CN110591454A - Indoor antibacterial coating for high-humidity environment - Google Patents
Indoor antibacterial coating for high-humidity environment Download PDFInfo
- Publication number
- CN110591454A CN110591454A CN201910878906.6A CN201910878906A CN110591454A CN 110591454 A CN110591454 A CN 110591454A CN 201910878906 A CN201910878906 A CN 201910878906A CN 110591454 A CN110591454 A CN 110591454A
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- Prior art keywords
- modified chitosan
- humidity environment
- antibacterial coating
- indoor
- powder
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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
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
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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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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)
- Plant Pathology (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses an indoor antibacterial coating for a high-humidity environment, which comprises the following components: hydroxymethyl cellulose, aqueous polyurethane emulsion, natural calcium powder, sticky rice glue powder, tourmaline powder, modified chitosan, zinc oxide, titanium dioxide and distilled water. Compared with the traditional indoor antibacterial coating, the indoor antibacterial coating for the high-humidity environment is mainly different in that the doped silver is not used as an antibacterial agent, but the grafting modified chitosan microspheres are used as a main antibacterial raw material; the zinc oxide is added, so that the antibacterial effect of the indoor antibacterial coating can be further improved, and the raw materials except a small amount of modified chitosan and the aqueous polyurethane emulsion are all natural or mineral raw materials, so that the coating is environment-friendly and safe; tourmaline powder is added to release negative oxygen ions.
Description
Technical Field
The invention relates to the technical field of antibacterial coatings, in particular to an indoor antibacterial coating for a high-humidity environment.
Background
Large particles are suspended in the air in the haze weather, hundreds of atmospheric particles can directly enter and adhere to the upper and lower respiratory tracts and the lung lobes of a human body, and most of the atmospheric particles can be inhaled by the human body. Secondly, haze weather causes the stratum ultraviolet to weaken, makes the activity of germ in the air reinforcing easily, and fine particles can "take" bacterium, virus, comes to respiratory's depths, causes the infection. Particulate pollutants in haze days not only cause myocardial infarction, but also myocardial ischemia or injury, and are also easy to induce acute attack of cardiovascular diseases. Therefore, materials capable of adsorbing large particles in the air and killing bacteria are the key points of attention of scholars at home and abroad.
The existing coating on the market is an indoor antibacterial environment-friendly coating, silver is generally doped in the coating to serve as an antibacterial agent, and nano silver particles can directly enter thalli to be combined with oxygen metabolic enzyme, so that the thalli are suffocated to die, most of microbes such as bacteria, fungi, moulds, spores and the like which are contacted with the nano silver particles can be killed, but the coating cannot completely meet the requirement of environmental protection, and the price is higher. Especially, part of bathing places are built in basements, and are not ventilated for a long time and are not irradiated by sunlight, so that the indoor humidity reaches more than 70 percent R.H. for a long time, and bacteria are easy to breed. Therefore, the invention researches an indoor antibacterial coating suitable for a high-humidity environment.
Disclosure of Invention
Based on the technical problems in the prior art, the invention provides an indoor antibacterial coating for a high-humidity environment.
The technical scheme of the invention is as follows:
an indoor antibacterial coating for high humidity environment, comprising the following components: hydroxymethyl cellulose, aqueous polyurethane emulsion, natural calcium powder, sticky rice glue powder, tourmaline powder, modified chitosan, zinc oxide, titanium dioxide and distilled water.
Preferably, the indoor antibacterial coating for the high-humidity environment consists of the following components in percentage by weight: 0.5-1.5% of cellulose acetate, 2-5% of aqueous polyurethane emulsion, 15-25% of natural calcium powder, 20-30% of sticky rice glue powder, 6-10% of tourmaline powder, 0.2-0.5% of modified chitosan, 1-3% of zinc oxide, 12-18% of titanium dioxide and the balance of distilled water.
Preferably, the modified chitosan is a grafted modified chitosan microsphere.
Preferably, the graft modified chitosan microspheres are prepared by using chitosan as a raw material and modifying the chitosan by using 2-aminobenzothiazole after crosslinking, wherein the deacetylation degree of the chitosan is 80-95%; the viscosity is 50-800 mPas.
Further preferably, the graft modified chitosan microsphere has a structure shown in formula (I):
wherein n is 1, 2,3 … ….
The invention has the advantages that: compared with the traditional indoor antibacterial coating, the indoor antibacterial coating for the high-humidity environment is mainly different in that the doped silver is not used as an antibacterial agent, but the grafting modified chitosan microspheres are used as a main antibacterial raw material; the zinc oxide is added, so that the antibacterial effect of the indoor antibacterial coating can be further improved, and the raw materials except a small amount of modified chitosan and the aqueous polyurethane emulsion are all natural or mineral raw materials, so that the coating is environment-friendly and safe; tourmaline powder is added to release negative oxygen ions.
Detailed Description
Example 1
An indoor antibacterial coating for a high-humidity environment comprises the following components in percentage by weight: 1.2% of cellulose acetate, 3.5% of aqueous polyurethane emulsion, 18% of natural calcium powder, 28% of glutinous rice glue powder, 8% of tourmaline powder, 0.3% of modified chitosan, 2% of zinc oxide, 15% of titanium dioxide and the balance of distilled water.
The modified chitosan is a grafted modified chitosan microsphere.
The graft modified chitosan microsphere is obtained by using chitosan as a raw material and modifying the chitosan by using 2-aminobenzothiazole after crosslinking, wherein the deacetylation degree of the chitosan is 80-95%; the viscosity is 50-800 mPas.
The graft modified chitosan microsphere has a structure shown as a formula (I):
wherein n is 1, 2,3 … ….
The preparation method of the grafted and modified chitosan microsphere refers to the method disclosed in the Chinese invention patent CN 107082826A.
Example 2
An indoor antibacterial coating for a high-humidity environment comprises the following components in percentage by weight: 1.5% of cellulose acetate, 2% of aqueous polyurethane emulsion, 25% of natural calcium powder, 20% of glutinous rice glue powder, 10% of tourmaline powder, 0.2% of modified chitosan, 3% of zinc oxide, 12% of titanium dioxide and the balance of distilled water.
The modified chitosan is a grafted modified chitosan microsphere.
The graft modified chitosan microsphere is obtained by using chitosan as a raw material and modifying the chitosan by using 2-aminobenzothiazole after crosslinking, wherein the deacetylation degree of the chitosan is 80-95%; the viscosity is 50-800 mPas.
The graft modified chitosan microsphere has a structure shown as a formula (I):
wherein n is 1, 2,3 … ….
The preparation method of the grafted and modified chitosan microsphere refers to the method disclosed in the Chinese invention patent CN 107082826A.
Example 3
An indoor antibacterial coating for a high-humidity environment comprises the following components in percentage by weight: 0.5% of cellulose acetate, 5% of aqueous polyurethane emulsion, 15% of natural calcium powder, 30% of glutinous rice glue powder, 6% of tourmaline powder, 0.5% of modified chitosan, 1% of zinc oxide, 18% of titanium dioxide and the balance of distilled water.
The modified chitosan is a grafted modified chitosan microsphere.
The graft modified chitosan microsphere is obtained by using chitosan as a raw material and modifying the chitosan by using 2-aminobenzothiazole after crosslinking, wherein the deacetylation degree of the chitosan is 80-95%; the viscosity is 50-800 mPas.
The graft modified chitosan microsphere has a structure shown as a formula (I):
wherein n is 1, 2,3 … ….
The preparation method of the grafted and modified chitosan microsphere refers to the method disclosed in the Chinese invention patent CN 107082826A.
Comparative example 1
The zinc oxide in example 1 was removed, and the rest of the formulation and preparation method were unchanged.
Comparative example 2
The aqueous polyurethane emulsion in example 1 was removed, and the rest of the formulation and the preparation method were unchanged.
The samples of examples 1-3 and comparative examples 1-2 were tested (all anti-mold, anti-bacterial tests were conducted at 40-45 ℃ C., 75% R.H.) and the specific test data are shown in tables 1-3.
Table 1: a physical property detection result;
table 2: anti-mould performance;
table 3: antibacterial properties;
the test data show that the indoor antibacterial coating in the high-humidity environment has very good antibacterial and anti-mildew properties; the addition of zinc oxide is favorable for improving the antibacterial and mildew-resistant performance of the coating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. An indoor antibacterial coating for a high humidity environment, characterized by comprising the following components: hydroxymethyl cellulose, aqueous polyurethane emulsion, natural calcium powder, sticky rice glue powder, tourmaline powder, modified chitosan, zinc oxide, titanium dioxide and distilled water.
2. The indoor antibacterial coating material for high humidity environment according to claim 1, wherein the indoor antibacterial coating material for high humidity environment is composed of the following components by weight percent: 0.5-1.5% of hydroxymethyl cellulose, 15-25% of natural calcium powder, 20-30% of glutinous rice glue powder, 6-10% of tourmaline powder, 0.2-0.5% of modified chitosan, 1-3% of zinc oxide, 12-18% of titanium dioxide and the balance of distilled water.
3. An indoor antibacterial coating material for high humidity environment according to claim 1 or 2, wherein said modified chitosan is a graft-modified chitosan microsphere.
4. An indoor antibacterial coating for a high humidity environment as claimed in claim 3, wherein the graft-modified chitosan microspheres are obtained by using chitosan as a raw material, modifying the chitosan by using 2-aminobenzothiazole after crosslinking, and the degree of deacetylation of the chitosan is 80-95%; the viscosity is 50-800 mPas.
5. An indoor antibacterial coating for high humidity environment according to claim 3, wherein the graft-modified chitosan microspheres have a structure shown in formula (I):
wherein n is 1, 2,3 … ….
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878906.6A CN110591454A (en) | 2019-09-17 | 2019-09-17 | Indoor antibacterial coating for high-humidity environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878906.6A CN110591454A (en) | 2019-09-17 | 2019-09-17 | Indoor antibacterial coating for high-humidity environment |
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| CN110591454A true CN110591454A (en) | 2019-12-20 |
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| CN201910878906.6A Pending CN110591454A (en) | 2019-09-17 | 2019-09-17 | Indoor antibacterial coating for high-humidity environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303678A (en) * | 2020-03-02 | 2020-06-19 | 关圣睿 | Anion powder for decoration material and preparation method and application thereof |
| CN112778889A (en) * | 2020-12-02 | 2021-05-11 | 甘彤 | Process for preparing nano antibacterial mildew-resistant waterborne polyurethane coating |
| CN113913096A (en) * | 2021-09-24 | 2022-01-11 | 四川汇园宝新材料科技有限公司 | Antiviral coating and preparation method thereof |
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| CN105820642A (en) * | 2016-05-27 | 2016-08-03 | 赵定江 | Wall surface putty adsorbing formaldehyde and continuously releasing anions and preparation method thereof |
| CN105860701A (en) * | 2016-04-18 | 2016-08-17 | 孙小力 | Anion-aqueous interior-wall paint and preparing method |
| CN107082826A (en) * | 2017-03-20 | 2017-08-22 | 浙江工商大学 | A kind of graft modification chitosan microball and its preparation method and application |
| CN108329765A (en) * | 2018-01-23 | 2018-07-27 | 合肥梵腾环保科技有限公司 | A kind of environment friendly emulsion paint and preparation method thereof |
| CN108485386A (en) * | 2018-04-19 | 2018-09-04 | 吉林建筑大学 | A kind of green inner wall suitable for Condom adsorbs coating |
| CN109233448A (en) * | 2018-08-03 | 2019-01-18 | 李远奖 | It is a kind of to have effects that durable antibiotic, quick formaldehyde reduced environmentally friendly shell powder paint |
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2019
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Patent Citations (6)
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| CN105820642A (en) * | 2016-05-27 | 2016-08-03 | 赵定江 | Wall surface putty adsorbing formaldehyde and continuously releasing anions and preparation method thereof |
| CN107082826A (en) * | 2017-03-20 | 2017-08-22 | 浙江工商大学 | A kind of graft modification chitosan microball and its preparation method and application |
| CN108329765A (en) * | 2018-01-23 | 2018-07-27 | 合肥梵腾环保科技有限公司 | A kind of environment friendly emulsion paint and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303678A (en) * | 2020-03-02 | 2020-06-19 | 关圣睿 | Anion powder for decoration material and preparation method and application thereof |
| CN112778889A (en) * | 2020-12-02 | 2021-05-11 | 甘彤 | Process for preparing nano antibacterial mildew-resistant waterborne polyurethane coating |
| CN113913096A (en) * | 2021-09-24 | 2022-01-11 | 四川汇园宝新材料科技有限公司 | Antiviral coating and preparation method thereof |
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Application publication date: 20191220 |
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