CN110982381A - Environment-friendly coating capable of decomposing formaldehyde - Google Patents
Environment-friendly coating capable of decomposing formaldehyde Download PDFInfo
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- CN110982381A CN110982381A CN201911268987.4A CN201911268987A CN110982381A CN 110982381 A CN110982381 A CN 110982381A CN 201911268987 A CN201911268987 A CN 201911268987A CN 110982381 A CN110982381 A CN 110982381A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0881—Titanium
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- 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
- C08K2003/2262—Oxides; Hydroxides of metals of manganese
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to the technical field of home decoration coatings, and particularly discloses an environment-friendly coating for decomposing formaldehyde, which comprises 25 parts of quartz sand, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of an adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water. The environment-friendly coating for decomposing formaldehyde provided by the invention has the characteristics of strong formaldehyde decomposition technology, effects of adjusting air humidity, deodorizing and mildew proofing, deodorizing and sterilizing, safe chemical properties and the like, capability of effectively and stably adsorbing harmful substances in indoor environment for a long time, environmental friendliness, no pollution and low manufacturing cost.
Description
Technical Field
The invention relates to the field of home decoration coatings, in particular to an environment-friendly coating for decomposing formaldehyde.
Background
The coating is a necessary material for home decoration, the requirement on the coating for decoration is higher and higher along with the enhancement of the environmental awareness of people at present, polyvinyl formal coatings with higher formaldehyde release ratio are gradually eliminated, various environment-friendly interior wall coatings which release negative ions and have low VOC are used more and more, the health and the environmental protection are further improved, and the problem that how to develop the environment-friendly green coating becomes more and more attention of people is raised. Particularly, in recent years, with the improvement of living standard of people, living conditions are improved continuously, and the problem of environmental pollution caused by decoration pollution is gradually emphasized. The national departments set a series of standards related to indoor environment in turn, and control is carried out from building decoration materials to indoor air quality and the like.
Indoor environmental pollution is the most serious after new house decoration, the most common chemical pollution gases after new house decoration comprise formaldehyde, benzene series, ammonia gas, radon gas, volatile organic compounds and the like, and the five toxic gases and harmful substances are called as '5 big invisible killers' in room decoration. The formaldehyde is a carcinogen, is very serious in harm to a human body, causes non-negligible influence on human health after being contacted with low-concentration or high-concentration formaldehyde for a long time, stimulates mucous membranes and skin to cause liver and lung function and immune function abnormality, and can cause carcinogenesis and gene mutation when the formaldehyde is serious. Therefore, many researchers have been working on the development and application of effective purification methods and purification materials capable of eliminating indoor formaldehyde pollution.
Disclosure of Invention
The invention aims to provide an environment-friendly coating for decomposing formaldehyde, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly coating for decomposing formaldehyde comprises the following raw materials in parts by weight: 20-30 parts of quartz sand, 6-9 parts of carbon powder, 20-30 parts of nano titanium, 10-20 parts of nano activated carbon, 0.5-3 parts of potassium carbonate, 5-13 parts of adhesive, 8-11 parts of manganese dioxide, 30-70 parts of epoxy resin, 20-30 parts of modified epoxy resin, 5-10 parts of hydroxyethyl cellulose, 4-7 parts of formaldehyde-resistant auxiliary agent, 0.3-1 part of nano antibacterial powder, 0.3-1.5 parts of stabilizer, 20-30 parts of pigment filler, 10-30 parts of calcium carbonate, 5-10 parts of hydroxyl polyester and 20-30 parts of water.
As a preferred technical scheme of the invention, the raw materials are prepared according to the following parts: 25 parts of quartz sand, 7 parts of carbon powder, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water.
As a preferred technical solution of the present invention, the water is deionized water.
In a preferred embodiment of the present invention, the stabilizer comprises the following components: alkenyl polyoxyethylene ether, sodium allyl sulfonate, acrylic acid and a chain transfer agent.
As a preferable technical scheme, the formaldehyde-resistant auxiliary agent is a dispersing agent and a defoaming agent.
In a preferred embodiment of the present invention, the defoaming agent is a defoaming agent for a B101 type water-based paint.
The invention also provides a preparation method of the environment-friendly coating for decomposing formaldehyde, which comprises the following specific steps:
s1: 25 parts of quartz sand, 7 parts of carbon powder, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water;
s2: reacting the silica and the carbon powder in the quartz sand weighed in the step S1 under the action of a high-temperature condition to generate crude silicon, reacting the crude silicon with chlorine gas under the high-temperature condition to generate silicon chloride, and reacting the silicon chloride with hydrogen gas under the high-temperature condition to obtain pure silicon serving as a formaldehyde adsorbent;
s3: stirring and mixing the potassium carbonate, the adhesive, the manganese dioxide, the epoxy resin modified epoxy resin, the hydroxyethyl cellulose, the stabilizer, the pigment filler, the calcium carbonate, the hydroxyl polyester and the water which are weighed in the step S1 to prepare a coating base solution;
s4: and (3) placing the nano titanium, the nano activated carbon, the formaldehyde-resistant auxiliary agent, the nano antibacterial powder, the formaldehyde adsorbent prepared in the step S2 and the coating base liquid prepared in the step S3 weighed in the step S1 into a reaction container, and stirring and mixing to obtain the environment-friendly coating.
Compared with the prior art, the invention has the beneficial effects that:
1. the active silicon prepared by processing, refining and preparing the quartz sand as the raw material has wide specific surface area and abundant pore structures matched with the sizes of indoor harmful gas molecules, has higher adsorption performance on gas, and can quickly adsorb harmful substances such as formaldehyde, benzene, xylene and the like contained in the air and floating bacteria in the air.
2. The environment-friendly coating for decomposing formaldehyde provided by the invention has the characteristics of strong formaldehyde decomposition technology, effects of adjusting air humidity, deodorizing and mildew proofing, deodorizing and sterilizing, safe chemical properties and the like, capability of effectively and stably adsorbing harmful substances in indoor environment for a long time, environmental friendliness, no pollution and low manufacturing cost.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the invention provides a technical scheme that: an environment-friendly coating for decomposing formaldehyde comprises the following raw materials in parts by weight: 20-30 parts of quartz sand, 6-9 parts of carbon powder, 20-30 parts of nano titanium, 10-20 parts of nano activated carbon, 0.5-3 parts of potassium carbonate, 5-13 parts of adhesive, 8-11 parts of manganese dioxide, 30-70 parts of epoxy resin, 20-30 parts of modified epoxy resin, 5-10 parts of hydroxyethyl cellulose, 4-7 parts of formaldehyde-resistant auxiliary agent, 0.3-1 part of nano antibacterial powder, 0.3-1.5 parts of stabilizer, 20-30 parts of pigment filler, 10-30 parts of calcium carbonate, 5-10 parts of hydroxyl polyester and 20-30 parts of water.
Specifically, the water is deionized water.
Specifically, the stabilizer comprises the following components: alkenyl polyoxyethylene ether, sodium allyl sulfonate, acrylic acid and a chain transfer agent.
Specifically, the formaldehyde-resistant auxiliary agent is a dispersing agent and a defoaming agent.
Specifically, the defoaming agent is a defoaming agent for a B101 type water-based paint.
The preparation method of the environment-friendly coating comprises the following specific steps:
s1: 25 parts of quartz sand, 7 parts of carbon powder, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water;
s2: reacting the silica and the carbon powder in the quartz sand weighed in the step S1 under the action of a high-temperature condition to generate crude silicon, reacting the crude silicon with chlorine gas under the high-temperature condition to generate silicon chloride, and reacting the silicon chloride with hydrogen gas under the high-temperature condition to obtain pure silicon serving as a formaldehyde adsorbent;
s3: stirring and mixing the potassium carbonate, the adhesive, the manganese dioxide, the epoxy resin modified epoxy resin, the hydroxyethyl cellulose, the stabilizer, the pigment filler, the calcium carbonate, the hydroxyl polyester and the water which are weighed in the step S1 to prepare a coating base solution;
s4: and (3) placing the nano titanium, the nano activated carbon, the formaldehyde-resistant auxiliary agent, the nano antibacterial powder, the formaldehyde adsorbent prepared in the step S2 and the coating base liquid prepared in the step S3 weighed in the step S1 into a reaction container, and stirring and mixing to obtain the environment-friendly coating.
Example 2 is the same as the above examples in material and processing steps, but the ratio of the two is different.
Example 2: s1: 23 parts of quartz sand, 7 parts of carbon powder, 22 parts of nano titanium, 12 parts of nano activated carbon, 0.8 part of potassium carbonate, 7 parts of adhesive, 8 parts of manganese dioxide, 45 parts of epoxy resin, 24 parts of modified epoxy resin, 7 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.5 part of nano antibacterial powder, 0.9 part of stabilizer, 25 parts of pigment filler, 14 parts of calcium carbonate, 7 parts of hydroxyl polyester and 25 parts of water;
s2: reacting the silica and the carbon powder in the quartz sand weighed in the step S1 under the action of a high-temperature condition to generate crude silicon, reacting the crude silicon with chlorine gas under the high-temperature condition to generate silicon chloride, and reacting the silicon chloride with hydrogen gas under the high-temperature condition to obtain pure silicon serving as a formaldehyde adsorbent;
s3: stirring and mixing the potassium carbonate, the adhesive, the manganese dioxide, the epoxy resin modified epoxy resin, the hydroxyethyl cellulose, the stabilizer, the pigment filler, the calcium carbonate, the hydroxyl polyester and the water which are weighed in the step S1 to prepare a coating base solution;
s4: and (3) placing the nano titanium, the nano activated carbon, the formaldehyde-resistant auxiliary agent, the nano antibacterial powder, the formaldehyde adsorbent prepared in the step S2 and the coating base liquid prepared in the step S3 weighed in the step S1 into a reaction container, and stirring and mixing to obtain the environment-friendly coating.
Example 3: s1: 27 parts of quartz sand, 9 parts of carbon powder, 26 parts of nano titanium, 18 parts of nano activated carbon, 1 part of potassium carbonate, 6 parts of adhesive, 8 parts of manganese dioxide, 56 parts of epoxy resin, 27 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 7 parts of formaldehyde-resistant auxiliary agent, 0.9 part of nano antibacterial powder, 1.1 part of stabilizer, 25 parts of pigment filler, 20 parts of calcium carbonate, 8 parts of hydroxyl polyester and 27 parts of water;
s2: reacting the silica and the carbon powder in the quartz sand weighed in the step S1 under the action of a high-temperature condition to generate crude silicon, reacting the crude silicon with chlorine gas under the high-temperature condition to generate silicon chloride, and reacting the silicon chloride with hydrogen gas under the high-temperature condition to obtain pure silicon serving as a formaldehyde adsorbent;
s3: stirring and mixing the potassium carbonate, the adhesive, the manganese dioxide, the epoxy resin modified epoxy resin, the hydroxyethyl cellulose, the stabilizer, the pigment filler, the calcium carbonate, the hydroxyl polyester and the water which are weighed in the step S1 to prepare a coating base solution;
s4: and (3) placing the nano titanium, the nano activated carbon, the formaldehyde-resistant auxiliary agent, the nano antibacterial powder, the formaldehyde adsorbent prepared in the step S2 and the coating base liquid prepared in the step S3 weighed in the step S1 into a reaction container, and stirring and mixing to obtain the environment-friendly coating.
Example 3 is the same as the above examples in material and processing steps, but the ratio of the two is different.
The environmental protection coating prepared according to the mixture ratio and the preparation method in the embodiments 1-3 is tested on aspects of formaldehyde adsorption, antibacterial property, aging resistance and the like, and the result is evaluated by A, B, C, D, and the following table shows:
| sample (I) | Formaldehyde adsorption | Antibacterial property | Degree of aging resistance |
| Example 1 | A | B | B |
| Example 2 | B | B | A |
| Example 3 | A | A | B |
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An environment-friendly coating for decomposing formaldehyde is characterized in that: the method comprises the following steps: 20-30 parts of quartz sand, 6-9 parts of carbon powder, 20-30 parts of nano titanium, 10-20 parts of nano activated carbon, 0.5-3 parts of potassium carbonate, 5-13 parts of adhesive, 8-11 parts of manganese dioxide, 30-70 parts of epoxy resin, 20-30 parts of modified epoxy resin, 5-10 parts of hydroxyethyl cellulose, 4-7 parts of formaldehyde-resistant auxiliary agent, 0.3-1 part of nano antibacterial powder, 0.3-1.5 parts of stabilizer, 20-30 parts of pigment filler, 10-30 parts of calcium carbonate, 5-10 parts of hydroxyl polyester and 20-30 parts of water.
2. The environment-friendly formaldehyde-decomposing paint as claimed in claim 1, wherein: preparing raw materials in parts as follows: 25 parts of quartz sand, 7 parts of carbon powder, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water.
3. The environment-friendly formaldehyde-decomposing paint as claimed in claim 1, wherein: the water is deionized water.
4. The environment-friendly formaldehyde-decomposing paint as claimed in claim 1, wherein: the stabilizer comprises the following components: alkenyl polyoxyethylene ether, sodium allyl sulfonate, acrylic acid and a chain transfer agent.
5. The environment-friendly formaldehyde-decomposing paint as claimed in claim 1, wherein: the formaldehyde-resistant auxiliary agent comprises a dispersing agent and a defoaming agent.
6. The environment-friendly formaldehyde-decomposing paint as claimed in claim 5, wherein: the defoaming agent is a defoaming agent for B101 type water-based paint.
7. The method for preparing the formaldehyde-decomposing environment-friendly paint according to any one of claims 1 to 6, characterized in that: the method comprises the following specific steps:
s1: 25 parts of quartz sand, 7 parts of carbon powder, 20 parts of nano titanium, 14 parts of nano activated carbon, 1 part of potassium carbonate, 8 parts of adhesive, 9 parts of manganese dioxide, 50 parts of epoxy resin, 25 parts of modified epoxy resin, 9 parts of hydroxyethyl cellulose, 5 parts of formaldehyde-resistant auxiliary agent, 0.7 part of nano antibacterial powder, 1.1 part of stabilizer, 28 parts of pigment filler, 15 parts of calcium carbonate, 6 parts of hydroxyl polyester and 27 parts of water;
s2: reacting the silica and the carbon powder in the quartz sand weighed in the step S1 under the action of a high-temperature condition to generate crude silicon, reacting the crude silicon with chlorine gas under the high-temperature condition to generate silicon chloride, and reacting the silicon chloride with hydrogen gas under the high-temperature condition to obtain pure silicon serving as a formaldehyde adsorbent;
s3: stirring and mixing the potassium carbonate, the adhesive, the manganese dioxide, the epoxy resin modified epoxy resin, the hydroxyethyl cellulose, the stabilizer, the pigment filler, the calcium carbonate, the hydroxyl polyester and the water which are weighed in the step S1 to prepare a coating base solution;
s4: and (3) placing the nano titanium, the nano activated carbon, the formaldehyde-resistant auxiliary agent, the nano antibacterial powder, the formaldehyde adsorbent prepared in the step S2 and the coating base liquid prepared in the step S3 weighed in the step S1 into a reaction container, and stirring and mixing to obtain the environment-friendly coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911268987.4A CN110982381A (en) | 2019-12-11 | 2019-12-11 | Environment-friendly coating capable of decomposing formaldehyde |
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| CN201911268987.4A CN110982381A (en) | 2019-12-11 | 2019-12-11 | Environment-friendly coating capable of decomposing formaldehyde |
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Cited By (1)
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| CN115637090A (en) * | 2022-07-25 | 2023-01-24 | 三林合板(南通)有限公司 | Nano flexible solid wood composite environment-friendly floor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115637090A (en) * | 2022-07-25 | 2023-01-24 | 三林合板(南通)有限公司 | Nano flexible solid wood composite environment-friendly floor |
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