CN118271921A - Negative ion furniture paint and preparation and use methods thereof - Google Patents
Negative ion furniture paint and preparation and use methods thereof Download PDFInfo
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- CN118271921A CN118271921A CN202410703008.8A CN202410703008A CN118271921A CN 118271921 A CN118271921 A CN 118271921A CN 202410703008 A CN202410703008 A CN 202410703008A CN 118271921 A CN118271921 A CN 118271921A
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- 239000003973 paint Substances 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 39
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- JOOXCMJARBKPKM-UHFFFAOYSA-N 4-oxopentanoic acid Chemical compound CC(=O)CCC(O)=O JOOXCMJARBKPKM-UHFFFAOYSA-N 0.000 claims abstract description 44
- ZEYHEAKUIGZSGI-UHFFFAOYSA-N 4-methoxybenzoic acid Chemical compound COC1=CC=C(C(O)=O)C=C1 ZEYHEAKUIGZSGI-UHFFFAOYSA-N 0.000 claims abstract description 37
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- -1 dodecanol ester Chemical class 0.000 claims abstract description 34
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 27
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 24
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229940040102 levulinic acid Drugs 0.000 claims abstract description 22
- RGUVUPQQFXCJFC-UHFFFAOYSA-N n-hydroxyoctanamide Chemical compound CCCCCCCC(=O)NO RGUVUPQQFXCJFC-UHFFFAOYSA-N 0.000 claims abstract description 22
- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 22
- 238000000855 fermentation Methods 0.000 claims abstract description 18
- 230000004151 fermentation Effects 0.000 claims abstract description 18
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 17
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 17
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 17
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 17
- 229940105902 mint extract Drugs 0.000 claims abstract description 17
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 17
- 239000013530 defoamer Substances 0.000 claims abstract description 16
- 229910000484 niobium oxide Inorganic materials 0.000 claims abstract description 13
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 241000830536 Tripterygium wilfordii Species 0.000 claims description 43
- 235000015398 thunder god vine Nutrition 0.000 claims description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 30
- 238000002386 leaching Methods 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 28
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 27
- 230000001954 sterilising effect Effects 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 21
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 20
- 238000010298 pulverizing process Methods 0.000 claims description 19
- 108090000790 Enzymes Proteins 0.000 claims description 18
- 102000004190 Enzymes Human genes 0.000 claims description 18
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- 239000007788 liquid Substances 0.000 claims description 18
- 239000004922 lacquer Substances 0.000 claims description 17
- 150000001450 anions Chemical class 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
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- 239000012528 membrane Substances 0.000 claims description 14
- 239000004408 titanium dioxide Substances 0.000 claims description 14
- 238000000108 ultra-filtration Methods 0.000 claims description 14
- 239000000706 filtrate Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 240000006024 Lactobacillus plantarum Species 0.000 claims description 11
- 235000013965 Lactobacillus plantarum Nutrition 0.000 claims description 11
- 241000192130 Leuconostoc mesenteroides Species 0.000 claims description 11
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- 108090000787 Subtilisin Proteins 0.000 claims description 10
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- 108010002430 hemicellulase Proteins 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
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- 235000020737 peppermint extract Nutrition 0.000 claims description 9
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- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 7
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- 239000010977 jade Substances 0.000 claims description 7
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- 235000020763 thunder god vine extract Nutrition 0.000 claims description 7
- 239000011032 tourmaline Substances 0.000 claims description 7
- 229940070527 tourmaline Drugs 0.000 claims description 7
- 229910052613 tourmaline Inorganic materials 0.000 claims description 7
- 235000006679 Mentha X verticillata Nutrition 0.000 claims description 6
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- 235000001636 Mentha x rotundifolia Nutrition 0.000 claims description 6
- 230000009849 deactivation Effects 0.000 claims description 4
- 239000001038 titanium pigment Substances 0.000 claims description 2
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention relates to negative ion furniture paint and a preparation and application method thereof, belonging to the technical field of paint, wherein negative ion furniture paint comprises negative ion powder, molecular resonance water, a tripterygium extract, a mint extract, a marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid, aqueous acrylic emulsion, dodecanol ester, talcum powder, titanium white, sodium dodecyl benzene sulfonate, aqueous defoamer, cetyl hydroxyethyl cellulose and the like, wherein niobium oxide and lanthanum oxide synergistic components are added in the negative ion powder, and the tripterygium extract and the marigold extract contain enzymolysis fermentation products; under the condition of ensuring the basic paint performance, the components are matched for use, the negative ion generation amount is further improved to more than 3000 per second cm 2, the paint has excellent insecticidal, bactericidal and bacteriostatic effects, and good insect prevention, mildew prevention, corrosion prevention and air purification effects are achieved, and the paint material is nontoxic, harmless, safe and environment-friendly.
Description
Technical Field
The invention belongs to the technical field of paint, and particularly relates to negative ion furniture paint and a preparation and use method thereof.
Background
The negative ion paint is a novel environment-friendly paint, has the functions of decoration and protection, and can purify air and improve indoor environment. The negative ions are tiny particles with negative charges, which can adsorb bacteria, formaldehyde, benzene and other harmful substances in the air, and form larger particles after being combined or reacted, so as to purify the air.
Most of the negative ion paint adopts water as a solvent, does not contain harmful substances, does not generate pungent smell, does not harm human bodies, and is more environment-friendly and pollution-free compared with the traditional paint. The negative ion paint also has good durability, is not easy to fade and fall off powder, and can keep the long-term beautiful appearance of the wall surface.
At present, most of negative ion paint is used as wall paint, stone paint and floor paint, and is less in use of house paint mainly because wooden furniture has higher requirements on insect prevention, mildew prevention and corrosion prevention, and the negative ion paint using water as a solvent has poorer efficacy in insect prevention, mildew prevention, corrosion prevention and other aspects compared with harmful solvent paint; in addition, the negative ion paint on the market has good and bad effect on purifying air, and the effect on purifying air is general, and bacteria adsorption is limited or even weak. Therefore, it is desired to improve the insect-proof, mildew-proof and corrosion-proof effects of the negative ion furniture paint, obtain excellent air purification effects, achieve safety, environmental protection and practicability, and further require continuous technical development and improvement.
Disclosure of Invention
The paint has the advantages of no ideal effects on insect prevention, mildew prevention, corrosion prevention and air purification effects, narrow application range and no good use effect on furniture. The invention provides negative ion furniture paint and a preparation and use method thereof, wherein the negative ion furniture paint comprises negative ion powder, molecular resonance water, tripterygium wilfordii extract, peppermint extract, marigold extract, levulinic acid, anisonic acid, octanoyl hydroxamic acid and the like, and under the condition of ensuring the basic paint performance, the negative ion production is further improved, and the effects of disinsection, sterilization and bacteriostasis are achieved, so that good insect prevention, mildew prevention, corrosion prevention and air purification effects are achieved, and the paint material is nontoxic, harmless, safe and environment-friendly. The specific technical scheme is as follows:
The negative ion furniture paint comprises the following raw materials in parts by weight: 2 to 8 parts of anion powder, 5 to 15 parts of molecular resonance water, 0.05 to 0.1 part of tripterygium wilfordii extract, 0.05 to 0.1 part of mint extract, 0.05 to 0.1 part of marigold extract, 0.002 to 0.006 part of levulinic acid, 0.002 to 0.006 part of anisic acid, 0.002 to 0.006 part of octanoyl hydroxamic acid, 5 to 10 parts of aqueous acrylic emulsion, 0.5 to 1 part of dodecanol ester, 3 to 5 parts of talcum powder, 3 to 5 parts of titanium pigment, 0.01 to 0.03 part of sodium dodecyl benzene sulfonate, 0.005 to 0.02 part of aqueous defoamer and 0.05 to 0.2 part of cetyl hydroxyethyl cellulose.
In the technical scheme, the negative ion powder comprises, by mass, 15-20 parts of tourmaline, 15-20 parts of neodymium oxide, 5-10 parts of niobium oxide, 5-10 parts of lanthanum oxide, 30-35 parts of silicon dioxide and 5-8 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
In the above technical scheme, the preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding water 10-12 times of radix Tripterygii Wilfordii, boiling for 30-40 min, cooling, and filtering to obtain residue and filtrate; dispersing filter residues in water with the mass of 4-6 times of that of the filter residues, adding lactobacillus plantarum and subtilisin, carrying out fermentation enzymolysis for 16-18 hours at the temperature of 35-36 ℃, heating, sterilizing, inactivating enzyme, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the concentration below 50kDa with the filtrate, concentrating, drying, and crushing to obtain the tripterygium wilfordii extract.
The adding amount of the lactobacillus plantarum is 0.5-3% of the mass of the tripterygium wilfordii; the addition amount of the subtilisin is 0.5-2% of the mass of the tripterygium wilfordii; the temperature of the heating sterilization enzyme deactivation is 90-100 ℃ and the time is 30-50 min.
In the technical scheme, the preparation method of the mint extract comprises the following steps: crushing mint leaves, percolating with ethanol with the mass of 6-10 times of that of the mint leaves at the speed of 2-5 mL/min, percolating with deionized water with the mass of 6-10 times of that of the mint leaves at the speed of 2-5 mL/min to obtain a leaching solution, and evaporating and concentrating the leaching solution to 8-12% of the volume to obtain the mint extract.
In the technical scheme, the preparation method of the marigold extract comprises the following steps of: pulverizing marigold, percolating with ethanol 6-10 times of the marigold at a speed of 2-5 mL/min, percolating with deionized water 6-10 times of the marigold at a speed of 2-5 mL/min to obtain a leachate and a leaching residue; dispersing the leaching residue in water with the mass of 6-8 times that of the leaching residue, adding citric acid to adjust the pH to 4.2-5.2, adding hemicellulase and leuconostoc mesenteroides, carrying out enzymolysis and fermentation at 35-40 ℃ for 12-16 hours, heating, sterilizing, inactivating enzyme, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the leaching solution with the concentration of less than 50kDa, drying, and crushing to obtain the marigold extract.
The addition amount of the hemicellulase is 0.5-2% of the mass of the marigold, and the addition amount of the leuconostoc mesenteroides is 1-3% of the mass of the marigold; the temperature of the heating sterilization enzyme deactivation is 90-100 ℃ and the time is 30-50 min.
In the technical scheme, the solid content of the aqueous acrylic emulsion is 20-22 wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
S1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3000 e -/cm3 -4000 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Compared with the prior art, the negative ion furniture paint and the preparation and use methods thereof have the beneficial effects that:
1. The negative ion furniture paint comprises negative ion powder, molecular resonance water, tripterygium wilfordii extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid, aqueous acrylic emulsion, dodecanol ester, talcum powder, titanium dioxide, sodium dodecyl benzene sulfonate, aqueous defoamer, cetyl hydroxyethyl cellulose and the like, and under the condition of ensuring the basic paint performance, the negative ion production is further improved, and the effects of disinsection, sterilization and bacteriostasis are achieved, so that the paint has good effects of insect prevention, mildew prevention, corrosion prevention and air purification, and the paint material is nontoxic, harmless, safe and environment-friendly.
2. Niobium oxide and lanthanum oxide are added into the negative ion powder with the thickness of 0.005 mu m-2 mu m, and the niobium oxide and the lanthanum oxide are matched with other components for use, so that the efficacy of the negative ion powder can be greatly improved.
3. The molecular resonance water has negative ion synergistic effect, and the negative ion powder and the molecular resonance water are matched for use, so that the air negative ion induction amount can be greatly improved after the paint is coated and dried, and the air can be efficiently and durably purified.
4. The tripterygium wilfordii extract contains a fermentation enzymolysis product of lactobacillus plantarum and subtilisin, also contains a water-soluble substance, has good insecticidal and bacteriostatic effects, can obtain good insecticidal property by adding a small amount of ingredients, and is an edible plant source ingredient and safe and harmless to human bodies.
5. The marigold extract contains micromolecular enzymolysis fermentation products, has the auxiliary effects of killing and inhibiting bacteria, and also contains aromatic substances, can provide fragrance for paint, and comprises the concentrated fragrance of the marigold and the fragrance generated by fermenting citric acid by leuconostoc mesenteroides, so that the marigold extract is attractive and the use feeling of the paint is improved.
6. The levulinic acid can inhibit bacterial growth, the anisoic acid can inhibit fungal growth, the octanoyl hydroxamic acid can inhibit bacteria and fungi, the addition of a small amount of levulinic acid, anisoic acid and octanoyl hydroxamic acid does not affect the basic performance of the whole paint system, and the levulinic acid, the anisoic acid, the octanoyl hydroxamic acid, the tripterygium wilfordii extract and the marigold extract are matched for use, so that the synergistic effect is achieved, and more excellent mildew-proof and corrosion-proof effects can be achieved.
7. The dodecanol ester can promote the film formation of the aqueous acrylic emulsion; talcum powder has leveling effect; titanium dioxide has weather resistance and is also a colorant; the sodium dodecyl benzene sulfonate emulsifier can promote the compatibility of all components; cetyl hydroxyethyl cellulose has a thickening effect.
8. In the preparation process of the tripterygium wilfordii extract, the tripterygium wilfordii is boiled in water, and water soluble matters are separated and extracted, so that the sterilization performance of filter residues can be reduced, further the smooth fermentation of lactobacillus plantarum is protected, and the fermentation yield is improved. After enzymolysis and fermentation, the obtained liquid with the molecular weight of less than 50kDa has the effects of synergism, insecticidal improvement and sterilization.
9. The herba Menthae extract has air freshening and antibacterial effects.
10. The leaching residue obtained by percolating ethanol and water is adopted, the pH value is regulated by citric acid, and the hemicellulase and leuconostoc mesenteroides are adopted for enzymolysis and fermentation, so that the obtained liquid with the molecular weight of less than 50kDa has good aroma enhancement effect, and the liquid has good insecticidal and antibacterial properties when being matched with leaching liquid, and has good fragrance and improves the use experience.
Detailed Description
The invention will be further illustrated with reference to specific examples, but the invention is not limited to these examples.
Example 1
The negative ion furniture paint comprises the following raw materials in parts by weight: 5 parts of anion powder, 10 parts of molecular resonance water, 0.08 part of tripterygium wilfordii extract, 0.08 part of mint extract, 0.08 part of marigold extract, 0.005 part of levulinic acid, 0.004 part of anisic acid, 0.004 part of octanoyl hydroxamic acid, 8 parts of aqueous acrylic emulsion, 0.8 part of dodecanol ester, 4 parts of talcum powder, 4 parts of titanium dioxide, 0.02 part of sodium dodecyl benzene sulfonate, 0.01 part of aqueous defoamer and 0.1 part of cetyl hydroxyethyl cellulose.
Wherein the negative ion powder comprises the following components in parts by mass of 16 parts of tourmaline, 16 parts of neodymium oxide, 6 parts of niobium oxide, 6 parts of lanthanum oxide, 32 parts of silicon dioxide and 7 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
The preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding 11 times of water, boiling for 35min, cooling, and filtering to obtain residue and filtrate; dispersing the filter residue in water with the mass of 5 times of that of the filter residue, adding lactobacillus plantarum with the mass of 2% of the tripterygium wilfordii and subtilisin with the mass of 1% of the tripterygium wilfordii, carrying out fermentation enzymolysis for 17 hours at 35.5 ℃, sterilizing and inactivating enzymes for 40 minutes at the temperature of 95 ℃, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the mass of 50kDa below, concentrating, drying and crushing to obtain the tripterygium wilfordii extract.
Wherein, the preparation method of the mint extract comprises the following steps: pulverizing folium Menthae, percolating with ethanol 8 times of folium Menthae at 3mL/min, percolating with deionized water 8 times of folium Menthae at 3mL/min to obtain extract, and concentrating the extract by evaporation to 10% volume to obtain herba Menthae extract.
Wherein, the preparation method of the marigold extract comprises the following steps: pulverizing flos Tagetis Erectae, percolating with ethanol 8 times of flos Tagetis Erectae at 3mL/min, percolating with deionized water 8 times of flos Tagetis Erectae at 3mL/min to obtain extract and residue; dispersing the leaching residue in water with the mass of 7 times of that of the leaching residue, adding citric acid to adjust the pH to 4.8, adding hemicellulase with the mass of 1% of marigold and leuconostoc mesenteroides with the mass of 2% of marigold, carrying out enzymolysis and fermentation for 14h at 37 ℃, heating to 95 ℃, sterilizing and inactivating enzymes for 40min, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the leaching solution with the concentration below 50kDa, drying and crushing to obtain the marigold extract.
Wherein the solid content of the aqueous acrylic emulsion is 21wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
S1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3264 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Example 2
The negative ion furniture paint comprises the following raw materials in parts by weight: 2 parts of anion powder, 5 parts of molecular resonance water, 0.05 part of tripterygium wilfordii extract, 0.05 part of mint extract, 0.05 part of marigold extract, 0.002 part of levulinic acid, 0.002 part of anisic acid, 0.002 part of octanoyl hydroxamic acid, 5 parts of aqueous acrylic emulsion, 0.5 part of dodecanol ester, 3 parts of talcum powder, 3 parts of titanium dioxide, 0.01 part of sodium dodecyl benzene sulfonate, 0.005 part of aqueous defoamer and 0.05 part of cetyl hydroxyethyl cellulose.
Wherein the negative ion powder comprises the following components in parts by mass of 15 parts of tourmaline, 15 parts of neodymium oxide, 5 parts of niobium oxide, 5 parts of lanthanum oxide, 30 parts of silicon dioxide and 5 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
The preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding 10 times of water, boiling for 30min, cooling, and filtering to obtain residue and filtrate; dispersing the filter residue in water 4 times of the filter residue, adding lactobacillus plantarum with the mass of 0.5% of the tripterygium wilfordii and subtilisin with the mass of 0.5% of the tripterygium wilfordii, fermenting and hydrolyzing for 16 hours at 35 ℃, sterilizing and inactivating enzymes for 30 minutes at the temperature of 90 ℃, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the filtrate with the concentration below 50kDa, drying and crushing to obtain the tripterygium wilfordii extract.
Wherein, the preparation method of the mint extract comprises the following steps: pulverizing folium Menthae, percolating with 6 times of ethanol at 2mL/min, percolating with 6 times of deionized water at 2mL/min to obtain extract, and concentrating the extract by evaporation to 8% volume to obtain herba Menthae extract.
Wherein, the preparation method of the marigold extract comprises the following steps: pulverizing flos Tagetis Erectae, percolating with 6 times of ethanol at 2mL/min, percolating with 6 times of deionized water at 2mL/min to obtain extract and residue; dispersing the leaching residue in water with the mass of 6 times of that of the leaching residue, adding citric acid to adjust the pH to 4.2, adding hemicellulase with the mass of 0.5% of marigold and leuconostoc mesenteroides with the mass of 1% of marigold, carrying out enzymolysis and fermentation for 12 hours at 35 ℃, heating to 90 ℃, sterilizing and inactivating enzymes for 30 minutes, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the leaching solution with the concentration below 50kDa, drying and crushing to obtain the marigold extract.
Wherein the solid content of the aqueous acrylic emulsion is 20wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
S1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3000 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Example 3
The negative ion furniture paint comprises the following raw materials in parts by weight: 3 parts of anion powder, 6 parts of molecular resonance water, 0.06 part of tripterygium extract, 0.06 part of mint extract, 0.06 part of marigold extract, 0.003 part of levulinic acid, 0.003 part of anisic acid, 0.003 part of octanoyl hydroxamic acid, 6 parts of aqueous acrylic emulsion, 0.6 part of dodecanol ester, 3.5 parts of talcum powder, 3.5 parts of titanium dioxide, 0.01 part of sodium dodecyl benzene sulfonate, 0.006 part of aqueous defoamer and 0.08 part of cetyl hydroxyethyl cellulose.
Wherein the negative ion powder comprises the following components in parts by mass of 16 parts of tourmaline, 16 parts of neodymium oxide, 6 parts of niobium oxide, 6 parts of lanthanum oxide, 31 parts of silicon dioxide and 6 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
The preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding 10.5 times of water, boiling for 32min, cooling, and filtering to obtain residue and filtrate; dispersing the filter residue in water 4.5 times of the filter residue, adding lactobacillus plantarum 1% of the weight of the tripterygium wilfordii and subtilisin 0.8% of the weight of the tripterygium wilfordii, fermenting and hydrolyzing at 35.2 ℃ for 16.5 hours, sterilizing and inactivating enzymes at 92 ℃ for 35 minutes, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the filtrate below 50kDa, concentrating, drying and crushing to obtain the tripterygium wilfordii extract.
Wherein, the preparation method of the mint extract comprises the following steps: pulverizing folium Menthae, percolating with 7 times of ethanol at a rate of 2.5mL/min, percolating with 6.5 times of deionized water at a rate of 2.5mL/min to obtain extract, and concentrating the extract by evaporation to 9% of the volume to obtain herba Menthae extract.
Wherein, the preparation method of the marigold extract comprises the following steps: pulverizing flos Tagetis Erectae, percolating with 7 times of ethanol at 2.5mL/min, percolating with 7 times of deionized water at 2.5mL/min to obtain extract and residue; dispersing the leaching residue in water with the mass of 6.5 times of that of the leaching residue, adding citric acid to adjust the pH to 4.5, adding hemicellulase with the mass of 0.8% of marigold and leuconostoc mesenteroides with the mass of 1.2% of marigold, carrying out enzymolysis and fermentation for 13h at 36 ℃, sterilizing and inactivating enzymes for 35min at 92 ℃ and heating, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the leaching solution with the concentration of less than 50kDa, drying and crushing to obtain the marigold extract.
Wherein the solid content of the aqueous acrylic emulsion is 20wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
s1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3058 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Example 4
The negative ion furniture paint comprises the following raw materials in parts by weight: 7 parts of anion powder, 12 parts of molecular resonance water, 0.08 part of tripterygium extract, 0.08 part of mint extract, 0.08 part of marigold extract, 0.005 part of levulinic acid, 0.005 part of anisic acid, 0.005 part of octanoyl hydroxamic acid, 8 parts of aqueous acrylic emulsion, 0.8 part of dodecanol ester, 4.5 parts of talcum powder, 4.5 parts of titanium dioxide, 0.02 part of sodium dodecyl benzene sulfonate, 0.015 part of aqueous defoamer and 0.12 part of cetyl hydroxyethyl cellulose.
Wherein the negative ion powder comprises, by mass, 18 parts of tourmaline, 18 parts of neodymium oxide, 8 parts of niobium oxide, 9 parts of lanthanum oxide, 34 parts of silicon dioxide and 6 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
The preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding water 11 times of the weight of radix Tripterygii Wilfordii, boiling for 38min, cooling, and filtering to obtain residue and filtrate; dispersing the filter residue in water with the mass of 5.5 times of that of the filter residue, adding lactobacillus plantarum with the mass of 2.5% of that of the tripterygium wilfordii and subtilisin with the mass of 1.5% of that of the tripterygium wilfordii, fermenting and hydrolyzing for 17.5 hours at the temperature of 35.8 ℃, sterilizing and inactivating enzyme for 45 minutes at the temperature of 98 ℃, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the filtrate with the mass of less than 50kDa, concentrating, drying and crushing to obtain the tripterygium wilfordii extract.
Wherein, the preparation method of the mint extract comprises the following steps: pulverizing folium Menthae, percolating with 9 times of ethanol at 4mL/min, percolating with 9 times of deionized water at 4mL/min to obtain extract, and evaporating and concentrating the extract to 11% volume to obtain herba Menthae extract.
Wherein, the preparation method of the marigold extract comprises the following steps: pulverizing flos Tagetis Erectae, percolating with 9 times of ethanol at 4mL/min, percolating with 9 times of deionized water at 4mL/min to obtain extract and residue; dispersing the leaching residue in water with the mass of 7 times of that of the leaching residue, adding citric acid to adjust the pH to 5.0, adding hemicellulase with the mass of 1.5% of marigold and leuconostoc mesenteroides with the mass of 2.5% of marigold, carrying out enzymolysis and fermentation for 15h at 38 ℃, sterilizing and inactivating enzyme for 45min at the temperature of 98 ℃, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the leaching solution with the concentration of less than 50kDa, drying and crushing to obtain the marigold extract.
Wherein the solid content of the aqueous acrylic emulsion is 22wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
s1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3954 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Example 5
The negative ion furniture paint comprises the following raw materials in parts by weight: 8 parts of anion powder, 15 parts of molecular resonance water, 0.1 part of tripterygium wilfordii extract, 0.1 part of mint extract, 0.1 part of marigold extract, 0.006 part of levulinic acid, 0.006 part of anisic acid, 0.006 part of octanoyl hydroxamic acid, 10 parts of aqueous acrylic emulsion, 1 part of dodecanol ester, 5 parts of talcum powder, 5 parts of titanium dioxide, 0.03 part of sodium dodecyl benzene sulfonate, 0.02 part of aqueous defoamer and 0.2 part of cetyl hydroxyethyl cellulose.
Wherein the negative ion powder comprises the following components in parts by mass of 20 parts of tourmaline, 20 parts of neodymium oxide, 10 parts of niobium oxide, 10 parts of lanthanum oxide, 35 parts of silicon dioxide and 8 parts of serpentine jade; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
The preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding 12 times of water, boiling for 40min, cooling, and filtering to obtain residue and filtrate; dispersing the filter residue in water with the mass of 6 times of that of the filter residue, adding lactobacillus plantarum with the mass of 3% of the tripterygium wilfordii and subtilisin with the mass of 2% of the tripterygium wilfordii, carrying out fermentation enzymolysis for 18 hours at 36 ℃, sterilizing and inactivating enzymes for 50 minutes at the temperature of 100 ℃, filtering by adopting a 50kDa ultrafiltration membrane after cooling, mixing liquid with the molecular weight of less than 50kDa with the filtrate, concentrating, drying and crushing to obtain the tripterygium wilfordii extract.
Wherein, the preparation method of the mint extract comprises the following steps: pulverizing folium Menthae, percolating with ethanol 10 times of folium Menthae at 5mL/min, percolating with deionized water 10 times of folium Menthae at 5mL/min to obtain extract, and evaporating and concentrating the extract to 12% volume to obtain herba Menthae extract.
Wherein, the preparation method of the marigold extract comprises the following steps: pulverizing flos Tagetis Erectae, percolating with 10 times of ethanol at 5mL/min, percolating with 10 times of deionized water at 5mL/min to obtain extract and residue; dispersing the leaching residue in water with the mass of 8 times that of the leaching residue, adding citric acid to adjust the pH to 5.2, adding 2% of hemicellulase and 3% of leuconostoc mesenteroides of marigold, carrying out enzymolysis and fermentation for 16h at 40 ℃, heating to 100 ℃, sterilizing and inactivating enzymes for 50min, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the leaching solution with the concentration below 50kDa, drying, and crushing to obtain the marigold extract.
Wherein the solid content of the aqueous acrylic emulsion is 22wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
The preparation method of the negative ion furniture paint comprises the following steps:
S1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with 4000 e -/cm3 negative ions;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
The negative ion furniture paint is used as the finishing paint of furniture products, and is sprayed after being brushed or diluted by water, and the coating thickness is more than 0.5mm.
Preparation of comparative example 1
In the negative ion furniture paint, the molecular resonance water is replaced by purified water; other parameters and methods were the same as in example 1.
Preparation of comparative example 2
In the negative ion furniture paint, the niobium oxide component of the negative ion powder is replaced by neodymium oxide; other parameters and methods were the same as in example 1.
Preparation of comparative example 3
In the negative ion furniture lacquer, the tripterygium wilfordii extract is replaced by talcum powder, and other parameters and methods are the same as in example 1.
Preparation of comparative example 4
In the negative ion furniture lacquer, the marigold extract is replaced by talcum powder, and other parameters and methods are the same as in example 1.
Preparation of comparative example 5
In the negative ion furniture lacquer, levulinic acid, anisoic acid and octanoyl hydroxamic acid are replaced by talcum powder, and other parameters and methods are the same as in example 1.
Preparation of comparative example 6
In the negative ion furniture paint, the molecular resonance water is replaced by purified water; the niobium oxide component of the negative ion powder is replaced by neodymium oxide; the lanthanum oxide component is replaced by neodymium oxide; other parameters and methods were the same as in example 1.
1. The furniture lacquers of examples 1 to 5 were tested for the content of harmful substances according to the "limit of harmful substances in woodenware paint" GB18581, the results are shown in Table 1 below:
from the above results, it is clear that the furniture lacquer of each example has high safety, no harmful solvent is added in the components, no harmful volatile substances are contained, and the safety level of contacting children can be achieved.
2. The basic performance of the furniture lacquers of examples 1 to 5 was tested according to GB/T23999, water-borne Wood coating for interior decoration, and the results all meet the standard requirements.
3. The furniture lacquer of each example and the furniture lacquer of the comparative example were subjected to air anion induction detection according to "anion functional paint" HG/T4109, and the results are shown in Table 2 below:
from the above results, the furniture lacquers of examples 1 to 5 have high air anion-generating amount and can purify air with high efficiency; wherein, the molecular resonance water can strengthen the negative ion powder and paint negative ion efficacy; wherein, the effect of the negative ion powder can be improved by adding niobium oxide and lanthanum oxide to be matched.
4. Insecticidal test
The furniture paint is coated on the inner wall of a box body (a box body with an open side surface and a box body specification of 1m 3 and a brush coating thickness of 1 mm), a lamp body is arranged in the box body for illumination, the box body is arranged outdoors at night in summer, and the number of pest corpses in each box body is observed after 12 hours; placing the box body into a storehouse for 6 months, and repeating insect expelling and killing tests; the test results are shown in table 3 below:
from the above results, it is known that the furniture lacquer of examples 1 to 5 has an insecticidal effect, wherein the tripterygium wilfordii extract and the marigold extract have a good insecticidal effect, and after being matched, the furniture lacquer has a synergistic effect, and the insecticidal effect is greatly improved.
5. Mildew resistance test
Furniture paint is coated on the surface of a wood board (the specification of the wood board is 50mm multiplied by 1mm; the brushing thickness is 0.5 mm), and the wood board is taken out and observed to mold after being placed for 1 month under a dark and moist environment (the temperature is 30 ℃ and the humidity is 75 degrees and no light is generated), and the result is shown in the following table 4:
From the results, the tripterygium wilfordii extract and the marigold extract can have good antibacterial effect when being used together, and excellent mildew resistance can be achieved by adding a small amount of the tripterygium wilfordii extract and the marigold extract; the levulinic acid, the anisoic acid and the octanoyl hydroxamic acid are matched for use, so that the antibacterial property is excellent, and the mildew-proof and corrosion-proof effects are greatly improved.
Claims (10)
1. The negative ion furniture paint is characterized by comprising the following raw materials in parts by mass: 2 to 8 parts of anion powder, 5 to 15 parts of molecular resonance water, 0.05 to 0.1 part of tripterygium wilfordii extract, 0.05 to 0.1 part of mint extract, 0.05 to 0.1 part of marigold extract, 0.002 to 0.006 part of levulinic acid, 0.002 to 0.006 part of anisic acid, 0.002 to 0.006 part of octanoyl hydroxamic acid, 5 to 10 parts of aqueous acrylic emulsion, 0.5 to 1 part of dodecanol ester, 3 to 5 parts of talcum powder, 3 to 5 parts of titanium pigment, 0.01 to 0.03 part of sodium dodecyl benzene sulfonate, 0.005 to 0.02 part of aqueous defoamer and 0.05 to 0.2 part of cetyl hydroxyethyl cellulose.
2. The negative ion furniture paint according to claim 1, wherein the negative ion powder comprises 15-20 parts of tourmaline, 15-20 parts of neodymium oxide, 5-10 parts of niobium oxide, 5-10 parts of lanthanum oxide, 30-35 parts of silicon dioxide and 5-8 parts of serpentine jade in parts by weight; the granularity range of the negative ion powder is 0.005 mu m-2 mu m.
3. The negative ion furniture lacquer according to claim 1, wherein the preparation method of the tripterygium wilfordii extract comprises the following steps: pulverizing radix Tripterygii Wilfordii, adding water 10-12 times of radix Tripterygii Wilfordii, boiling for 30-40 min, cooling, and filtering to obtain residue and filtrate; dispersing filter residues in water with the mass of 4-6 times of that of the filter residues, adding lactobacillus plantarum and subtilisin, carrying out fermentation enzymolysis for 16-18 hours at the temperature of 35-36 ℃, heating, sterilizing, inactivating enzyme, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the concentration below 50kDa with the filtrate, concentrating, drying, and crushing to obtain the tripterygium wilfordii extract.
4. The negative ion furniture lacquer according to claim 3, wherein the added amount of the lactobacillus plantarum is 0.5-3% of the mass of the tripterygium wilfordii; the addition amount of the subtilisin is 0.5-2% of the mass of the tripterygium wilfordii; the temperature of the heating sterilization enzyme deactivation is 90-100 ℃ and the time is 30-50 min.
5. The negative ion furniture lacquer according to claim 1, wherein the mint extract is prepared by the following steps: crushing mint leaves, percolating with ethanol with the mass of 6-10 times of that of the mint leaves at the speed of 2-5 mL/min, percolating with deionized water with the mass of 6-10 times of that of the mint leaves at the speed of 2-5 mL/min to obtain a leaching solution, and evaporating and concentrating the leaching solution to 8-12% of the volume to obtain the mint extract.
6. The negative ion furniture lacquer according to claim 1, characterized in that the preparation method of the marigold extract is: pulverizing marigold, percolating with ethanol 6-10 times of the marigold at a speed of 2-5 mL/min, percolating with deionized water 6-10 times of the marigold at a speed of 2-5 mL/min to obtain a leachate and a leaching residue; dispersing the leaching residue in water with the mass of 6-8 times that of the leaching residue, adding citric acid to adjust the pH to 4.2-5.2, adding hemicellulase and leuconostoc mesenteroides, carrying out enzymolysis and fermentation at 35-40 ℃ for 12-16 hours, heating, sterilizing, inactivating enzyme, cooling, filtering by adopting a 50kDa ultrafiltration membrane, mixing liquid with the leaching solution with the concentration of less than 50kDa, drying, and crushing to obtain the marigold extract.
7. The negative ion furniture lacquer according to claim 6, wherein the amount of the hemicellulase added is 0.5-2% of the mass of the marigold, and the amount of the leuconostoc mesenteroides added is 1-3% of the mass of the marigold; the temperature of the heating sterilization enzyme deactivation is 90-100 ℃ and the time is 30-50 min.
8. The negative ion furniture lacquer according to claim 1, characterized in that the aqueous acrylic emulsion has a solids content of 20-22 wt%; the granularity of the talcum powder is smaller than 30 mu m, and the granularity of the titanium dioxide is smaller than 30 mu m.
9. The method for preparing the negative ion furniture paint as claimed in claim 1, which is characterized by comprising the following steps:
S1: standing the MRM molecular resonance plate in water to perform molecular resonance reaction to form molecular resonance water with the anion generating amount of 3000 e -/cm3 -4000 e -/cm3;
S2: according to the mass ratio, molecular resonance water, aqueous acrylic emulsion, sodium dodecyl benzene sulfonate, aqueous defoamer and cetyl hydroxyethyl cellulose are uniformly mixed, then negative ion powder, talcum powder and titanium white powder are added for continuous uniform mixing, and finally thunder god vine extract, peppermint extract, marigold extract, levulinic acid, anisic acid, octanoyl hydroxamic acid and dodecanol ester are added for uniform mixing, so that the negative ion furniture paint is obtained.
10. The method for using the negative ion furniture paint as claimed in claim 1, wherein the negative ion furniture paint is used as a top paint of furniture products, and is sprayed after being brushed or diluted with water, and the coating thickness is more than 0.5 mm.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105086789A (en) * | 2015-08-05 | 2015-11-25 | 安徽岍汧漆业有限公司 | Insect expelling paint for furniture and manufacturing method thereof |
| CN105295581A (en) * | 2015-12-03 | 2016-02-03 | 海城市家庭空间装饰材料厂 | Indoor multifunctional waterborne coating and preparation method thereof |
| CN108541718A (en) * | 2018-06-01 | 2018-09-18 | 肥西县碧涛建材有限公司 | A kind of negative ion air purifying material and preparation method thereof |
| CN115152920A (en) * | 2022-08-03 | 2022-10-11 | 信阳农林学院 | A preservative prepared from folium Camelliae sinensis and its preparation method |
| CN117801989A (en) * | 2023-12-19 | 2024-04-02 | 广东杰昇生命科技有限公司 | Preparation method of acid and alkali resistant biological preparation for resisting ulcerative colitis |
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- 2024-06-03 CN CN202410703008.8A patent/CN118271921A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086789A (en) * | 2015-08-05 | 2015-11-25 | 安徽岍汧漆业有限公司 | Insect expelling paint for furniture and manufacturing method thereof |
| CN105295581A (en) * | 2015-12-03 | 2016-02-03 | 海城市家庭空间装饰材料厂 | Indoor multifunctional waterborne coating and preparation method thereof |
| CN108541718A (en) * | 2018-06-01 | 2018-09-18 | 肥西县碧涛建材有限公司 | A kind of negative ion air purifying material and preparation method thereof |
| CN115152920A (en) * | 2022-08-03 | 2022-10-11 | 信阳农林学院 | A preservative prepared from folium Camelliae sinensis and its preparation method |
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