CN111962177A - Antibacterial polyester fiber and preparation method and application thereof - Google Patents
Antibacterial polyester fiber and preparation method and application thereof Download PDFInfo
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 92
- 229920000728 polyester Polymers 0.000 title claims abstract description 41
- 239000000835 fiber Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 42
- -1 polyoxyethylene Polymers 0.000 claims abstract description 29
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 24
- 239000002023 wood Substances 0.000 claims abstract description 21
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 16
- 244000269722 Thea sinensis Species 0.000 claims abstract description 12
- 240000003085 Quassia amara Species 0.000 claims abstract description 10
- 235000009694 Quassia amara Nutrition 0.000 claims abstract description 10
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229940013788 quassia Drugs 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000002074 melt spinning Methods 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000005469 granulation Methods 0.000 claims abstract description 4
- 230000003179 granulation Effects 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 24
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 18
- 235000005074 zinc chloride Nutrition 0.000 claims description 12
- 239000011592 zinc chloride Substances 0.000 claims description 12
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 239000003610 charcoal Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000002390 rotary evaporation Methods 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 19
- 239000005020 polyethylene terephthalate Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 11
- 235000013616 tea Nutrition 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 229920004933 Terylene® Polymers 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000006750 UV protection Effects 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 150000008442 polyphenolic compounds Chemical class 0.000 description 2
- 235000013824 polyphenols Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 235000011984 Simarouba amara Nutrition 0.000 description 1
- 235000009689 Simarouba glauca Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 235000005487 catechin Nutrition 0.000 description 1
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 description 1
- 229950001002 cianidanol Drugs 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229930003935 flavonoid Natural products 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000009569 green tea Nutrition 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 150000003384 small molecules Chemical group 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- 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
- D01F6/92—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 polyesters
-
- 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
-
- 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
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The application specifically discloses an antibacterial polyester fiber and a preparation method and application thereof. The antibacterial polyester fiber comprises the following raw materials in parts by weight: 80-90 parts of PET slices, 4-12 parts of modified coffee carbon powder, 3-8 parts of auxiliary antibacterial agent, 1-5 parts of nano titanium dioxide, 6-12 parts of mixture of wood wax oil and polyoxyethylene and 0.5-1.5 parts of dodecyl betaine, wherein the auxiliary antibacterial agent is extract of tea and quassia, and the coffee carbon powder is prepared by modifying nano silver particles; the preparation method comprises the steps of mixing modified coffee carbon powder, an auxiliary antibacterial agent, a mixture of nano titanium dioxide, wood wax oil and polyoxyethylene and dodecyl betaine to obtain a mixture, and then mixing PET slices and the mixture to obtain a master batch; and performing melt extrusion and granulation on the obtained master batch to obtain an antibacterial polyester master batch, and performing melt spinning on the antibacterial polyester master batch to obtain the antibacterial polyester fiber. The polyester fiber has good antibacterial property and antibacterial lasting effect.
Description
Technical Field
The application relates to the technical field of garment materials, in particular to an antibacterial polyester fiber and a preparation method and application thereof.
Background
The polyester fiber is an important variety in synthetic fiber and is fiber prepared by spinning PET polyester; the fabric woven by the polyester fiber filaments has the excellent performances of good strength, good elasticity, difficult deformation, corrosion resistance, insulation, smoothness, stiffness and the like, and is popular among people. Dacron has a wide range of applications and is used in a large number of articles of clothing and industry. In order to meet the requirements of people on textile functionalization and the requirements of the world textile industry on terylene, modified terylene is continuously researched in the industry, and the development of the modified terylene is enhanced and promoted, so that various functional modified terylene is continuously developed in the market.
The Chinese patent application with the prior publication number of CN108203878A discloses a padding method antibacterial polyester fabric and a preparation method thereof, wherein the preparation method mainly comprises three steps of padding, dewatering and drying, and the padding step comprises the following steps: dissolving an antibacterial finishing agent in water to prepare an antibacterial finishing liquid, and controlling the mass concentration of the antibacterial finishing agent to be 15-50 g/L; and then, putting the polyester fabric into the obtained antibacterial finishing liquid for padding operation, and controlling the padding allowance rate to be 70-80% to obtain the antibacterial fabric.
In view of the above-mentioned related arts, the inventors believe that the antibacterial finishing agent is loaded on the surface of the fabric by padding, the binding fastness of the antibacterial agent and the fabric is poor, and the prepared antibacterial fabric basically loses antibacterial ability after being washed once or more times.
Disclosure of Invention
In order to improve the durability of the antibacterial performance of the fabric, the application provides the antibacterial polyester fiber and a preparation method and application thereof.
In a first aspect, the present application provides an antibacterial polyester fiber, which adopts the following technical scheme:
the antibacterial polyester fiber comprises the following raw materials in parts by weight: 80-90 parts of PET slices, 4-12 parts of modified coffee carbon powder, 3-8 parts of auxiliary antibacterial agent, 1-5 parts of nano titanium dioxide, 6-12 parts of mixture of wood wax oil and polyoxyethylene and 0.5-1.5 parts of dodecyl betaine, wherein the auxiliary antibacterial agent is extract of tea and quassia, and the coffee carbon powder is prepared by modifying nano silver particles.
Through adopting above-mentioned technical scheme, coffee charcoal is calcined for the coffee sediment and obtains, for having porous structure, has fine adsorption effect, include the adsorption effect to moisture, can restrain the reproduction of bacterium to a certain extent behind the moisture on coffee charcoal adsorption dacron surface, nano-silver has the particle size minimum, characteristics that the surface area is big, make nano-silver have extremely strong bactericidal activity and permeability, coffee charcoal has better bactericidal effect after the nano-silver is modified, and nano-silver regards the coffee charcoal of porous hole as the carrier, thereby realize slowly releasing silver ion, reach the bactericidal efficiency height, antibiotic lasting purpose.
On the other hand, the nano titanium dioxide can scatter or reflect light, so that silver ions in coffee carbon holes can be partially irradiated by the light scattered by the titanium dioxide, and the sterilization effect of the nano silver is promoted; furthermore, the wood wax oil and the polyoxyethylene are used as dispersing agents to promote the processing uniformity of all materials, and the tea leaves and the quassia contain more natural antibacterial substances, so that the antibacterial effect of the materials can be further improved, and meanwhile, the tea leaves and the quassia also have the antioxidant effect of tea polyphenol and the like, so that the antioxidant performance of the materials can be improved, and the stability of the wood wax oil and the polyoxyethylene in the processing engineering can also be improved.
Preferably, the components comprise 84-88 parts of PET slices, 8-10 parts of coffee carbon powder, 4-6 parts of auxiliary antibacterial agent, 2-4 parts of nano titanium dioxide, 8-10 parts of mixture of wood wax oil and polyoxyethylene and 0.5-1.5 parts of dodecyl betaine.
By adopting the technical scheme, the use amount of the components is further optimized, and the antibacterial property of the prepared material is improved.
Preferably, the modified coffee carbon powder is prepared by the following steps: (1) weighing 0.5 part of zinc chloride and dissolving in 100 parts of water to obtain a zinc chloride solution, adding 40 parts of dried coffee grounds into the zinc chloride solution, soaking for 1h, filtering, taking out, drying for 2h at 100 ℃, then heating to 900-1000 ℃, calcining for 1-2h, and sieving with a 1000-mesh sieve to obtain coffee carbon powder; (2) weighing 8 parts by weight of silver nitrate, dissolving the silver nitrate in 100 parts by weight of water to obtain a silver nitrate solution, adding the coffee carbon powder obtained in the step (1) into the silver nitrate solution, soaking for 2 hours, filtering, taking out, and putting the filtered coffee carbon powder into 600 ℃ for heat preservation for 2 hours to obtain the modified coffee carbon powder.
Through adopting above-mentioned technical scheme, zinc chloride not only can reduce the temperature when calcining the coffee grounds, makes it can the carbomorphism under the temperature that reduces, can also promote the coffee grounds to calcine and produce more holes in the process, and behind the coffee carbon adsorption silver nitrate, silver nitrate thermal decomposition forms the nano silver granule under the high temperature effect for adsorb in the hole of coffee carbon has a large amount of nano silver, and nano silver can slowly release and disinfect, makes the bacterinertness have better persistence.
Preferably, the auxiliary antibacterial agent is prepared by the following steps: taking 10 parts of tea and 10 parts of quassia, grinding into powder, adding the obtained powder into 100 parts of ethanol solution, stirring for 3 hours at the temperature of 60 ℃, filtering, taking filtrate, and performing rotary steaming at the temperature of 50 ℃ to obtain the auxiliary antibacterial agent.
By adopting the technical scheme, the tea and the quassia contain natural antibacterial ingredients, so that the antibacterial effect can be further improved, and the coffee carbon can adsorb the antibacterial ingredients, so that the antibacterial ingredients can be slowly released, and the durability of the antibacterial property is further improved.
Preferably, the polyoxyethylene has an average molecular weight of 300.
By adopting the technical scheme, the average molecular weight of the polyoxyethylene is 300, the polyoxyethylene is in a liquid state, the polyoxyethylene can play a good role of a dispersing agent, the uniformity of the dispersion of the components in a system is promoted, and the polyoxyethylene is provided with more hydroxyl groups, so that the hydrophilicity of the terylene can be improved, and the comfort of the terylene fabric is improved.
Preferably, the average particle size of the nano titanium dioxide is 10-20 nm.
By adopting the technical scheme, the particle size of the nano titanium dioxide is smaller, part of the nano titanium dioxide can enter the holes of the coffee carbon, and part of the nano titanium dioxide is adsorbed on the surface of the coffee carbon, so that the possibility of agglomeration among coffee carbon powder is reduced to a certain extent, and the synergistic antibacterial effect of the titanium dioxide and the silver is improved.
Preferably, the weight ratio of the wood wax oil to the polyoxyethylene is 1: 1.
By adopting the technical scheme, the weight ratio of the wood wax oil to the polyoxyethylene is 1:1, and the wood wax oil and the polyoxyethylene jointly play a role in dispersing, so that the uniformity of material distribution is improved.
In a second aspect, the application provides a preparation method of an antibacterial polyester fiber, which adopts the following technical scheme:
a preparation method of antibacterial polyester fiber comprises the following steps:
weighing modified coffee carbon powder, an auxiliary antibacterial agent, a mixture of nano titanium dioxide, wood wax oil and polyoxyethylene and dodecyl betaine according to a ratio, mixing to obtain a mixture, and then mixing PET slices and the mixture to obtain a master batch;
and secondly, performing melt extrusion and granulation on the obtained master batch to obtain an antibacterial polyester master batch, and spinning the obtained antibacterial polyester master batch by adopting a melt spinning method to obtain the antibacterial polyester fiber.
By adopting the technical scheme, the preparation process is simple, large-scale production can be realized, and the antibacterial property of the prepared antibacterial polyester fiber is more durable.
In a third aspect, the present application provides an antibacterial fabric, which adopts the following technical scheme:
the antibacterial fabric is woven by the prepared antibacterial polyester fibers.
By adopting the technical scheme, the obtained antibacterial fabric has good antibacterial property and a lasting antibacterial effect, and can be used in the clothing application fields of school uniforms, sports clothes and the like.
In summary, the present application has the following beneficial effects:
1. due to the adsorption effect of the coffee carbon powder, nano silver and an auxiliary antibacterial agent can be loaded, and the filler can be distributed more uniformly in the system under the action of the mixture of the wood wax oil and the polyoxyethylene and the dodecyl betaine.
2. The coffee carbon is calcined after adsorbing the zinc chloride, has more pores and can adsorb more nano silver particles.
3. The nano titanium dioxide not only can endow the material with certain ultraviolet resistance, but also can improve the antibacterial effect of the nano silver.
Detailed Description
The present application will be described in further detail with reference to examples.
The products used in the application are all the products sold in the market, wherein the PET slices are purchased from Yingcang plastification company, Yu Yao, City heat loss district Chenfeng Chinese medicinal material planting professional cooperation company, and the bitter wood is green tea and purchased from Jingdehuachuan rich agriculture development company, which are all the products sold in the market.
Preparation example 1: preparation of modified coffee carbon
(1) Weighing 0.5 part of zinc chloride and dissolving in 100 parts of water to obtain a zinc chloride solution, taking 40 parts of coffee grounds, cleaning with distilled water, drying, adding the dried coffee grounds into the zinc chloride solution, uniformly stirring, soaking the coffee grounds in the zinc chloride solution for 1 hour, filtering, taking filter residues, drying the obtained filter residues in a sintering furnace at 100 ℃ for 2 hours, heating to 900 ℃ for 1000 ℃ for calcining for 1-2 hours, ball-grinding the calcined coffee grounds into powder, and sieving with a 1000-mesh sieve to obtain coffee carbon powder;
(2) dissolving 8 parts by weight of silver nitrate in 100 parts by weight of water to obtain a silver nitrate solution, adding the coffee carbon powder obtained in the step (1) into the silver nitrate solution, soaking for 2 hours, continuously stirring, filtering, taking out, putting the filtered coffee carbon powder into a high-temperature oven, and keeping the temperature at 600 ℃ for 2 hours to obtain the modified coffee carbon powder.
Preparation example 2: preparation of auxiliary antibacterial agent
Taking 10 parts of tea and 10 parts of quassia, grinding into powder, adding the obtained powder into 100 parts of ethanol solution, stirring for 3 hours at 60 ℃, filtering, taking filtrate, performing rotary evaporation at 50 ℃, volatilizing the ethanol solvent to obtain the auxiliary antibacterial agent. The obtained auxiliary antibacterial agent mainly contains tea polyphenols, catechin, flavonoids, antibacterial alkaloids, etc.
Example 1
Weighing 4 parts of modified coffee carbon powder, 3 parts of auxiliary antibacterial agent, 1 part of nano titanium dioxide, 10-20nm of average particle size of the nano titanium dioxide and 6 parts of mixture of wood wax oil and polyoxyethylene, wherein the weight ratio of the wood wax oil to the polyoxyethylene is 1:1, and the average molecular weight of the polyoxyethylene is 300, uniformly mixing the materials by a mixer to obtain a mixed material, weighing 80 parts of PET slices, adding the PET slices into the mixed material, and continuously mixing and stirring to obtain a master batch.
And secondly, performing melt extrusion and granulation on the obtained master batch through a double-screw extruder at the temperature of 210 plus 265 ℃ to obtain the antibacterial polyester master batch, wherein the length-diameter ratio of a screw is 40: 1, and spinning the obtained antibacterial polyester master batch by adopting a melt spinning method, wherein the melt spinning temperature is 280 plus 285 ℃, the side-blown cooling air temperature is 25 ℃, and the side-blown air speed is 0.2m/s to obtain the antibacterial polyester fiber.
The preparation of the starting materials and the process for examples 2 to 5 and example 1 are the same as those for example 1, except that the starting materials are used in different amounts, and the amounts of the starting materials for examples 1 to 5 are shown in Table 1:
table 1 examples 1-5 raw material usage scale (in parts by weight)
The antibacterial polyester fiber prepared in the embodiment 2 is woven to obtain the antibacterial fabric, and the antibacterial fabric can be applied to the field of clothes such as school uniforms, sportswear and the like.
Comparative example 1
The difference between this comparative example and example 1 is that the coffee carbon powder was not modified with nano silver, and the other components and process steps were the same as in example 1.
Comparative example 2
This comparative example differs from example 1 in that no auxiliary antimicrobial is added and the other components and process steps are the same as in example 1.
Comparative example 3
The comparative example differs from example 1 in that no nano-titania is added and the other components and process steps are the same as in example 1.
Comparative example 4
The comparative example differs from example 1 in that no wood wax oil and no polyethylene oxide are added, and the other components and process steps are the same as in example 1.
Detection method/test method
The antibacterial polyester fibers obtained in examples 1 to 5 and comparative examples 1 to 4 were woven into samples having the same density, and then the following performance tests were performed on the samples:
and (3) antibacterial property: the fiber antibacterial performance test is carried out according to GB/T20944 evaluation of textile antibacterial performance, staphylococcus aureus is used as a strain, 5 groups are tested, and the average value is taken:
and (3) antibacterial durability: washing with FZ/T73023-2006 washing test method for antibacterial fabric sample appendix C antibacterial knitwear, washing for 50 times, testing antibacterial performance, taking staphylococcus aureus as a strain, testing 5 groups and taking an average value:
and (3) testing ultraviolet resistance: referring to the standard of ultraviolet resistance of GB/T18830-2002 textiles, a V-1000F type fabric ultraviolet projection tester is used for testing a sample, the UPF value of the sample is tested, the larger the value is, the better the ultraviolet resistance of the sample is, 3 groups are tested, and the average value is taken:
the results of the performance tests of examples 1-5 and comparative examples 1-4 are shown in Table 2:
TABLE 2 Performance test tables for examples 1 to 5 and comparative examples 1 to 4
| Testing | Antibacterial ratio/%) | Antibacterial after washing for 50 daysRate/%) | UPF value |
| Example 1 | 99.13 | 98.61 | 66 |
| Example 2 | 99.26 | 98.73 | 69 |
| Example 3 | 99.31 | 98.77 | 75 |
| Example 4 | 99.14 | 98.59 | 83 |
| Example 5 | 99.42 | 99.01 | 73 |
| Comparative example 1 | 58.13 | 50.32 | 65 |
| Comparative example 2 | 98.01 | 96.11 | 65 |
| Comparative example 3 | 99.01 | 96.76 | 33 |
| Comparative example 4 | 91.13 | 89.32 | 64 |
Referring to table 2, it can be seen from comparison between example 1 and comparative example 1 that the coffee carbon has a certain antibacterial property without being modified by nano silver, but the antibacterial ability is smaller, and the antibacterial property after washing is reduced more, while the coffee carbon fiber modified by silver has not only good antibacterial property but also good durability.
In comparison with example 1 and comparative example 2, it can be seen that the antibacterial performance is slightly reduced and the reduction range of the durability is larger without adding the auxiliary antibacterial agent, mainly because the antibacterial component in the auxiliary antibacterial agent is small molecules, the migration speed is higher, and the auxiliary antibacterial agent is easier to wash away in the washing process.
It can be seen from the comparison between example 1 and comparative example 3 that, without adding nano titanium dioxide, the antibacterial property is decreased by a larger amount than that with adding nano titanium dioxide, and this is mainly that nano titanium dioxide has an effect of promoting the bactericidal performance of silver, silver on the surface can be peeled off from the surface, and silver can activate oxygen in air or moisture adsorbed on the surface of the material under the action of light, so as to generate hydroxyl radicals and active oxygen ions, which have strong redox ability to kill bacteria, and titanium dioxide can scatter and reflect light, so that silver inside the coffee carbon can be more irradiated, and the bactericidal effect of silver is promoted.
Referring to the comparison between example 1 and comparative example 4, it can be seen that the antibacterial property is lower when no wood wax oil and polyoxyethylene are added, the wood wax oil and polyoxyethylene are used as dispersing agents to promote the uniformity of the distribution of the coffee carbon in the system, so that the antibacterial property of the material is more uniform, and when no wood wax oil and polyoxyethylene are added, the antibacterial property of the material is not uniform, and the obtained average value is lower.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The antibacterial polyester fiber is characterized by comprising the following raw materials in parts by weight: 80-90 parts of PET slices, 4-12 parts of modified coffee carbon powder, 3-8 parts of auxiliary antibacterial agent, 0.2-1 part of nano titanium dioxide, 6-12 parts of mixture of wood wax oil and polyoxyethylene and 0.5-1.5 parts of dodecyl betaine, wherein the auxiliary antibacterial agent is extract of tea and quassia, and the coffee carbon powder is prepared by modifying nano silver particles.
2. The antibacterial polyester fiber according to claim 1, wherein the components comprise 84-88 parts of PET slices, 8-10 parts of coffee charcoal powder, 4-6 parts of auxiliary antibacterial agent, 0.4-0.8 part of nano titanium dioxide, 8-10 parts of mixture of wood wax oil and polyoxyethylene, and 0.5-1.5 parts of dodecyl betaine.
3. The antibacterial polyester fiber according to claim 1, wherein the modified coffee charcoal powder is prepared by the following steps: (1) weighing 0.5 part of zinc chloride and dissolving in 100 parts of water to obtain a zinc chloride solution, adding 40 parts of dried coffee grounds into the zinc chloride solution, soaking for 1 hour, filtering, taking out and dissolving in 100 parts of wateroDrying for 2h under the condition of C, and then heating to 900-oCalcining for 1-2h, and sieving with a 1000-mesh sieve to obtain coffee carbon powder; (2) weighing 8 parts of nitric acid according to parts by weightDissolving silver in 100 parts of water to obtain silver nitrate solution, adding the coffee carbon powder obtained in the step (1) into the silver nitrate solution, soaking for 2h, filtering, taking out, adding the coffee carbon powder obtained by filtering into 600oAnd C, preserving the heat for 2 hours to obtain the modified coffee carbon powder.
4. The antibacterial polyester fiber according to claim 1, wherein the auxiliary antibacterial agent is prepared by the following steps: taking 10 parts of tea and 10 parts of quassia according to parts by weight, grinding into powder, adding the obtained powder into 100 parts of ethanol solution, and dissolving the mixture in 60 parts of ethanol solutionoStirring for 3 hr under C condition, filtering, collecting filtrate, and purifying at 50 deg.CoAnd (C) carrying out rotary evaporation under the condition of C to obtain the auxiliary antibacterial agent.
5. The antibacterial polyester fiber according to claim 4, wherein the average molecular weight of the polyoxyethylene is 300.
6. The antibacterial polyester fiber according to claim 1, wherein the average particle size of the nano titanium dioxide is 10-20 nm.
7. The antibacterial polyester fiber according to claim 1, wherein the weight ratio of the wood wax oil to the polyoxyethylene is 1: 1.
8. The preparation method of the antibacterial polyester fiber according to any one of claims 1 to 7, characterized by comprising the following steps:
weighing modified coffee carbon powder, an auxiliary antibacterial agent, a mixture of nano titanium dioxide, wood wax oil and polyoxyethylene and dodecyl betaine according to a ratio, mixing to obtain a mixture, and then mixing PET slices and the mixture to obtain a master batch;
and secondly, performing melt extrusion and granulation on the obtained master batch to obtain an antibacterial polyester master batch, and spinning the obtained antibacterial polyester master batch by adopting a melt spinning method to obtain the antibacterial polyester fiber.
9. An antibacterial fabric, characterized in that the antibacterial fabric is woven by the antibacterial polyester fiber of claims 1-7.
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