CN116254025B - Sound insulation coating containing negative poisson ratio particles and preparation method thereof - Google Patents
Sound insulation coating containing negative poisson ratio particles and preparation method thereof Download PDFInfo
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
- C09D109/08—Latex
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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
- C09D7/65—Additives macromolecular
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a sound insulation coating containing particles with negative poisson ratio and a preparation method thereof, belonging to the technical field of building coatings, wherein the coating comprises, by weight, 5-20 parts of porous elastomer, 5-30 parts of emulsion, 1-3 parts of hollow glass microspheres, 3-5 parts of mica powder, 2-3 parts of aluminum silicate fibers, 20-40 parts of water and 0.2-0.5 part of auxiliary materials. In the high-performance floor sound insulation coating, the porous polymer material with negative poisson ratio is used as a core filler, the emulsion is used as a film forming substance, and the components such as mica powder, hollow glass beads, aluminum silicate fibers and the like are matched, so that the high-performance floor sound insulation coating has good sound insulation, shock absorption and energy absorption effects.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to a sound insulation coating containing negative poisson's ratio particles and a preparation method thereof.
Background
According to the report of environmental noise pollution-caused disease burden issued by the world health organization and the European Union cooperative research center, 15% of the general population in most countries is exposed to noise environments of more than 65dB, and noise pollution is an important environmental risk factor next to air pollution. The noise can bring serious physiological and psychological harm to people, and the noise slightly interferes with normal rest of people and influences working efficiency, and symptoms such as dizziness, headache, tinnitus and the like appear; the risk of damage to the hearing, visual organs and resulting in hypertension, heart disease, stroke, etc. is increased. On the other hand, if the human suffers from continuous noise disturbance for a long time, the noise acts on the central nervous system of the human, and symptoms such as palpitation, hypomnesis, inattention and the like can appear, so that the excitation and inhibition of cerebral cortex can be disordered, and the conditioned reflex is abnormal.
At present, for a general living environment, the faced environmental noise is air noise, wherein traffic noise is mainly, most of the environmental noise can be realized through sound insulation doors and windows, but residents are generally more sensitive to floor impact sound, the energy of floor impact sound insulation is high, the sound insulation difficulty is relatively high, and the process is more complex. Products aiming at floor impact sound insulation are few in the market, and the floor impact sound insulation product mainly comprises sound insulation mortar, a sound insulation polystyrene board, a sound insulation pad and a sound insulation paint, wherein the sound insulation paint is convenient to construct, has a thin sound insulation layer, and is a sound insulation product with high cost performance.
The sound insulation coating is mainly applied to wall and floor sound insulation of houses, business offices, libraries, entertainment venues, machine room workshops, schools, hotels, hospitals and the like. According to the current version GB/T50118-2010 'civil construction sound insulation design Specification' and GB/T50738-2019 'green construction evaluation Standard', the impact sound of the individual floor slab of the civil green construction is not more than 75dB, but the impact sound of the current common floor slab is between 78 and 84dB, and if the standard requirement is met, an additional sound insulation structure is required to be made on the floor slab.
The sound insulation effect of a plurality of sound insulation coatings on building floors is obvious at present, for example, the publication number of a Chinese patent is: CN 112011240A, a patent name is a sound insulation coating for building floor and a preparation method thereof, the thickness of the sound insulation coating is 3mm, the measured weight of the surface of the building floor is standardized, the impact sound pressure level is 69dB, and the sound insulation performance of the measured floor meets the requirements of the sound insulation standard of the impact sound of the floor between living rooms of residential buildings in GB50118-2010 'civil building sound insulation design Specification'; the publication number of another Chinese patent is: CN 111040597A, a micro-elastomer sound insulation coating and a preparation method thereof, wherein the sound insulation coating with the thickness of about 3mm is coated on a reinforced concrete floor with the normalized impact sound pressure level of 78dB, and the normalized impact sound pressure level of 62dB and the improved impact sound pressure level of 16dB of an experimental floor with the coating are obtained by testing.
At present, the floor impact sound insulation improvement effect of the sound insulation coating layer is obvious, but the weighting standardized impact sound pressure level of the floor tile paved on the sound insulation coating layer is still higher, and the impact sound pressure level of the building floor is not reduced but slightly increased after the floor tile is paved. This is mainly due to the fact that the striker directly strikes the hard tile surface, and the energy generated is far greater than that of the elastic sound insulation coating layer, so that the striking sound pressure level is higher. Therefore, the performance of the sound-insulating paint is required to be higher, and the sound-insulating paint needs to have better energy absorption and shock absorption effects to relieve the energy impact of the rigid tile surface layer, and particularly to isolate noise at certain specific frequencies.
Disclosure of Invention
The invention aims to provide a sound insulation coating containing particles with negative poisson ratio and a preparation method thereof, and solves the technical problem that the sound insulation effect is poor after decorative floor tiles are paved on a sound insulation coating layer of the existing building floor.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The sound insulating paint containing the particles with negative poisson ratio comprises, by weight, 5-20 parts of porous elastomer, 5-30 parts of emulsion, 1-3 parts of hollow glass microspheres, 3-5 parts of mica powder, 2-3 parts of aluminum silicate fibers, 20-40 parts of water and 0.2-0.5 part of auxiliary materials.
2. The sound-insulating coating containing negative poisson's ratio particles according to claim 1, wherein: the porous elastomer is a porous polymeric material having a negative poisson's ratio.
Further, the porous polymer material is at least one of polyurethane, epoxy resin, ethylene-vinyl acetate and organic silicon resin.
Further, the microcell of the porous polymeric material is constructed in at least one of a concave honeycomb structure, a chiral structure and a rotationally rigid structure.
Further, the pore size of the porous polymer material is in the range of 100 to 500 μm.
Further, the emulsion is one or any two of acrylic emulsion, styrene-butadiene emulsion, polyurethane emulsion, epoxy resin emulsion and ethylene-vinyl acetate emulsion.
Further, the particle size of the hollow glass beads is 0.1-1 mm, the particle size of the mica powder is 200-2000 meshes, and the length of the aluminum silicate fiber is 3-5mm.
Further, the auxiliary materials comprise 0.04 part of defoaming agent, 0.06 part of cellulose ether, 0.02 part of dispersing agent, 0.03 part of wetting agent, 0.02 part of film forming auxiliary agent, 0.02 part of silane coupling agent, 0.01 part of thickening agent and 0.02 part of bactericide.
A method for preparing a sound-insulating coating containing particles with negative poisson's ratio, the method comprising the steps of:
step 1: sequentially adding a defoaming agent, a dispersing agent, a wetting agent, a thickening agent and a silane coupling agent into water at room temperature, and uniformly mixing and stirring to obtain a material aqueous solution;
step 2: sequentially adding mica powder, hollow glass beads and porous elastomer into the material aqueous solution, and uniformly mixing and stirring;
Step 3: adding the emulsion in the step 2, wherein the stirring speed is 500-700 rpm/min, and the stirring time is 3-5 min;
Step 4: adding aluminum silicate fibers into the solution prepared in the step 3, mixing and stirring uniformly, adding a flame retardant and a bactericide, stirring at 900-1200 rpm/min for 10-20 min, and obtaining the required sound insulation coating containing particles with negative poisson ratio.
Further, the stirring speed in the step 1 is 300-500 rpm/min, the stirring time is 5-10 min, the stirring speed in the step 2 is 800-1200 rpm/min, and the stirring time is 10-15 min.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) In the high-performance floor sound insulation coating, the porous polymer material with negative poisson ratio is used as a core filler, the emulsion is used as a film forming substance, and the components such as mica powder, hollow glass beads, aluminum silicate fibers and the like are matched, so that the high-performance floor sound insulation coating has good sound insulation, shock absorption and energy absorption effects.
(2) Compared with the common material, the porous polymer material with the negative poisson ratio firstly shows more excellent vibration reduction and energy absorption effects in the aspect of damping performance, secondly has band gap properties of elastic waves and sound wave bands, can block the elastic waves of a specific frequency band to prevent the elastic waves from being transmitted and transmitted, further vibration isolation and noise reduction, and finally has excellent impact toughness, excellent elasticity and shearing resistance, and can gather inwards when being extruded, and the density is increased instantaneously, so that the porous polymer material with the negative poisson ratio can show the characteristic of rigidity and toughness enhancement.
(3) The porous polymer material with the negative poisson ratio is used as the filler of the sound insulation coating, after the ceramic tile is paved on the surface of the coating, even if the rigid surface of the ceramic tile is impacted, the energy is large, and the sound insulation coating has the characteristic of the porous polymer material with the negative poisson ratio, so that the coating has a special sound insulation, shock absorption and energy absorption effect.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail by referring to preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
Example 1
A sound insulation coating containing particles with negative poisson ratio comprises the following components in parts by weight: 5 parts of porous elastomer, 15 parts of emulsion, 1 part of hollow glass microsphere, 4 parts of mica powder, 2 parts of aluminum silicate fiber, 30 parts of water and 0.2 part of auxiliary material;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the porous elastomer is a porous polyurethane material with the negative poisson ratio, the microcosmic cell structure is a chiral structure, and the aperture is 100-500 mu m;
in the sound insulation paint formula containing the particles with negative poisson ratio, the emulsion acrylic emulsion and the styrene-butadiene emulsion are mixed in a ratio of 1:1;
in the formula of the sound insulation coating containing the particles with the negative poisson ratio, the particle size of the hollow glass beads is 0.3mm, the particle size of the mica powder is 200 meshes, and the length of the aluminum silicate fibers is 5mm;
in the formula of the sound insulation coating containing the particles with the negative poisson ratio, the auxiliary materials comprise a defoaming agent, a dispersing agent, a wetting agent, a silane coupling agent, a thickening agent, a flame retardant and a bactericide;
according to the above formulation, the preparation method of the sound insulation coating containing the negative poisson's ratio particles in the embodiment comprises the following steps:
step 1: sequentially adding a defoaming agent, a dispersing agent, a wetting agent, a thickening agent and a silane coupling agent into water at room temperature, mixing and stirring uniformly to obtain a material aqueous solution, wherein the stirring speed is 300 rpm/min, and the stirring time is 5 min;
step 2: sequentially adding mica powder, hollow glass beads and porous elastomer into the material aqueous solution, mixing and stirring uniformly, wherein the stirring speed is 1000 rpm/min, and the stirring time is 10 min;
step 3: adding the emulsion in the step 2, wherein the stirring speed is 700 rpm/min, and the stirring time is 3 min;
Step 4: adding aluminum silicate fibers into the solution prepared in the step 3, uniformly mixing and stirring, adding a flame retardant and a bactericide, stirring at 1200 rpm/min for 15 min, and obtaining the required sound insulation coating containing particles with negative poisson ratio.
Example 2
A sound insulation coating containing particles with negative poisson ratio comprises the following components in parts by weight: 10 parts of porous elastomer, 20 parts of emulsion, 1 part of hollow glass microsphere, 4 parts of mica powder, 2 parts of aluminum silicate fiber, 30 parts of water and 0.3 part of auxiliary material;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the porous elastomer is a porous polyurethane material with the negative poisson ratio, the microcosmic cellular structure is a concave honeycomb structure, and the aperture is 100-500 mu m;
in the sound insulation paint formula containing the particles with negative poisson ratio, the emulsion acrylic emulsion and the styrene-butadiene emulsion are mixed in a ratio of 1:1;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the particle size of the hollow glass beads is 0.5mm, the particle size of the mica powder is 1250 meshes, and the length of the aluminum silicate fibers is 5mm;
in the formula of the sound insulation coating containing the particles with the negative poisson ratio, the auxiliary materials comprise a defoaming agent, a dispersing agent, a wetting agent, a silane coupling agent, a thickening agent, a flame retardant and a bactericide;
according to the above formulation, the preparation method of the sound insulation coating containing the negative poisson ratio particles in the embodiment comprises the following steps:
step 1: sequentially adding a defoaming agent, a dispersing agent, a wetting agent, a thickening agent and a silane coupling agent into water at room temperature, mixing and stirring uniformly to obtain a material aqueous solution, wherein the stirring speed is 300 rpm/min, and the stirring time is 5 min;
step 2: sequentially adding mica powder, hollow glass beads and porous elastomer into the material aqueous solution, mixing and stirring uniformly, wherein the stirring speed is 1000 rpm/min, and the stirring time is 10 min;
step 3: adding the emulsion in the step 2, wherein the stirring speed is 700 rpm/min, and the stirring time is 3 min;
Step 4: adding aluminum silicate fibers into the solution prepared in the step 3, mixing and stirring uniformly, adding a flame retardant and a bactericide, stirring at 1200 rpm/min for 15 min, and obtaining the required high-performance floor sound insulation coating.
Example 3
The sound insulation coating containing the negative poisson ratio particles comprises the following components in parts by weight: 15 parts of porous elastomer, 23 parts of emulsion, 1 part of hollow glass microsphere, 4 parts of mica powder, 2 parts of aluminum silicate fiber, 30 parts of water and 0.3 part of auxiliary material;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the porous elastomer is a porous polyurethane material with the negative poisson ratio, the microcosmic cell structure is an internal chiral structure, and the aperture is 100-500 mu m;
in the sound insulation paint formula containing the particles with negative poisson ratio, the emulsion acrylic emulsion and the styrene-butadiene emulsion are mixed in a ratio of 1:1;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the particle size of the hollow glass beads is 0.5mm, the particle size of the mica powder is 200 meshes, and the length of the aluminum silicate fibers is 5mm;
in the formula of the sound insulation coating containing the particles with the negative poisson ratio, the auxiliary materials comprise a defoaming agent, a dispersing agent, a wetting agent, a silane coupling agent, a thickening agent, a flame retardant and a bactericide;
according to the above formulation, the preparation method of the sound insulation coating containing the negative poisson's ratio particles in the embodiment comprises the following steps:
step 1: sequentially adding a defoaming agent, a dispersing agent, a wetting agent, a thickening agent and a silane coupling agent into water at room temperature, mixing and stirring uniformly to obtain a material aqueous solution, wherein the stirring speed is 300 rpm/min, and the stirring time is 5 min;
step 2: sequentially adding mica powder, hollow glass beads and porous elastomer into the material aqueous solution, mixing and stirring uniformly, wherein the stirring speed is 1000 rpm/min, and the stirring time is 10 min;
step 3: adding the emulsion in the step 2, wherein the stirring speed is 700 rpm/min, and the stirring time is 3 min;
Step 4: adding aluminum silicate fibers into the solution prepared in the step 3, uniformly mixing and stirring, adding a flame retardant and a bactericide, stirring at 1200 rpm/min for 15 min, and obtaining the required sound insulation coating containing particles with negative poisson ratio.
Example 4
A sound insulation coating containing particles with negative poisson ratio comprises the following components in parts by weight: 20 parts of porous elastomer, 23 parts of emulsion, 1 part of hollow glass microsphere, 4 parts of mica powder, 2 parts of aluminum silicate fiber, 35 parts of water and 0.3 part of auxiliary material;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the porous elastomer is a porous polyurethane material with the negative poisson ratio, the microcosmic cellular structure is a concave honeycomb structure, and the aperture is 100-500 mu m;
in the sound insulation paint formula containing the particles with negative poisson ratio, the emulsion acrylic emulsion and the styrene-butadiene emulsion are mixed in a ratio of 1:1;
In the formula of the sound insulation coating containing the particles with the negative poisson ratio, the particle size of the hollow glass beads is 0.5mm, the particle size of the mica powder is 200 meshes, and the length of the aluminum silicate fibers is 5mm;
in the formula of the sound insulation coating containing the particles with the negative poisson ratio, the auxiliary materials comprise a defoaming agent, a dispersing agent, a wetting agent, a silane coupling agent, a thickening agent, a flame retardant and a bactericide;
according to the above formulation, the preparation method of the sound insulation coating containing the negative poisson's ratio particles in the embodiment comprises the following steps:
step 1: sequentially adding a defoaming agent, a dispersing agent, a wetting agent, a thickening agent and a silane coupling agent into water at room temperature, mixing and stirring uniformly to obtain a material aqueous solution, wherein the stirring speed is 300 rpm/min, and the stirring time is 5 min;
step 2: sequentially adding mica powder, hollow glass beads and porous elastomer into the material aqueous solution, mixing and stirring uniformly, wherein the stirring speed is 1000 rpm/min, and the stirring time is 10 min;
step 3: adding the emulsion in the step 2, wherein the stirring speed is 700 rpm/min, and the stirring time is 3 min;
Step 4: adding aluminum silicate fibers into the solution prepared in the step 3, uniformly mixing and stirring, adding a flame retardant and a bactericide, stirring at 1200 rpm/min for 15 min, and obtaining the required sound insulation coating containing particles with negative poisson ratio.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (1)
1. A sound-insulating coating containing particles with negative poisson's ratio, which is characterized in that: the composite material comprises, by weight, 5-20 parts of porous elastomer, 5-30 parts of emulsion, 1-3 parts of hollow glass beads, 3-5 parts of mica powder, 2-3 parts of aluminum silicate fiber, 20-40 parts of water and 0.2-0.5 part of auxiliary materials;
the porous elastomer is a porous polymeric material having a negative poisson's ratio;
The porous polymer material is at least one of polyurethane, epoxy resin, ethylene-vinyl acetate and organic silicon resin;
the microcosmic cell construction mode of the porous polymer material is at least one of a concave honeycomb structure, a chiral structure and a rotary rigid structure;
The pore diameter of the porous polymer material is 100-500 mu m;
the emulsion is one or any two of acrylic emulsion, styrene-butadiene emulsion, polyurethane emulsion, epoxy resin emulsion and ethylene-vinyl acetate emulsion;
the particle size of the hollow glass beads is 0.1-1 mm, the particle size of the mica powder is 200-2000 meshes, and the length of the aluminum silicate fiber is 3-5mm;
The auxiliary materials comprise 0.04 part of defoaming agent, 0.06 part of cellulose ether, 0.02 part of dispersing agent, 0.03 part of wetting agent, 0.02 part of film forming auxiliary agent, 0.02 part of silane coupling agent, 0.01 part of thickening agent and 0.02 part of bactericide.
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| CN202211527776.XA CN116254025B (en) | 2022-12-01 | 2022-12-01 | Sound insulation coating containing negative poisson ratio particles and preparation method thereof |
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| CN202211527776.XA CN116254025B (en) | 2022-12-01 | 2022-12-01 | Sound insulation coating containing negative poisson ratio particles and preparation method thereof |
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| CN116254025B true CN116254025B (en) | 2024-06-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2583463C1 (en) * | 2015-01-12 | 2016-05-10 | Олег Савельевич Кочетов | Sound-absorbing coating |
| CN107667194A (en) * | 2015-06-04 | 2018-02-06 | 伊斯曼柯达公司 | Foaming aqueous composition |
| CN108642640A (en) * | 2018-05-03 | 2018-10-12 | 东华大学 | A kind of preparation method and purposes of rigidity gradient auxetic materials |
| CN115260843A (en) * | 2022-07-02 | 2022-11-01 | 广州华镒节能科技集团有限公司 | Water-based micro-elastic sound-insulation heat-preservation coating and preparation method thereof |
-
2022
- 2022-12-01 CN CN202211527776.XA patent/CN116254025B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2583463C1 (en) * | 2015-01-12 | 2016-05-10 | Олег Савельевич Кочетов | Sound-absorbing coating |
| CN107667194A (en) * | 2015-06-04 | 2018-02-06 | 伊斯曼柯达公司 | Foaming aqueous composition |
| CN108642640A (en) * | 2018-05-03 | 2018-10-12 | 东华大学 | A kind of preparation method and purposes of rigidity gradient auxetic materials |
| CN115260843A (en) * | 2022-07-02 | 2022-11-01 | 广州华镒节能科技集团有限公司 | Water-based micro-elastic sound-insulation heat-preservation coating and preparation method thereof |
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| CN116254025A (en) | 2023-06-13 |
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