CN101812801A - Antibacterial functional fibers - Google Patents
Antibacterial functional fibers Download PDFInfo
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- CN101812801A CN101812801A CN200910259933A CN200910259933A CN101812801A CN 101812801 A CN101812801 A CN 101812801A CN 200910259933 A CN200910259933 A CN 200910259933A CN 200910259933 A CN200910259933 A CN 200910259933A CN 101812801 A CN101812801 A CN 101812801A
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Abstract
The invention relates to antibacterial functional fibers and belongs to the field of polymer material. In the invention, carrier fibers and aqueous solution of an inorganic metal antibacterial agent are mixed and stirred at a constant temperature of 0 to 100 DEG C for 10 minutes to 24 hours first, then the fibers are taken out and washed by deionized water till the pH value of the fibers is 6.5 to 7.5, and finally the fibers are dried at 40 to 60 DEG C to give the target product. In the invention, the raw materials are widely available, the synthesis process is simple, the synthesis process is easy to control, and industrial production is easy to realize. The fibers have a broad antibacterial spectrum and long-lasting antibacterial performance, is safe and reliable, and can be made into health-care underwear, insoles, operation clothes, nurse clothes, medical gauzes and the like. The fibers can also be made into nonwoven fabrics used for making filter elements of air purifiers for killing bacteria and germs in the air, and therefore have a promising application prospect.
Description
Technical field
The present invention relates to a kind of antibacterial functional fibers that has, belong to polymeric material field.
Background technology
Metals such as silver, copper, zinc, iron, chromium, nickel, mercury, lead and ion thereof all have the function of sterilization or bacteria growing inhibiting, before more than 2,000 years, the ancient Egyptian carries out medical treatment with regard to spreading on wound with silver-colored thin foil, prevents ulcer, and the herdsman of Chinese Mongolian family also holds mare's milk with Copper Pot and prevents that it is rotten.In many metals, the antibacterial effect of silver is best, make number one, other is followed successively by Ag>Hg>Cu>Cd>Cr>Ni>Pb>Co>Zn>Fe (He Xiuling, Guo Lamei. nano silver-carrying inorganic antiseptic and the application on textiles [J] thereof. the Shanghai textile technology, 2003,31 (3): 54-55).The antiseptic of various different inorganic metal ions prepares one after another.
Along with the increase of people to the functional fiber demand, the development of functional fibre becomes the focus in research work field, particularly anti-bacterial fibre, has applied for many pieces of patents in recent years.Chinese patent 00117568.8 " a kind of broad-spectrum antiseptic fiber preparation method " discloses the method that a kind of method that adopts organic polyacrylonitrile fibre chemical modification prepares New-type wide-spectrum antibacterial functions fiber.This method is a main raw material with hypertoxic type medicine hydrazine hydrate in preparation process, in process of production instrument and equipment performance and operating personnel's protection etc. is required very highly, and the antibacterial effect of product is general.Chinese patent 01129946.0 " a kind of preparation method of metal complexed antibacterial fiber " discloses a kind of preparation method of metal complexed broad-spectrum antiseptic functional fibre.This method is that complexation of metal ions is prepared from the basis of Chinese patent 00117568.8.This method has improved the anti-microbial property of material, but the easy desorption of metal ion, antibiotic limited time.
Summary of the invention
The objective of the invention is to have big, the problems such as antibacterial effect is poor, antibiotic limited time of synthesis material toxicity, and a kind of antibacterial functional fibers that has is provided in order to solve the prior art for preparing anti-bacterial fibre.
The objective of the invention is to be achieved through the following technical solutions:
A kind of antibacterial functional fibers that has of the present invention, its concrete synthetic method is as follows: with the carrier fibre and the inorganic metal antiseptic aqueous solution, by the mixed of every gram carrier fibre adding 15~200ml inorganic metal antiseptic aqueous solution, utilize ionic bond and/or coordinate bond that the inorganic metal antiseptic is fixed on fiber surface; Constant temperature stirs 10min~24h under 0~100 ℃ of condition, takes out fiber, spends deionised water to pH value 6.5~7.5, and is dry under 40 ℃~60 ℃ temperature, can obtain target product.
Wherein, carrier fibre for contain-COOH ,-COONa ,-NH
2,-NH
1-,-SO
3The fiber of one or more functional groups among the Na.
The inorganic metal antiseptic aqueous solution can be with in silver ionized water solution, the copper ion aqueous solution, the zinc ion aqueous solution, the iron ion aqueous solution any one or mix arbitrarily; The mass concentration of the metal ion in the inorganic metal antiseptic aqueous solution is 0.0001%~5%.
When carrier fibre and inorganic metal antiseptic aqueous solution, add additive, but the hydrophily of reinforcing material and submissive performance, additive be in diethylenetriamine, triethylene tetramine, the polymine any one or mix arbitrarily, additive accounts for 0~20% of reactant gross mass.
When the inorganic metal antiseptic aqueous solution was selected silver ionized water solution for use, course of reaction was carried out under the lucifuge condition, in order to avoid photosensitive benefit causes fading of fiber.
Beneficial effect:
(1) anti-bacterial fibre raw material of the present invention are originated and are enriched, and synthesis technique is simple, and building-up process is controlled easily, easily realizes industrialized production.
(2) anti-bacterial fibre of the present invention adopts the inorganic metal antiseptic as the sterilizing activity composition, has the performance of broad-spectrum antiseptic; The existence of additive has strengthened the washability of fiber, antibiotic durability and security.
(3) anti-bacterial fibre of the present invention can be used for preparing antibiotic dress ornament, toy, mouth mask, gloves etc., also can be made into the filter core of air purifier, is with a wide range of applications.
The specific embodiment
Embodiment 1
To contain-NH
2Fiber carrier 1.0g is immersed in the solution that 100mL do not contain additive, silver ion mass ratio 0.0001%, and with the velocity fluctuation 10h of 300 commentaries on classics/min, solid-to-liquid ratio W/V is 1: 100 under 25 ℃.Take out fiber, spend deionised water to pH value 6.5~7.5, dry down at 50 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 0.23%.
Embodiment 2
At room temperature, with 18mL diethylenetriamine mass concentration be 5%, the copper ion mass concentration is slowly to be added drop-wise in 1.2g-COOH fiber type carrier in 2% the solution, the stirring that does not stop, solid-to-liquid ratio W/V is 1: 15.Take out fiber behind the 10min, spend deionised water to pH value 6.5~7.5, dry down at 60 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 5.08%.
Embodiment 3
To contain-COONa fiber carrier 1.0g, be immersed in 200mL polymine mass concentration and be 20%, the silver ion mass concentration is 0.05%, 24h in the solution of zinc ion mass concentration 0.1% is placed in the mixture of ice and water, the stirring that does not stop, solid-to-liquid ratio W/V is 1: 200.Take out fiber, spend deionised water to pH value 6.5~7.5, dry down at 40 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 2.23%.
Embodiment 4
5g is contained-the COONa fiber carrier, be immersed in 750mL triethylene tetramine mass concentration and be 10%, the silver ion mass concentration is 0.03%, 15h in the solution of zinc ion mass concentration 0.1%, 30 ℃ of constant temperature middling speeds vibrations, solid-to-liquid ratio W/V is 1: 150.Take out fiber, spend deionised water to pH value 6.5~7.5, dry down at 40 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 5.08%.
Embodiment 5
With 2g-SO
3The Na fiber carrier, being immersed in 120mL, not contain additive, iron ion mass concentration be that with middling speed vibration 6h, solid-to-liquid ratio W/V is 1: 60 under 100 ℃ of constant temperature in 5% the solution.Take out fiber, spend deionised water to pH value 6.5~7.5, dry down at 60 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 4.23%.
Embodiment 6
General-COOH content be 0.8mmol/g ,-NH
2Content is the fiber carrier 1.2g of 2.3mmol/g, is immersed in 120mL polymine mass concentration and is 1%, the silver ion mass concentration is in 0.01% the solution, and with the velocity fluctuation 5h of 300 commentaries on classics/min, solid-to-liquid ratio W/V is 1: 100 under 25 ℃.Take out fiber, spend deionised water to pH value 6.5~7.5, dry down at 50 ℃ and obtain to have antibacterial functional fibers, the antibacterial activity functional group content is 0.11%.
Regulation according to " disinfection technology standard ", the anti-microbial property of the anti-bacterial fibre of method for preparing can adopt vibration bottle method to estimate, being about to a certain amount of fiber adding to be measured fills in the test organisms nutrient solution of known bacteria concentration, under 37 ℃, speed jolting 0-24h with 300r/min, adopt agar tilt-pour process inoculation plate, carry out count plate and cultivate, bacterial concentration in the solution before and after the test vibration.
Measure the anti-microbial property of the anti-bacterial fibre of above-mentioned 5 embodiment preparation to Escherichia coli and bacillus subtilis effect 1h and 24h respectively by vibration bottle method, test result sees Table 1.
The anti-microbial property of table 1 fiber
Claims (4)
1. one kind has antibacterial functional fibers, it is characterized in that concrete synthetic method is as follows: with the carrier fibre and the inorganic metal antiseptic aqueous solution, add the mixed of 15~200ml inorganic metal antiseptic aqueous solution by every gram carrier fibre; Constant temperature stirs 10min~24h under 0~100 ℃ of condition, takes out fiber, spends deionised water to pH value 6.5~7.5, and is dry under 40 ℃~60 ℃ temperature, can obtain target product;
Wherein, carrier fibre for contain-COOH ,-COONa ,-NH
2,-NH
1-,-SO
3The fiber of one or more functional groups among the Na;
The inorganic metal antiseptic aqueous solution can be with in silver ionized water solution, the copper ion aqueous solution, the zinc ion aqueous solution, the iron ion aqueous solution any one or mix arbitrarily; The mass concentration of the metal ion in the inorganic metal antiseptic aqueous solution is 0.0001%~5%.
2. a kind of antibacterial functional fibers that has as claimed in claim 1 is characterized in that: when the inorganic metal antiseptic aqueous solution was selected silver ionized water solution for use, course of reaction was carried out under the lucifuge condition.
3. a kind of antibacterial functional fibers that has as claimed in claim 1 is characterized in that: when carrier fibre and inorganic metal antiseptic aqueous solution, add additive.
4. a kind of additive that has in the antibacterial functional fibers as claimed in claim 3, it is characterized in that: additive be in diethylenetriamine, triethylene tetramine, the polymine any one or mix arbitrarily, additive accounts for 0~20% of reactant gross mass.
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