CN108977919B - Antibacterial far infrared health care quick-drying polyamide fiber and preparation method and application thereof - Google Patents
Antibacterial far infrared health care quick-drying polyamide fiber and preparation method and application thereof Download PDFInfo
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- CN108977919B CN108977919B CN201810661430.6A CN201810661430A CN108977919B CN 108977919 B CN108977919 B CN 108977919B CN 201810661430 A CN201810661430 A CN 201810661430A CN 108977919 B CN108977919 B CN 108977919B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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Abstract
The invention relates to an antibacterial far infrared health care quick-drying nylon fiber and a preparation method and application thereof, the method comprises the steps of firstly, carrying out surface modification on taiji stone by using a fluorine-containing siloxane solution, hydrolyzing siloxane in the solution, chemically bonding taiji stone nano powder particles with siloxane molecules through chemical bonds, simultaneously, hydrolyzing and combining the siloxane molecules on the taiji stone with other siloxane molecules to continuously increase siloxane molecular chains, winding the siloxane molecular chains growing in the solution on the surface of the taiji stone, enabling the surface of the modified taiji stone to have high cohesiveness similar to 502 glue, then, reacting, curing and combining with common nylon fiber, strongly adhering to the surface of the nylon fiber, and finally, naturally cooling to obtain the antibacterial far infrared health care quick-drying nylon fiber which can be applied to underwear, underpants, socks, sportswear and swimwear The far infrared effect is obvious and durable, the far infrared emissivity reaches more than 92%, and the total antibacterial property reaches more than 92.7%.
Description
Technical Field
The invention belongs to the field of fiber processing, and particularly relates to an antibacterial far infrared health care quick-drying polyamide fiber, and a preparation method and application thereof.
Background
Taiji stone is a natural ore whose main component is silicon dioxide, but also a small amount of titanium dioxide, and various trace metal mineral elements. Its high-frequency resonance frequency is very close to the resonance frequency of human cell molecule, and can promote human body to absorb and gather positive energy, and possesses several excellent functions of far infrared radiation property, UV-resisting property and certain antibacterial property.
According to research and research, the underwear containing taiji stone can obviously promote blood microcirculation of human bodies and promote metabolism. With the discovery of the natural health-care function of the tai chi stone, a plurality of textile functional products related to the tai chi stone are sequentially seen in the market. The products include fiber, yarn and fabric, but in most of the products, regarding the application of the taiji stone, the taiji stone and the spinning solution are blended in the spinning process to process the spinning solution into the fiber, or the fiber is spun into the yarn, or finally the yarn containing the taiji stone is woven into the fabric.
For example, chinese patent (CN104153031A) discloses a health-care fiber capable of promoting human microcirculation and a manufacturing method thereof, which comprises mixing ultrafine tayata stone micropowder with a fiber base material, drying, adding a polymer spinning aid, granulating to obtain tayata stone masterbatch, and mixing the tayata stone masterbatch with homogeneous fiber slices to finally obtain the health-care fiber; chinese patent (CN103726125A) discloses an anti-mite antibacterial polyester staple fiber and a preparation method thereof, wherein the anti-mite antibacterial polyester staple fiber is prepared by preparing micron-sized heat-storage anti-mite ceramic powder containing taiji stone and silver-loaded nano titanium dioxide composite antibacterial powder in an esterification polymerization spinning mode, or preparing the powder into master batches, mixing the master batches with polyester chips, and then spinning to obtain the anti-mite antibacterial polyester staple fiber which has strong antibacterial effect on staphylococcus aureus and escherichia coli; although the health-care fibers related to the two Chinese patents contain the tai chi stone raw material, the tai chi stone nano powder is added into the spinning solution, the addition amount of the tai chi stone nano powder is particularly limited by adding the tai chi stone nano powder into the spinning solution, in order to ensure the spinnability and the spinning uniformity, the addition amount is generally not more than 5 wt%, and the function and the efficacy of the tai chi stone are difficult to be well exerted; chinese patent application (CN105586657A) discloses a method for producing antibacterial far-infrared health-care nylon staple fiber, which comprises the steps of uniformly mixing 5-10 wt% of nano zinc oxide, 10-20 wt% of nano silver oxide and the balance of polymethyl acrylate at a certain temperature and granulating to obtain nano antibacterial master batches, then mixing nylon slices and the nano antibacterial master batches according to a certain weight ratio, heating to a molten state, granulating to obtain master batches, and finally spinning and winding the master batches to obtain the antibacterial far-infrared nylon staple fiber; chinese patent (CN104153098A) discloses a health-care fabric capable of promoting microcirculation of human body, which adopts taiji stone polyamide fiber, but the fiber is produced by adding taiji stone ultrafine micro-nano powder which has the function of promoting microcirculation of human body and is rich in various trace metal mineral elements and far infrared functions in the spinning process, uniformly mixing with homogeneous fiber slices, and spinning by drawing to obtain taiji stone fiber, which also has the technical problems mentioned above.
Disclosure of Invention
The invention provides an antibacterial far infrared quick-drying nylon fiber which is prepared by chemically bonding taiji stones on the surface of a quick-drying nylon fiber in an after-finishing mode so that a fiber product of the antibacterial far infrared quick-drying nylon fiber can maximally exert the function and the effect of the taiji stones, and a preparation method and application thereof, aiming at solving the problems that the amount of the taiji stone nano powder added into a spinning solution is limited and the far infrared and antibacterial effects of the taiji stones cannot be well exerted by the taiji stone fiber/silk yarn in the prior art. The technical scheme provided by the invention is as follows:
a preparation method of antibacterial far infrared health care quick-drying polyamide fiber comprises the following steps:
(1) preparation of Taiji stone fluorine-containing siloxane treatment liquid
Putting a certain amount of fluorine-containing siloxane into a clean vessel, adding a proper solvent for dilution to obtain fluorine-containing siloxane diluent for later use, wherein the mass fraction of the fluorine-containing siloxane diluent is 1-5%;
(2) surface modification of taiji stone
Dispersing a certain amount of the tai chi stone nano powder into the fluorine-containing siloxane diluent prepared in the step (1), wherein the proportion of the tai chi stone nano powder to the fluorine-containing siloxane diluent is 10 g/100-10 g/150ml, dropwise adding an organic acid while stirring and dispersing to adjust the pH value to 3-5, then performing ultrasonic dispersion for 20-120 min, uniformly dispersing and mixing, and then stirring and reacting for 2-6 hours at 20-70 ℃ to complete the surface modification of the tai chi stone;
(3) preparation of antibacterial far infrared health care quick-drying polyamide fiber
Adding common nylon fibers into the reaction liquid obtained after the surface modification of the taiji stone obtained in the step (2) in a bath ratio of 1: 20-1: 100, performing ultrasonic dispersion, performing stirring reaction treatment at 20-60 ℃ for 12-24 hours, taking out the nylon fibers, washing the nylon fibers with a large amount of organic solvent, naturally drying the nylon fibers, curing the nylon fibers at 100-120 ℃ for 5-15 minutes, and naturally cooling to obtain the antibacterial far infrared health care quick-drying nylon fibers.
Preferably, in step (1), the fluorine-containing siloxane is heptadecafluorodecyltriethoxysilane or tridecafluorooctyltriethoxysilane or heptadecafluorodecyltriisopropoxysilane or 3- (heptafluoroisopropoxy) propyltriethoxysilane.
Preferably, in the step (1), when the fluorine-containing siloxane is heptadecafluorodecyltriethoxysilane or heptadecafluorodecyltriisopropoxysilane, the solvent is isopropanol; when the fluorine-containing siloxane is tridecafluorooctyl triethoxysilane or 3- (heptafluoroisopropoxy) propyl triethoxysilane, the solvent is absolute ethanol.
Preferably, in the step (2), the ratio of the tai chi stone nano powder to the fluorine-containing siloxane diluent is preferably 10g/100 ml.
Preferably, in step (2), the organic acid is formic acid, acetic acid or maleic acid.
Preferably, in the step (3), the ultrasonic dispersion time is 2-10 min, and the volume of the reaction solution should be kept constant.
Preferably, in the step (3), the organic solvent is ethanol, tetrahydrofuran or N, N-dimethylformamide, and is preferably a mixed solvent of ethanol and tetrahydrofuran, wherein the volume ratio of the ethanol to the tetrahydrofuran is 1: 2-1: 4.
Preferably, in the step (2), the tai chi stone nano powder is fully dried to remove surface moisture before being dispersed in the fluorine-containing siloxane diluent.
Preferably, the method is characterized in that in the step (3), before the nylon fiber is treated, the nylon fiber is soaked in a mixed solution of ethanol and N, N-dimethylacetamide in a volume ratio of 1: 2-1: 4 to remove impurities on the surface of the nylon fiber.
In addition, the invention also provides the antibacterial far infrared health care quick-drying nylon fiber prepared by the preparation method of the antibacterial far infrared health care quick-drying nylon fiber.
In addition, the invention also provides application of the antibacterial far infrared health care quick-drying nylon fiber, which is characterized by being applied to underwear, underpants, socks, sports wear and swim wear.
The beneficial technical effects obtained by the invention are as follows:
1. the invention breaks through the conventional method for preparing the raw material filament containing the tai chi stone by adding the tai chi stone nano powder into the spinning solution, and chemically bonds the tai chi stone on the surface of the quick-drying nylon fiber in a post-finishing mode, so that the fiber product can permanently and maximally exert the antibacterial and far infrared effects of the tai chi stone;
2. the method comprises the steps of firstly carrying out surface modification on the tai chi stone by using fluorine-containing siloxane treatment liquid with a certain concentration, wherein siloxane is subjected to hydrolysis reaction in the solution, so that tai chi stone nano powder particles are chemically bonded with siloxane molecules through chemical bonds, and meanwhile, the siloxane molecules on the tai chi stone are hydrolyzed and combined with other siloxane molecules, so that siloxane molecular chains are continuously increased, and long siloxane molecular chains in the solution are easily wound on the surface of the tai chi stone, so that the modified tai chi stone surface has high cohesiveness similar to 502 glue, and then are combined with common polyamide fiber, so that the tai chi stone nano powder particles are strongly adhered to the surface of the polyamide fiber, and the antibacterial and far infrared effects of the tai chi stone are more remarkable, and the antibacterial and far infrared effects of the tai chi stone are hardly weakened after multiple times of water washing;
3. the method has the advantages that the post-finishing treatment method is simple, the cost performance is high, the treatment process conditions are mild, the performance damage to the nylon fibers is small, the post-finishing process parameters are optimized through multiple tests, the taiji stone is optimized and modified to be firmly and durably combined with the nylon fibers, and the taiji stone nylon fiber product has lasting, remarkable antibacterial and far infrared health-care effects; the far infrared emissivity of the material reaches more than 92 percent; the antibacterial property to staphylococcus aureus, escherichia coli and candida albicans reaches 95.7%, 92.7% and more than 95.1% respectively.
Drawings
FIG. 1 is a schematic view of the principle of modifying the surface of Tai Chi stone according to the present invention;
FIG. 2 is a microscope photograph of the surface morphology of antibacterial far infrared health care quick-drying nylon fiber in the representative example of the present invention (example 3);
FIG. 3 is a graph showing the results of an antibacterial test control of an antibacterial far infrared health care quick-drying polyamide fiber according to a representative embodiment (example 3) of the present invention, in which
A is a golden yellow staphylococcus blank sample agar plate picture; b is a golden yellow staphylococcus test sample agar plate picture; c is a diagram of an agar plate of a blank sample of the escherichia coli ball; d is an agar plate picture of an escherichia coli test sample; e is a Candida albicans blank agar plate picture; f is the picture of an agar plate of a candida albicans test sample.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It is to be understood that these examples are for purposes of illustration only and are not intended to limit the scope of the present invention, which is to be construed as merely preferred or presently preferred embodiments of the invention; further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the technical contents of the present invention, and those equivalents also fall within the scope of the present invention defined by the appended claims.
Example 1
A preparation method of antibacterial far infrared health care quick-drying polyamide fiber comprises the following steps:
(1) preparing the taijishi fluorosilicone treatment fluid. Taking a certain amount of heptadecafluorodecyltriethoxysilane, putting into a clean vessel, adding a proper amount of isopropanol solvent for dilution for standby application, and enabling the volume of the heptadecafluorodecyltriethoxysilane diluent to be 100mL and the mass fraction to be 5%.
(2) Surface modification of the tai chi stone nano powder. And (2) dispersing 10g of commercially available taijishi nano powder into the heptadecafluorodecyltriethoxysilane diluent prepared in the step (1), fully stirring and dispersing, dropwise adding formic acid to adjust the pH value to 3, then dispersing for 120min by ultrasonic waves, uniformly dispersing and mixing, and then stirring and reacting for 6 hours at 40 ℃, wherein the heptadecafluorodecyltriethoxysilane can generate hydrolysis reaction in the solution, including the self molecules of siloxane and the particles of the taijishi. Firstly, the taiji stone particles are chemically bonded with siloxane through chemical bonds through hydrolysis reaction, then siloxane molecules on the taiji stone are subjected to hydrolytic bonding with other siloxane molecules, so that siloxane molecular chains are continuously increased, long siloxane molecular chains in a solution are wound on the surface of the taiji stone, the surface of modified taiji stone nano powder has high bonding property similar to 502 glue, the surface modification of the taiji stone is completed, and the molecular structure of the modified taiji stone is shown in figure 1.
(3) Preparing the antibacterial far infrared health care quick-drying polyamide fiber. Weighing 5g of common nylon fiber, adding the common nylon fiber into the reaction liquid obtained after the surface modification of the tai chi stone in the step (2) according to the bath ratio of 1:20, performing ultrasonic dispersion for 10min, performing stirring reaction treatment at 60 ℃ for 24h, taking out the nylon fiber, washing the nylon fiber with a large amount of tetrahydrofuran solvent, naturally drying the nylon fiber, curing the nylon fiber at 120 ℃ for 15min, strongly adhering the modified high-adhesion tai chi stone nano powder to the surface of the nylon fiber, and naturally cooling the nylon fiber to obtain the antibacterial far-infrared health care quick-drying nylon fiber.
Example 2
A preparation method of antibacterial far infrared health care quick-drying polyamide fiber comprises the following steps:
(1) preparing the taijishi fluorosilicone treatment fluid. Taking a certain amount of heptadecafluorodecyl triisopropoxysilane into a clean vessel, adding a proper amount of isopropanol solvent for dilution for standby, and enabling the volume of the heptadecafluorodecyl triisopropoxysilane diluent to be 120mL and the mass fraction to be 3%.
(2) Surface modification of the tai chi stone nano powder. And (2) fully drying the surface of 10g of the commercially available taijishi nano powder, dispersing the powder into the heptadecafluorodecyl triisopropoxysilane diluent prepared in the step (1), fully stirring and dispersing, dropwise adding acetic acid to adjust the pH value to 4, then dispersing for 60min by ultrasonic waves, uniformly mixing and stirring for reaction for 4 hours at the temperature of 30 ℃, wherein the heptadecafluorodecyl triisopropoxysilane can generate hydrolysis reaction in the solution, including siloxane self molecules and siloxane and taijishi particles. Firstly, the taiji stone particles are chemically bonded with siloxane through chemical bonds through hydrolysis reaction, then siloxane molecules on the taiji stone are subjected to hydrolytic bonding with other siloxane molecules, so that siloxane molecular chains are continuously increased, long siloxane molecular chains in a solution are wound on the surface of the taiji stone, the surface of modified taiji stone nano powder has high bonding property similar to 502 glue, the surface modification of the taiji stone is completed, and the molecular structure of the modified taiji stone is shown in figure 1.
(3) Preparing the antibacterial far infrared health care quick-drying polyamide fiber. Soaking common nylon fibers in a mixed solution of ethanol and N, N-dimethylacetamide at a volume ratio of 1:2 to remove impurities on the surfaces of the nylon fibers, weighing 2g of the nylon fibers after impurity removal, adding the nylon fibers into the reaction liquid obtained after the surface modification of the tai chi stone in the step (2) at a bath ratio of 1:60, performing ultrasonic dispersion for 6min, performing stirring reaction treatment at 40 ℃ for 16h, taking out the nylon fibers, washing the nylon fibers with a large amount of ethanol solvent, naturally drying the nylon fibers, curing the nylon fibers at 110 ℃ for 10min, strongly adhering the modified high-bonding tai chi stone nano powder to the surfaces of the nylon fibers, and finally naturally cooling the nylon fibers to obtain the antibacterial far-infrared health care quick-drying nylon fibers.
Example 3
A preparation method of antibacterial far infrared health care quick-drying polyamide fiber comprises the following steps:
(1) preparing the taijishi fluorosilicone treatment fluid. Taking a certain amount of tridecafluorooctyltriethoxysilane, putting into a clean vessel, adding a proper amount of absolute ethyl alcohol solvent for dilution for standby application, and enabling the volume of the tridecafluorooctyltriethoxysilane diluent to be 100mL and the mass fraction to be 3%.
(2) Surface modification of the tai chi stone nano powder. And (2) fully drying the surface of 10g of the commercially available taijie stone nano powder, dispersing the powder into the tridecafluorooctyltriethoxysilane diluent prepared in the step (1), fully stirring and dispersing, dropwise adding acetic acid to adjust the pH value to 4, then dispersing for 70min by ultrasonic waves, uniformly dispersing and mixing, and stirring and reacting for 4 hours at 50 ℃, wherein the volume of a reaction liquid is kept constant in the reaction process, and the tridecafluorooctyltriethoxysilane can undergo hydrolysis reaction in the solution, including the molecular of siloxane and the particles of the siloxane and the taijie stone. Firstly, the taiji stone particles are chemically bonded with siloxane through chemical bonds through hydrolysis reaction, then siloxane molecules on the taiji stone are subjected to hydrolytic bonding with other siloxane molecules, so that siloxane molecular chains are continuously increased, long siloxane molecular chains in a solution are wound on the surface of the taiji stone, the surface of modified taiji stone nano powder has high bonding property similar to 502 glue, the surface modification of the taiji stone is completed, and the molecular structure of the modified taiji stone is shown in figure 1.
(3) Preparing the antibacterial far infrared health care quick-drying polyamide fiber. Soaking common nylon fibers in a mixed solution of ethanol and N, N-dimethylacetamide at a volume ratio of 1:3 to remove impurities on the surfaces of the nylon fibers, weighing 2.5g of the nylon fibers after impurity removal, adding the nylon fibers into the reaction liquid obtained after the tai chi stone surface modification in the step (2) at a bath ratio of 1:40, performing ultrasonic dispersion for 6min, stirring and reacting at 50 ℃ for 18h, keeping the volume of the reaction liquid constant in the reaction process, taking out the nylon fibers, washing the nylon fibers with a large amount of mixed solvent of ethanol and tetrahydrofuran at a volume ratio of 1:3, naturally airing, curing at 110 ℃ for 10min, strongly adhering the modified high-adhesion tai chi stone nano powder to the surfaces of the nylon fibers, and naturally cooling to obtain the antibacterial far-infrared health care quick-drying nylon fibers. In this embodiment, as a representative embodiment, the inventor of the present application takes the sample of this embodiment as an observation object, and performs scanning electron microscope observation on the antibacterial far infrared health care quick-drying nylon fiber prepared by the sample, wherein relatively dense tai chi stone nano powder particles are clearly distributed on the surface of the nylon fiber, and an electron microscope image thereof is shown in fig. 2.
Example 4
A preparation method of antibacterial far infrared health care quick-drying polyamide fiber comprises the following steps:
(1) preparing the taijishi fluorosilicone treatment fluid. A certain amount of 3- (heptafluoro-isopropoxy) propyl triethoxysilane is taken and put into a clean vessel, and a proper amount of absolute ethyl alcohol solvent is added for dilution for standby application, so that the volume of 3- (heptafluoro-isopropoxy) propyl triethoxysilane diluent is 150mL, and the mass fraction is 1%.
(2) Surface modification of the tai chi stone nano powder. And (2) fully drying the surface of 10g of the commercially available taijie stone nano powder, dispersing the commercially available taijie stone nano powder into the 3- (heptafluoroisopropoxy) propyltriethoxysilane diluent prepared in the step (1), fully stirring and dispersing, dropwise adding maleic acid to adjust the pH value to 5, then dispersing for 20min by ultrasonic waves, stirring and reacting for 2 hours at 70 ℃ after uniformly dispersing and mixing, wherein the volume of a reaction solution is kept constant in the reaction process, and the 3- (heptafluoroisopropoxy) propyltriethoxysilane can undergo hydrolysis reaction in the solution, including the self molecules of siloxane and the siloxane and taijie stone particles. Firstly, the taiji stone particles are chemically bonded with siloxane through chemical bonds through hydrolysis reaction, then siloxane molecules on the taiji stone are subjected to hydrolytic bonding with other siloxane molecules, so that siloxane molecular chains are continuously increased, long siloxane molecular chains in a solution are wound on the surface of the taiji stone, the surface of modified taiji stone nano powder has high bonding property similar to 502 glue, the surface modification of the taiji stone is completed, and the molecular structure of the modified taiji stone is shown in figure 1.
(3) Preparing the antibacterial far infrared health care quick-drying polyamide fiber. Soaking common nylon fibers in a mixed solution of ethanol and N, N-dimethylacetamide at a volume ratio of 1:4 to remove impurities on the surfaces of the nylon fibers, weighing 1.5g of the nylon fibers after impurity removal, adding the nylon fibers into the reaction liquid obtained after the surface modification of the tai chi stone in the step (2) at a bath ratio of 1:100, performing ultrasonic dispersion for 2min, performing stirring reaction at 20 ℃ for 12h, keeping the volume of the reaction liquid constant in the reaction process, taking out the nylon fibers, washing the nylon fibers with a large amount of N, N-dimethylformamide solvent, naturally drying the nylon fibers, curing the nylon fibers at 100 ℃ for 5min, strongly adhering the modified high-adhesion tai chi stone nano powder to the surfaces of the nylon fibers, and naturally cooling the nylon fibers to obtain the antibacterial far-infrared health care quick-drying nylon fibers.
The antibacterial far infrared health care quick-drying nylon fiber prepared by the embodiments 1-4 of the invention has good antibacterial property and far infrared property, and the nylon fiber is especially suitable for being applied to underwear, underpants, socks, sportswear and swimwear.
EXAMPLES 1-4 PERFORMANCE TESTING OF QUICK-DRYING POLYNYLON FIBERS AFTER-FINISHING
1. Far infrared performance tests were carried out on the nylon fibers prepared in examples 1 to 4 of the present invention according to GB/T30127-2013 for detecting and evaluating far infrared performance of textiles, and the test results are shown in Table 1.
Table 1 examples 1-4 far infrared performance test results of antibacterial far infrared health care quick-drying polyamide fiber
| Source of test sample | Far infrared emissivity | Far infrared wavelength range | Far infrared radiation temperature rise value |
| Example 1 | 93％ | 10～15μm | 1.7℃ |
| Example 2 | 93％ | 10～15μm | 1.7℃ |
| Example 3 | 94％ | 10～15μm | 1.7℃ |
| Example 4 | 92％ | 10～15μm | 1.7℃ |
According to the test result, the antibacterial far infrared health care quick-drying nylon fiber produced by the production method has the far infrared emissivity of more than 92 percent, the far infrared radiation temperature rise value of 1.7 ℃, which exceeds the technical requirements that the far infrared emissivity of textile materials for the far infrared performance test is more than or equal to 88 percent, the far infrared radiation temperature rise value is more than or equal to 1.4 ℃, the far infrared wavelength range of the nylon fiber is close to the wavelength of a human body, and the emitted far infrared is absorbed by the human body, so that the nylon fiber can promote the blood circulation and metabolism of the human body, improve the immunity of the human body and is beneficial to health.
2. According to GB/T20944.3-2008, evaluation of antibacterial performance of textiles part 3: shaking method, the nylon fibers prepared in examples 1-4 of the present invention were tested for antibacterial effects of Staphylococcus aureus (AATCC6538), Escherichia coli (AATCC8739) and Candida albicans (AATCC10231), and the test results are shown in Table 2.
Table 2 examples 1-4 antibacterial far infrared health care quick-drying polyamide fiber antibacterial property test results
By adopting the method, the taiji stone nano powder modified by the fluorine-containing siloxane has high viscosity similar to 502 glue and can be strongly and durably adhered to the surface of the nylon fiber, so that the nylon fiber has remarkable antibacterial and far infrared effects, the nylon fiber after finishing in the embodiments 1-4 of the invention is soaked and washed for multiple times, and the antibacterial and far infrared performances of a test sample after being soaked and washed for 30 times are hardly weakened.
The above embodiments of the present invention and the experimental results thereof are described in detail, and it will be apparent to those skilled in the art that the embodiments may be changed, modified, replaced, integrated and modified in the process parameters without departing from the spirit and the principle of the present invention.
Claims (10)
1. A preparation method of antibacterial far infrared health care quick-drying polyamide fiber is characterized by comprising the following steps:
(1) preparation of Taiji stone fluorine-containing siloxane treatment liquid
Putting a certain amount of fluorine-containing siloxane into a clean vessel, adding a proper solvent for dilution to obtain fluorine-containing siloxane diluent for later use, wherein the mass fraction of the fluorine-containing siloxane diluent is 1-5%; the fluorine-containing siloxane is heptadecafluorodecyltriethoxysilane or tridecafluorooctyltriethoxysilane or heptadecafluorodecyltriisopropoxysilane or 3- (heptafluoroisopropoxy) propyltriethoxysilane;
(2) surface modification of taiji stone
Dispersing a certain amount of the tai chi stone nano powder into the fluorine-containing siloxane diluent prepared in the step (1), wherein the proportion of the tai chi stone nano powder to the fluorine-containing siloxane diluent is 10 g/100-150 ml, dropwise adding an organic acid while stirring and dispersing to adjust the pH to 3-5, then performing ultrasonic dispersion for 20-120 min, uniformly dispersing and mixing, and then stirring and reacting for 2-6 hours at 20-70 ℃ to complete the surface modification of the tai chi stone;
(3) preparation of antibacterial far infrared health care quick-drying polyamide fiber
Adding common nylon fibers into the reaction liquid obtained after the surface modification of the taiji stone obtained in the step (2) in a bath ratio of 1: 20-1: 100, performing ultrasonic dispersion, performing stirring reaction treatment at 20-60 ℃ for 12-24 hours, taking out the nylon fibers, washing the nylon fibers with a large amount of organic solvent, naturally drying the nylon fibers, curing the nylon fibers at 100-120 ℃ for 5-15 minutes, and naturally cooling to obtain the antibacterial far infrared health care quick-drying nylon fibers.
2. The method for preparing nylon fiber according to claim 1, wherein in the step (1), when the fluorine-containing siloxane is heptadecafluorodecyltriethoxysilane or heptadecafluorodecyltriisopropoxysilane, the solvent is isopropanol; when the fluorine-containing siloxane is tridecafluorooctyl triethoxysilane or 3- (heptafluoroisopropoxy) propyl triethoxysilane, the solvent is absolute ethanol.
3. The method for preparing nylon fiber according to claim 1, wherein in the step (2), the ratio of the tai chi stone nano powder to the fluorine-containing siloxane diluent is 10g/100ml, and the organic acid is formic acid, acetic acid or maleic acid.
4. The method for preparing nylon fiber according to any one of claims 1-3, wherein in step (3), the ultrasonic dispersion time is 2-10 min, and the volume of the reaction solution should be kept constant.
5. A method for preparing nylon fiber according to any one of claims 1-3, wherein in step (3), the organic solvent is ethanol, tetrahydrofuran or N, N-dimethylformamide.
6. The method for preparing nylon fiber according to any one of claims 1-3, wherein in step (3), the organic solvent is a mixed solvent of ethanol and tetrahydrofuran, and the volume ratio of the ethanol to the tetrahydrofuran is 1: 2-4.
7. A preparation method of nylon fiber according to any one of claims 1-3, wherein in step (2), the tai chi stone nanopowder is fully dried to remove surface moisture before being dispersed in the fluorine-containing siloxane diluent.
8. The preparation method of nylon fiber according to any one of claims 1-3, wherein in step (3), the nylon fiber is soaked in a mixed solution of ethanol and N, N-dimethylacetamide in a volume ratio of 1: 2-4 to remove impurities on the surface of the nylon fiber before being treated.
9. An antibacterial far infrared health care quick-drying nylon fiber prepared by the preparation method of the nylon fiber according to any one of claims 1-8.
10. The use of the antibacterial far infrared health care quick-drying nylon fiber according to claim 9, characterized in that the nylon fiber is applied to underwear, underpants, socks, sports wear and swimwear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810661430.6A CN108977919B (en) | 2018-06-25 | 2018-06-25 | Antibacterial far infrared health care quick-drying polyamide fiber and preparation method and application thereof |
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| CN201810661430.6A CN108977919B (en) | 2018-06-25 | 2018-06-25 | Antibacterial far infrared health care quick-drying polyamide fiber and preparation method and application thereof |
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| Publication Number | Publication Date |
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