CN115029814A - Fiber with antiviral germ and far infrared protection health care function and preparation method thereof - Google Patents
Fiber with antiviral germ and far infrared protection health care function and preparation method thereof Download PDFInfo
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- CN115029814A CN115029814A CN202210468163.7A CN202210468163A CN115029814A CN 115029814 A CN115029814 A CN 115029814A CN 202210468163 A CN202210468163 A CN 202210468163A CN 115029814 A CN115029814 A CN 115029814A
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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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
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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 discloses a fiber with antiviral germ and far infrared protection health care function and a preparation method thereof, wherein the method comprises the following steps: step 1, preparing nano-grade modified phase change diene energy storage material mixed powder; step 2, preparing nano-scale modified tourmaline and copper oxide mixed powder; step 3, uniformly mixing the two kinds of powder obtained in the step 1 and the step 2 to obtain nano modified composite material powder, then mixing the nano modified composite material powder with polyester chips, and extruding the mixture through a screw extruder to obtain a nano modified diene polyester composite material; and 4, drying the nano modified diene polyester composite material, then taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and preparing the polyester composite fiber through a melt spinning process. The invention also provides a fiber prepared by the method. The composite fiber prepared by the invention has excellent functions of resisting virus and germs, far infrared, increasing oxygen by negative ions, resisting mites, resisting static electricity, resisting ultraviolet, resisting radiation and the like.
Description
Technical Field
The invention relates to a multifunctional composite fiber and a preparation method thereof, in particular to a polyester composite fiber with antiviral pathogen, far infrared protection and health care functions and a preparation method thereof.
Background
With the high development of production and technology, the natural environment is seriously damaged. A large amount of waste gas, waste water and waste generated in industrial production are continuously discharged into the environment, and the ecological system and the ecological balance of the nature are seriously damaged. The excessive emission of carbon dioxide causes global warming, and natural disasters such as flood, drought, earthquake, typhoon, mountain landslide, tsunami and the like are often caused. The imbalance of the environment causes continuous outbreak and pandemic of various viruses and germs, and seriously affects the health of people. The most painstaking, most dangerous medical workers and soldiers who undertake a great deal of preventive and rescue work are urgently developing a multifunctional composite fiber in which various raw materials are used as required for processing.
The graphene is a hexagonal honeycomb two-dimensional crystal formed by hybridizing single-layer carbon atoms with SP2, and has a special two-dimensional structure and excellent performance. Researches show that the graphene has ultrahigh mechanical strength, excellent electric and heat conducting properties, antiviral and germ-resistant properties, antistatic properties and ultraviolet-resistant properties, and also has the function of absorbing and radiating up to 40 percent of far infrared rays. The graphene fiber is widely applied to the fields of biomedical materials, energy storage materials, optics and the like; has wide application prospect in textiles and clothes.
"white graphene" is Hexagonal Boron Nitride (henxagonal Boron Nitride, abbreviated as h-BN) with grains in a lamellar structure. The nano-sheet obtained after stripping is also named as the nano-sheet. Since the structure of hexagonal boron nitride is very similar to that of graphite, has a hexagonal layered structure, is soft in texture, is highly machinable, and is white in color, corresponding to graphene, hexagonal boron nitride is called "white graphene". The white graphene has high transparency, chemical inertness, high mechanical strength, high thermal stability, good thermal conductivity and electrical insulativity, unique ultraviolet light emitting performance, good lubricity, excellent antibacterial performance, heat dissipation performance, ultraviolet resistance and other performances. The white graphene fiber has great development potential on textiles and clothes.
A phase change energy storage material is a substance that changes state due to a change in temperature while providing latent heat. The material state is divided into solid, liquid and gas. The material has the functions of absorbing and releasing energy, storing heat and storing cold in the process of phase change and isothermy, and can meet the functional requirements of being warm in winter and cool in summer.
Tourmaline is the general term of tourmaline group minerals, has complex chemical components, and is a silicate mineral with a ring structure of aluminum, sodium, iron, magnesium and lithium characterized by containing boron. Tourmaline has the unique properties of pyroelectric effect, piezoelectric effect, spontaneous polarization effect, surface activity and adsorptivity, electrical conductivity, far infrared radiation, negative ion release and the like, and can cause the potential difference of tourmaline crystals when the temperature, the humidity, the pressure and the like are changed, so that the surrounding air is ionized, namely negative oxygen ions are generated in the air, and the aim of purifying the air is fulfilled. The tourmaline is compounded with other materials by physical or chemical methods to prepare various functional materials, and is applied to the fields of environmental protection, electronics, medicine, chemical industry, light industry, building materials and the like.
Copper is the essential microelement of human body itself, is only inferior to iron and zinc in the human body content, and the third place is in the microelement centre, can carry out normal metabolism: copper can stimulate the regrowth of collagen in the skin, and copper ion fibers can promote the metabolism of the skin after contacting with the skin and accelerate the healing of the damaged skin. Copper is also a catalyst for oxidation process in cells, has inhibitory effect on bacteria and viruses, and has antibacterial and antiviral effects. The specific mushroom-shaped microporous structure of the copper particles has strong adsorption and killing capacity on microorganisms, can kill various bacteria, fungi and viruses, and has the sterilization rate of over 99 percent; and the antiviral property is excellent, and the inactivation rate of the H1N1 virus reaches more than 99 percent. The nano-copper can adsorb various harmful peculiar smells such as VOC (volatile organic Compounds) and the like by virtue of excellent specific surface area, can prevent fungi from breeding and plays a role in resisting bacteria and deodorizing. The antibacterial mechanism of the nano copper is that under the action of charge attraction, positively charged copper ions are contacted with negatively charged bacteria, the copper ions can enter into cells of the bacteria, so that the cell walls of the bacteria are subjected to wall breaking and cell sap outflow, and the bacteria are killed, and meanwhile, the copper ions entering into the cells can act with protease and the like in the bacteria cells, so that the enzyme is denatured and inactivated, and the bacteria and the like are killed.
The polyester fiber, also called as terylene fiber, is a chemical fiber with low cost, good performance and extremely wide application. The composite fiber has the characteristics of high strength, high modulus, stiffness, crease resistance, high thermal stability, strong wear resistance and the like, and is high in cost performance and is a high-quality carrier for functional composite fibers. However, the traditional polyester fiber has no functionality, and along with social development, the traditional polyester fiber cannot meet the requirements of people on functional textiles.
Disclosure of Invention
The invention aims to provide a polyester composite fiber with antiviral, far infrared protection and health care functions and a preparation method thereof, and the obtained composite fiber has multiple excellent functions and is suitable for the industries of textile clothing, medical care, military industry, home textile, architectural decoration, environmental protection, electronics and the like.
In order to achieve the aim, the invention provides a preparation method of fiber with antiviral germs and far infrared protection health care functions, wherein the method comprises the following steps: step 1, preparing nano-grade modified phase change diene energy storage material mixed powder; step 2, preparing nano-scale modified tourmaline and copper oxide mixed powder; step 3, uniformly mixing the nano-modified phase-change diene energy storage material mixed powder obtained in the step 1 and the nano-modified tourmaline and copper oxide mixed powder obtained in the step 2 to obtain nano-modified composite material powder, mixing the nano-modified composite material powder with polyester slices, and extruding the mixture through a screw extruder to obtain a nano-modified diene polyester composite material; and 4, drying the nano modified diene polyester composite material obtained in the step 3, then taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and preparing the polyester composite fiber through a melt spinning process.
Preferably, in the step 1, 15-30 parts of graphene material, 15-30 parts of white graphene material, 20-35 parts of phase change energy storage material and 3-5 parts of dispersing agent are added into absolute ethyl alcohol by mass, and a centrifugal stirrer is used for stirring and dispersing for 10-20 min; and adding a silane coupling agent solution prepared by diluting with absolute ethyl alcohol, keeping the mass concentration of the silane coupling agent in the absolute ethyl alcohol mixed solution at 3-10%, continuously centrifuging and stirring for 10-15min to obtain a modified phase-change diene energy storage material mixed solution, removing the redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding a vertical spiral stirring ball mill for grinding to obtain powder with the fineness of 1-50 mu m, and obtaining the nano-scale modified phase-change diene energy storage material mixed powder.
Preferably, the graphene material is graphene or graphene oxide prepared by any one of a mechanical stripping method, a chemical vapor deposition method, a liquid phase stripping method and a redox method; the white graphene material is a white graphene nano material prepared by any one of a borax-ammonium chloride method, a chemical vapor deposition method, a borax-urea method, a high-frequency plasma method, a hydrothermal method and a precursor method; the phase change energy storage material is any one or more of paraffin, higher fatty acid, polyether glycol, alkane and polyethylene glycol; the silane coupling agent is any one or more of A-151, A-171, KH-560 and KH-570; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
Preferably, in the step 2, 20-33 parts of tourmaline material, 10-20 parts of nano copper oxide powder, 1-2 parts of chelating agent, 1-3 parts of dispersing agent and 3-6 parts of PE-g-MAH solubilizer are taken according to parts by weight, and the nano copper oxide, the chelating agent and the dispersing agent are added into absolute ethyl alcohol at normal temperature and subjected to ultrasonic chelation dispersion for 10-15min to prepare nano copper oxide suspension; drying the tourmaline material, adding tourmaline and solubilizer into the suspension of nano copper oxide, and continuing ultrasonic dispersion for 20-30min to obtain a mixed suspension of tourmaline and nano copper oxide; removing excessive anhydrous ethanol, drying at 60-85 deg.C, grinding with vertical spiral stirring ball mill to obtain powder with fineness of 1-50 μm to obtain nanometer modified tourmaline-copper oxide mixed powder.
Preferably, the nano-copper oxide powder is any one or more of nano-cuprous oxide, nano-cuprous sulfide, nano-cuprous cyanide and nano-cuprous bromide; the tourmaline material adopts one or more of magnesium tourmaline, iron magnesium tourmaline and iron calcium magnesium tourmaline which are characterized by boron; the chelating agent is one or more of ethylenediamine, ethylenediamine tetraacetic acid, urea, nitrilotriacetic acid and sodium hexametaphosphate; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
Preferably, in the step 3, 15-30 parts of nano-modified phase-change diene energy storage material mixed powder, 18-25 parts of nano-modified tourmaline and copper oxide mixed powder and 45-67 parts of polyester chips are taken according to parts by weight, the two kinds of powder are added into a medium-speed mixer, sealed and stirred for 15-30min to obtain nano-modified composite material powder, then the polyester chips are added into a double-screw extruder, and then the nano-modified composite material powder is added to obtain the nano-modified diene polyester composite material through extrusion.
Preferably, the temperatures of the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ at 210-.
Preferably, in the step 4, the nano modified diene polyester composite material is dried at a drying temperature of 60-80 ℃, the moisture regain of the dried composite material is controlled to be below 3%, then the polyester chip is used as a fiber skin layer, and the dried nano modified diene polyester composite material is used as a core layer, wherein the core-skin mass ratio is (10-20): (80-90), and preparing the composite fiber through a melt spinning process.
Preferably, the melt spinning is carried out by using a melt spinning machine to spin into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
The invention also provides the fiber prepared by the method, wherein the fiber is a polyester composite fiber with antiviral pathogen, far infrared protection and health care functions.
The fiber with the functions of resisting virus and germs, protecting far infrared rays and health care and the preparation method thereof provided by the invention have the following advantages:
the invention adopts graphene-white graphene, a phase change energy storage material, nano copper oxide, modified tourmaline and polyester to prepare a nano polyester composite material, and the nano polyester composite fiber with a skin-core structure and health care and protection functions is prepared by melt spinning.
The polyester fiber in the composite fiber has the characteristics of high strength, high modulus, stiffness, wrinkle resistance, high thermal stability, strong wear resistance and the like, and is a high-quality carrier for functional composite fibers, wherein the performance-price ratio is high. The diene material (graphene and white graphene) has the functions of antibiosis, far infrared, mite resistance, virus resistance, negative ion oxygenation, static resistance, ultraviolet resistance and the like. The nano copper oxide ions not only have the functions of radiation protection, electromagnetic wave shielding and electric conduction; but also has strong adsorption and killing functions on microorganisms, and plays a role in antibiosis and deodorization; in particular, the product has excellent antitoxic performance and strong inactivation effect on various viruses and germs. The phase-change energy storage material has the functions of absorbing and releasing energy, storing heat and storing cold, and can meet the health care function requirements of being warm in winter and cool in summer; the modified tourmaline has special physical and chemical properties such as piezoelectricity, pyroelectricity and the like, has strong surface activity and adsorbability, has super-strong far infrared and negative oxygen ion functions, and has the effects of enriching oxygen and purifying air in the environment. The invention solves the defects of few functions, weak and small functions, no durability, low application level, narrow application range and the like of the conventional composite polyester fiber; the functions and characteristics of the single nano material are fused, complemented and enhanced, so that the fiber has strong health care and protection functions of antibiosis, far infrared, antivirus, anion oxygenation, mite resistance, static electricity resistance, ultraviolet resistance, radiation resistance, warmness in winter and coolness in summer, energy storage and release and the like; and each health care and protection function is very stable and is released continuously for a long time, and the defect of reduced functionality along with the increase of washing times is avoided.
The composite fiber prepared by the invention has excellent functions of resisting virus and germs, far infrared, increasing oxygen by negative ions, resisting mites, resisting static electricity, resisting ultraviolet, resisting radiation and the like, wherein the bacteriostasis rate of escherichia coli, staphylococcus aureus and candida albicans reaches 99.9%, UPF is more than 100, and the inactivation rate of conventional germs such as H1N1 virus reaches more than 99%; meanwhile, the heat storage and cold accumulation function is achieved, and the wearing comfort is greatly improved.
The preparation method of the polyester composite fiber with the functions of resisting virus and germs, protecting far infrared rays and protecting health, which is created by the invention, enhances and improves the diversified combination functional characteristics and the practical application range of the white graphene material, the phase change energy storage material, the tourmaline material and the nano copper oxide material in the textile field. The method has the advantages of simple process, easy operation, low cost and high economic benefit, and is suitable for industrial production. The obtained composite fiber has strong practicability and is suitable for the industries of textile and clothing, medical care, military industry, home textile, architectural decoration, environmental protection, electronics and the like.
Detailed Description
The following further describes embodiments of the present invention.
The invention provides a preparation method of fiber with antiviral germ and far infrared protection health care function, which comprises the following steps: step 1, preparing nano-grade modified phase change diene energy storage material mixed powder; step 2, preparing nano-scale modified tourmaline and copper oxide mixed powder; step 3, uniformly mixing the nano-scale modified phase-change diene energy storage material mixed powder obtained in the step 1 and the nano-scale modified tourmaline and copper oxide mixed powder obtained in the step 2 to obtain nano-modified composite material powder, then mixing the nano-modified composite material powder with polyester slices, and extruding the mixture through a screw extruder to obtain a nano-modified diene polyester composite material; and 4, drying the nano modified diene polyester composite material obtained in the step 3, taking the polyester slices as fiber skins, taking the dried nano modified diene polyester composite material as a core layer, and preparing the polyester composite fiber through a melt spinning process.
In the step 1, 15-30 parts of graphene material, 15-30 parts of white graphene material, 20-35 parts of phase change energy storage material and 3-5 parts of dispersing agent are added into absolute ethyl alcohol according to the mass parts, and the dosage of the absolute ethyl alcohol is based on dissolving each solute material. Stirring and dispersing for 10-20min by using a centrifugal stirrer; and adding a silane coupling agent solution prepared by diluting with absolute ethyl alcohol, keeping the mass concentration of the silane coupling agent in the absolute ethyl alcohol mixed solution to be 3-10%, continuously centrifuging and stirring for 10-15min to obtain a modified phase-change diene energy storage material mixed solution, removing redundant absolute ethyl alcohol, drying in a vacuum oven at 60-85 ℃ for 1-2h, adding a vertical spiral stirring ball mill for grinding to obtain powder with the fineness of 1-50 mu m, and obtaining the nano-grade modified diene energy storage material mixed powder.
The graphene material is graphene or graphene oxide prepared by any one of a mechanical stripping method, a chemical vapor deposition method, a liquid phase stripping method and a redox method; the white graphene material is a white graphene nano material prepared by any one of a borax-ammonium chloride method, a chemical vapor deposition method, a borax-urea method, a high-frequency plasma method, a hydrothermal method and a precursor method; the phase change energy storage material is any one or more of paraffin, higher fatty acid, polyether glycol, alkane and polyethylene glycol; the silane coupling agent is any one or more of A-151, A-171, KH-560 and KH-570; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
In the step 2, 20-33 parts of tourmaline material, 10-20 parts of nano copper oxide powder, 1-2 parts of chelating agent, 1-3 parts of dispersing agent and 3-6 parts of PE-g-MAH (maleic anhydride grafted polyethylene) solubilizer are taken according to parts by weight. The same dispersant was used in step 1 and step 2. Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, wherein the dosage of the absolute ethyl alcohol is based on the requirement of dissolving various solute materials. Ultrasonic chelating and dispersing for 10-15min to prepare a nano copper oxide suspension; then the tourmaline material is dried, tourmaline and solubilizer are added into the suspension of nano copper oxide, and ultrasonic dispersion treatment is continued for 20-30min to prepare a mixed suspension of tourmaline and nano copper oxide; removing excessive anhydrous ethanol, drying at 60-85 deg.C, grinding with vertical spiral stirring ball mill to obtain powder with fineness of 1-50 μm to obtain nanometer modified tourmaline-copper oxide mixed powder.
The nano-copper oxide powder is any one or more of nano-cuprous oxide, nano-cuprous sulfide, nano-cuprous cyanide and nano-cuprous bromide; the tourmaline material adopts one or more of magnesium tourmaline, iron magnesium tourmaline and iron calcium magnesium tourmaline which are characterized by boron; the chelating agent is one or more of ethylenediamine, ethylenediamine tetraacetic acid, urea, nitrilotriacetic acid and sodium hexametaphosphate; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
In the step 3, according to the parts by mass, 15-30 parts of nano-scale modified phase-change diene energy storage material mixed powder, 18-25 parts of nano-scale modified tourmaline and copper oxide mixed powder and 45-67 parts of polyester chips are taken. Adding the two kinds of powder into a medium-speed mixer, sealing and stirring for 15-30min to obtain nano modified composite material powder, adding polyester slices into a double-screw extruder, adding the nano modified composite material powder, and extruding to obtain the nano modified diene polyester composite material.
The temperature from the first zone to the sixth zone of the double-screw extruder is respectively controlled to be 230 ℃ at 230 ℃, 240 ℃ at 230 ℃, 250 ℃ at 250 ℃, 260 ℃ at 250 ℃, 255 ℃ at 250 ℃ at 240 ℃.
In step 4, drying the nano modified diene polyester composite material at the drying temperature of 60-80 ℃, controlling the moisture regain of the dried composite material to be below 3%, then taking the polyester slices as fiber skins, and taking the dried nano modified diene polyester composite material as a core layer, wherein the skin-core mass ratio is (10-20): (80-90) and preparing the composite fiber through a melt spinning process.
The melt spinning adopts a melt spinning machine to spin into bundles, the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
The equipment and other process conditions employed in the present invention are known to those skilled in the art.
The invention also provides the fiber prepared by the method, and the fiber is a polyester composite fiber with antiviral pathogen, far infrared protection and health care functions.
The fiber with antiviral and far infrared protection health care functions and the preparation method thereof provided by the invention are further described with reference to the following embodiments.
Example 1
A preparation method of fiber with antiviral germ and far infrared protection and health care functions comprises the following steps.
Step 1:
A) weighing 15 parts of graphene, 15 parts of white graphene, 20 parts of a phase change energy storage material, 3 parts of a dispersing agent, a silane coupling agent and absolute ethyl alcohol according to the mass parts.
The graphene material is prepared by a mechanical stripping method.
The white graphene is a white graphene nano material prepared by adopting a borax-ammonium chloride method.
The phase change energy storage material is polyethylene glycol.
The dispersant is fatty acid polyglycol ester.
The silane coupling agent is A-151.
B) Adding graphene, white graphene, a phase change energy storage material and a dispersing agent into absolute ethyl alcohol, and stirring and dispersing for 10-20min by using a centrifugal stirrer; adding silane coupling agent solution diluted by absolute ethyl alcohol to make its mass concentration be 3-10%, continuously centrifugally stirring for 10-15 min. And obtaining the modified phase-change diene energy storage material mixed solution.
C) Removing redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to obtain powder with the fineness of 1-50 mu m, thereby obtaining the modified phase-change diene energy storage material mixed powder.
Step 2: the tourmaline material is 20 parts, the nano copper oxide powder is 10 parts, the chelating agent is 1 part, the dispersing agent is 1 part, and the PE-g-MAH solubilizer is 3 parts.
The tourmaline material is magnesium tourmaline which is characterized by boron.
The nano-copper oxide powder is nano-cuprous oxide.
The dispersant is fatty acid polyglycol ester.
The chelating agent is sodium hexametaphosphate.
A) Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelation and dispersion for 10-15 min; and preparing the nano copper oxide suspension.
B) Drying tourmaline materials, adding tourmaline and solubilizer into the suspension of nano copper oxide, and performing ultrasonic dispersion treatment for 20-30min to obtain mixed suspension of tourmaline and nano copper oxide.
C) Then removing redundant absolute ethyl alcohol, drying at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to powder with the fineness of 1-50 mu m to obtain the nano-scale modified tourmaline and copper oxide mixed powder.
And step 3: taking 15 parts by mass of the nano-scale modified phase-change diene energy storage material mixed powder obtained in the step 1, 18 parts by mass of the nano-scale modified tourmaline and copper oxide mixed powder obtained in the step 2 and 67 parts by mass of polyester chips.
A) Adding the two kinds of powder into a medium-speed mixer, and sealing and stirring for 15-30min to obtain the nano modified composite material powder.
B) And then adding the polyester chips into a double-screw extruder, and then adding the nano modified composite material powder, wherein the temperatures from the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ plus-pressure, 240 ℃ plus-pressure, 250 ℃ plus-pressure, 260 ℃ plus-pressure, 250 ℃ plus-pressure, 255 ℃ plus-pressure, 240 ℃ plus-pressure and 250 ℃ and extruding to obtain the nano modified diene polyester composite material.
And 4, step 4: drying the nano modified diene polyester composite material obtained in the step 3 at the drying temperature of 60-80 ℃, and controlling the moisture regain of the dried composite material to be below 3%; then, taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and mixing the polyester chip and the dried nano modified diene polyester composite material according to the skin-core mass ratio of 10: 90 through the melt spinning process, a polyester composite fiber with the functions of virus resistance, far infrared protection and health care is prepared. And the melt spinning machine is used for spinning into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
By the method, the polyester composite fiber with health care and protection functions based on graphene-white graphene is finally obtained, and the components of the polyester composite fiber are as follows according to the theoretical data analysis of the implementation scheme: 98-99% of polyester, 0.20-0.23% of graphene, 0.20-0.23% of white graphene, 0.15-0.18% of nano copper oxide, 0.26-0.3% of phase change energy storage material and 0.32-0.36% of tourmaline material.
Example 2
A preparation method of fiber with antiviral germ and far infrared protection and health care functions comprises the following steps.
Step 1:
A) weighing 23 parts of graphene, 23 parts of white graphene, 28 parts of a phase change energy storage material, 4 parts of a dispersing agent, a silane coupling agent and absolute ethyl alcohol according to parts by mass.
The graphene material is graphene oxide prepared by a chemical vapor deposition method.
The white graphene is a white graphene nano material prepared by a chemical vapor deposition method.
The phase change energy storage material is paraffin.
The dispersing agent is gelatin.
The silane coupling agent is A-171.
B) Adding graphene, white graphene, a phase change energy storage material and a dispersing agent into absolute ethyl alcohol, and stirring and dispersing for 10-20min by using a centrifugal stirrer; adding silane coupling agent solution diluted by absolute ethyl alcohol to make its mass concentration be 3-10%, continuously centrifugally stirring for 10-15 min. And obtaining the modified phase-change diene energy storage material mixed solution.
C) Removing redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to obtain powder with the fineness of 1-50 mu m, thereby obtaining the modified phase-change diene energy storage material mixed powder.
And 2, step: the tourmaline material 27 parts, the nano copper oxide powder 15 parts, the chelating agent 1.5 parts, the dispersing agent 2 parts and the PE-g-MAH solubilizer 5 parts by weight.
The nano copper oxide powder is nano cuprous sulfide.
The dispersing agent is gelatin.
The tourmaline material is iron magnesium tourmaline which is characterized by boron.
The chelating agent is ethylenediaminetetraacetic acid.
A) Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelation and dispersion for 10-15 min; and preparing the nano copper oxide suspension.
B) Drying tourmaline materials, adding tourmaline and solubilizer into the suspension of nanometer copper oxide, and continuing ultrasonic dispersion for 20-30min to obtain the mixed suspension of tourmaline and nanometer copper oxide.
C) Then removing redundant absolute ethyl alcohol, drying at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to powder with the fineness of 1-50 mu m to obtain the nano-scale modified tourmaline and copper oxide mixed powder.
And step 3: and (2) taking 23 parts by mass of the nano-grade modified phase-change diene energy storage material mixed powder obtained in the step (1), 22 parts by mass of the nano-grade modified tourmaline and copper oxide mixed powder obtained in the step (2) and 55 parts by mass of polyester chips.
A) Adding the two kinds of powder into a medium-speed mixer, and sealing and stirring for 15-30min to obtain the nano modified composite material powder.
B) And then adding the polyester chips into a double-screw extruder, and then adding the nano modified composite material powder, wherein the temperatures from the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ plus-pressure, 240 ℃ plus-pressure, 250 ℃ plus-pressure, 260 ℃ plus-pressure, 250 ℃ plus-pressure, 255 ℃ plus-pressure, 240 ℃ plus-pressure and 250 ℃ and extruding to obtain the nano modified diene polyester composite material.
And 4, step 4: drying the nano modified diene polyester composite material obtained in the step 3 at the drying temperature of 60-80 ℃, and controlling the moisture regain of the dried composite material to be below 3%; then, taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and preparing the polyester chip into a fiber core material according to the skin-core mass ratio of 15: 85 to prepare the polyester composite fiber with antiviral, far infrared protection and health care functions by a melt spinning process. And the melt spinning machine is used for spinning into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
By the method, the polyester composite fiber with health care and protection functions based on graphene-white graphene is finally obtained, and the components of the polyester composite fiber are as follows according to the theoretical data analysis of the implementation scheme: 96-97% of polyester, 0.72-0.80% of graphene, 0.72-0.80% of white graphene, 0.45-0.50% of nano copper oxide, 0.88-0.97% of phase change energy storage material and 0.81-0.90% of tourmaline material.
Example 3
A preparation method of fiber with antiviral germ and far infrared protection and health care functions comprises the following steps.
Step 1:
A) weighing 30 parts of graphene, 30 parts of white graphene, 35 parts of a phase change energy storage material, 5 parts of a dispersing agent, a silane coupling agent and absolute ethyl alcohol according to the mass parts.
The graphene material is prepared by a liquid phase stripping method.
The white graphene is a white graphene nano material prepared by adopting a borax-urea method.
The silane coupling agent is KH-560.
The phase change energy storage material is alkane or higher fatty acid.
The dispersant is sodium dodecyl benzene sulfonate.
B) Adding graphene, white graphene, a phase change energy storage material and a dispersing agent into absolute ethyl alcohol, and stirring and dispersing for 10-20min by using a centrifugal stirrer; adding silane coupling agent solution diluted by absolute ethyl alcohol to make its mass concentration be 3-10%, continuously centrifugally stirring for 10-15 min. And obtaining the modified phase-change diene energy storage material mixed solution.
C) Removing redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to obtain powder with the fineness of 1-50 mu m, thereby obtaining the modified phase-change diene energy storage material mixed powder.
Step 2: 33 parts of a tourmaline material, 20 parts of nano copper oxide powder, 2 parts of a chelating agent, 3 parts of a dispersing agent and 4 parts of a PE-g-MAH solubilizer.
The nano copper oxide powder is nano cuprous cyanide.
The dispersant is sodium dodecyl benzene sulfonate.
The tourmaline material is iron calcium magnesium tourmaline which is characterized by boron.
The chelating agent is urea.
A) Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelation and dispersion for 10-15 min; and preparing the nano copper oxide suspension.
B) Drying tourmaline materials, adding tourmaline and solubilizer into the suspension of nanometer copper oxide, and continuing ultrasonic dispersion for 20-30min to obtain the mixed suspension of tourmaline and nanometer copper oxide.
C) Then removing redundant absolute ethyl alcohol, drying at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to powder with the fineness of 1-50 mu m to obtain the nano-scale modified tourmaline and copper oxide mixed powder.
And step 3: and (2) taking 30 parts by mass of the nano-grade modified phase-change diene energy storage material mixed powder obtained in the step (1), 25 parts by mass of the nano-grade modified tourmaline and copper oxide mixed powder obtained in the step (2) and 45 parts by mass of polyester chips.
A) Adding the two kinds of powder into a medium-speed mixer, and sealing and stirring for 15-30min to obtain the nano modified composite material powder.
B) And then adding the polyester chips into a double-screw extruder, and then adding the nano modified composite material powder, wherein the temperatures from the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ plus-pressure, 240 ℃ plus-pressure, 250 ℃ plus-pressure, 260 ℃ plus-pressure, 250 ℃ plus-pressure, 255 ℃ plus-pressure, 240 ℃ plus-pressure and 250 ℃ and extruding to obtain the nano modified diene polyester composite material.
And 4, step 4: drying the nano modified diene polyester composite material obtained in the step 3 at the drying temperature of 60-80 ℃, and controlling the moisture regain of the dried composite material to be below 3%; then, taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and mixing the polyester chip and the dried nano modified diene polyester composite material according to the skin-core mass ratio of 20: 80 through a melt spinning process, a polyester composite fiber with antiviral, far infrared protection and health care functions is prepared. And the melt spinning machine is used for spinning into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
By the method, the polyester composite fiber with health care and protection functions based on graphene-white graphene is finally obtained, and the components of the polyester composite fiber are as follows according to the theoretical data analysis of the implementation scheme: 91-93% of polyester, 1.5-1.8% of graphene, 1.5-1.8% of white graphene, 0.83-1.0% of nano copper oxide, 1.7-2.1% of phase change energy storage material and 1.4-1.7% of tourmaline material.
Example 4
A preparation method of fiber with antiviral germ and far infrared protection and health care functions comprises the following steps.
Step 1:
A) weighing 15 parts of graphene, 15 parts of white graphene, 35 parts of phase change energy storage material, 5 parts of dispersing agent, silane coupling agent and absolute ethyl alcohol according to parts by mass.
The graphene material is graphene oxide prepared by a redox method.
The white graphene is a white graphene nano material prepared by a hydrothermal method.
The silane coupling agent is KH-570.
The phase change energy storage material is polyether polyol.
The dispersant is cellulose ether.
B) Adding graphene, white graphene, a phase change energy storage material and a dispersing agent into absolute ethyl alcohol, and stirring and dispersing for 10-20min by using a centrifugal stirrer; adding silane coupling agent solution diluted by absolute ethyl alcohol to make its mass concentration be 3-10%, continuously centrifugally stirring for 10-15 min. And obtaining the modified phase-change diene energy storage material mixed solution.
C) Removing redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to obtain powder with the fineness of 1-50 mu m, thereby obtaining the modified phase-change diene energy storage material mixed powder.
Step 2: 33 parts of a tourmaline material, 20 parts of nano copper oxide powder, 2 parts of a chelating agent, 3 parts of a dispersing agent and 6 parts of a PE-g-MAH solubilizer.
The nano copper oxide powder is nano cuprous bromide.
The dispersant is cellulose ether.
The tourmaline material is one of magnesium tourmaline, iron magnesium tourmaline, and iron calcium magnesium tourmaline characterized by boron.
The chelating agent is ethylenediamine.
A) Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelating dispersion for 10-15min to prepare nano copper oxide suspension.
B) Drying tourmaline materials, adding tourmaline and solubilizer into the suspension of nanometer copper oxide, and continuing ultrasonic dispersion for 20-30min to obtain the mixed suspension of tourmaline and nanometer copper oxide.
C) Then removing redundant absolute ethyl alcohol, drying at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to powder with the fineness of 1-50 mu m to obtain the nano-scale modified tourmaline and copper oxide mixed powder.
And step 3: taking 15 parts by mass of the nano-scale modified phase-change diene energy storage material mixed powder obtained in the step 1, 18 parts by mass of the nano-scale modified tourmaline and copper oxide mixed powder obtained in the step 2 and 67 parts by mass of polyester chips.
A) Adding the two kinds of powder into a medium-speed mixer, and sealing and stirring for 15-30min to obtain the nano modified composite material powder.
B) And then adding the polyester chips into a double-screw extruder, and then adding the nano modified composite material powder, wherein the temperatures from the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ plus-pressure, 240 ℃ plus-pressure, 250 ℃ plus-pressure, 260 ℃ plus-pressure, 250 ℃ plus-pressure, 255 ℃ plus-pressure, 240 ℃ plus-pressure and 250 ℃ and extruding to obtain the nano modified diene polyester composite material.
And 4, step 4: drying the nano modified diene polyester composite material obtained in the step 3 at the drying temperature of 60-80 ℃, and controlling the moisture regain of the dried composite material to be below 3%; then, taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and mixing the polyester chip and the dried nano modified diene polyester composite material according to the skin-core mass ratio of 10: 90 through the melt spinning process, a polyester composite fiber with the functions of virus resistance, far infrared protection and health care is prepared. And the melt spinning machine is used for spinning into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
By the method, the polyester composite fiber with health care and protection functions based on graphene-white graphene is finally obtained, and the components of the polyester composite fiber are as follows according to the theoretical data analysis of the implementation scheme: 97-98% of polyester, 0.20-0.23% of graphene, 0.20-0.23% of white graphene, 0.31-0.36% of nano copper oxide, 0.46-0.53% of phase change energy storage material and 0.52-0.60% of tourmaline material.
Example 5
A preparation method of fiber with antiviral germ and far infrared protection and health care functions comprises the following steps.
Step 1:
A) weighing 20 parts of graphene, 20 parts of white graphene, 25 parts of a phase change energy storage material, 3 parts of a dispersing agent, a silane coupling agent and absolute ethyl alcohol according to the mass parts.
The graphene material is graphene oxide prepared by a chemical vapor deposition method.
The white graphene is a white graphene nano material prepared by a precursor method.
The silane coupling agent is one or more of A-151, A-171, KH-560 and KH-570.
The dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
The phase change energy storage material is any one or more of polyethylene glycol, paraffin, alkane, higher fatty acid and polyether polyol.
B) Adding graphene, white graphene, a phase change energy storage material and a dispersing agent into absolute ethyl alcohol, and stirring and dispersing for 10-20min by using a centrifugal stirrer; adding silane coupling agent solution diluted with anhydrous alcohol to make its mass concentration be 3-10%, continuously centrifugally stirring for 10-15 min. Obtaining the modified phase-change diene energy storage material mixed solution.
C) Removing redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to obtain powder with the fineness of 1-50 mu m, thereby obtaining the modified phase-change diene energy storage material mixed powder.
And 2, step: 30 parts of tourmaline material, 16 parts of nano copper oxide powder, 2 parts of chelating agent, 2 parts of dispersing agent and 3 parts of PE-g-MAH solubilizer.
The nano-copper oxide powder is nano-cuprous oxide.
The dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
The tourmaline material is many of magnesium tourmaline, iron magnesium tourmaline, and iron calcium magnesium tourmaline characterized by boron.
The chelating agent is one of urea and nitrilotriacetic acid.
A) Adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelation and dispersion for 10-15 min; and preparing the suspension of the nano copper oxide.
B) Drying tourmaline materials, adding tourmaline and solubilizer into the suspension of nanometer copper oxide, and continuing ultrasonic dispersion for 20-30min to obtain the mixed suspension of tourmaline and nanometer copper oxide.
C) Then removing redundant absolute ethyl alcohol, drying at 60-85 ℃, adding into a vertical spiral stirring ball mill, and grinding to powder with the fineness of 1-50 mu m to obtain the nano-scale modified tourmaline and copper oxide mixed powder.
And step 3: and (2) taking 30 parts by mass of the mixed powder of the nano-modified phase-change diene energy storage material obtained in the step (1), 25 parts by mass of the mixed powder of the nano-modified tourmaline and copper oxide obtained in the step (2) and 45 parts by mass of polyester chips.
A) Adding the two kinds of powder into a medium-speed mixer, and sealing and stirring for 15-30min to obtain the nano modified composite material powder.
B) And then adding the polyester chips into a double-screw extruder, and then adding the nano modified composite material powder, wherein the temperatures from the first zone to the sixth zone of the double-screw extruder are respectively controlled to be 230 ℃ plus-pressure, 240 ℃ plus-pressure, 250 ℃ plus-pressure, 260 ℃ plus-pressure, 250 ℃ plus-pressure, 255 ℃ plus-pressure, 240 ℃ plus-pressure and 250 ℃ and extruding to obtain the nano modified diene polyester composite material.
And 4, step 4: drying the nano modified diene polyester composite material obtained in the step 3 at the drying temperature of 60-80 ℃, and controlling the moisture regain of the dried composite material to be below 3%; then, taking the polyester chip as a fiber skin layer, taking the dried nano modified diene polyester composite material as a core layer, and mixing the polyester chip and the dried nano modified diene polyester composite material according to the skin-core mass ratio of 15: 85 to prepare the polyester composite fiber with antiviral, far infrared protection and health care functions by a melt spinning process. A melt spinning machine for spinning into bundles, wherein the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
By the method, the polyester composite fiber with health care and protection functions based on graphene-white graphene is finally obtained, and the components of the polyester composite fiber are as follows according to the theoretical data analysis of the implementation scheme: 95-96% of polyester, 0.81-0.90% of graphene, 0.81-0.90% of white graphene, 0.54-0.60% of nano copper oxide, 1.0-1.1% of phase change energy storage material and 1.0-1.1% of tourmaline material.
The composite fibers prepared by the embodiments of the present invention were tested, and the results obtained were: the composite fiber has the bacteriostasis rate of 99.9 percent of escherichia coli, staphylococcus aureus and candida albicans, the UPF is more than 100, the inactivation rate of conventional germs such as H1N1 virus reaches more than 99 percent, and the composite fiber has multiple functions of infrared, anion oxygenation, mite resistance, static electricity resistance, ultraviolet resistance, radiation resistance, temperature regulation and the like.
The invention provides a preparation method of polyester composite fiber with virus and bacteria resistance, far infrared protection and health care functions, and particularly relates to a method for preparing graphene-white graphene, a phase change energy storage material, nano copper oxide, modified tourmaline and polyester into a nano polyester composite material, and preparing a sheath-core structure and the polyester composite fiber with the health care and protection functions through melt spinning. The nanometer material with protection and health care functions is modified and polymerized, so that the functions and characteristics of the raw materials are fully fused, complemented and improved, and the polyester composite fiber is promoted to have strong health care and protection functions of resisting virus and germs, far infrared rays, increasing oxygen by negative ions, resisting mites, resisting static electricity, resisting ultraviolet rays, resisting radiation, warming in winter and cooling in summer, storing heat and cold and the like; and various health care and protection functions are very stable and released continuously for a long time, and the defect of weakened functionality along with the increase of washing times is overcome. Can completely meet the requirements of people on the protection of virus and germs and the self health care function.
The invention provides a fiber with functions of resisting virus and germs, protecting and protecting health by far infrared and a preparation method thereof. Then carrying out chelating dispersion and stirring treatment on the nano-copper oxide and the tourmaline material in absolute ethyl alcohol solution of a chelating agent, a solubilizer and a dispersant respectively to obtain nano-modified tourmaline-copper oxide mixed powder. Then mixing the prepared two mixed powders with polyester chips, and preparing the nano modified composite polyester material by adopting a double-screw extruder. Finally, the nano modified composite polyester material and the polyester chips are mixed, and a melt spinning method is adopted to prepare the polyester composite fiber with the functions of resisting virus and germs, protecting far infrared rays and protecting health.
The invention can solve the problems of the prior art and achieve the corresponding technical effects, and specifically comprises the following steps: firstly, a method for preparing nano-grade modified phase-change diene energy storage material mixed powder by using nano graphene, white graphene and a phase-change energy storage material can be solved; a method for preparing nano-scale modified tourmaline-copper oxide mixed powder by using tourmaline materials and nano-copper oxide; preparing functional polyester composite master batches from two kinds of functional powder and polyester chips through a spiral extrusion process; a polyester composite fiber with antiviral, far infrared protection and health care functions is prepared from a functional polyester composite material and a polyester chip by a melt spinning method. Secondly, the defects of few functions, weak and weak functions, non-durability, low application level, narrow application range and the like of the conventional polyester fiber are overcome. Thirdly, the prepared polyester composite fiber with the functions of resisting virus and germs, protecting far infrared rays and protecting health is fused, complemented and reinforced with the functions and characteristics of a single nano material, so that the fiber has strong health-care and protecting functions of resisting bacteria, far infrared rays, viruses, anions, oxygen, mites, static electricity, ultraviolet rays, radiation, warmness in winter and coolness in summer, energy storage and release and the like; and each health care and protection function is very stable and is released continuously for a long time, and the condition of functional weakening cannot occur along with the increase of the washing times. And fourthly, preparing nano-scale modified phase change diene energy storage material mixed powder, nano-scale modified tourmaline and copper oxide mixed powder, functional polyester composite master batches and polyester composite fibers with antiviral, far infrared protection and health care functions, and the nano-scale modified phase change diene energy storage material mixed powder, the nano-scale modified tourmaline and copper oxide mixed powder, the functional polyester composite master batches and the polyester composite fibers can be independently or comprehensively applied to the industries of textile and clothing, medical care, military industry, home textile, architectural decoration, environmental protection, electronics and the like.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A method for preparing fiber with antiviral germs and far infrared protection health care functions is characterized by comprising the following steps:
step 1, preparing mixed powder of a nano-grade modified phase-change diene energy storage material;
step 2, preparing nano-scale modified tourmaline and copper oxide mixed powder;
step 3, uniformly mixing the nano-modified phase-change diene energy storage material mixed powder obtained in the step 1 and the nano-modified tourmaline and copper oxide mixed powder obtained in the step 2 to obtain nano-modified composite material powder, mixing the nano-modified composite material powder with polyester slices, and extruding the mixture through a screw extruder to obtain a nano-modified diene polyester composite material;
and 4, drying the nano modified diene polyester composite material obtained in the step 3, taking the polyester slices as fiber skins, taking the dried nano modified diene polyester composite material as a core layer, and preparing the polyester composite fiber through a melt spinning process.
2. The method for preparing fiber with antiviral germs and far infrared protection health care function as claimed in claim 1, wherein in the step 1, 15-30 parts of graphene material, 15-30 parts of white graphene material, 20-35 parts of phase change energy storage material and 3-5 parts of dispersant are added into absolute ethyl alcohol by mass parts, and stirred and dispersed for 10-20min by a centrifugal stirrer; and adding a silane coupling agent solution prepared by diluting with absolute ethyl alcohol, keeping the mass concentration of the silane coupling agent in the absolute ethyl alcohol mixed solution at 3-10%, continuously centrifuging and stirring for 10-15min to obtain a modified phase-change diene energy storage material mixed solution, removing the redundant absolute ethyl alcohol, drying for 1-2h in a vacuum oven at 60-85 ℃, adding a vertical spiral stirring ball mill for grinding to obtain powder with the fineness of 1-50 mu m, and obtaining the nano-scale modified phase-change diene energy storage material mixed powder.
3. The method for preparing fiber with antiviral germs and far infrared protection health care function as claimed in claim 2, wherein the graphene material is graphene or graphene oxide prepared by any one of mechanical stripping method, chemical vapor deposition method, liquid phase stripping method and oxidation-reduction method; the white graphene material is a white graphene nano material prepared by any one of a borax-ammonium chloride method, a chemical vapor deposition method, a borax-urea method, a high-frequency plasma method, a hydrothermal method and a precursor method; the phase change energy storage material is any one or more of paraffin, higher fatty acid, polyether glycol, alkane and polyethylene glycol; the silane coupling agent is any one or more of A-151, A-171, KH-560 and KH-570; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
4. The method for preparing fiber with antiviral germs and far infrared protection health care function as claimed in claim 1, characterized in that in the step 2, 20-33 parts of tourmaline material, 10-20 parts of nano copper oxide powder, 1-2 parts of chelating agent, 1-3 parts of dispersing agent and 3-6 parts of PE-g-MAH solubilizer are taken according to the mass parts; adding the nano copper oxide, the chelating agent and the dispersing agent into absolute ethyl alcohol at normal temperature, and carrying out ultrasonic chelation dispersion for 10-15min to prepare a nano copper oxide suspension; then the tourmaline material is dried, tourmaline and solubilizer are added into the suspension of nano copper oxide, and ultrasonic dispersion treatment is continued for 20-30min to prepare a mixed suspension of tourmaline and nano copper oxide; removing excessive anhydrous ethanol, drying at 60-85 deg.C, grinding with vertical spiral stirring ball mill to obtain powder with fineness of 1-50 μm to obtain nanometer modified tourmaline-copper oxide mixed powder.
5. The method for preparing fiber with antiviral germ and far infrared protection health care function as claimed in claim 4, wherein the nano copper oxide powder is any one or more of nano cuprous oxide, nano cuprous sulfide, nano cuprous cyanide and nano cuprous bromide; the tourmaline material adopts any one or more of magnesium tourmaline, iron magnesium tourmaline and iron calcium magnesium tourmaline which are characterized by boron; the chelating agent is one or more of ethylenediamine, ethylenediamine tetraacetic acid, urea, nitrilotriacetic acid and sodium hexametaphosphate; the dispersant is any one or more of sodium dodecyl benzene sulfonate, gelatin, cellulose ether, polyacrylamide and fatty acid polyglycol ester.
6. The method for preparing fiber with antiviral germ and far infrared protection health care function as claimed in claim 1, wherein in step 3, according to the mass portion, 15-30 parts of nano-scale modified phase change diene energy storage material mixed powder, 18-25 parts of nano-scale modified tourmaline copper oxide mixed powder and 45-67 parts of polyester slices are taken; adding the two kinds of powder into a medium-speed mixer, sealing and stirring for 15-30min to obtain nano modified composite material powder, adding polyester chips into a double-screw extruder, adding the obtained nano modified composite material powder, and extruding to obtain the nano modified diene polyester composite material.
7. The method for preparing fiber with functions of anti-virus, anti-pathogen and far infrared protection and health care as claimed in claim 6, wherein the temperatures from the first zone to the sixth zone of the twin-screw extruder are respectively controlled at 230 ℃, 240 ℃, 250 ℃, 255 ℃ and 250 ℃.
8. The method for preparing fiber with antiviral bacteria and far infrared protection health care function as claimed in claim 1, wherein in the step 4, the nano modified diene polyester composite material is dried at a drying temperature of 60-80 ℃, the moisture regain of the dried composite material is controlled to be below 3%, and then the polyester chips are used as fiber skin layers, the dried nano modified diene polyester composite material is used as a core layer, and the fiber skin-core mass ratio is (10-20): (80-90), and preparing the composite fiber through a melt spinning process.
9. The method for preparing fiber with antiviral bacteria and far infrared protection health care function as claimed in claim 8, wherein the melt spinning is performed by using a melt spinning machine to form bundles, the spinning temperature is 260-290 ℃, and the spinning speed is 200-1000 m/min.
10. A fiber prepared by the method of any one of claims 1 to 9, wherein the fiber is a polyester composite fiber having antiviral, far infrared protective and health care functions.
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| CN115613161A (en) * | 2022-10-28 | 2023-01-17 | 中国科学院福建物质结构研究所 | Sheath-core composite fiber and preparation method and application thereof |
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