CN109320132B - Sound-absorbing heat-insulating material - Google Patents
Sound-absorbing heat-insulating material Download PDFInfo
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- CN109320132B CN109320132B CN201811221898.XA CN201811221898A CN109320132B CN 109320132 B CN109320132 B CN 109320132B CN 201811221898 A CN201811221898 A CN 201811221898A CN 109320132 B CN109320132 B CN 109320132B
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- sound
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/045—Polyalkenes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention provides a sound-absorbing and heat-insulating material which comprises the following raw materials in parts by weight: 85-95 parts of fiber raw material and 5-15 parts of adhesive; wherein the fiber raw material comprises glass fiber and pre-oxidized fiber in a weight ratio of 1: 0.25-5. In addition, the invention provides sound-absorbing and heat-insulating paper or a sound-absorbing and heat-insulating felt produced by using the materials, the product overcomes the defects that glass fiber paper (felt) is easy to tear, impact-resistant, pressure-resistant, wear-resistant, low in mechanical strength, easy to generate glass fiber dust and the like, further improves the sound absorption performance, the heat insulation performance and the heat-resistant alternation performance, greatly improves the application range and the application field, and has some excellent performances of organic materials.
Description
Technical Field
The invention relates to the field of sound absorption and heat insulation materials, in particular to a sound absorption and heat insulation material.
Background
Sound originates from the vibration of an object, which causes the vibration of the adjacent air to form sound waves, which propagate in the air medium all around. When sound is transmitted to the surface of the member material, a portion of the sound energy is reflected, a portion penetrates the material, and a portion of the sound energy is converted to heat energy by friction with the surrounding medium due to vibration of the member material or the sound propagating therein, and the sound energy is lost, i.e., the sound is absorbed by the material. The sound absorption material which has good sound absorption effect and other excellent physical and mechanical properties and is produced by utilizing the principle is a problem to be solved urgently in architectural decoration and other fields.
The pre-oxidized fiber is polyacrylonitrile fiber with a carbonization rate of less than 90%, is an intermediate product for carbon fiber production, and has no conductivity because of incomplete carbonization. However, the high carbon content makes the fiber have a plurality of excellent properties compared with common organic fibers: the strength and modulus of the fiber are far superior to those of common fiber, the fiber has the temperature resistance of 500 ℃, is not easy to burn, has low heat conductivity coefficient and high sound absorption (50-5000HZ) coefficient, has less application research in the industry, and has wide application prospect in producing sound absorption materials by utilizing the performance of the fiber.
Disclosure of Invention
The invention aims to provide a sound-absorbing and heat-insulating material produced by utilizing the excellent physical and chemical properties of pre-oxidized fiber.
The technical scheme for solving the technical problems is as follows: the sound-absorbing and heat-insulating material is characterized by comprising the following raw materials in parts by weight:
85-95 parts of fiber raw materials;
5-15 parts of an adhesive;
wherein the fiber raw material comprises glass fiber and pre-oxidized fiber in a weight ratio of 1: 0.25-5.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the glass fiber is a chopped glass fiber with the diameter of 8-12 μm, and the pre-oxidized fiber is a chopped pre-oxidized fiber with the diameter of 8-12 μm.
Furthermore, the adhesive is one or a mixture of a plurality of water-soluble resin glues commonly used in the markets, such as acrylic acid, polyvinyl alcohol, phenolic aldehyde, urea aldehyde or wood glue, in any proportion.
Further, the adhesive is organic fiber, and the glass fiber and the pre-oxidized fiber are mutually bonded after being hot-melted by the organic fiber.
Further, the organic fiber is one or a mixture of polyethylene, polypropylene or polyester in any proportion.
In addition, the invention also provides a production method of the sound-absorbing and heat-insulating paper or felt, which comprises the following steps: and dispersing and pulping the sound-absorbing and heat-insulating material, molding, gluing, drying and rolling to obtain a finished product.
In addition, the invention also provides sound-absorbing heat-insulating paper or a sound-absorbing heat-insulating felt produced by the method.
The invention has the beneficial effects that: compared with inorganic fiber, the pre-oxidized fiber has good physical and mechanical properties and high flexibility, and paper (felt) produced by a wet papermaking process after being mixed with the inorganic glass fiber has the characteristics of inorganic glass fiber paper (felt), overcomes the defects of easy tearing, impact resistance, pressure resistance, wear resistance, low mechanical strength, easy generation of glass fiber dust and the like of the glass fiber paper (felt), further improves the sound absorption property, the heat insulation property and the heat-resistant alternation property, greatly improves the application range and the application field, and has some excellent properties of organic materials.
Detailed Description
The principles and features of this invention are described below in conjunction with specific embodiments, which are set forth merely to illustrate the invention and are not intended to limit the scope of the invention.
Example 1
The sound-absorbing and heat-insulating material comprises the following raw materials in parts by weight:
90 parts of fiber raw materials;
10 parts of an adhesive;
the fiber raw material comprises glass fibers and pre-oxidized fiber fibers in a weight ratio of 1:0.25, the glass fibers are chopped glass fibers with the diameter of 8 mu m, the pre-oxidized fiber fibers are chopped pre-oxidized fiber fibers with the diameter of 12 mu m, and the adhesive is polyvinyl alcohol.
Putting the fiber raw material into a fluffer, adding a proper amount of water (the weight ratio of the water to the raw material is 1-100 parts according to different production processes), uniformly dispersing the raw material in the water, and performing wet forming by a fourdrinier. Spraying the adhesive on the formed wet felt, drying the moisture in an oven, curing the adhesive, and winding by using a reel to obtain the sound-absorbing and heat-insulating felt. The sound-absorbing and heat-insulating felt is good in sound-absorbing performance, green, environment-friendly, pollution-free, safe and reliable, and can be widely applied to building materials, decorative board inner layers and indoor functional decorative materials.
Example 2
The sound-absorbing and heat-insulating material comprises the following raw materials in parts by weight:
95 parts of fiber raw materials;
5 parts of an adhesive;
the fiber raw material comprises glass fibers and pre-oxidized fiber in a weight ratio of 1:4, the glass fibers are chopped glass fibers with the diameter of 12 mu m, the pre-oxidized fiber is chopped pre-oxidized fiber with the diameter of 8 mu m, and the adhesive is organic fiber. Specifically, the organic fiber is a mixture of polyethylene and polypropylene in a weight ratio of 1: 1. And (3) the glass fiber, the pre-oxidized fiber and the organic fiber are mutually bonded after being subjected to hot melting.
The fiber raw materials are put into a fluffer, a proper amount of water is added, the raw materials are uniformly dispersed in the water, and the wet forming is carried out by a fourdrinier machine. And spraying the adhesive on the formed wet paper, drying the moisture in an oven, solidifying the adhesive, and winding by using a reel to obtain the sound-absorbing and heat-insulating paper. The sound-absorbing and heat-insulating paper is good in sound-absorbing performance, green, environment-friendly, pollution-free, safe and reliable, and can be widely applied to product equipment needing sound absorption and heat insulation.
Example 3
The sound-absorbing and heat-insulating material comprises the following raw materials in parts by weight:
92 parts of fiber raw materials;
8 parts of an adhesive;
the fiber raw material comprises glass fibers and pre-oxidized fiber fibers in a weight ratio of 1:1, the glass fibers are chopped glass fibers with the diameter of 10 mu m, the pre-oxidized fiber fibers are chopped pre-oxidized fiber fibers with the diameter of 10 mu m, and the adhesive is polyethylene organic fibers. And (3) the glass fiber, the pre-oxidized fiber and the organic fiber are mutually bonded after being subjected to hot melting.
The fiber raw materials are put into a fluffer, a proper amount of water is added, the raw materials are uniformly dispersed in the water, and the wet forming is carried out by a fourdrinier machine. And spraying the adhesive on the formed wet paper, drying the moisture in an oven, solidifying the adhesive, and winding by using a reel to obtain the sound-absorbing and heat-insulating paper. The sound-absorbing and heat-insulating paper has good sound-absorbing performance, is green, environment-friendly, pollution-free, safe and reliable, and can be widely applied to products and/or equipment needing sound absorption and heat insulation.
The results of the sound-absorbing and heat-insulating property test (sound absorption coefficient α) performed on the sound-absorbing and heat-insulating felt produced in example 1 are shown in the following table:
the sound absorption coefficient refers to the amount of sound absorbing material or sound absorbing structure performance, different materials having different sound absorbing capabilities. When alpha is 0, the acoustic energy is totally reflected, and the material does not absorb sound; when α is 1, it means that the material absorbs all the sound energy and does not reflect. The sound absorption coefficient of the general material is between 0 and 1, and the larger the sound absorption coefficient alpha is, the better the sound absorption performance of the material is. The above comparative examples were purchased from commercial products.
The results of characterizing the technical parameters of the sound-absorbing and heat-insulating paper prepared in example 2 are shown in the following table:
wherein, MD refers to a longitudinal index, and CD refers to a transverse index. The above comparative examples were purchased from commercial products.
The above comparative examples were obtained from commercially available sound and heat insulating mats made of glass fibers. From the above table, it can be seen that the sound-absorbing and heat-insulating felt produced by using the material provided by the invention has better sound absorption coefficient than the commercial sound-absorbing and heat-insulating felt with the same specification. In addition, the sound-absorbing and heat-insulating material provided by the invention has high mechanical strength, high toughness, difficult dust generation and high environmental friendliness, thereby having wide market application prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The sound-absorbing and heat-insulating material is characterized by comprising the following raw materials in parts by weight:
90-95 parts of fiber raw materials;
5-15 parts of an adhesive;
the fiber raw materials comprise glass fibers and pre-oxidized fiber fibers in a weight ratio of 1:0.25-4, the glass fibers are chopped glass fibers with the diameter of 8-12 mu m, the pre-oxidized fiber fibers are chopped pre-oxidized fiber fibers with the diameter of 8-12 mu m, the adhesive is organic fibers, the glass fibers and the pre-oxidized fiber fibers are mutually bonded after being melted by the organic fibers, and the organic fibers are one or a mixture of polyethylene, polypropylene or polyester in any proportion.
2. The production method of the sound-absorbing heat-insulating paper is characterized by comprising the following steps of: the sound-absorbing and heat-insulating material of claim 1 is subjected to dispersion pulping, molding, sizing, drying and rolling to obtain a finished product.
3. A sound absorbing and insulating paper made by the method of claim 2.
4. The production method of the sound-absorbing heat-insulating felt is characterized by comprising the following steps of: the sound-absorbing and heat-insulating material of claim 1 is subjected to dispersion pulping, molding, sizing, drying and rolling to obtain a finished product.
5. An acoustical and thermal blanket made by the method of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221898.XA CN109320132B (en) | 2018-10-19 | 2018-10-19 | Sound-absorbing heat-insulating material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221898.XA CN109320132B (en) | 2018-10-19 | 2018-10-19 | Sound-absorbing heat-insulating material |
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| Publication Number | Publication Date |
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| CN109320132A CN109320132A (en) | 2019-02-12 |
| CN109320132B true CN109320132B (en) | 2021-10-15 |
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| CN201811221898.XA Active CN109320132B (en) | 2018-10-19 | 2018-10-19 | Sound-absorbing heat-insulating material |
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| CN113386404A (en) * | 2021-06-17 | 2021-09-14 | 南通强生安全防护科技股份有限公司 | Thin high-temperature-resistant glove |
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| CN102619022A (en) * | 2012-04-24 | 2012-08-01 | 南通大学 | Composite interior material for motor car and preparation method thereof |
| EP2507039A1 (en) * | 2009-12-04 | 2012-10-10 | SGL Carbon SE | Production of a 3d textile structure and semi-finished fiber product made of fiber composites |
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| CN107538813A (en) * | 2017-08-28 | 2018-01-05 | 广德天运新技术股份有限公司 | A kind of heat-insulating soundproof damping fibrofelt and preparation method |
| CN108602473A (en) * | 2016-01-27 | 2018-09-28 | 欧拓管理公司 | Fluffy thermosetting property felt for sound attenuation |
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| FR2929364B1 (en) * | 2008-04-01 | 2010-06-04 | Valeo Materiaux De Friction Sa | FRICTION MATERIAL FOR FRICTION IN LIQUID MEDIA, DEVICE AND METHOD THEREFOR. |
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| CN1037386A (en) * | 1986-10-14 | 1989-11-22 | 陶氏化学公司 | Sound and thermal insulating material |
| JPH04233988A (en) * | 1990-12-28 | 1992-08-21 | Nippon Pillar Packing Co Ltd | Heat-resistant expandable member |
| CN1849422A (en) * | 2003-09-02 | 2006-10-18 | 名古屋油化株式会社 | Flame-retardant sheet and formed article therefrom |
| CN101000763A (en) * | 2006-01-10 | 2007-07-18 | 深圳市海川实业股份有限公司 | Acoustic board of glass fibre composite |
| EP2047135A1 (en) * | 2006-07-21 | 2009-04-15 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Friction system |
| JP2009215492A (en) * | 2008-03-12 | 2009-09-24 | Unitika Ltd | Glass fiber-reinforced resin composition, and method for producing the same |
| EP2507039A1 (en) * | 2009-12-04 | 2012-10-10 | SGL Carbon SE | Production of a 3d textile structure and semi-finished fiber product made of fiber composites |
| CN102619022A (en) * | 2012-04-24 | 2012-08-01 | 南通大学 | Composite interior material for motor car and preparation method thereof |
| CN103770320A (en) * | 2012-10-23 | 2014-05-07 | 吉林省泽希科技发展有限公司 | Preparation method for lightweight thermal insulation material |
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| CN203915812U (en) * | 2014-05-13 | 2014-11-05 | 武汉施迈尔节能科技有限公司 | Fireproof lifesaving blanket |
| CN104761869A (en) * | 2015-03-31 | 2015-07-08 | 赵晓明 | Preoxidized fiber felt/epoxy resin composite material product and preparation method thereof |
| CN108602473A (en) * | 2016-01-27 | 2018-09-28 | 欧拓管理公司 | Fluffy thermosetting property felt for sound attenuation |
| CN106762069A (en) * | 2016-11-22 | 2017-05-31 | 芜湖市元山机械制造有限公司 | A kind of high-termal conductivity heavy duty automobile exhaust tube |
| CN107538813A (en) * | 2017-08-28 | 2018-01-05 | 广德天运新技术股份有限公司 | A kind of heat-insulating soundproof damping fibrofelt and preparation method |
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| CN109320132A (en) | 2019-02-12 |
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