CN115467157A - Preparation method of nano water-repellent goose down - Google Patents
Preparation method of nano water-repellent goose down Download PDFInfo
- Publication number
- CN115467157A CN115467157A CN202211301556.5A CN202211301556A CN115467157A CN 115467157 A CN115467157 A CN 115467157A CN 202211301556 A CN202211301556 A CN 202211301556A CN 115467157 A CN115467157 A CN 115467157A
- Authority
- CN
- China
- Prior art keywords
- nano
- water
- repellent
- modified
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000272814 Anser sp. Species 0.000 title claims abstract description 57
- 239000005871 repellent Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 106
- 239000002086 nanomaterial Substances 0.000 claims abstract description 90
- 239000007788 liquid Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000006185 dispersion Substances 0.000 claims abstract description 51
- 238000001035 drying Methods 0.000 claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 38
- 239000012670 alkaline solution Substances 0.000 claims abstract description 29
- 230000004048 modification Effects 0.000 claims abstract description 21
- 238000012986 modification Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000004913 activation Effects 0.000 claims abstract description 18
- 238000005530 etching Methods 0.000 claims abstract description 17
- 230000010355 oscillation Effects 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 52
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 26
- 239000012535 impurity Substances 0.000 claims description 25
- 238000004061 bleaching Methods 0.000 claims description 23
- 230000001954 sterilising effect Effects 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 238000004659 sterilization and disinfection Methods 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 5
- 239000005543 nano-size silicon particle Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 2
- 210000003746 feather Anatomy 0.000 abstract description 38
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 48
- 238000002791 soaking Methods 0.000 description 25
- NCPXQVVMIXIKTN-UHFFFAOYSA-N trisodium;phosphite Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])[O-] NCPXQVVMIXIKTN-UHFFFAOYSA-N 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 19
- 230000006872 improvement Effects 0.000 description 9
- 239000003242 anti bacterial agent Substances 0.000 description 8
- 239000003599 detergent Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- -1 softener Substances 0.000 description 6
- 238000009736 wetting Methods 0.000 description 6
- 230000001678 irradiating effect Effects 0.000 description 5
- 230000002940 repellent Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 206010001497 Agitation Diseases 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000021120 animal protein Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic System; Aluminates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Abstract
The invention discloses a method for preparing nano water-repellent goose down, which comprises the following steps: taking a granular nano material, carrying out surface activation modification treatment on the nano material to obtain a modified nano material, and dispersing the modified nano material in an organic solvent to obtain a dispersion liquid; taking goose down raw materials, carrying out pretreatment to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material; adding the modified down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally drying to obtain the nano water-repellent goose down. The invention can ensure that the nano material is evenly and fully attached to the surface of the down feather material, the combination effect is obviously improved, and the nano material can not fall off in the wearing friction and washing processes in the later period, thereby keeping the water repellency for a long time.
Description
Technical Field
The invention relates to the technical field of down feather treatment, in particular to a preparation method of nanometer water-repellent goose down.
Background
The goose down has the advantages of high hollowness, good fluffiness, excellent rebound resilience and the like, and has more excellent heat preservation performance and texture compared with duck down, so that the goose down is more applied to high-end clothes. Goose down is used as an animal protein fiber, ten million triangular fine air holes are densely distributed on goose down spherical fiber, the goose down spherical fiber can contract and expand along with the change of air temperature, the temperature adjusting function is generated, the goose down spherical fiber can absorb hot air emitted by a human body and isolate the invasion of external cold air. However, when the goose down meets water, the water is attached to the fibers, so that air holes among the fibers are reduced, the down is shrunk, and the heat preservation and temperature regulation effects of the down are greatly reduced.
At present, the technology of applying the nano material to the surface of down fiber is adopted to ensure that the down can obtain better water repellency, and the defect that the heat preservation effect of the down is reduced when the down meets water is overcome. The production of the nanometer water repellent down feather is generally that the nanometer material is mixed with water and then added with the down feather for stirring and soaking, and then the nanometer material is attached to the surface of the down feather after dehydration and drying, thereby increasing the hydrophobic capability of the down feather. For example, chinese patent publication No. CN114908572A discloses a modification method for improving the hydrophobicity of down feather, which discloses: putting nano silicon dioxide into a reaction kettle, introducing ammonia gas into the reaction kettle to enable the nano silicon dioxide in the reaction kettle to be in a saturated ammonia gas environment, stirring at 500-600rpm for 20-30min, keeping the temperature at 70-80 ℃, and reacting at constant temperature for 2h to obtain a reactant; (2) Uniformly stirring the reactant in the step (1) and water according to a weight ratio of 1:20, uniformly stirring, and repeating the centrifugal operation for 7-8 times to obtain a treatment solution; (3) And (3) putting the treatment liquid in the step (2) into a drying box, keeping the temperature at 30-35 ℃, drying at a constant temperature to form solid particles, and then mixing and stirring the solid particles and the down feather to enable the solid particles to be attached to the surface of the down feather, so that a hydrophobic function is generated. For another example, chinese patent publication No. CN103590208A discloses a method for making waterproof down, which specifically discloses that "dried down is placed in a cooling and drying machine, waterproof agent is sprayed, stirring is performed to make the agent fully cover the down, and normal temperature air is introduced to blow the down dry", "the waterproof agent is a nano waterproof agent", and the hydrophobic function is also achieved through nano material.
However, the existing nano water repellent technology has the following defects: after the nano material is attached to the surface of the down feather, the nano material gradually falls off along with wearing friction and washing processes, so that the surface of the down feather is exposed, and the water repellency is greatly reduced.
Disclosure of Invention
The invention aims to provide a method for preparing nano water-repellent goose down, which solves the problem that the water repellency of the existing nano water-repellent goose down is greatly reduced because nano materials on the surface of the goose down gradually fall off and the surface of the goose down is exposed along with wearing friction and washing processes.
The invention realizes the purpose through the following technical scheme:
a preparation method of nanometer water-repellent goose down comprises the following steps:
s1, taking a granular nano material, carrying out surface activation modification treatment on the nano material to obtain a modified nano material, and dispersing the modified nano material in an organic solvent to obtain a dispersion liquid;
s2, taking goose down raw materials, pretreating to obtain a down material, and performing surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material;
and S3, adding the modified down material into the dispersion liquid, performing stirring treatment and ultrasonic oscillation treatment on the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally drying to obtain the nano water-repellent goose down.
The further improvement is that in the step S1, the granular nano material is one or more of nano silicon dioxide, nano titanium dioxide and nano aluminum oxide.
The further improvement is that in the step S1, the particle size of the granular nano material is 0.1-100nm.
In a further improvement, in step S1, the specific operations of the surface activation modification treatment are: drying the granular nano material at 100-120 deg.C, dispersing the granular nano material with ethanol, placing in 40-60 deg.C water bath at 30-50KHz, performing ultrasonic treatment for 30-40min, adding silane coupling agent, controlling temperature at 110-130 deg.C, and stirring at 300-400r/min for 20-25min.
The further improvement is that the dosage proportion of the granular nano material, the ethanol and the silane coupling agent is that the granular nano material is ethanol and the silane coupling agent =10g, (30-50) mL, (0.1-0.3) g.
The further improvement is that the silane coupling agent is one of gamma-aminopropyl triethoxysilane, gamma-methacryloxypropyl trimethoxysilane, gamma-glycidoxypropyl trimethoxysilane, vinyl triethoxysilane and vinyl trimethoxysilane.
The further improvement is that in the step S1, the organic solvent is selected from one of methanol, ethanol, ethylene glycol and n-butanol.
The further improvement is that in the step S2, the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying.
Wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; sterilizing with ultraviolet rays with wavelength of 185-195nm for 10-20min; the bleaching is carried out by soaking with hydrogen peroxide and sodium phosphite, and comprises the following steps: taking the down materials, adding 10-15 times of water by weight, adding hydrogen peroxide and sodium phosphite into water according to the proportion of 10kg of down materials to (5-15) L of hydrogen peroxide to (1-3) kg of sodium phosphite, adjusting the pH value of the solution to 7-8, and soaking for 2-5h at the temperature of 25-30 ℃; dewatering refers to centrifuging and dewatering at low speed of 300r/min for 2-3min, and centrifuging and dewatering at high speed of 650r/min for 5-7min; the drying refers to drying with hot air dryer at 90-100 deg.C for 10-12min.
The further improvement is that in the step S2, the alkaline solution is 0.55-5mol/L sodium hydroxide solution or potassium hydroxide solution, the dosage ratio of the alkaline solution to the down material is alkaline solution: down material = (0.2-0.6) L:10g, the etching treatment temperature is 20-40 ℃, and the etching treatment time is 20-100min.
The further improvement is that in the step S3, the dosage ratio of the modified down material to the dispersion liquid is that the modified down material is that the dispersion liquid is =10g (0.5-1) L, the stirring treatment refers to stirring at the temperature of 40-60 ℃ and the speed of 100-200r/min, and the ultrasonic oscillation treatment has the frequency of 20-25kHz and the power of 300-450W.
The invention has the beneficial effects that: according to the invention, the surface activation modification treatment is firstly carried out on the nano material, so that the surface activity of the nano material is increased, the nano material is beneficial to being combined with other substances, the alkaline solution is adopted to carry out surface etching treatment on the down material, a three-dimensional porous structure is formed on the surface of the down material, an attached binding force point is provided for the nano material, then the nano material is uniformly and fully attached to the surface of the down material under the assistance of stirring treatment and ultrasonic oscillation treatment, the binding effect is obviously improved, and the nano material cannot fall off in the wearing friction and washing processes in the later period, so that the water repellency is maintained for a long time.
Detailed Description
The present application is described in further detail below with reference to examples, and it should be noted that the following detailed description is only for illustrative purposes and should not be construed as limiting the scope of the present application, and that the following non-limiting examples and modifications can be made by those skilled in the art based on the above-mentioned application.
Example 1
A method for preparing nano water-repellent goose down comprises the following steps:
s1, taking granular nano titanium dioxide with the particle size of 0.1-1nm as a nano material, carrying out surface activation modification treatment on the nano material to obtain a modified nano material, and dispersing the modified nano material in methanol to obtain a dispersion liquid;
the surface activation modification treatment comprises the following specific operations: taking a nano material, drying at 100 ℃, dispersing the nano material by using ethanol, placing the nano material in a water bath at 40 ℃ for 30KHz ultrasonic treatment for 40min, adding a silane coupling agent, controlling the temperature at 110 ℃, and continuously stirring for 25min at the rotating speed of 300r/min, wherein the dosage ratio of the nano material to the ethanol to the silane coupling agent is (1: 0.10 g); the silane coupling agent is gamma-aminopropyl triethoxysilane;
s2, taking goose down raw materials, carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; the cleaning is to add a detergent, a softener, an antibacterial agent and the like for soaking and cleaning; sterilizing with ultraviolet rays, and irradiating with 185nm ultraviolet rays for 10min; the bleaching is carried out by soaking with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 10 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of down feather material to 5L of hydrogen peroxide to 1kg of sodium phosphite, adjusting the pH value of the solution to 7, and soaking for 5 hours at the temperature of 25 ℃; dewatering means that the centrifugal machine is used for firstly carrying out centrifugal dewatering at a low speed of 300r/min for 2min and then carrying out centrifugal dewatering at a high speed of 650r/min for 5min; drying refers to drying with hot air dryer at 90 deg.C for 12min;
wherein the alkaline solution is 0.55mol/L sodium hydroxide solution, the dosage ratio of the alkaline solution to the down material is that the down material is =0.2L and 10g, the etching treatment temperature is 20 ℃, and the etching treatment time is 100min.
S3, adding the modified down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally airing to obtain the nano water-repellent goose down;
the using amount ratio of the modified eiderdown material to the dispersion liquid is that the modified eiderdown material is that the dispersion liquid is =10g and the stirring treatment is that stirring is carried out at the temperature of 40 ℃ and at the speed of 100r/min, the frequency of the ultrasonic vibration treatment is 20kHz, and the power is 300W.
Example 2
A method for preparing nano water-repellent goose down comprises the following steps:
s1, taking granular nano-silica with the particle size of 2-4nm as a nano-material, carrying out surface activation modification treatment on the nano-material to obtain a modified nano-material, and dispersing the modified nano-material in ethanol to obtain a dispersion liquid;
the surface activation modification treatment comprises the following specific operations: taking a nano material, drying at 110 ℃, then dispersing the nano material by using ethanol, placing the nano material in a water bath at 50 ℃ for ultrasonic treatment for 35min at 40KHz, then adding a silane coupling agent, controlling the temperature at 120 ℃, and continuously stirring for 22min at a rotating speed of 350r/min, wherein the dosage ratio of the nano material to the ethanol to the silane coupling agent is that the ratio of ethanol to the silane coupling agent is = 10g; the silane coupling agent is gamma-methacryloxypropyl trimethoxy silane;
s2, taking goose down raw materials, carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material to obtain a modified down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; sterilizing with ultraviolet rays, and irradiating with 190nm ultraviolet rays for 15min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 12 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down feather material to 10L of hydrogen peroxide to 2kg of sodium phosphite, adjusting the pH value of the solution to 7.5, and soaking for 3 hours at the temperature of 28 ℃; dewatering refers to centrifuging and dewatering at low speed of 300r/min for 2.5min, and then centrifuging and dewatering at high speed of 650r/min for 6min; drying refers to drying with hot air dryer at 95 deg.C for 11min;
the alkaline solution is a 2mol/L sodium hydroxide solution, the usage ratio of the alkaline solution to the down materials is alkaline solution, the down materials = 0.4L.
S3, adding the modified down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally airing to obtain the nano water-repellent goose down;
the dosage ratio of the modified down material to the dispersion liquid is that the modified down material is that the dispersion liquid is =10g, the stirring treatment refers to stirring at the temperature of 50 ℃ and at the speed of 150r/min, the frequency of the ultrasonic oscillation treatment is 22kHz, and the power is 380W.
Example 3
A method for preparing nano water-repellent goose down comprises the following steps:
s1, taking granular nano aluminum oxide with the grain diameter of 90-100nm as a nano material, carrying out surface activation modification treatment on the nano material to obtain a modified nano material, and dispersing the modified nano material in ethylene glycol to obtain a dispersion liquid;
the specific operation of the surface activation modification treatment is as follows: taking a nano material, drying at 120 ℃, dispersing the nano material by using ethanol, placing the nano material in a water bath at 60 ℃ for 50KHz ultrasonic treatment for 30min, adding a silane coupling agent, controlling the temperature at 130 ℃, and continuously stirring at the rotating speed of 400r/min for 20min, wherein the dosage ratio of the nano material, the ethanol and the silane coupling agent is that the ethanol to the silane coupling agent is = 10g; the silane coupling agent is vinyl triethoxysilane;
s2, taking goose down raw materials, carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material to obtain a modified down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; the cleaning is to add a detergent, a softener, an antibacterial agent and the like for soaking and cleaning; sterilizing with ultraviolet rays, and irradiating with 195nm ultraviolet rays for 20min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 15 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down feather material to 15L of hydrogen peroxide to 3kg of sodium phosphite, adjusting the pH value of the solution to 8, and soaking for 2 hours at the temperature of 30 ℃; dewatering refers to centrifuging at low speed of 300r/min for 3min, and centrifuging at high speed of 650r/min for 7min; drying refers to drying with hot air dryer at 100 deg.C for 10min;
the alkaline solution is a 5mol/L potassium hydroxide solution, the dosage ratio of the alkaline solution to the down material is alkaline solution, the down material = 0.6L.
S3, adding the modified down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally airing to obtain the nano water-repellent goose down;
the dosage ratio of the modified down material to the dispersion liquid is that the modified down material is that the dispersion liquid is =10g, the stirring treatment refers to stirring at the temperature of 60 ℃ and at the speed of 200r/min, the frequency of the ultrasonic oscillation treatment is 25kHz, and the power is 450W.
Comparative example 1
A method for preparing nano water-repellent goose down comprises the following steps:
s1, taking granular nano silicon dioxide with the particle size of 2-4nm as a nano material, and dispersing the nano material in ethanol to obtain a dispersion liquid;
s2, taking goose down raw materials, carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; sterilizing with ultraviolet rays, and irradiating with 190nm ultraviolet rays for 15min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 12 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down feather material to 10L of hydrogen peroxide to 2kg of sodium phosphite, adjusting the pH value of the solution to 7.5, and soaking for 3 hours at the temperature of 28 ℃; dewatering means that the centrifugal machine is used for firstly carrying out centrifugal dewatering at a low speed of 300r/min for 2.5min and then carrying out centrifugal dewatering at a high speed of 650r/min for 6min; drying refers to drying with hot air dryer at 95 deg.C for 11min;
the alkaline solution is a 2mol/L sodium hydroxide solution, the usage ratio of the alkaline solution to the down materials is alkaline solution, the down materials = 0.4L.
S3, adding the modified down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally airing to obtain the nano water-repellent goose down;
the dosage ratio of the modified down material to the dispersion liquid is that the modified down material is that the dispersion liquid is =10g, the stirring treatment refers to stirring at the temperature of 50 ℃ and at the speed of 150r/min, the frequency of the ultrasonic oscillation treatment is 22kHz, and the power is 380W.
Comparative example 2
A preparation method of nanometer water-repellent goose down comprises the following steps:
s1, taking granular nano-silica with the particle size of 2-4nm as a nano-material, carrying out surface activation modification treatment on the nano-material to obtain a modified nano-material, and dispersing the modified nano-material in ethanol to obtain a dispersion liquid;
the specific operation of the surface activation modification treatment is as follows: taking a nano material, drying at 110 ℃, dispersing the nano material by using ethanol, placing the nano material in a water bath at 50 ℃ for 40KHz ultrasonic treatment for 35min, adding a silane coupling agent, controlling the temperature at 120 ℃, and continuously stirring for 22min at the rotating speed of 350r/min, wherein the dosage ratio of the nano material to the ethanol to the silane coupling agent is that the ratio of ethanol to silane coupling agent = 10g; the silane coupling agent is gamma-methacryloxypropyltrimethoxysilane;
s2, taking goose down raw materials, and carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; sterilizing with ultraviolet rays, and irradiating with 190nm ultraviolet rays for 15min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 12 times of water into the down materials, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down materials to 10L of hydrogen peroxide to 2kg of sodium phosphite, adjusting the pH value of the solution to 7.5, and soaking for 3 hours at the temperature of 28 ℃; dewatering means that the centrifugal machine is used for firstly carrying out centrifugal dewatering at a low speed of 300r/min for 2.5min and then carrying out centrifugal dewatering at a high speed of 650r/min for 6min; drying refers to drying with hot air dryer at 95 deg.C for 11min;
s3, adding the down material into the dispersion liquid, applying stirring treatment and ultrasonic oscillation treatment to the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the down material to form a water-repellent film layer, and naturally drying to obtain the nano water-repellent goose down;
the using amount ratio of the down materials to the dispersion liquid is that the down materials to the dispersion liquid is =10g and 0.8L, the stirring treatment refers to stirring at 150r/min at the temperature of 50 ℃, the frequency of the ultrasonic vibration treatment is 22kHz, and the power is 380W.
Comparative example 3
A method for preparing nano water-repellent goose down comprises the following steps:
s1, taking granular nano-silica with the particle size of 2-4nm as a nano-material, carrying out surface activation modification treatment on the nano-material to obtain a modified nano-material, and dispersing the modified nano-material in ethanol to obtain a dispersion liquid;
the specific operation of the surface activation modification treatment is as follows: taking a nano material, drying at 110 ℃, dispersing the nano material by using ethanol, placing the nano material in a water bath at 50 ℃ for 40KHz ultrasonic treatment for 35min, adding a silane coupling agent, controlling the temperature at 120 ℃, and continuously stirring for 22min at the rotating speed of 350r/min, wherein the dosage ratio of the nano material to the ethanol to the silane coupling agent is that the ratio of ethanol to silane coupling agent = 10g; the silane coupling agent is gamma-methacryloxypropyltrimethoxysilane;
s2, taking goose down raw materials, carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material;
wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; the sterilization is ultraviolet sterilization, and ultraviolet irradiation with wavelength of 190nm is performed for 15min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 12 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down feather material to 10L of hydrogen peroxide to 2kg of sodium phosphite, adjusting the pH value of the solution to 7.5, and soaking for 3 hours at the temperature of 28 ℃; dewatering means that the centrifugal machine is used for firstly carrying out centrifugal dewatering at a low speed of 300r/min for 2.5min and then carrying out centrifugal dewatering at a high speed of 650r/min for 6min; drying refers to drying with hot air dryer at 95 deg.C for 11min;
the alkaline solution is a 2mol/L sodium hydroxide solution, the usage ratio of the alkaline solution to the down materials is alkaline solution, the down materials = 0.4L.
S3, adding the modified down material into the dispersion liquid to enable the modified nano material in the dispersion liquid to be attached to the surface of the modified down material to form a water-repellent film layer, and naturally airing to obtain the nano water-repellent goose down;
the dosage ratio of the modified down material to the dispersion liquid is that the modified down material is that the dispersion liquid is =10g, the stirring treatment refers to stirring at the temperature of 50 ℃ and at the speed of 150r/min, the frequency of the ultrasonic oscillation treatment is 22kHz, and the power is 380W.
Blank group
Taking goose down raw materials, and carrying out pretreatment, wherein the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying to obtain the down material.
Wherein, the impurity removal refers to the removal of particle impurities, hair stems, hair pieces and the like; cleaning by adding detergent, softener, antibacterial agent, etc. for soaking and cleaning; the sterilization is ultraviolet sterilization, and ultraviolet irradiation with wavelength of 190nm is performed for 15min; the bleaching is carried out by soaking and bleaching with hydrogen peroxide and sodium phosphite, and comprises the following steps: adding 12 times of water into the down feather material, adding hydrogen peroxide and sodium phosphite into the water according to the proportion of 10kg of the down feather material to 10L of hydrogen peroxide to 2kg of sodium phosphite, adjusting the pH value of the solution to 7.5, and soaking for 3 hours at the temperature of 28 ℃; dewatering means that the centrifugal machine is used for firstly carrying out centrifugal dewatering at a low speed of 300r/min for 2.5min and then carrying out centrifugal dewatering at a high speed of 650r/min for 6min; the drying refers to drying with hot air dryer at 95 deg.C for 11min.
And (3) detecting the whiteness of the down feather:
the whiteness value Wr of the sample was measured using a ZBD model fluorescent whiteness meter. The specific test method is as follows: samples of the water repellent nano-goose down prepared in examples 1 to 3, comparative examples 1 to 3 and blank groups were placed in a plastic bag (10 cm. Times.15 cm) of a certain size, and the down feather in the plastic bag was shaken to be uniformly and tightly placed on one side of the sealed plastic bag and pressed tightly to ensure that no light was transmitted during the test, and each sample was measured 6 times at different positions, and the results were averaged as shown in table 1:
table 1: down whiteness detection result
| Group of | Whiteness (% of) |
| Example 1 | 79 |
| Example 2 | 79 |
| Example 3 | 78 |
| Comparative example 1 | 80 |
| Comparative example 2 | 81 |
| Comparative example 3 | 80 |
| Blank group | 82 |
As can be seen from table 1, the whiteness of the down feather obtained by the preparation method of the embodiments 1 to 3 of the present invention is better, and all the whiteness reaches over 78, and meanwhile, the whiteness of the embodiments 1 to 3 is only slightly reduced by comparing with a blank group, thereby showing that the water repellent treatment process of the present invention has little influence on the whiteness of the down feather, and the slight difference cannot be distinguished by naked eyes.
Determination of bulk:
(1) Taking the nano water-repellent goose down samples prepared in the examples 1-3, the comparative examples 1-3 and the blank group, respectively extracting about 30g of samples from the samples, putting the samples into an eight-basket oven to be dried for 45min at the temperature of (70 +/-2) DEG C, shaking the samples into a pretreatment box by hands one by one to be fluffed, and recovering for 24h in the environment with the temperature of (20 +/-2) DEG C and the relative air humidity of (65 soil 2)%;
(2) Weigh sample 28.4g, tremble into the fluffy meter of national standard, after stirring and paving, make the aluminium clamp plate place the sample gently on, let its natural whereabouts, it is static 1min after stopping, record fluffy meter section of thick bamboo wall both sides scale, the testing result is shown as table 2:
table 2: down filling power detection result
| Group of | Bulk (cm) 3 ) |
| Example 1 | 620 |
| Example 2 | 625 |
| Example 3 | 615 |
| Comparative example 1 | 620 |
| Comparative example 2 | 620 |
| Comparative example 3 | 625 |
| Blank group | 640 |
As can be seen from table 1, the filling power of the down feather obtained by the preparation method of the embodiments 1 to 3 of the present invention is still good, which is up to 615 or more, and meanwhile, the filling power of the down feather of the embodiments 1 to 3 is reduced to a certain extent by comparing with the blank group, but the filling power can still be within the receiving range and still meet the national standard.
Down odor determination (constant temperature dry sniffing):
(1) The nano water-repellent goose down samples prepared in the examples 1-3, the comparative examples 1-3 and the blank group are respectively condensed into two parts and are loosely put in a non-odor sealed container for one day for standby.
(2) And (3) cleaning a 1000mL wide-mouth bottle with a cover by using distilled water, drying and cooling for later use.
(3) 10g of feather down sample is weighed from two loose feather down samples which are put for one day, and the feather down samples are respectively put into two treated wide-mouth bottles, and the bottle caps are covered.
(4) And (3) placing the sample bottle in a constant temperature box, drying at 50 ℃ for 1h, taking out and cooling to room temperature.
(5) Opening the bottle cap in the environment without peculiar smell, smelling and distinguishing the smell, and describing the grade intensity of the smell by using characters.
(6) Odor grade intensity was divided into four grades, see table 3.
(7) The results of the measurements of examples 1 to 3, comparative examples 1 to 3, and blank groups are shown in Table 4.
Table 3: odor grade intensity classification
Table 4: odor rating results
As can be seen from table 4, the down obtained by the preparation method of examples 1-3 of the present invention has only very faint odor, example 2 has no odor, and the blank group has only very faint odor, which indicates that no off-flavor is generated to the down by the preparation method of the present invention, and even in some preferred examples, the odor can be further reduced.
And (3) water repellency performance determination:
(1) Taking the nano water-repellent goose down samples prepared in the example 2, the comparative examples 1-3 and the blank group, respectively dripping water on the surface of the goose down by using a rubber head dropper, measuring the wetting time, and taking the average value of 10 measurements as the wetting time of the measured sample;
(2) Taking the nano water-repellent goose down samples prepared in the example 2, the comparative examples 1-3 and the blank group, respectively, mechanically rubbing the samples to form down clusters, winding the down clusters mutually to prepare down balls with the diameter of 1cm, wrapping the down balls by gauze, and putting the down balls into a sealing bag for storage; taking a 500mL beaker, adding 400mL of distilled water, taking down balls, gently placing the down balls into the beaker, recording the time from the time when the down balls are placed into the beaker to the time when the down balls sink into the bottom of the beaker, and judging the water repellency of the down according to the sinking time, wherein the method specifically comprises the following steps: stage 1: 6-12h; and 2, stage: 12-24h; and 3, stage: > 24h (if the test time is greater than 24h, the experiment is stopped, scored as 3 grades).
(3) Samples of the nano water-repellent goose down prepared in example 2, comparative examples 1 to 3 and blank group were washed 10 times (1 g of the down was immersed in 500mL of distilled water and washed with shaking at 40 ℃ for 15min each time), and then the washed samples were dried and tested for wet time and water-repellent property rating in the same manner as in (1) and (2) above.
(4) The results are statistically shown in Table 5.
Table 5: results of Water repellency measurement
As can be seen from Table 5, the down feather obtained by the preparation method of the embodiment 2 has excellent water repellency, the unwashed wetting time of the down feather reaches 34s, the wetting time after washing reaches 32s, the number of the washed down feather is obviously higher than that of a blank group, and the water repellency grade also reaches 3; compared with the prior art, the method has the advantages that in the comparative example 1, the surface activation modification treatment is not carried out on the nano material, the comparative example 2 does not carry out the surface etching treatment on the down feather material, the wetting time and the water repellency grade are equivalent to those in the example 2 when the down feather material is not washed, but after washing, the wetting time is obviously reduced, the water repellency grade is also reduced to the grade 1, the integral water repellency is greatly reduced, the washing process is proved to damage the water repellent film structure on the surface of the down feather, a large amount of nano materials are separated, and the surface activation modification treatment and the surface etching treatment play a key role in improving the bonding effect of the nano materials; in contrast, in comparative example 3, since the agitation treatment and the ultrasonic oscillation treatment were not performed, the water repellency of the unwashed and washed water was decreased to some extent as a whole, which indicates that the agitation treatment and the ultrasonic oscillation treatment can further improve the bonding effect of the nanomaterial.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention.
Claims (10)
1. A preparation method of nanometer water-repellent goose down is characterized by comprising the following steps:
s1, taking a granular nano material, carrying out surface activation modification treatment on the nano material to obtain a modified nano material, and dispersing the modified nano material in an organic solvent to obtain a dispersion liquid;
s2, taking goose down raw materials, carrying out pretreatment to obtain a down material, and carrying out surface etching treatment on the down material by adopting an alkaline solution to form a three-dimensional porous structure on the surface of the down material so as to obtain a modified down material;
and S3, adding the modified down material into the dispersion liquid, performing stirring treatment and ultrasonic oscillation treatment on the dispersion liquid to enable the modified nano material in the dispersion liquid to be uniformly attached to the surface of the modified down material to form a water-repellent film layer, and naturally drying to obtain the nano water-repellent goose down.
2. The method for preparing nano water-repellent goose down according to claim 1, wherein in step S1, the granular nano material is one or more of nano silicon dioxide, nano titanium dioxide and nano aluminum oxide.
3. The method for preparing nano water-repellent goose down according to claim 1 or 2, wherein in step S1, the particle size of said granular nano material is 0.1-100nm.
4. The method for preparing nano water-repellent goose down according to claim 1, wherein in step S1, the specific operations of the surface activation modification treatment are as follows: drying the granular nano material at 100-120 deg.C, dispersing the granular nano material with ethanol, placing in 40-60 deg.C water bath for 30-40min of ultrasonic treatment at 30-50KHz, adding silane coupling agent, controlling temperature at 110-130 deg.C, and continuously stirring at 300-400r/min for 20-25min.
5. The preparation method of the nanometer water-repellent goose down as claimed in claim 4, wherein the dosage ratio of the granular nanometer material to the ethanol to the silane coupling agent is that the granular nanometer material to the silane coupling agent is =10g (30-50) mL (0.1-0.3) g.
6. The method for preparing nano water-repellent goose down according to claim 4 or 5, wherein said silane coupling agent is one of gamma-aminopropyltriethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, vinyltriethoxysilane and vinyltrimethoxysilane.
7. The method for preparing nano water-repellent goose down according to claim 1, wherein in step S1, the organic solvent is selected from one of methanol, ethanol, ethylene glycol and n-butanol.
8. The method for preparing the nano water-repellent goose down according to claim 1, wherein in the step S2, the pretreatment comprises impurity removal, cleaning, sterilization, bleaching, rinsing, dehydration and drying.
9. The method for preparing nano water-repellent goose down according to claim 1, wherein in step S2, the alkaline solution is 0.55-5mol/L sodium hydroxide solution or potassium hydroxide solution, the dosage ratio of the alkaline solution to the down is alkaline solution: down = (0.2-0.6) L:10g, the etching treatment temperature is 20-40 ℃, and the etching treatment time is 20-100min.
10. The method for preparing the nano water-repellent goose down according to claim 1, wherein in step S3, the amount ratio of the modified down material to the dispersion liquid is modified down material: dispersion liquid =10g (0.5-1) L, the stirring treatment is performed at a temperature of 40-60 ℃ and at a speed of 100-200r/min, the frequency of the ultrasonic oscillation treatment is 20-25kHz, and the power is 300-450W.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211301556.5A CN115467157A (en) | 2022-10-24 | 2022-10-24 | Preparation method of nano water-repellent goose down |
| CA3181998A CA3181998A1 (en) | 2022-10-24 | 2022-11-14 | A nano-water-repellent goose down preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211301556.5A CN115467157A (en) | 2022-10-24 | 2022-10-24 | Preparation method of nano water-repellent goose down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115467157A true CN115467157A (en) | 2022-12-13 |
Family
ID=84337079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211301556.5A Pending CN115467157A (en) | 2022-10-24 | 2022-10-24 | Preparation method of nano water-repellent goose down |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115467157A (en) |
| CA (1) | CA3181998A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110143029A1 (en) * | 2009-12-14 | 2011-06-16 | Yen-Chung Chen | Preparing method for coating pmma particles with silicon dioxide |
| JP2015048297A (en) * | 2013-09-04 | 2015-03-16 | リコーイメージング株式会社 | Method of producing surface-modified mesoporous silica nanoparticle |
| CN104928795A (en) * | 2015-06-26 | 2015-09-23 | 安徽皖翎羽绒制品有限公司 | Down composite fiber with self-cleaning function |
| CN112143440A (en) * | 2020-10-16 | 2020-12-29 | 高梵(浙江)信息技术有限公司 | Polyurethane adhesive for seamless down jackets |
| CN112521780A (en) * | 2020-12-23 | 2021-03-19 | 江南大学 | Preparation method of anti-dazzle hydrophobic modified nano silica sol |
| CN113789661A (en) * | 2021-10-26 | 2021-12-14 | 高梵(浙江)信息技术有限公司 | Production method of nano water-repellent down feather |
| CN114908572A (en) * | 2022-05-17 | 2022-08-16 | 安徽芙芮雅羽绒有限公司 | Modification method for improving hydrophobicity of down feather |
-
2022
- 2022-10-24 CN CN202211301556.5A patent/CN115467157A/en active Pending
- 2022-11-14 CA CA3181998A patent/CA3181998A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110143029A1 (en) * | 2009-12-14 | 2011-06-16 | Yen-Chung Chen | Preparing method for coating pmma particles with silicon dioxide |
| JP2015048297A (en) * | 2013-09-04 | 2015-03-16 | リコーイメージング株式会社 | Method of producing surface-modified mesoporous silica nanoparticle |
| CN104928795A (en) * | 2015-06-26 | 2015-09-23 | 安徽皖翎羽绒制品有限公司 | Down composite fiber with self-cleaning function |
| CN112143440A (en) * | 2020-10-16 | 2020-12-29 | 高梵(浙江)信息技术有限公司 | Polyurethane adhesive for seamless down jackets |
| CN112521780A (en) * | 2020-12-23 | 2021-03-19 | 江南大学 | Preparation method of anti-dazzle hydrophobic modified nano silica sol |
| CN113789661A (en) * | 2021-10-26 | 2021-12-14 | 高梵(浙江)信息技术有限公司 | Production method of nano water-repellent down feather |
| CN114908572A (en) * | 2022-05-17 | 2022-08-16 | 安徽芙芮雅羽绒有限公司 | Modification method for improving hydrophobicity of down feather |
Non-Patent Citations (1)
| Title |
|---|
| 孔萍 等: "《塑性材料》", vol. 1, 广州：广东高等教育出版社, pages: 255 - 256 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3181998A1 (en) | 2023-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102978954B (en) | Method for preparing good-stability super-hydrophobic fabrics | |
| CN110774680B (en) | High-skin-affinity antibacterial fabric and preparation method thereof | |
| CN101117769A (en) | Cation hybrid collosol and method for improving clearness and fastness of decoration printing | |
| CN110157315B (en) | Heat insulation coating containing hollow silica microspheres and application thereof | |
| CN105544221A (en) | Super-hydrophobic fabric and constructing method thereof | |
| CN110343282A (en) | A kind of super-hydrophobicity nano-cellulose film and preparation method thereof | |
| CN115467157A (en) | Preparation method of nano water-repellent goose down | |
| CN114908572A (en) | Modification method for improving hydrophobicity of down feather | |
| CN113789661A (en) | Production method of nano water-repellent down feather | |
| CN111764159A (en) | Fluorine-free waterproof finishing method for cotton fabric | |
| Chen et al. | Preparation of peanut shell cellulose nanofibrils and their superhydrophobic aerogels and their application on cotton fabrics | |
| CN105544187B (en) | A kind of superhydrophobic fabric and preparation method thereof | |
| CN113882161A (en) | Production method of nano waterproof breathable down feather | |
| CN115094627B (en) | Preparation method of durable hydrophobic polyester fiber product | |
| CN110668450B (en) | High-dispersity nano silicon dioxide and preparation method thereof | |
| CN105755855A (en) | Production technology of water-proof cloth | |
| CN109972411A (en) | A kind of preparation method of yellowing-resistant polyurethane imitation leather coating fabric | |
| CN113174747B (en) | Spunlace nonwoven fabric for wiping and preparation method thereof | |
| CN114293380A (en) | Acrylic yarn with good color fixing performance and preparation method thereof | |
| CN113929104A (en) | Preparation method of silicon dioxide particle nano composite material | |
| CN111172769A (en) | Manufacturing process of anti-ultraviolet real silk fabric | |
| CN111945418A (en) | Preparation method of base film material of water-locking non-woven fabric mask | |
| CN107400381B (en) | The dedicated titanium dioxide process of Masterbatch | |
| Ling et al. | Fabrication of high Nano-ZnO assembled cotton fabric with UV blocking property | |
| CN110344236A (en) | A kind of tea grounds modified function quilted stockings of antibacterial and deodouring and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |