CN113929854A - Antibacterial and stain-resistant graphene foamed sponge and preparation method thereof - Google Patents
Antibacterial and stain-resistant graphene foamed sponge and preparation method thereof Download PDFInfo
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- CN113929854A CN113929854A CN202111216858.8A CN202111216858A CN113929854A CN 113929854 A CN113929854 A CN 113929854A CN 202111216858 A CN202111216858 A CN 202111216858A CN 113929854 A CN113929854 A CN 113929854A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 33
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 57
- 238000005187 foaming Methods 0.000 claims abstract description 36
- 241000675108 Citrus tangerina Species 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000003610 charcoal Substances 0.000 claims abstract description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 13
- 241001330002 Bambuseae Species 0.000 claims abstract description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 13
- 239000011425 bamboo Substances 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims abstract description 13
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000004088 foaming agent Substances 0.000 claims abstract description 10
- 229920000570 polyether Polymers 0.000 claims abstract description 10
- 229920005862 polyol Polymers 0.000 claims abstract description 10
- 150000003077 polyols Chemical class 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002993 sponge (artificial) Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to an antibacterial and stain-resistant graphene foamed sponge and a preparation method thereof, wherein the antibacterial and stain-resistant graphene foamed sponge comprises the following raw materials in parts by weight: 70-90 parts of polyether polyol, 60-80 parts of toluene diisocyanate, 6-8 parts of foaming agent, 1-2 parts of foam stabilizer, 0.5-1 part of catalyst, 0.5-1 part of surfactant, 10-15 parts of graphene powder, 10-20 parts of tangerine peel powder, 8-10 parts of bamboo charcoal powder and a proper amount of water. The finished product of the graphene foaming sponge prepared by the invention has no peculiar smell, has the effects of bacteriostasis, pollution resistance and oxidation resistance, and has a wide application range; and the preparation method is simple, low in cost and suitable for popularization.
Description
Technical Field
The invention relates to the technical field of foaming sponges, and particularly relates to a graphene foaming sponge.
Background
The sponge is a porous material, has good water absorption, and can be used for cleaning articles, such as a cleaning sponge brush for washing dishes, a makeup egg for makeup, a memory pillow for elastic recovery, a seat cushion, a ground mat and the like which are common in life.
Sponges are a broad name, including natural sponges, polymeric sponges, and the like. The foaming sponge is a polymeric sponge made of foaming plastic polymers, has a series of characteristics of elasticity, light weight, quick pressure-sensitive fixation, convenient use, free bending, ultrathin volume, reliable performance and the like, has higher comfort performance when used, is commonly used in the fields of inner packages, daily necessities and the like, and is closely related to the life of common people.
However, since the foam sponge is polymerized from chemicals, the finished product must emit a harsh chemical taste, which is particularly unfriendly to respiratory-sensitive people; in addition, the sponge is easy to yellow after being used for a long time, and the problems of blackening, mildewing and the like are easily caused due to improper storage, so that the experience of people on the foaming sponge product is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the graphene foamed sponge which can effectively remove the chemical peculiar smell of the traditional foamed sponge and has the antibacterial and stain-resistant functions, and the preparation method of the graphene foamed sponge.
The specific scheme is as follows:
the invention aims to provide an antibacterial and stain-resistant graphene foaming sponge which comprises the following raw materials in parts by weight:
70-90 parts of polyether polyol
60-80 parts of toluene diisocyanate
6-8 parts of foaming agent
1-2 parts of foam stabilizer
0.5 to 1 portion of catalyst
0.5-1 part of surfactant
10-15 parts of graphene powder
10-20 parts of tangerine peel powder
Bamboo charcoal powder 8-10 parts
And a proper amount of water.
Further, the tangerine peel powder is prepared by grinding and sieving dried tangerine peels, and the particle size of the tangerine peel powder is less than 7000 meshes.
Another object of the present invention is to provide a preparation method of the antibacterial and stain-resistant graphene foam sponge, which comprises the following steps:
(1) washing with water, removing impurities of the raw materials, and weighing the raw materials in parts by weight;
(2) using nitrogen as protective gas, leaching and drying polyether polyol for later use;
(3) putting the dried orange peel powder into a burning pot, adding a proper amount of water, soaking for 30-40 minutes, boiling, and decocting for 1-2 hours;
cooling to room temperature, filtering, and steaming and dewatering the filter residue in a thickener to obtain pericarpium Citri Tangerinae powder residue;
(4) sequentially adding the mixture prepared in the step (2), the dried orange peel powder residue prepared in the step (3), graphene powder, bamboo charcoal powder, a foaming agent, a foam stabilizer, a catalyst and a surfactant into a stirring barrel, adding a proper amount of water, and uniformly mixing and stirring for later use;
(5) adding toluene diisocyanate into the stirring barrel, and quickly and uniformly stirring to obtain a mixture;
(6) and (4) quickly pouring the mixture prepared in the step (5) into a foaming box for foaming, and obtaining a finished product after 15-20 minutes.
Further, the stirring conditions of the step (4) are as follows: stirring evenly at the room temperature at the rotating speed of 2500-.
Wherein:
the tangerine is a traditional Chinese medicinal material, seeds, leaves and fruit peels can be used as the medicine, and the tangerine is widely planted in China, so that the raw material cost is low. The tangerine peel powder is prepared by sun-drying and grinding tangerine peel, is fragrant in smell, has the effects of relieving distension, eliminating dampness and deodorizing, and is good in oxidation resistance, after the tangerine peel powder is sieved, the tangerine peel powder is added into the foaming sponge, so that the phenomena of long service time and easiness in oxidation and yellowing of the sponge can be effectively improved, the chemical peculiar smell of the traditional foaming sponge can be removed, and the bacteriostatic and deodorizing effects of the foaming sponge are enhanced.
Bamboo charcoal is charcoal which is prepared by firing alpine moso bamboos which grow for more than three years at high temperature of nearly thousand ℃. The bamboo charcoal has loose and porous structure, fine and porous molecules, hard texture and strong adsorption capacity, can purify air, eliminate peculiar smell, absorb moisture, prevent mildew, inhibit bacteria and expel parasites, can remove moisture and sweat when contacting with a human body, promotes blood circulation and metabolism of the human body and relieves fatigue. The bamboo charcoal powder prepared by scientific extraction and processing is added into the foaming sponge, so that the antibacterial and insect-repellent effects of the foaming sponge can be enhanced.
Graphene is a two-dimensional carbon material, has excellent electric and optical properties and heat conduction performance, and can be prepared into graphene powder and added into the foaming sponge, so that the antibacterial and stain-resistant effects of the foaming sponge can be effectively exerted.
Has the advantages that:
according to the invention, the dried orange peel powder is added, so that the finished product has no peculiar smell, has antibacterial and antioxidant effects, and the foaming sponge has light natural orange fragrance and good smell experience.
According to the invention, by adding the graphene powder, the antibacterial and stain-resistant effects of the foaming sponge are enhanced, and the service life of the product is prolonged.
The preparation method of the foaming sponge is simple, wide in material source, low in cost and worthy of popularization.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative of the invention and is not to be construed as limiting the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1:
the preparation method of the antibacterial and stain-resistant graphene foaming sponge comprises the following steps:
(1) washing with water, removing impurities of the raw materials, and weighing the raw materials in parts by weight;
the raw materials are as follows: 78 parts of polyether polyol, 80 parts of toluene diisocyanate, 6 parts of foaming agent, 1.5 parts of foam stabilizer, 0.5 part of catalyst, 1 part of surfactant, 10 parts of graphene powder, 18 parts of dried orange peel powder, 8 parts of bamboo charcoal powder and a proper amount of water;
the tangerine peel powder is prepared by grinding and sieving dried tangerine peels, and the particle size of the tangerine peel powder is less than 7000 meshes;
(2) using nitrogen as protective gas, leaching and drying polyether polyol for later use;
(3) putting the dried orange peel powder into a burning pot, adding a proper amount of water, soaking for half an hour, boiling, decocting for 1 hour, cooling to room temperature, filtering, and steaming and pressing filter residues in a thickener to remove water to obtain dried orange peel powder residues for later use;
(4) sequentially adding the mixture prepared in the step (2), the dried orange peel powder residue prepared in the step (3), graphene powder, bamboo charcoal powder, a foaming agent, a foam stabilizer, a catalyst and a surfactant into a stirring barrel, adding a proper amount of water, and uniformly stirring at a rotating speed of 3000 revolutions per minute at room temperature for later use;
(5) adding toluene diisocyanate into the stirring barrel, and quickly and uniformly stirring to obtain a mixture;
(6) and (4) quickly pouring the mixture prepared in the step (5) into a foaming box for foaming, and obtaining the finished product of the antibacterial and stain-resistant graphene foaming sponge after 15 minutes.
Example 2:
the preparation method of the antibacterial and stain-resistant graphene foaming sponge comprises the following steps:
(1) washing with water, removing impurities of the raw materials, and weighing the raw materials in parts by weight;
the raw materials are as follows: 86 parts of polyether polyol, 78 parts of toluene diisocyanate, 6 parts of foaming agent, 2 parts of foam stabilizer, 1 part of catalyst, 0.8 part of surfactant, 12 parts of graphene powder, 18 parts of dried orange peel powder, 8 parts of bamboo charcoal powder and a proper amount of water;
the tangerine peel powder is prepared by grinding and sieving dried tangerine peels, and the particle size of the tangerine peel powder is less than 7000 meshes;
(2) using nitrogen as protective gas, leaching and drying polyether polyol for later use;
(3) putting the dried orange peel powder into a burning pot, adding a proper amount of water, soaking for 40 minutes, boiling, decocting for 1 hour, cooling to room temperature, filtering, and steaming and dehydrating filter residues in a thickener to obtain dried orange peel powder residues for later use;
(4) sequentially adding the mixture prepared in the step (2), the dried orange peel powder residue prepared in the step (3), graphene powder, bamboo charcoal powder, a foaming agent, a foam stabilizer, a catalyst and a surfactant into a stirring barrel, adding a proper amount of water, and uniformly stirring at a rotating speed of 3000 revolutions per minute at room temperature for later use;
(5) adding toluene diisocyanate into the stirring barrel, and quickly and uniformly stirring to obtain a mixture;
(6) and (4) quickly pouring the mixture prepared in the step (5) into a foaming box for foaming, and obtaining the finished product of the antibacterial and stain-resistant graphene foaming sponge after 15 minutes.
Example 3:
the preparation method of the antibacterial and stain-resistant graphene foaming sponge comprises the following steps:
(1) washing with water, removing impurities of the raw materials, and weighing the raw materials in parts by weight;
the raw materials are as follows: 78 parts of polyether polyol, 60 parts of toluene diisocyanate, 6 parts of foaming agent, 1.2 parts of foam stabilizer, 0.6 part of catalyst, 0.8 part of surfactant, 10 parts of graphene powder, 15 parts of dried orange peel powder, 8 parts of bamboo charcoal powder and a proper amount of water;
the tangerine peel powder is prepared by grinding and sieving dried tangerine peels, and the particle size of the tangerine peel powder is less than 7000 meshes;
(2) using nitrogen as protective gas, leaching and drying polyether polyol for later use;
(3) putting the dried orange peel powder into a burning pot, adding a proper amount of water, soaking for 40 minutes, boiling, decocting for 1.5 hours, cooling to room temperature, filtering, and steaming and pressing filter residues in a thickener to remove water to obtain dried orange peel powder residues for later use;
(4) sequentially adding the mixture prepared in the step (2), the dried orange peel powder residue prepared in the step (3), graphene powder, bamboo charcoal powder, a foaming agent, a foam stabilizer, a catalyst and a surfactant into a stirring barrel, adding a proper amount of water, and uniformly stirring at a rotating speed of 2500 rpm at room temperature for later use;
(5) adding toluene diisocyanate into the stirring barrel, and quickly and uniformly stirring to obtain a mixture;
(6) and (4) quickly pouring the mixture prepared in the step (5) into a foaming box for foaming, and obtaining the finished product of the antibacterial and stain-resistant graphene foaming sponge after 15 minutes.
The finished product of the graphene foaming sponge prepared by the invention has no peculiar smell, has the effects of bacteriostasis, pollution resistance and oxidation resistance, and has a wide application range; and the preparation method is simple, low in cost and suitable for popularization.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The antibacterial and stain-resistant graphene foaming sponge is characterized by comprising the following raw materials in parts by weight:
2. the antibacterial and stain-resistant graphene foaming sponge according to claim 1, wherein the tangerine peel powder is prepared by grinding and sieving dried tangerine peel, and the particle size of the tangerine peel powder is less than 7000 meshes.
3. The preparation method of the antibacterial and stain-resistant graphene foam sponge as claimed in claim 1 or 2, which is characterized by comprising the following steps:
(1) washing with water, removing impurities of the raw materials, and weighing the raw materials in parts by weight;
(2) using nitrogen as protective gas, leaching and drying polyether polyol for later use;
(3) putting the dried orange peel powder into a burning pot, adding a proper amount of water, soaking for 30-40 minutes, boiling, and decocting for 1-2 hours;
cooling to room temperature, filtering, and steaming and dewatering the filter residue in a thickener to obtain pericarpium Citri Tangerinae powder residue;
(4) sequentially adding the mixture prepared in the step (2), the dried orange peel powder residue prepared in the step (3), graphene powder, bamboo charcoal powder, a foaming agent, a foam stabilizer, a catalyst and a surfactant into a stirring barrel, adding a proper amount of water, and uniformly mixing and stirring for later use;
(5) adding toluene diisocyanate into the stirring barrel, and quickly and uniformly stirring to obtain a mixture;
(6) and (4) quickly pouring the mixture prepared in the step (5) into a foaming box for foaming, and obtaining a finished product after 15-20 minutes.
4. The method according to claim 3, wherein the stirring conditions of the step (4) are: stirring evenly at the room temperature at the rotating speed of 2500-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216858.8A CN113929854A (en) | 2021-10-19 | 2021-10-19 | Antibacterial and stain-resistant graphene foamed sponge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216858.8A CN113929854A (en) | 2021-10-19 | 2021-10-19 | Antibacterial and stain-resistant graphene foamed sponge and preparation method thereof |
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| CN202111216858.8A Pending CN113929854A (en) | 2021-10-19 | 2021-10-19 | Antibacterial and stain-resistant graphene foamed sponge and preparation method thereof |
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Cited By (2)
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| CN114806023A (en) * | 2022-06-13 | 2022-07-29 | 东莞兆阳兴业塑胶制品有限公司 | Foaming material for floating equipment and preparation method thereof |
| CN115353730A (en) * | 2022-08-31 | 2022-11-18 | 福建大方睡眠科技股份有限公司 | Non-inductive cotton and preparation method thereof |
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| CN110452357A (en) * | 2019-07-29 | 2019-11-15 | 佛山市惠安家居用品有限公司 | A kind of bamboo charcoal sponge and preparation method thereof |
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2021
- 2021-10-19 CN CN202111216858.8A patent/CN113929854A/en active Pending
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| CN101619165A (en) * | 2008-07-01 | 2010-01-06 | 浙江省林业科学研究院 | Bamboo charcoal polyurethane foam composite material and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114806023A (en) * | 2022-06-13 | 2022-07-29 | 东莞兆阳兴业塑胶制品有限公司 | Foaming material for floating equipment and preparation method thereof |
| CN115353730A (en) * | 2022-08-31 | 2022-11-18 | 福建大方睡眠科技股份有限公司 | Non-inductive cotton and preparation method thereof |
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Application publication date: 20220114 |