CN112724646B - Sponge of making an uproar falls in falling sound - Google Patents
Sponge of making an uproar falls in falling sound Download PDFInfo
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- CN112724646B CN112724646B CN202011593667.9A CN202011593667A CN112724646B CN 112724646 B CN112724646 B CN 112724646B CN 202011593667 A CN202011593667 A CN 202011593667A CN 112724646 B CN112724646 B CN 112724646B
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- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0815—Acoustic or thermal insulation of passenger compartments
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- 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
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
-
- 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
- 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
- C08J9/0085—Use of fibrous compounding ingredients
-
- 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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- 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
- C08J9/36—After-treatment
- C08J9/365—Coating
-
- 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
-
- 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
- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of automotive interior, in particular to a sound-reducing and noise-reducing sponge, which comprises the following components in parts by mass: 40-60 parts of polyurethane, 30-50 parts of lake algae powder, 2-8 parts of magnesium-rich fibrous silicate clay mineral, 6-12 parts of melamine, 2-5 parts of halogen-free flame retardant, 2-6 parts of antistatic agent and 0.1-0.6 part of broad-spectrum bactericide; a plurality of sound-reducing holes which are communicated with each other are formed in the sound-reducing and noise-reducing sponge, and the structure of each sound-reducing hole is vortex-shaped; according to the sound-reducing and noise-reducing sponge, the lake algae powder is added into the sound-reducing and noise-reducing sponge, so that the sound absorption coefficient is remarkably increased, and the sound-reducing and noise-reducing effect is remarkable; after the holes in the sound-reducing and noise-reducing sponge are designed into a plurality of vortex-shaped structures which are communicated, the sound absorption coefficient is obviously increased, and the sound-reducing and noise-reducing effects are obvious.
Description
Technical Field
The invention relates to the technical field of automotive interior, in particular to a sound-reducing and noise-reducing sponge.
Background
The automotive interior mainly comprises the following subsystems: instrument panel systems, sub-instrument panel systems, door trim systems, ceiling systems, seat systems, pillar trim systems, remaining cab interior trim systems, cab air circulation systems, trunk trim systems, engine compartment interior trim systems, carpets, safety belts, airbags, steering wheels, and interior lighting, interior acoustic systems, and the like.
The sound insulation of the automobile is to apply sound insulation data to stop improvement aiming at various noises so as to achieve the working method of attenuating the effect of environmental noise in a carriage, and the sound insulation material needs to resist high temperature and fire so as to meet the requirement of safety. The sound insulation method is that sound insulation material isolates a sound source from a carriage, so that the radiated noise can not be directly or resonantly transmitted to the carriage, thereby achieving the purpose of controlling the noise.
The sponge that inhales gives sound insulation and falls and make an uproar is mostly adopted to current car, but the effect of making an uproar falls of the sponge that inhales now is limited, and inhales the easy deposition of sound sponge itself, and what be poor inhales sound sponge formaldehyde content exceeds standard, or contains other polluting components.
Disclosure of Invention
The purpose of the invention is: overcome not enough among the prior art, provide a green's sponge of making an uproar falls in sound reduction, automotive interior adopts this sponge of making an uproar falls in sound insulation and falls the back, and the effect of making an uproar is showing.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the sponge for reducing the noise comprises the following components in parts by mass: 40-60 parts of polyurethane, 30-50 parts of lake algae powder, 2-8 parts of magnesium-rich fibrous silicate clay mineral, 6-12 parts of melamine, 2-5 parts of halogen-free flame retardant, 2-6 parts of antistatic agent and 0.1-0.6 part of broad-spectrum bactericide;
the sound-reducing and noise-reducing sponge is internally provided with a plurality of sound-reducing holes which are communicated with each other, and the structure of the sound-reducing holes is vortex-shaped.
Furthermore, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.08-0.12 μm.
Furthermore, the surface of the noise-reducing and noise-reducing sponge is concave-convex, the concave-convex structure is composed of a plurality of wave-shaped convex edges, and the top of each wave-shaped convex edge is an arc-shaped surface.
Furthermore, the plurality of wave-shaped convex edges are parallel to each other and arranged at equal intervals, the height of the plurality of wave-shaped convex edges is 1/5-1/3 of the thickness of the sponge, and the sections of the plurality of wave-shaped convex edges are triangular.
Further, the particle size of the lake algae powder is 10-80 μm.
Further, the halogen-free flame retardant is one or more of ammonium polyphosphate, expanded graphite, melamine phosphate, zinc borate and TGIC.
Further, the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1 (1-3) to 1.1-1.6.
Furthermore, the antistatic agent is one or more of betaine, alkyl imidazoline salt and alkyl amino acid.
Furthermore, the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid, and the mass ratio of the betaine to the alkyl imidazoline salt to the alkyl amino acid is 1 (1.2-2.5) to 1.2-1.3.
Further, the sound-reducing and noise-reducing sponge comprises the following components in parts by mass: 50 parts of polyurethane, 40 parts of lake algae powder, 5 parts of magnesium-rich fibrous silicate clay mineral, 9 parts of melamine, 3.5 parts of halogen-free flame retardant, 4 parts of antistatic agent and 0.4 part of broad-spectrum bactericide.
The technical scheme adopted by the invention has the beneficial effects that:
according to the sound-reducing and noise-reducing sponge, the lake algae powder is added into the sound-reducing and noise-reducing sponge, so that the sound absorption coefficient is remarkably increased, and the sound-reducing and noise-reducing effect is remarkable; after the holes in the sound-reducing and noise-reducing sponge are designed into a plurality of vortex-shaped structures which are communicated with each other, the sound absorption coefficient is obviously increased, and the sound-reducing and noise-reducing effects are obvious.
The surface of the noise-reducing and noise-reducing sponge is concave-convex, the concave-convex structure is formed by a plurality of wave-shaped convex edges, the top of each wave-shaped convex edge is an arc-shaped surface, the wave-shaped convex edges are parallel to each other and are arranged at equal intervals, the height of the wave-shaped convex edges is 1/5 of the thickness of the sponge, and the sections of the wave-shaped convex edges are triangular, so that the noise-reducing and noise-reducing effects of the sponge are further improved.
The sound-reducing and noise-reducing sponge improves the use safety because the surface is coated with the antistatic coating, the melamine is added into the formula, so that the sponge can work under the working condition of 140 ℃ for a long time, can work under the working condition of 170 ℃ for a short time, has no volatilization and deformation phenomena, has obvious volatilization phenomena only when being in a high-temperature environment of more than 350 ℃, further improves the use safety,
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
The sponge for reducing the noise comprises the following components in parts by mass: 40 parts of polyurethane, 30 parts of lake algae powder, 2 parts of magnesium-rich fibrous silicate clay mineral, 6 parts of melamine, 2 parts of halogen-free flame retardant, 2 parts of antistatic agent and 0.1 part of broad-spectrum bactericide; the sound-reducing and noise-reducing sponge is internally provided with a plurality of sound-reducing holes which are communicated with each other, the sound-reducing holes are vortex-shaped, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.08 mu m; the particle size of the lake algae powder is 10 μm.
The surface of the sponge of making an uproar falls in the falling sound is concave-convex form, and concave-convex structure comprises a plurality of wave bead, and the top of every wave bead is the arcwall face, and a plurality of wave bead are parallel to each other and equidistant setting, and the height of a plurality of wave bead is 1/5 of sponge thickness, and the section of a plurality of wave bead is triangle-shaped.
Wherein the halogen-free flame retardant is selected from ammonium polyphosphate.
Wherein, the antistatic agent is betaine.
Example 2
The sponge for reducing the noise comprises the following components in parts by mass: 45 parts of polyurethane, 35 parts of lake algae powder, 3 parts of magnesium-rich fibrous silicate clay mineral, 7 parts of melamine, 2.5 parts of halogen-free flame retardant, 3 parts of antistatic agent and 0.2 part of broad-spectrum bactericide; the sound reducing and noise reducing sponge is internally provided with a plurality of sound reducing holes which are communicated with each other, the sound reducing holes are vortex-shaped, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.09 mu m; the particle size of the lake algae powder is 20 μm.
The surface of the sponge of making an uproar falls in the falling sound is concave-convex form, and concave-convex structure comprises a plurality of wave bead, and the top of every wave bead is the arcwall face, and a plurality of wave bead are parallel to each other and equidistant setting, and the height of a plurality of wave bead is 1/5 of sponge thickness, and the section of a plurality of wave bead is triangle-shaped.
Wherein the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1:1: 1.1.
Wherein, the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid, and the mass ratio of the betaine to the alkyl imidazoline salt to the alkyl amino acid is 1:1.2: 1.2.
Example 3
The sponge for reducing the noise comprises the following components in parts by mass: the sponge for reducing noise comprises the following components in parts by weight: 50 parts of polyurethane, 40 parts of lake algae powder, 5 parts of magnesium-rich fibrous silicate clay mineral, 9 parts of melamine, 3.5 parts of halogen-free flame retardant, 4 parts of antistatic agent and 0.4 part of broad-spectrum bactericide; the sound-reducing and noise-reducing sponge is internally provided with a plurality of sound-reducing holes which are communicated with each other, the sound-reducing holes are vortex-shaped, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.1 mu m; the particle size of the lake algae powder is 40 μm.
The surface of the sponge for lowering the noise is concave-convex, the concave-convex structure is composed of a plurality of wave-shaped convex edges, the top of each wave-shaped convex edge is an arc-shaped surface, the wave-shaped convex edges are parallel to each other and are arranged at equal intervals, the height of the wave-shaped convex edges is 1/5-1/3 of the thickness of the sponge, and the sections of the wave-shaped convex edges are triangular.
Wherein the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1:2: 1.5.
Wherein, the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid, and the mass ratio of the betaine to the alkyl imidazoline salt to the alkyl amino acid is 1:1.8: 1.2.
Example 4
The sponge for reducing the noise comprises the following components in parts by mass: 50 parts of polyurethane, 45 parts of lake algae powder, 7 parts of magnesium-rich fibrous silicate clay mineral, 10 parts of melamine, 4 parts of halogen-free flame retardant, 5 parts of antistatic agent and 0.5 part of broad-spectrum bactericide; the sound reducing and noise reducing sponge is internally provided with a plurality of sound reducing holes which are communicated with each other, the sound reducing holes are vortex-shaped, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.11 mu m; the particle size of the lake algae powder is 70 μm.
The surface of the sponge for lowering the noise is concave-convex, the concave-convex structure is composed of a plurality of wave-shaped convex edges, the top of each wave-shaped convex edge is an arc-shaped surface, the wave-shaped convex edges are parallel to each other and are arranged at equal intervals, the height of the wave-shaped convex edges is 1/5-1/3 of the thickness of the sponge, and the sections of the wave-shaped convex edges are triangular.
Wherein the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1:2.5: 1.5.
Wherein, the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid, and the mass ratio of the betaine to the alkyl imidazoline salt to the alkyl amino acid is 1:2.4: 1.2.
Example 5
The sponge for reducing the noise comprises the following components in parts by mass: 60 parts of polyurethane, 50 parts of lake algae powder, 8 parts of magnesium-rich fibrous silicate clay mineral, 12 parts of melamine, 5 parts of halogen-free flame retardant, 6 parts of antistatic agent and 0.6 part of broad-spectrum bactericide; the sound reducing and noise reducing sponge is internally provided with a plurality of sound reducing holes which are communicated with each other, the sound reducing holes are vortex-shaped, the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.12 mu m; the particle size of the lake algae powder is 80 μm.
The surface of the sponge of making an uproar falls in the falling sound is concave-convex form, and concave-convex structure comprises a plurality of wave bead, and the top of every wave bead is the arcwall face, and a plurality of wave bead are parallel to each other and equidistant setting, and the height of a plurality of wave bead is 1/3 of sponge thickness, and the section of a plurality of wave bead is triangle-shaped.
Wherein the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1:3: 1.6.
Wherein, the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid with the mass ratio of 1:2.5: 1.3.
Comparative example 1
In comparative example 1, lake algae powder was not added, and other ingredients were the same as in example 3.
Comparative example 2
The pores in comparative example 2 were the usual irregular pores, and other ingredients were the same as in example 3.
The noise-reducing sponge in each embodiment is prepared by a conventional preparation method.
The relevant performance tests were performed on examples 1 to 5 and comparative examples 1 to 2, and the test items and test results are shown in table 1.
TABLE 1
As can be seen from the data in Table 1, the addition of lake algae powder to the sound-reducing and noise-reducing sponge significantly increases the sound absorption coefficient and significantly reduces the sound-reducing and noise-reducing effects. After the holes in the sound-reducing and noise-reducing sponge are designed into a plurality of through vortex-shaped structures, the sound absorption coefficient is obviously increased, and the sound-reducing and noise-reducing effects are obvious.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment contains only one independent claim, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a sponge of making an uproar falls in sound reduction which characterized in that: the sound-reducing and noise-reducing sponge comprises the following components in parts by mass: 40-60 parts of polyurethane, 30-50 parts of lake algae powder, 2-8 parts of magnesium-rich fibrous silicate clay mineral, 6-12 parts of melamine, 2-5 parts of halogen-free flame retardant, 2-6 parts of antistatic agent and 0.1-0.6 part of broad-spectrum bactericide;
a plurality of sound-deadening holes which are communicated with each other are formed in the sound-reducing and noise-reducing sponge, and the structure of each sound-deadening hole is vortex;
the surface of the sponge is provided with an antistatic coating, and the thickness of the antistatic coating is 0.08-0.12 mu m;
the surface of the sound-reducing and noise-reducing sponge is concave-convex, the concave-convex structure is formed by a plurality of wavy convex edges, and the top of each wavy convex edge is an arc-shaped surface;
the plurality of wave-shaped convex edges are parallel to each other and arranged at equal intervals, the height of the plurality of wave-shaped convex edges is 1/5-1/3 of the thickness of the sponge, and the sections of the plurality of wave-shaped convex edges are triangular.
2. A sound and noise reducing sponge according to claim 1, wherein: the particle size of the lake algae powder is 10-80 μm.
3. A sound and noise reducing sponge according to claim 1, wherein: the halogen-free flame retardant is one or more of ammonium polyphosphate, expanded graphite, melamine phosphate, zinc borate and TGIC.
4. A sound and noise reducing sponge according to claim 1, wherein: the halogen-free flame retardant is a mixture of expanded graphite, melamine phosphate and zinc borate, and the mass ratio of the mixture to the halogen-free flame retardant is 1 (1-3) to 1.1-1.6.
5. A sound and noise reducing sponge according to claim 1, wherein: the antistatic agent is one or more of betaine, alkyl imidazoline salt and alkyl amino acid.
6. A sound and noise reducing sponge according to claim 1, wherein: the antistatic agent is a mixture of betaine, alkyl imidazoline salt and alkyl amino acid, and the mass ratio of the betaine to the alkyl imidazoline salt to the alkyl amino acid is 1 (1.2-2.5) to 1.2-1.3.
7. A sound and noise reducing sponge according to claim 1, wherein: the sound-reducing and noise-reducing sponge comprises the following components in parts by mass: 50 parts of polyurethane, 40 parts of lake algae powder, 5 parts of magnesium-rich fibrous silicate clay mineral, 9 parts of melamine, 3.5 parts of halogen-free flame retardant, 4 parts of antistatic agent and 0.4 part of broad-spectrum bactericide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011593667.9A CN112724646B (en) | 2020-12-29 | 2020-12-29 | Sponge of making an uproar falls in falling sound |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011593667.9A CN112724646B (en) | 2020-12-29 | 2020-12-29 | Sponge of making an uproar falls in falling sound |
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| CN112724646A CN112724646A (en) | 2021-04-30 |
| CN112724646B true CN112724646B (en) | 2022-05-20 |
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Citations (5)
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| CN101805513A (en) * | 2010-04-12 | 2010-08-18 | 无锡市井上海绵有限公司 | Method for producing environmental-protection type sound-absorbing and flame-retardant sponge |
| CN105314935A (en) * | 2015-10-21 | 2016-02-10 | 严晗 | Energy-saving and environment-friendly sound insulation and heat preservation method for building inner wall |
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| KR20180046885A (en) * | 2016-10-28 | 2018-05-09 | 주식회사 세안 | Organic-inorganic hybrid materials for reducing the floor noise and manufacturing method of the same |
| CN211075439U (en) * | 2019-11-13 | 2020-07-24 | 一汽解放汽车有限公司 | Air duct assembly and automobile air conditioning system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030134553A1 (en) * | 2002-01-14 | 2003-07-17 | L.S.I. (420) Import Export And Marketing Ltd. | Sound absorbing article |
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2020
- 2020-12-29 CN CN202011593667.9A patent/CN112724646B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805513A (en) * | 2010-04-12 | 2010-08-18 | 无锡市井上海绵有限公司 | Method for producing environmental-protection type sound-absorbing and flame-retardant sponge |
| CN105314935A (en) * | 2015-10-21 | 2016-02-10 | 严晗 | Energy-saving and environment-friendly sound insulation and heat preservation method for building inner wall |
| KR20180046885A (en) * | 2016-10-28 | 2018-05-09 | 주식회사 세안 | Organic-inorganic hybrid materials for reducing the floor noise and manufacturing method of the same |
| CN206983420U (en) * | 2017-05-13 | 2018-02-09 | 安徽省一鸣新材料科技有限公司 | A kind of foamed aluminium composite sound-absorbing structure |
| CN211075439U (en) * | 2019-11-13 | 2020-07-24 | 一汽解放汽车有限公司 | Air duct assembly and automobile air conditioning system |
Non-Patent Citations (2)
| Title |
|---|
| Fabrication of polyurethane composite foams with magnesium hydroxide filler for improved sound absorption;Sung, Giwook，等;《JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY》;20161231;第44卷;第99-104页 * |
| 基于纳米技术湖藻吸音减震板材的研究;王明娣，等;《苏州大学学报》;20060228;第26卷(第1期);第1-4页 * |
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| CN112724646A (en) | 2021-04-30 |
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Effective date of registration: 20221116 Address after: No. 8-15, Park Road, Industrial Park, Xuebu Town, Jintan District, Changzhou City, Jiangsu Province, 213200 Patentee after: Changzhou Oxygen Plus Environmental Protection Technology Co.,Ltd. Address before: 213001 No.126, Hanjiang Road, Xinbei District, Changzhou City, Jiangsu Province Patentee before: Changzhou Xietai Auto Accessories Co.,Ltd. |