CN117264448A - Ceramic antibacterial heat-insulating coating - Google Patents
Ceramic antibacterial heat-insulating coating Download PDFInfo
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- CN117264448A CN117264448A CN202311186985.7A CN202311186985A CN117264448A CN 117264448 A CN117264448 A CN 117264448A CN 202311186985 A CN202311186985 A CN 202311186985A CN 117264448 A CN117264448 A CN 117264448A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 66
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title claims abstract description 43
- 239000011248 coating agent Substances 0.000 title claims abstract description 42
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000011787 zinc oxide Substances 0.000 claims abstract description 37
- 229920000642 polymer Polymers 0.000 claims abstract description 36
- 239000004113 Sepiolite Substances 0.000 claims abstract description 34
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 34
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 34
- 239000000839 emulsion Substances 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 24
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- -1 3-carboxyphenylboronic acid-1, 3-propylene glycol ester Chemical class 0.000 claims description 18
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical group [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 18
- 239000000654 additive Substances 0.000 claims description 17
- 230000000996 additive effect Effects 0.000 claims description 17
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 claims description 16
- 239000003995 emulsifying agent Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 16
- 238000009210 therapy by ultrasound Methods 0.000 claims description 16
- ZLJJDBSDZSZVTF-LXOQPCSCSA-N Trehalose-6,6'-dibehenate Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](COC(=O)CCCCCCCCCCCCCCCCCCCCC)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](COC(=O)CCCCCCCCCCCCCCCCCCCCC)O1 ZLJJDBSDZSZVTF-LXOQPCSCSA-N 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- OCXRVDQYXZSPBP-UHFFFAOYSA-N 2-(16-chlorohexadecyl)pyridine Chemical compound ClCCCCCCCCCCCCCCCCC1=CC=CC=N1 OCXRVDQYXZSPBP-UHFFFAOYSA-N 0.000 claims description 12
- MUHFRORXWCGZGE-KTKRTIGZSA-N 2-hydroxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCO MUHFRORXWCGZGE-KTKRTIGZSA-N 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 11
- 229940095098 glycol oleate Drugs 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 10
- 230000000845 anti-microbial effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 15
- 239000000843 powder Substances 0.000 abstract description 13
- 238000013329 compounding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 abstract description 3
- 239000002105 nanoparticle Substances 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract description 2
- 230000003115 biocidal effect Effects 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000002508 compound effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 14
- 230000001580 bacterial effect Effects 0.000 description 8
- 239000000523 sample Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 210000000170 cell membrane Anatomy 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000003904 phospholipids Chemical class 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- OBFSQMXGZIYMMN-UHFFFAOYSA-N 3-chloro-2-hexadecylpyridine Chemical group CCCCCCCCCCCCCCCCC1=NC=CC=C1Cl OBFSQMXGZIYMMN-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 108010052285 Membrane Proteins Proteins 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 239000013068 control sample Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 1
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- LJXQPZWIHJMPQQ-UHFFFAOYSA-N pyrimidin-2-amine Chemical group NC1=NC=CC=N1 LJXQPZWIHJMPQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application relates to a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol and film forming auxiliary agent. The application achieves the aim of antibiosis by using the nano zinc oxide of the zinc ion with the antibiosis function; the ceramic micro powder, the sepiolite and the nano zinc oxide are used as inorganic heat insulation materials for composite synergism, the ceramic part and the sepiolite are used as barrier materials, so that heat conduction can be inhibited, and meanwhile, the nano particles of the nano zinc oxide are further compounded with the ceramic micro powder and the sepiolite, so that the heat conductivity can be effectively reduced, and the heat insulation performance is improved; the polymer emulsion effectively improves the compounding effect of ceramic micro powder, sepiolite and nano zinc oxide through polymer components, and improves the heat insulation performance; the aluminum dihydrogen phosphate solution and the nano silicon dioxide dispersion liquid are blended to be used as a binder with high temperature resistance and better performance; under the compound effect of the components, the whole antibacterial and heat-insulating performance of the paint is more stable.
Description
Technical Field
The application relates to the technical field of ceramic coating, in particular to ceramic antibacterial heat-insulating coating.
Background
Ceramic coatings have since emerged, with their unique properties playing an increasingly important role in the coating sector; along with the continuous improvement of the living standard of people, the requirements of people on the quality of life sanitation are also higher and higher; the antibacterial coating industry is still in the development stage at present, and the application process of antibacterial materials in the coating is a common subject in front of the coating industry; the heat insulation performance is also an important aspect in kitchen ware applications.
In view of the above-mentioned related art, the inventors consider that some ceramic paints at present have difficulty in having both antibacterial and heat-insulating properties, and are difficult to meet the use requirements in practical applications, so there is still room for improvement.
Disclosure of Invention
In order to meet the requirements of ceramic coating on both antibacterial property and heat insulation property, the application provides the ceramic antibacterial heat insulation coating.
The application provides a ceramic antibacterial heat-insulating coating which adopts the following technical scheme:
the ceramic antibacterial heat-insulating coating comprises the following components in parts by weight:
10-12 parts of ceramic micropowder;
1-3 parts of sepiolite;
4-5 parts of nano zinc oxide;
15-20 parts of high polymer emulsion;
3-5 parts of aluminum dihydrogen phosphate solution;
30-40 parts of nano silicon dioxide dispersion liquid;
8-10 parts of absolute ethyl alcohol;
1-2 parts of film forming auxiliary agent.
By adopting the technical scheme, the nano zinc oxide has zinc ions with antibacterial effect, so that the antibacterial purpose is achieved; the ceramic micro powder, the sepiolite and the nano zinc oxide are used as inorganic heat insulation materials for composite synergism, the ceramic part and the sepiolite are used as barrier materials, so that heat conduction can be inhibited, and meanwhile, the nano particles of the nano zinc oxide are further compounded with the ceramic micro powder and the sepiolite, so that the heat conductivity can be effectively reduced, and the heat insulation performance is improved; the polymer emulsion effectively improves the compounding effect of ceramic micro powder, sepiolite and nano zinc oxide through polymer components, thereby improving the heat insulation performance; aluminum dihydrogen phosphate solution and nano silicon dioxide dispersion liquid are blended and compounded to be used as a high-temperature resistant adhesive with better performance; under the compounding action of the polymer emulsion, ceramic micro powder, nano zinc oxide, sepiolite, aluminum dihydrogen phosphate solution and nano silicon dioxide dispersion liquid, the whole antibacterial and heat-insulating properties of the coating are more stable.
Preferably, the preparation method of the polymer emulsion comprises the following steps:
10-15 parts of polyglycerol-10 isostearate, 6-9 parts of trehalose-6, 6' -dibehenate, 15-20 parts of propanol and 1-3 parts of catalyst are mixed and reflux reacted for 2-3 hours; adding 1-2 parts of 3-carboxyphenylboronic acid-1, 3-propylene glycol ester, continuously carrying out reflux reaction for 1-1.5h, and distilling to remove propanol; finally adding 2-3 parts of emulsifier for blending, and carrying out ultrasonic treatment for 8-10min at the ultrasonic power of 100-150W and the frequency of 20-30 kHz.
By adopting the technical scheme, on one hand, the long carbon chain high molecular compound is prepared by the transesterification of the polyglycerol-10 isostearate and the trehalose-6, 6' -dibehenate, and the long carbon chain high molecular compound and the nanometer zinc oxide are synergistic to be beneficial to enhancing the compatibility with a bacterial lipophilic phospholipid bilayer, and better destroying cell membranes and killing bacteria; and further, by adding 3-carboxyphenylboronic acid-1, 3-propylene glycol ester, a rigid benzene ring group with a boron atom on the side chain is introduced, and after being compounded with an inorganic component, the heat insulation performance is improved.
Preferably, the polyglycerol-10 isostearate is prepared from the following components in parts by weight: trehalose-6, 6' -dibehenate: 3-carboxyphenylboronic acid-1, 3-propanediol ester: emulsifier=6:4:1:1.
Preferably, the catalyst is sodium methoxide; the emulsifier is polyethylene glycol oleate.
Preferably, the composition further comprises 2-3 parts of chlorohexadecylpyridine and 0.4-0.6 part of sodium ethoxide in parts by weight.
By adopting the technical scheme, the chlorocetyl pyridine forms a weak ion complex to interfere with bacterial respiration through the interaction of cetyl pyridine ions and acid molecules of bacteria, so that the metabolism of the bacteria is influenced, and the antibacterial effect is achieved; the chlorohexadecylpyridine with the antibacterial active functional group is blended with the high polymer emulsion through the action of sodium ethoxide, the relative molecular weight is increased, the charge density is improved, the phospholipid in microbial cells and cell membranes and some membrane proteins are hydrolyzed to carry negative charges, the adsorption and combination of the bacterial surface membrane are facilitated through the increase of the relative molecular weight, and after the antibacterial coating is compounded with inorganic nano zinc oxide, a higher synergistic effect can be generated, and the antibacterial performance of the coating is effectively improved; in addition, the chlorohexadecylpyridine can be combined with the nano silicon dioxide dispersion liquid and assembled on the nano silicon dioxide particles, so that the antibacterial property and the heat resistance are improved.
Preferably, the preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: mixing ceramic micropowder, sepiolite, nanometer zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nanometer silicon dioxide dispersion, anhydrous ethanol and film forming auxiliary agent, and performing ultrasonic treatment at frequency of 40-50kHz for 15-20min at ultrasonic power of 100-150W.
Preferably, the coalescent is PPH-B.
In summary, the present application includes the following beneficial technical effects:
1. the nano zinc oxide has zinc ions with antibacterial effect, so that the antibacterial purpose is achieved; the ceramic micro powder, the sepiolite and the nano zinc oxide are used as inorganic heat insulation materials for composite synergism, the ceramic part and the sepiolite are used as barrier materials, so that heat conduction can be inhibited, and meanwhile, the nano particles of the nano zinc oxide are further compounded with the ceramic micro powder and the sepiolite, so that the heat conductivity can be effectively reduced, and the heat insulation performance is improved; the polymer emulsion forms organic coating in the inorganic component through the polymer component, so that the compounding effect of ceramic micro powder, sepiolite and nano zinc oxide is effectively improved, and the heat insulation performance is improved; aluminum dihydrogen phosphate solution and nano silicon dioxide dispersion liquid are blended and compounded to be used as a high-temperature resistant adhesive with better performance; under the compounding action of the polymer emulsion, ceramic micro powder, nano zinc oxide, sepiolite, aluminum dihydrogen phosphate solution and nano silicon dioxide dispersion liquid, the whole antibacterial and heat-insulating performance of the coating is more stable;
2. on one hand, the long carbon chain high molecular compound is prepared by performing transesterification on polyglycerol-10 isostearate and trehalose-6, 6' -dibehenate, and the long carbon chain high molecular compound and the nanometer zinc oxide are synergistic to be beneficial to enhancing the compatibility with a bacterial lipophilic phospholipid bilayer, so that cell membranes are better destroyed and bacteria are killed; further, by adding 3-carboxyphenylboronic acid-1, 3-propylene glycol ester, a rigid benzene ring group with a boron atom on the side chain is introduced, and after being compounded with inorganic components, the heat insulation performance is improved;
3. the chlorocetyl pyridine interferes with bacterial respiration through a weak ion complex formed by cetyl pyridine ions and bacteria, so that the metabolism of the bacteria is affected, and the antibacterial effect is achieved; the chlorohexadecylpyridine with the antibacterial active functional group is blended with the high polymer emulsion through the action of sodium ethoxide, the relative molecular weight is increased, the charge density is improved, the phospholipid in microbial cells and cell membranes and some membrane proteins are hydrolyzed to carry negative charges, the adsorption and combination of the bacterial surface membrane are facilitated through the increase of the relative molecular weight, and after the antibacterial coating is compounded with inorganic nano zinc oxide, a higher synergistic effect can be generated, and the antibacterial performance of the coating is effectively improved; in addition, the chlorohexadecylpyridine can be combined with the nano silicon dioxide dispersion liquid and assembled on the nano silicon dioxide particles, so that the antibacterial property and the heat resistance are improved.
Detailed Description
The present application is described in further detail below.
In the application, the ceramic micro powder is provided by a mineral product processing factory of Hengkei of Ming county, and has a specification of 1800 meshes; sepiolite is 800-mesh sepiolite powder provided by Shijia Hongsho mineral products limited company, and the product number is 2022-07; the nanometer zinc oxide is provided by Nanjing Baoket New Material Co., ltd., specification 20-30nm, model PZT-30; the nano silicon dioxide dispersion liquid is provided by Changzhou Co of novel carbon material with the particle diameter of 8-15nm and the viscosity of less than or equal to 10mpas; polyglycerol-10 isostearate was supplied by the commercial power supplier of the trade company, california, ca, CAS:133738-23-5; polyethylene glycol oleate is PEG400MO, cat# P874970, CAS, available from Shanghai Meilin Biochemical technologies Co., ltd: 9004-96-0; film forming additive PPH-B is provided by Guangzhou City adhesive products Co., ltd., has a solid content of 98.5% and a density of 1.045-1.065g/cm 3 。
The raw materials used in the following embodiments may be commercially available from ordinary sources unless otherwise specified.
Examples
Example 1
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol and film forming additive, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 10 parts of polyglycerol-10 isostearate, 6 parts of trehalose-6, 6' -dibehenate, 15 parts of propanol and 1 part of catalyst sodium methoxide are mixed and subjected to reflux reaction for 2 hours; then adding 1 part of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1h, and distilling to remove propanol; finally adding 2 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 8min at the ultrasonic power of 100W and the frequency of 20 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion, absolute ethanol and film forming additive are blended, and ultrasonic treatment is carried out for 15min at the frequency of 40kHz under the ultrasonic power of 100W.
Example 2
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol and film forming additive, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 15 parts of polyglycerol-10 isostearate, 9 parts of trehalose-6, 6' -dibehenate, 20 parts of propanol and 3 parts of catalyst sodium methoxide are mixed and subjected to reflux reaction for 3 hours; then adding 2 parts of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1.5h, and distilling to remove propanol; finally adding 3 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 10min at the ultrasonic power of 150W and the frequency of 30 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion, absolute ethanol and film forming additive are blended, and ultrasonic treatment is carried out for 20min at the frequency of 50kHz under the ultrasonic power of 150W.
Example 3
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol and film forming additive, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 13 parts of polyglycerol-10 isostearate, 8 parts of trehalose-6, 6' -dibehenate, 18 parts of propanol and 2 parts of catalyst sodium methoxide are mixed and subjected to reflux reaction for 2.5 hours; then adding 2 parts of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1.2 hours, and distilling to remove propanol; finally adding 3 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 9min at the ultrasonic power of 130W and the frequency of 25 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion, absolute ethanol and film forming additive are blended, and ultrasonic treatment is carried out for 18min at the frequency of 45kHz with the ultrasonic power of 130W.
Example 4
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol, film forming additive, chlorohexadecylpyridine and sodium ethoxide, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 10 parts of polyglycerol-10 isostearate, 6 parts of trehalose-6, 6' -dibehenate, 15 parts of propanol and 1 part of catalyst sodium methoxide are mixed and subjected to reflux reaction for 2 hours; then adding 1 part of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1h, and distilling to remove propanol; finally adding 2 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 8min at the ultrasonic power of 100W and the frequency of 20 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion, chlorohexadecylpyridine, sodium ethoxide, absolute ethyl alcohol and film forming auxiliary agent are blended, and ultrasonic treatment is carried out for 15min at the ultrasonic power of 100W and the frequency of 40 kHz.
Example 5
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol, film forming additive, chlorohexadecylpyridine and sodium ethoxide, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 15 parts of polyglycerol-10 isostearate, 9 parts of trehalose-6, 6' -dibehenate, 20 parts of propanol and 3 parts of catalyst sodium methoxide are mixed and subjected to reflux reaction for 3 hours; then adding 2 parts of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1.5h, and distilling to remove propanol; finally adding 3 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 10min at the ultrasonic power of 150W and the frequency of 30 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nanometer zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nanometer silicon dioxide dispersion, chlorohexadecylpyridine, sodium ethoxide, absolute ethyl alcohol and film forming auxiliary agent are blended, and ultrasonic treatment is carried out for 20min at the ultrasonic power of 150W and the frequency of 50 kHz.
Example 6
The embodiment discloses a ceramic antibacterial heat-insulating coating, which comprises the following components: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion liquid, absolute ethyl alcohol, film forming additive, chlorohexadecylpyridine and sodium ethoxide, wherein the film forming additive is PPH-B, and the content of each component is shown in the following table 1.
The preparation method of the polymer emulsion comprises the following steps: 13 parts of polyglycerol-10 isostearate, 8 parts of trehalose-6, 6' -dibehenate, 18 parts of propanol and 2 parts of catalyst sodium methoxide are mixed and subjected to reflux reaction for 2.5 hours; then adding 2 parts of 3-carboxyphenylboronic acid-1, 3-propanediol ester, continuously carrying out reflux reaction for 1.2 hours, and distilling to remove propanol; finally adding 3 parts of emulsifier polyethylene glycol oleate for blending, and carrying out ultrasonic treatment for 9min at the ultrasonic power of 130W and the frequency of 25 kHz.
The preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: ceramic micropowder, sepiolite, nano zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nano silicon dioxide dispersion, chlorohexadecylpyridine, sodium ethoxide, absolute ethyl alcohol and film forming auxiliary agent are blended, and ultrasonic treatment is carried out for 18min at the frequency of 45kHz with the ultrasonic power of 130W.
Example 7
The difference from example 4 is that cetylpyridinium chloride was replaced with 2-aminopyrimidine, and the contents of the respective components are shown in Table 1 below.
Example 8
The difference from example 1 is that the polyglycerol-10 isostearate: trehalose-6, 6' -dibehenate: 3-carboxyphenylboronic acid-1, 3-propanediol ester: emulsifier = 6:4:1:1; 12 parts of polyglycerol-10 isostearate, 8 parts of trehalose-6, 6' -dibehenate, 2 parts of 3-carboxyphenylboronic acid-1, 3-propanediol ester and 2 parts of emulsifier.
Example 9
The difference from example 1 is that the polyglycerol-10 isostearate is replaced by glycerol 1, 3-laurate-3-decanoate.
Example 10
The difference from example 9 is that trehalose-6, 6' -dibehenate is replaced by ethyl acetate.
Example 11
The difference from example 10 is that 3-carboxyphenylboronic acid-1, 3-propanediol ester is replaced by phyllosol caproate.
Example 12
The difference from example 1 is that the emulsifier polyethylene glycol oleate is replaced by emulsifier OP-10.
Example 13
The difference from example 1 is that the catalyst sodium methoxide is replaced by p-toluenesulfonic acid.
Example 14
The difference from example 1 is that the film forming aid is alcohol ester twelve.
Comparative example
Comparative example 1
The difference from example 1 is that the components of the coating include 10 parts of ceramic micropowder, 30 parts of nano silica dispersion, 8 parts of absolute ethanol and 1 part of film forming auxiliary agent.
Comparative example 2
The difference from example 1 is that sepiolite is replaced with kaolin.
Comparative example 3
The difference from example 1 is that nano zinc oxide is replaced with ceramic hollow glass beads.
Comparative example 4
The difference from example 1 is that the polymer emulsion is replaced by polyethylene glycol oleate.
Comparative example 5
The difference from example 1 is that the aluminum dihydrogen phosphate solution is replaced by polyvinyl alcohol.
TABLE 1 component content tables for examples 1 to 7
Performance test
(1) Antibacterial properties; at 10 # The steel sheet sample was tested at a size of 100 mm.times.50 mm.times.1 mm, and the test method for antibacterial property and the measurement of antibacterial effect were carried out on the antibacterial processed product according to JIS Z2801:2012, and the test strain was E.coli ATCC 8739, and the concentration of the inoculated strain liquid was 1.7X10 6 CFU/mL, the volume of the inoculation bacterial liquid is 0.2mL, and the surface area of the covering film is 1600mm 2 Adding 0.05% Tween 80 into the inoculation bacterial liquid; antibacterial ratio = [ (average viable count of 24h for control sample contact-average viable count of 24h for sample contact)/average viable count of 24h for control sample contact]100% and the results of the ceramic antimicrobial insulating coatings of the respective examples and comparative examples are shown in table 2 below.
(2) Heat insulation; at 10 # The steel sheet sample plate is tested, the size is 100mm multiplied by 50mm multiplied by 1mm, a 250W incandescent lamp irradiates the sample plate placed in a sealed box for 5 hours, and a temperature sensor and a temperature display are used for displaying the temperature of the bottom of the sample plate; sample plate without ceramic antibacterial heat-insulating coating is used as blankA control group; the heat insulation performance test was performed on the sample plates coated with the ceramic antibacterial heat insulation coating of each of the examples and comparative examples, and the test results are shown in table 2 below; the lower the temperature at the bottom of the template, the better the insulation.
Table 2 results of performance test of each of examples and comparative examples
| Antibacterial property | Temperature/. Degree.C | |
| Example 1 | 91.6 | 39.5 |
| Example 2 | 92.5 | 40.5 |
| Example 3 | 92.0 | 39 |
| Example 4 | 99.0 | 34 |
| Example 5 | 100.0 | 33 |
| Example 6 | 99.6 | 33.5 |
| Example 7 | 96.3 | 40.5 |
| Example 8 | 93.1 | 39 |
| Example 9 | 89.6 | 40 |
| Example 10 | 88.2 | 40 |
| Example 11 | 87.6 | 41 |
| Example 12 | 91.5 | 39.5 |
| Example 13 | 91.3 | 40 |
| Example 14 | 91.5 | 39.5 |
| Blank control group | / | 57 |
| Comparative example 1 | 90.9 | 42.5 |
| Comparative example 2 | 91.5 | 41.5 |
| Comparative example 3 | 64.3 | 40 |
| Comparative example 4 | 87.9 | 42.5 |
| Comparative example 5 | 91.3 | 40 |
The present embodiment is merely for explanation of the present application and does not limit the protection scope of the present application, and those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading the present specification, but are protected by patent laws only within the scope of claims of the present application.
Claims (7)
1. A ceramic antibacterial heat-insulating coating is characterized in that: comprises the following components in parts by weight:
10-12 parts of ceramic micropowder;
1-3 parts of sepiolite;
4-5 parts of nano zinc oxide;
15-20 parts of high polymer emulsion;
3-5 parts of aluminum dihydrogen phosphate solution;
30-40 parts of nano silicon dioxide dispersion liquid;
8-10 parts of absolute ethyl alcohol;
1-2 parts of flatting agent;
1-2 parts of film forming auxiliary agent.
2. The ceramic antibacterial heat-insulating coating according to claim 1, wherein: the preparation method of the polymer emulsion comprises the following steps:
10-15 parts of polyglycerol-10 isostearate, 6-9 parts of trehalose-6, 6' -dibehenate, 15-20 parts of propanol and 1-3 parts of catalyst are mixed and reflux reacted for 2-3 hours; adding 1-2 parts of 3-carboxyphenylboronic acid-1, 3-propylene glycol ester, continuously carrying out reflux reaction for 1-1.5h, and distilling to remove propanol; finally adding 2-3 parts of emulsifier for blending, and carrying out ultrasonic treatment for 8-10min at the ultrasonic power of 100-150W and the frequency of 20-30 kHz.
3. The ceramic antibacterial and heat-insulating coating according to claim 2, wherein: the polyglycerol-10 isostearate comprises the following components in parts by weight: trehalose-6, 6' -dibehenate: 3-carboxyphenylboronic acid-1, 3-propanediol ester: emulsifier=6:4:1:1.
4. A ceramic antimicrobial insulating coating according to claim 3, wherein: the catalyst is sodium methoxide; the emulsifier is polyethylene glycol oleate.
5. The ceramic antibacterial heat-insulating coating according to claim 1, wherein: the composition also comprises 2-3 parts of chlorohexadecylpyridine and 0.4-0.6 part of sodium ethoxide by weight.
6. The ceramic antibacterial heat-insulating coating according to claim 1, wherein: the preparation method of the ceramic antibacterial heat-insulating coating comprises the following steps: mixing ceramic micropowder, sepiolite, nanometer zinc oxide, polymer emulsion, aluminum dihydrogen phosphate solution, nanometer silicon dioxide dispersion, anhydrous ethanol and film forming auxiliary agent, and performing ultrasonic treatment at frequency of 40-50kHz for 15-20min at ultrasonic power of 100-150W.
7. The ceramic antibacterial heat-insulating coating according to claim 1, wherein: the film forming additive is PPH-B.
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