CN111019455A - Water-based environment-friendly indoor insect-proof and mildew-proof coating and preparation method thereof - Google Patents
Water-based environment-friendly indoor insect-proof and mildew-proof coating and preparation method thereof Download PDFInfo
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- CN111019455A CN111019455A CN201911182767.XA CN201911182767A CN111019455A CN 111019455 A CN111019455 A CN 111019455A CN 201911182767 A CN201911182767 A CN 201911182767A CN 111019455 A CN111019455 A CN 111019455A
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
- 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
- C09D7/80—Processes for incorporating ingredients
Abstract
The invention relates to the technical field of coatings, and particularly discloses a water-based environment-friendly indoor insect-proof and mildew-proof coating. The preparation method of the water-based environment-friendly indoor insect-proof and mildew-proof coating disclosed by the invention has the advantages that the addition sequence and the stirring condition of the raw materials are controlled, so that the raw materials are fully mixed, the adverse reaction is avoided, the prepared coating is good in storage stability, and the coating performance is excellent.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based environment-friendly indoor insect-proof and mildew-proof coating and a preparation method thereof.
Background
With the improvement of living standard, the requirements of people on living environment are higher and higher, especially indoor environment, and people begin to pay more attention to the influence of the indoor environment on health while meeting the comfort. Mosquitoes and molds are important factors influencing indoor environment and human health, and particularly in moving and dense places such as hospitals, schools, hotels and the like, the indoor environment needs to be disinfected regularly to reduce breeding of bacteria and mosquitoes. However, most of the commonly used disinfectants are chemicals, and are difficult to avoid damaging human health after being used frequently. At present, some related researches on insect-proof and mildew-proof functional coatings exist, and the corresponding effects are achieved by adding insect-proof agents or mildew-proof agents into the coatings, but the added insect-proof and mildew-proof agents are chemical drugs or natural plant extracts but have poor compatibility with a system, and the prevention effect is not lasting.
Disclosure of Invention
Aiming at the problems that the existing insect-proof and mildew-proof coating is not healthy enough or the control effect is not lasting enough and the like, the invention provides a water-based environment-friendly indoor insect-proof and mildew-proof coating and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an aqueous environment-friendly indoor insect-resistant and mildew-resistant coating comprises the following components in percentage by mass:
the stabilizer is Rhodoline FT-100, and the insect-proof and mildew-proof functional filler is prepared by the following method: adding the insect-proof and mildew-proof plant extract into a mixed solution of cyclodextrin and chitosan, stirring to obtain a precipitate, and drying to obtain the insect-proof functional filler.
The invention carries out inclusion modification on the insect-proof and mildew-proof substance extracted from natural plants by cyclodextrin and chitosan to obtain the insect-proof and mildew-proof functional filler, and the inventor finds that in a silicone-acrylic emulsion system, Rhodoline FT-100 can be used as a stabilizer of the functional filler, so that the functional filler has better stability in the silicone-acrylic emulsion system, the effective substance is ensured to be included to avoid volatilization loss, and the influence of acid, alkali or salt and the like in the extract on the performance of the coating is avoided. The cyclodextrin and the chitosan can enable the emulsion to generate proper pore diameter when contracting in the drying process after film coating, so that the drug effect of natural substances is slowly and durably released. Meanwhile, the functional filler coated by cyclodextrin and chitosan has good compatibility with a coating system, the storage stability of the coating is improved, and the chitosan can also improve the film forming property of the coating and improve the film coating property.
Preferably, the insect-proof and mildew-proof plant extract is prepared from the following components in a mass ratio of 1: 0.5-0.6: 0.7-0.8: 0.4-0.5: 0.4-0.5 parts of lavender, lysimachia foenum-graecum hance, kelp, murraya paniculata and geranium by decocting with water; the mass ratio of cyclodextrin to chitosan to water in the mixed solution is 1: 0.2-0.4: 1.5-1.7; the mass ratio of the insect-proof and mildew-proof plant extract to the mixed solution is 0.05-0.1: 1.
the lavender and the geranium are antibacterial, and simultaneously have a sedative and hypnotic effect, the lysimachia foenum-graecum hance, the kelp and the murraya paniculata are used for expelling insects, dredging collaterals and activating blood, the five natural plants are used together, so that the insect-proof and mildew-proof effects are excellent, the health-care effect on a human body is obvious, the five components are used together, the insect-proof and mildew-proof effects and the health-care effect are improved, and adverse effects can be eliminated, for example, the geranium can change the hormone level of the human body, the use of the geranium is not recommended for general pregnant women, but after the extracts are combined with the other components in a specific proportion, tests prove that the extracts do not influence the hormone level of the human body, and the indoor environment.
The preferred ratio of extract to cyclodextrin, chitosan and water ensures that the active substance is completely included.
Preferably, the coalescent is an alcohol ester twelve.
Preferably, the thickener is a cellulosic thickener.
Preferably, the dispersant is a sodium polycarboxylate dispersant.
Preferably, the wetting agent is a fatty alcohol alkoxylate type wetting agent.
Preferably, the defoaming agent is a silicone-polyether copolymer emulsion type or mineral oil type defoaming agent.
Preferably, the leveling agent is a polyurethane-based leveling agent.
The preferred auxiliary agents are beneficial to further improving the stability and the film coating performance of the coating.
The invention also provides a preparation method of the water-based environment-friendly indoor insect-proof and mildew-proof coating, which comprises the following steps: adding a thickening agent into water under stirring at 600r/min of 400-fluid, stirring for 15-20min to form a gel state, then sequentially adding a dispersing agent, a wetting agent and a defoaming agent, uniformly stirring, increasing the rotating speed to 900r/min of 700-fluid, sequentially adding titanium dioxide, diatomite, heavy calcium carbonate and an insect-proof functional filler, increasing the rotating speed to 1200r/min of 1000-fluid, dispersing at high speed until the fineness is less than or equal to 55 mu m, then adding an acrylic emulsion, a stabilizing agent, a film-forming assistant, a bactericide and a mildew preventive under 600r/min of 400-fluid, stirring for 2-3min, then adding a leveling agent, and stirring for 10-15 min.
According to the invention, by controlling the feeding sequence and the stirring condition of the raw materials, the raw materials are fully mixed, adverse reactions are avoided, and the prepared coating has good storage stability and excellent coating performance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
An aqueous environment-friendly indoor insect-resistant and mildew-resistant coating comprises the following components in percentage by mass:
the insect-proof and mildew-proof functional filler is prepared by the following method: taking the mass ratio of 1: 0.6: 0.8: 0.5: 0.5 part of lavender, lysimachia foenum-graecum hance, kelp, murraya paniculata and geranium are added with 2 times of water for decocting for 4 hours, dregs of a decoction are filtered, and the liquid medicine is prepared into freeze-dried powder. Cyclodextrin according to mass ratio: and (3) chitosan: water 1: 0.2: 1.5 preparing a mixed solution, adding the freeze-dried powder into the mixed solution according to the mass ratio of 0.1:1, stirring to obtain a precipitate, and drying to obtain the insect-proof functional filler.
The preparation method of the water-based environment-friendly indoor insect-proof and mildew-proof coating comprises the following steps: adding a thickening agent into water under stirring at 600r/min of 400-fluid, stirring for 15-20min to form a gel state, then sequentially adding a dispersing agent, a wetting agent and a defoaming agent, uniformly stirring, increasing the rotating speed to 900r/min of 700-fluid, sequentially adding titanium dioxide, diatomite, heavy calcium carbonate and an insect-proof functional filler, increasing the rotating speed to 1200r/min of 1000-fluid, dispersing at high speed until the fineness is less than or equal to 55 mu m, then adding an acrylic emulsion, a stabilizing agent, a film-forming assistant, a bactericide and a mildew preventive under 600r/min of 400-fluid, stirring for 2-3min, then adding a leveling agent, and stirring for 10-15 min.
Example 2
An aqueous environment-friendly indoor insect-resistant and mildew-resistant coating comprises the following components in percentage by mass:
the insect-proof and mildew-proof functional filler is prepared by the following method: taking the mass ratio of 1: 0.5: 0.7: 0.5: 0.5 part of lavender, lysimachia foenum-graecum hance, kelp, murraya paniculata and geranium are added with 2 times of water for decocting for 4 hours, dregs of a decoction are filtered, and the liquid medicine is prepared into freeze-dried powder. Cyclodextrin according to mass ratio: and (3) chitosan: water 1: 0.4: 1.7 preparing a mixed solution, adding the freeze-dried powder into the mixed solution according to the mass ratio of 0.08:1, stirring to obtain a precipitate, and drying to obtain the insect-proof functional filler.
The preparation method of the coating of this example is the same as that of example 1.
Example 3
An aqueous environment-friendly indoor insect-resistant and mildew-resistant coating comprises the following components in percentage by mass:
the insect-proof and mildew-proof functional filler is prepared by the following method: taking the mass ratio of 1: 0.5: 0.7: 0.4: 0.4 part of lavender, lysimachia foenum-graecum hance, kelp, murraya paniculata and geranium are added with 2 times of water for decocting for 4 hours, dregs of a decoction are filtered, and the liquid medicine is prepared into freeze-dried powder. Cyclodextrin according to mass ratio: and (3) chitosan: water 1: 0.2: 1.7 preparing a mixed solution, adding the freeze-dried powder into the mixed solution according to the mass ratio of 0.05:1, stirring to obtain a precipitate, and drying to obtain the insect-proof functional filler.
The preparation method of the coating of this example is the same as that of example 1.
In order to better illustrate the technical solution of the present invention, further comparison is made below by means of a comparative example and an example of the present invention.
Comparative example 1
The mixed solution in the preparation of the insect-proof and mildew-proof functional filler in the embodiment 1 is replaced by cyclodextrin with the same mass ratio as that of the mixed solution: the same procedure as in example 1 was repeated except that the mixed solution of water and water was changed to 1.2: 1.5.
Comparative example 2
The mixed solution in the preparation of the insect-proof and mildew-proof functional filler in the embodiment 1 is replaced by chitosan with the same mass ratio: the same procedure as in example 1 was repeated except that the mixed solution of water and water was changed to 1.2: 1.5.
The performance of the water-based environment-friendly indoor insect-proof and mildew-proof coating of the embodiments 1 to 3 and the comparative examples 1 to 2 is tested according to national standards GB/T9756-2009 national Standard for synthetic resin emulsion interior wall coating, GB18582-2008 Limited amount of harmful substances in interior wall coating for interior decoration and finishing materials, and HG/T3950-2007 antibacterial coating. The measured technical indexes are shown in the following table.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The water-based environment-friendly indoor insect-resistant and mildew-resistant coating is characterized by comprising the following components in percentage by mass:
the stabilizer is Rhodoline FT-100, and the insect-proof and mildew-proof functional filler is prepared by the following method: adding the insect-proof and mildew-proof plant extract into a mixed solution of cyclodextrin and chitosan, stirring to obtain a precipitate, and drying to obtain the insect-proof functional filler.
2. The water-based environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the insect and mildew resistant plant extract is prepared from the following components in a mass ratio of 1: 0.5-0.6: 0.7-0.8: 0.4-0.5: 0.4-0.5 parts of lavender, lysimachia foenum-graecum hance, kelp, murraya paniculata and geranium; the mass ratio of cyclodextrin to chitosan to water in the mixed solution is 1: 0.2-0.4: 1.5-1.7; the mass ratio of the insect-proof and mildew-proof plant extract to the mixed solution is 0.05-0.1: 1.
3. the aqueous environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the film forming aid is alcohol ester dodeca.
4. The aqueous environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the thickener is a cellulose thickener.
5. The water-based environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the dispersant is a sodium polycarboxylate dispersant.
6. The water-based environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the wetting agent is a fatty alcohol alkoxylate type wetting agent.
7. The aqueous environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the defoaming agent is a silicone-polyether copolymer emulsion type or mineral oil type defoaming agent.
8. The water-based environment-friendly indoor insect and mildew resistant coating as claimed in claim 1, wherein the leveling agent is a polyurethane leveling agent.
9. The preparation method of the water-based environment-friendly indoor insect-proof and mildew-proof coating as claimed in any one of claims 1-8, characterized in that under the stirring of 400-.
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| CN201911182767.XA CN111019455A (en) | 2019-11-27 | 2019-11-27 | Water-based environment-friendly indoor insect-proof and mildew-proof coating and preparation method thereof |
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| CN201911182767.XA CN111019455A (en) | 2019-11-27 | 2019-11-27 | Water-based environment-friendly indoor insect-proof and mildew-proof coating and preparation method thereof |
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Cited By (2)
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| CN113502101A (en) * | 2021-07-31 | 2021-10-15 | 百草边大生物科技(青岛)有限公司 | Preparation method of large-organism water-based paint |
| CN114503981A (en) * | 2022-01-07 | 2022-05-17 | 上海膜益信息科技有限公司 | Non-layering mildew preventive and preparation method and application thereof |
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