CN114561800B - Antibacterial heat-preservation chinlon and emergency heat-preservation blanket comprising same - Google Patents
Antibacterial heat-preservation chinlon and emergency heat-preservation blanket comprising same Download PDFInfo
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- CN114561800B CN114561800B CN202210463094.0A CN202210463094A CN114561800B CN 114561800 B CN114561800 B CN 114561800B CN 202210463094 A CN202210463094 A CN 202210463094A CN 114561800 B CN114561800 B CN 114561800B
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- heat
- preservation
- zinc oxide
- silver
- nano mullite
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- 238000004321 preservation Methods 0.000 title claims abstract description 38
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 31
- 229920006052 Chinlon® Polymers 0.000 title claims description 7
- 239000004744 fabric Substances 0.000 claims abstract description 48
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 33
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004677 Nylon Substances 0.000 claims abstract description 26
- 229920001778 nylon Polymers 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 18
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004246 zinc acetate Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-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
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000003115 biocidal effect Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000001963 growth medium Substances 0.000 description 2
- 230000002631 hypothermal effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000007969 cellular immunity Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004727 humoral immunity Effects 0.000 description 1
- 210000002865 immune cell Anatomy 0.000 description 1
- 229940088592 immunologic factor Drugs 0.000 description 1
- 239000000367 immunologic factor Substances 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 238000009630 liquid culture Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 230000000242 pagocytic effect Effects 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 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
- D06M11/83—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 metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/08—Warming pads, pans or mats; Hot-water bottles
-
- 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
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M15/568—Reaction products of isocyanates with polyethers
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- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
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- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses an antibacterial heat-preservation nylon fabric which is provided with a heat-preservation antibacterial coating, wherein the heat-preservation antibacterial coating contains a silver-zinc oxide-nano mullite ternary compound. In addition, the first-aid heat-insulating blanket uses the nylon fabric as an inner layer structure. The nylon fabric and the first-aid heat-insulating blanket containing the same have the functions of heat insulation and antibiosis, and have better washing resistance.
Description
Technical Field
The invention belongs to the technical field of weaving materials; relates to antibacterial heat-preservation chinlon and a first-aid heat-preservation blanket comprising the same.
Background
In war trauma medicine, the incidence and prognosis of post-traumatic hypothermia (< 35 ℃) is closely related to environmental factors. The temperature difference in cold regions is large throughout the year, frozen soil, accumulated snow and ice are more, the air humidity is high, the wind speed is high, the duration is long, and the critical degree of the original wound can be aggravated in a low-temperature environment. If the patient is not timely cured or the curing measures are improper, the patient is easily damaged by cold, and the incidence rate and the fatality rate of serious complications such as disability, shock and the like are increased. Therefore, the patients with war wound in cold region need to pay attention to heating, warming and rewarming after the treatment. In addition, research shows that hypothermia also affects the activity of immune cells of a human body, reduces phagocytic capacity of bacteria, reduces the effect on immune factors, reduces cellular immunity and humoral immunity of an organism, and causes the resistance of common bacteria to be reduced.
In this case, the first-aid heat-preservation blanket can play a positive role in the treatment of the sick and wounded in the cold region. Generally, the inner layer structure of the first-aid heat-insulating blanket adopts high-strength nylon fabric, and the nylon fabric has an antibacterial coating and can play the role of antibiosis and bacteriostasis. The middle layer structure is filled with high-strength fibers of the feathered aerogel and is compounded with an external power supply heating source, so that the self-heating and heat-insulating effects are achieved. The outer layer of the outer layer structure is coated with a waterproof antistatic coating, and the inner layer of the aluminizer prevents heat radiation.
Chinese utility model patent CN207871075U discloses a stretcher type heat preservation blanket for fighting field treatment, comprising a smooth material layer and a mattress body layer; the smooth material layer is made of a low friction material for reducing the frictional resistance during passing through the bed.
Chinese utility model patent CN211299359U discloses a portable heat preservation blanket, including the heat preservation blanket, above-mentioned heat preservation blanket includes five layer structures, is equipped with soft cloth layer, heat preservation, well hollow layer from skin to inlayer in proper order, and above-mentioned well hollow layer is sealed to be set up, is equipped with the inflation valve on the above-mentioned heat preservation blanket, and above-mentioned inflation valve intercommunication well hollow layer, above-mentioned heat preservation blanket lower extreme are equipped with a plurality of sack openings, and above-mentioned heat preservation blanket lower surface still is equipped with the telescopic link, and above-mentioned telescopic link is even during the section inserts corresponding sack opening respectively for prop up the heat preservation blanket by the telescopic link.
As an inner layer structure directly contacted with a human body, the antibacterial and heat-insulating properties of the nylon fabric are of great importance, but the nylon fabric in the prior art cannot give consideration to both properties. Moreover, the antibacterial or heat-insulating coating of the nylon fabric is seriously damaged after being washed for a certain number of times, and the corresponding function is obviously reduced.
Therefore, the polyamide fabric which has the functions of heat preservation and antibiosis and has better washing resistance and the first-aid heat preservation blanket containing the polyamide fabric are urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a polyamide fabric which has a heat preservation effect, an antibacterial effect and a better washing resistance, and a first-aid heat preservation blanket containing the polyamide fabric.
In order to achieve the above object, in one aspect, the technical solution adopted by the present invention is as follows: the antibacterial heat-preservation nylon fabric is provided with a heat-preservation antibacterial coating and is characterized in that the heat-preservation antibacterial coating contains a ternary compound of silver-zinc oxide-nano mullite.
The nylon fabric is characterized in that the weight ratio of the silver to the zinc oxide to the nano mullite is (0.18-0.30): 1: (2.5-3.5).
The nylon fabric provided by the invention has the advantages that the average grain diameter of the nano mullite is 20-40nm, the specific surface area is 120-160m2/g。
According to the nylon fabric, the silver-zinc oxide-nano mullite ternary compound is modified by gamma-aminopropyltriethoxysilane.
The nylon fabric provided by the invention is characterized in that the weight ratio of the silver-zinc oxide-nano mullite ternary compound to the gamma-aminopropyltriethoxysilane is 1: (0.02-0.03).
The nylon fabric is selected from nylon 66.
According to the nylon fabric, single-component polyether polyurethane is used as a coating agent for the heat-preservation antibacterial coating, and the silver-zinc oxide-nano mullite ternary compound is dispersed in an organic solution of the coating agent.
The nylon fabric provided by the invention is characterized in that the weight ratio of the single-component polyether polyurethane to the silver-zinc oxide-nano mullite ternary compound is (3-5): 1.
the nylon fabric is characterized in that the heat-preservation antibacterial coating is obtained by a blade coating method.
In another aspect, the invention further provides a first-aid heat-insulating blanket, which is characterized in that the nylon fabric is used as an inner layer structure.
Compared with the prior art, the nylon fabric and the emergency heat-insulating blanket containing the same have the advantages of heat insulation, antibacterial function and better washing resistance.
Without wishing to be bound by any theory, the specific silver-zinc oxide-nano mullite ternary complex of the present invention performs the above-described function. The inventor believes that the zinc oxide and the nano mullite contribute more remarkably to the heat preservation effect; silver and zinc oxide have obvious antibacterial effect, but the nano mullite promotes the antibacterial effect in the same position; the modification of the silver-zinc oxide-nano mullite ternary complex in combination with a specific coating agent contributes more significantly to the washing resistance.
Detailed Description
It must be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include both one and more than one (i.e., two or more, including two) unless the context clearly dictates otherwise.
Unless otherwise indicated, the numerical ranges in this disclosure are approximate and, thus, may include values outside of the stated ranges. The numerical ranges may be stated herein as from "about" one particular value, and/or to "about" another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about," it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the numerical ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
References in the specification and concluding claims to parts by weight of a particular element or component in a composition or article refer to the weight relationship between the element or component and any other elements or components in the composition or article for which a part by weight is expressed.
In the present invention, unless specifically indicated to the contrary, or implied by the context or customary practice in the art, all solutions referred to herein are aqueous solutions; when the solute of the aqueous solution is a liquid, all fractions and percentages are by volume and the volume percentages of a component are based on the total volume of the composition or product in which it is contained; when the solute of the aqueous solution is a solid, all fractions and percentages are by weight, and the weight percentages of a component are based on the total weight of the composition or product in which the component is included.
References to "comprising," "including," "having," and similar terms in this specification are not intended to exclude the presence of any optional components, steps or procedures, whether or not any optional components, steps or procedures are specifically disclosed. In order to avoid any doubt, all methods claimed through use of the term "comprising" may include one or more additional steps, apparatus parts or components and/or materials unless stated to the contrary. In contrast, the term "consisting of … …" excludes any component, step, or procedure not specifically recited or recited. Unless otherwise specified, the term "or" refers to the listed members individually as well as in any combination.
Furthermore, the contents of any referenced patent or non-patent document in this application are incorporated by reference in their entirety, especially with respect to definitions disclosed in the pertinent art (to the extent not inconsistent with any definitions specifically provided herein) and general knowledge.
In the present invention, parts are parts by weight unless otherwise indicated, temperatures are all expressed in degrees celsius or at ambient temperature, and pressures are at or near atmospheric. The room temperature means 20 to 30 ℃. There are many variations and combinations of reaction conditions (e.g., component concentrations, desired solvents, solvent mixtures, temperatures, pressures, and other reaction ranges) as well as conditions that can be used to optimize the purity and yield of the product obtained by the process. Only reasonable routine experimentation will be required to optimise such process conditions.
Synthesis example 1
Dissolving 3.3g of zinc acetate in 120mL of absolute ethyl alcohol to obtain a zinc acetate solution; 4.4g of nano-mullite (average particle size 30nm, specific surface area 140 m) was added to the zinc acetate solution2And/g), uniformly dispersing by ultrasonic to obtain the zinc acetate-mullite dispersion liquid. 0.5g of lithium hydroxide is dissolved in 120mL of absolute ethyl alcohol under the action of ultrasonic waves to obtain an alkali liquor. Dropwise adding alkali liquor into the zinc acetate-nano mullite dispersion liquid at the speed of 2 drops per minute at the temperature of 5 ℃, continuously reacting for 2 hours after dropwise adding, and standing to obtain the zinc oxide-nano mullite sol.
In nitrogen atmosphere, 0.55g of silver nitrate is dissolved in 100mL of deionized water, 2g of p-aminophenol, 50mL of 1% sodium citrate solution and the zinc oxide-nano mullite sol are rapidly added, and reflux reaction is carried out for 1h at 90 ℃. And after the reaction is finished, cooling to room temperature, centrifuging, washing with deionized water, drying in vacuum, and carrying out heat treatment for 1.5 hours at 120 ℃ in a nitrogen atmosphere to obtain the silver-zinc oxide-nano mullite ternary compound.
The XRD spectrum shows the crystal faces of (100), (002), (101) and (210) of the hexagonal wurtzite zinc oxide nanocrystal; the crystal faces of (111) and (200) of the face-centered cubic nano silver, and the crystal faces of (021), (230), (311), (321), (400), (421) and (002) of the mullite.
Synthesis example 2
Dispersing 2g of the silver-zinc oxide-nano mullite ternary complex in 60mL of absolute ethyl alcohol, and performing ultrasonic treatment to uniformly disperse the ternary complex. At 45 deg.C, 30mL of absolute ethanol solution in which 0.05g KH-550 is dissolved is added dropwise. After the dropwise addition, 10mL of ammonia water is added, and the reaction is continued for 6h under the condition of heat preservation. Centrifuging, washing with absolute ethyl alcohol, and vacuum drying to obtain the modified ternary complex.
Example 1
The nylon base cloth adopts 70D multiplied by 70D plain nylon 66 fabric, 190T, 85g/m 2. The coating agent was a single component polyether urethane (AH-1704, from New DAHUATAI, Anhui, Inc.). The specific operation method comprises the following steps:
(1) dissolving polyurethane in a proper amount of butanone, and uniformly mixing by ultrasonic waves to obtain a resin solution;
(2) directly coating the resin solution on nylon base cloth, and scraping by using a scraper to obtain a polyurethane coating fabric;
(3) and (2) adding the modified ternary complex obtained in the synthesis example 2 into the resin solution obtained in the step (1), wherein the weight ratio of AH-1704 to the modified ternary complex is 4: 1; and (3) scraping by using a scraper, pre-drying for 5min at the temperature of 50 ℃, and then baking for 1min at the temperature of 120 ℃ to obtain the antibacterial heat-preservation coating nylon fabric.
Comparative example 1
The same procedure as in example 1 was repeated except that the ternary complex of Synthesis example 1 was used in place of the modified ternary complex of Synthesis example 2.
Comparative example 2
The procedure of example 1 was followed except that nano-silica porous particles having an average particle size of 30nm (vk-sp 30, available from New Material Co., Ltd., Guangzhou, Crystal Ray) were used instead of nano-mullite.
Antibacterial performance and launderability test
According to the antibacterial test standard GB/T20944.3-2008, staphylococcus aureus (ATCC 6538) and escherichia coli (ATCC 8099) are used as test strains, and the antibacterial performance of the fabric is measured by adopting an oscillation method.
Two bacteria used in the test were first activated, as follows: taking out a proper amount of escherichia coli and staphylococcus aureus from the inclined plane respectively, putting the escherichia coli and staphylococcus aureus into a liquid culture medium for activation, then placing the culture solution into a constant temperature shaking table at 37 ℃, and culturing for 24 hours under the condition of a shaking speed of 150 rpm. Then, the fabric to be tested was cut into 2cm × 2cm pieces, 1g of each fabric sample was weighed, and sterilized by autoclaving with a flask containing 30mL of liquid medium and a glass tool. Finally, the bacterial solutions were inoculated into Erlenmeyer flasks containing liquid medium, respectively, and the sterilized fabric samples were placed therein and incubated for 18h in a constant temperature shaker (37 ℃, 150 rpm). After the end of the incubation, the bacterial solution in the medium was diluted to 1.1X 10 using PBS buffer8And (3) sucking 100 mu L of diluted liquid drop on a solid culture medium by CFU/mL, uniformly coating, then putting into a constant temperature and humidity incubator at 37 ℃ for culturing for 24h, and finally carrying out plate viable bacteria counting. And calculating the reduction percentage of bacteria of different fabrics, namely the initial antibacterial rate, and evaluating the antibacterial activity of the fabrics. Three times for each sample fabric and the average value was taken.
The wash resistance test method is as follows: and (2) pouring the laundry detergent and water into a beaker, wherein the content of the laundry detergent and water is 5g/L, putting a fabric sample to be washed into washing water, then mechanically stirring and washing for 5min, washing the stirred and washed fabric with clean water for 5min, drying at 70 ℃, and recording the cycle as one-time washing. And randomly shearing 2cm multiplied by 2cm of washed sample fabric from the washed fabric, and testing the antibacterial rate of the washed fabric by adopting an oscillation method according to an antibacterial test standard GB/T20944.3-2008.
See table 1 for results.
TABLE 1
Heat insulation and laundering durability test
The heat preservation performance is tested by adopting a heat-moisture resistance tester, and the test conditions are that the temperature is 25 +/-1 ℃ and the relative humidity is 66% +/-1%. The test method comprises the following steps: according to the national standard GB/T11048-. The unit of thermal resistance tested is (mk · m)2/w）。
The wash resistance test method was performed in the same manner as before.
See table 2 for results.
TABLE 2
| Thermal resistance (mk. m)2/w） | Heat resistance (mk. m) after 20 washes2/w） | |
| Example 1 | 38.1 | 35.4 |
| Comparative example 1 | 36.9 | 27.3 |
| Comparative example 2 | 17.4 | 15.8 |
Furthermore, it should be understood that various changes, substitutions, deletions, modifications or adjustments may be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents are also within the scope of the invention as defined in the appended claims.
Claims (6)
1. An antibacterial heat-preservation nylon fabric is provided with a heat-preservation antibacterial coating and is characterized in that the heat-preservation antibacterial coating contains a silver-zinc oxide-nano mullite ternary compound; the silver-zinc oxide-nano mullite ternary compound is a modified ternary compound modified by gamma-aminopropyltriethoxysilane KH-550, and the specific preparation method comprises the following steps:
dissolving 3.3g of zinc acetate in 120mL of absolute ethyl alcohol to obtain a zinc acetate solution; adding 4.4g of nano mullite into the zinc acetate solution; the average grain diameter of the nano mullite is 30nm, the specific surface area is 140m2Performing ultrasonic treatment to uniformly disperse the mixture to obtain zinc acetate-mullite dispersion liquid(ii) a Dissolving 0.5g of lithium hydroxide in 120mL of absolute ethyl alcohol under the ultrasonic action to obtain an alkali liquor; dropwise adding alkali liquor into the zinc acetate-nano mullite dispersion liquid at the speed of 2 drops per minute at the temperature of 5 ℃, continuously reacting for 2 hours after dropwise adding, and standing to obtain zinc oxide-nano mullite sol;
dissolving 0.55g of silver nitrate in 100mL of deionized water in nitrogen atmosphere, quickly adding 2g of p-aminophenol, 50mL of 1% sodium citrate solution and the zinc oxide-nano mullite sol, and carrying out reflux reaction for 1h at 90 ℃; after the reaction is finished, cooling to room temperature, centrifuging, washing with deionized water, drying in vacuum, and then carrying out heat treatment for 1.5h under the conditions of nitrogen atmosphere and 120 ℃ to obtain a silver-zinc oxide-nano mullite ternary compound;
dispersing 2g of the silver-zinc oxide-nano mullite ternary complex in 60mL of absolute ethyl alcohol, and performing ultrasonic treatment to uniformly disperse the ternary complex; dripping 30mL of absolute ethyl alcohol solution for dissolving 0.05g of KH-550 at the temperature of 45 ℃; after the dropwise addition, adding 10mL of ammonia water, and continuously reacting for 6 hours under the condition of heat preservation; centrifuging, washing with absolute ethyl alcohol, and vacuum drying to obtain the modified ternary complex.
2. The chinlon fabric according to claim 1, wherein the chinlon fabric is selected from chinlon 66.
3. The chinlon fabric according to claim 1, wherein the heat-preservation antibacterial coating uses one-component polyether polyurethane as a coating agent, and the silver-zinc oxide-nano mullite ternary complex is dispersed in an organic solution of the coating agent.
4. The nylon fabric according to claim 3, wherein the weight ratio of the single-component polyether urethane to the silver-zinc oxide-nano mullite ternary complex is (3-5): 1.
5. the nylon fabric of claim 1, wherein the heat-preservation antibacterial coating is obtained by a blade coating method.
6. A first-aid heat-insulating blanket, characterized in that the nylon fabric according to any one of claims 1-5 is used as an inner layer structure.
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