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