CN112065537A - Liquid-resistant, high-temperature-resistant and sound-absorbing cotton with good sound-absorbing effect - Google Patents

Liquid-resistant, high-temperature-resistant and sound-absorbing cotton with good sound-absorbing effect Download PDF

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Publication number
CN112065537A
CN112065537A CN202010895157.0A CN202010895157A CN112065537A CN 112065537 A CN112065537 A CN 112065537A CN 202010895157 A CN202010895157 A CN 202010895157A CN 112065537 A CN112065537 A CN 112065537A
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CN
China
Prior art keywords
sound
woven fabrics
parts
resistant
cotton
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Pending
Application number
CN202010895157.0A
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Chinese (zh)
Inventor
汪郁媚
朱贵春
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Changan Mazda Automobile Co Ltd
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Changan Mazda Automobile Co Ltd
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Priority to CN202010895157.0A priority Critical patent/CN112065537A/en
Publication of CN112065537A publication Critical patent/CN112065537A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/067—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/42—Glass
    • 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
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/12—Condensation polymers of aldehydes or ketones
    • C04B26/122—Phenol-formaldehyde condensation polymers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses sound-absorbing cotton with liquid resistance, high temperature resistance and good sound-absorbing effect, which is characterized in that: including first non-woven fabrics layer, inhale cotton main part of sound and second non-woven fabrics layer, the upper epidermis on first non-woven fabrics layer and the lower surface laminating of inhaling the cotton main part of sound, the lower top layer on second non-woven fabrics layer and the upper epidermis laminating of inhaling the cotton main part of sound, first non-woven fabrics layer adopts the fashioned PET non-woven fabrics of acupuncture technology, second non-woven fabrics layer is fire-retardant non-woven fabrics, second non-woven fabrics layer is close to automobile engine one side, inhale the cotton main part of sound and include the composition of following parts by weight: 83-88 parts of glass fiber and 12-17 parts of phenolic resin, wherein the glass fiber comprises the following components in parts by weight: 75-80 parts of silicon dioxide, 12-15 parts of potassium oxide, 1-3 parts of sodium oxide, 3-6 parts of calcium oxide and 0-1 part of aluminum oxide. The invention has the beneficial effects that: has good sound absorption performance and flame-retardant and liquid-resistant effects.

Description

Liquid-resistant, high-temperature-resistant and sound-absorbing cotton with good sound-absorbing effect
Technical Field
The invention relates to the technical field of sound-absorbing cotton, in particular to sound-absorbing cotton which is liquid-resistant, high-temperature-resistant and good in sound-absorbing effect.
Background
With the development of automobile technology, users have higher and higher performance requirements on speed, comfort and the like of automobiles, so that a fuel engine has a development trend of high compression ratio and is accompanied by the increase of engine noise; and the performance requirement of the entire vehicle NVH (NVH is an English abbreviation of noise, vibration and harshness), is increasing, so that the control on the NVH of the engine compartment is higher and higher.
The sound-absorbing cotton of the existing automobile engine has poor sound-absorbing effect and no flame retardant property, and cannot protect the engine in case of fire.
Disclosure of Invention
Aiming at the defects, the invention provides sound-absorbing cotton which is resistant to liquid reduction and high temperature and has a good sound-absorbing effect, good sound-absorbing performance and flame-retardant and liquid-blocking effects.
The invention is realized by the following technical scheme: the utility model provides a resistant liquid, high temperature resistant and inhale sound cotton that sound effect is good, includes first non-woven fabrics layer, inhales cotton main part of sound and second non-woven fabrics layer, the upper epidermis on first non-woven fabrics layer and the lower surface laminating of inhaling the cotton main part of sound, the lower top layer on second non-woven fabrics layer and the upper epidermis laminating of inhaling the cotton main part of sound, first non-woven fabrics layer adopts the fashioned PET non-woven fabrics of acupuncture technology, second non-woven fabrics layer is fire-retardant non-woven fabrics, second non-woven fabrics layer is close to automobile engine one side, inhale the cotton main part of sound and include the composition of following parts by weight: 83-88 parts of glass fiber and 12-17 parts of phenolic resin, wherein the glass fiber comprises the following components in parts by weight: 75-80 parts of silicon dioxide, 12-15 parts of potassium oxide, 1-3 parts of sodium oxide, 3-6 parts of calcium oxide and 0-1 part of aluminum oxide.
As a preferred technical scheme of the invention, the diameter of the glass fiber is 4-6 um.
According to a preferable technical scheme of the invention, hot melt adhesive is filled between the first non-woven fabric layer and the sound-absorbing cotton main body, and hot melt adhesive is filled between the second non-woven fabric layer and the sound-absorbing cotton main body.
In a preferred embodiment of the present invention, the flame-retardant nonwoven fabric is made of a polyester fiber material.
In addition, another object of the present invention is to provide a process for forming sound-absorbing cotton having liquid resistance, high temperature resistance and good sound-absorbing effect, wherein the process comprises the following steps: a forming process of sound-absorbing cotton with liquid resistance, high temperature resistance and good sound-absorbing effect comprises the following steps: :
(1) heating the mold to reach the temperature of 180-200 ℃;
(2) the raw materials are overlapped and injected into a die, and the die is hot pressed for 2min30s by using a 160-180t physical press.
Compared with the prior art, the invention has the beneficial effects that: the first non-woven fabric layer is made of PET non-woven fabric formed by a needle punching process, and has the functions of liquid resistance and acoustic permeability, the sound-absorbing cotton main body is filled with glass fiber with the diameter of 4-6 microns, and a small amount of heat-resistant sizing glue is adopted, so that the best sound-absorbing performance and sizing performance are ensured; the second non-woven fabric layer is made of non-woven fabric with flame retardance and protects an engine compartment.
Detailed Description
The present invention will be further illustrated below with reference to specific embodiments, which are to be understood as merely illustrative and not limitative of the scope of the present invention.
In an embodiment of the present invention, a sound absorption cotton with liquid resistance, high temperature resistance and good sound absorption effect includes a first nonwoven fabric layer, a sound absorption cotton main body and a second nonwoven fabric layer, an upper surface layer of the first nonwoven fabric layer is attached to a lower surface of the sound absorption cotton main body, a lower surface layer of the second nonwoven fabric layer is attached to an upper surface layer of the sound absorption cotton main body, the first nonwoven fabric layer is a PET nonwoven fabric formed by a needle punching process, the second nonwoven fabric layer is a flame retardant nonwoven fabric, the second nonwoven fabric layer is close to a side of an automobile engine, and the sound absorption cotton main body includes the following components in parts by weight: 88 parts of glass fiber and 12 parts of phenolic resin, wherein the glass fiber comprises 75 parts of silicon dioxide, 15 parts of potassium oxide, 3 parts of sodium oxide, 6 parts of calcium oxide and 1 part of aluminum oxide, a hot melt adhesive is filled between the first non-woven fabric layer and the sound-absorbing cotton main body, a hot melt adhesive is filled between the second non-woven fabric layer and the sound-absorbing cotton main body, and the flame-retardant non-woven fabric is made of a polyester fiber material.
Example 2
In an embodiment of the present invention, a sound absorption cotton with liquid resistance, high temperature resistance and good sound absorption effect includes a first nonwoven fabric layer, a sound absorption cotton main body and a second nonwoven fabric layer, an upper surface layer of the first nonwoven fabric layer is attached to a lower surface of the sound absorption cotton main body, a lower surface layer of the second nonwoven fabric layer is attached to an upper surface layer of the sound absorption cotton main body, the first nonwoven fabric layer is a PET nonwoven fabric formed by a needle punching process, the second nonwoven fabric layer is a flame retardant nonwoven fabric, the second nonwoven fabric layer is close to a side of an automobile engine, and the sound absorption cotton main body includes the following components in parts by weight: 83 parts of glass fiber and 17 parts of phenolic resin, wherein the material components of the glass fiber are 75 parts of silicon dioxide, 15 parts of potassium oxide, 3 parts of sodium oxide, 6 parts of calcium oxide and 1 part of aluminum oxide, a hot melt adhesive is filled between the first non-woven fabric layer and the sound-absorbing cotton main body, a hot melt adhesive is filled between the second non-woven fabric layer and the sound-absorbing cotton main body, and the flame-retardant non-woven fabric is made of polyester fiber materials.
Example 3
In an embodiment of the present invention, a sound absorption cotton with liquid resistance, high temperature resistance and good sound absorption effect includes a first nonwoven fabric layer, a sound absorption cotton main body and a second nonwoven fabric layer, an upper surface layer of the first nonwoven fabric layer is attached to a lower surface of the sound absorption cotton main body, a lower surface layer of the second nonwoven fabric layer is attached to an upper surface layer of the sound absorption cotton main body, the first nonwoven fabric layer is a PET nonwoven fabric formed by a needle punching process, the second nonwoven fabric layer is a flame retardant nonwoven fabric, the second nonwoven fabric layer is close to a side of an automobile engine, and the sound absorption cotton main body includes the following components in parts by weight: 88 parts of glass fiber, 8 parts of phenolic resin and 5 parts of water, wherein the material components of the glass fiber are 80 parts of silicon dioxide, 12 parts of potassium oxide, 1 part of sodium oxide, 6 parts of calcium oxide and 1 part of aluminum oxide, a hot melt adhesive is filled between the first non-woven fabric layer and the sound-absorbing cotton main body, a hot melt adhesive is filled between the second non-woven fabric layer and the sound-absorbing cotton main body, and the flame-retardant non-woven fabric is made of polyester fiber materials.
Example 4
The utility model provides a resistant liquid, high temperature resistant and inhale sound cotton that sound effect is good, includes first non-woven fabrics layer, inhales cotton main part of sound and second non-woven fabrics layer, the upper epidermis on first non-woven fabrics layer and the lower surface laminating of inhaling the cotton main part of sound, the lower top layer on second non-woven fabrics layer and the upper epidermis laminating of inhaling the cotton main part of sound, first non-woven fabrics layer adopts the fashioned PET non-woven fabrics of acupuncture technology, second non-woven fabrics layer is fire-retardant non-woven fabrics, second non-woven fabrics layer is close to automobile engine one side, inhale the cotton main part of sound and include the composition of following parts by weight: 80 parts of silicon dioxide, 12 parts of potassium oxide, 1 part of sodium oxide, 6 parts of calcium oxide and 1 part of aluminum oxide, wherein a hot melt adhesive is filled between the first non-woven fabric layer and the sound-absorbing cotton main body, a hot melt adhesive is filled between the second non-woven fabric layer and the sound-absorbing cotton main body, and the flame-retardant non-woven fabric is made of a polyester fiber material.
The first non-woven fabric layer in the embodiments 1 to 4 is a PET non-woven fabric formed by a needle punching process, and has the functions of liquid resistance and acoustic permeability, and the sound-absorbing cotton main body is filled with glass fibers with the diameter of 4 to 6 microns and is provided with a small amount of heat-resistant sizing glue, so that the best sound-absorbing performance and sizing performance are ensured; the second non-woven fabric layer is made of non-woven fabric with flame retardance and protects an engine compartment.
A molding process of sound-absorbing cotton with liquid resistance, high temperature resistance and good sound-absorbing effect comprises the following steps:
(1) heating the mold to reach the temperature of 180-200 ℃;
(2) the raw materials are overlapped and injected into a die, and the die is hot pressed for 2min30s by using a 160-180t physical press.
The sound-absorbing cotton with liquid resistance, high temperature resistance and good sound-absorbing effect has good sound-absorbing effect and better full-frequency sound-absorbing capacity, and simultaneously has the performances of liquid resistance, high temperature resistance, flame retardance and the like, and specifically comprises the following components:
(1) the sound absorption capacity is obviously improved: the NVH effect is improved, and the sound absorption effect of 99% is achieved under a certain frequency;
(2) high temperature resistance, flame retardancy and various engine compartment liquids: avoid aging, corrosion and reduction in sound absorption. The flame-retardant material is resistant to high temperature of an engine, can effectively resist flame and can automatically extinguish fireworks. The sound-absorbing cotton can resist water, antifreeze, battery fluid, brake oil, engine oil and other liquids, the time required for the sound-absorbing cotton to absorb the liquid at normal temperature is at least more than 1h, and the sound-absorbing cotton has super-strong liquid resistance. And in a humid environment, the high-efficiency sound absorption effect can be kept. After 12 hours at the high temperature of 180 ℃, the sound absorption performance is unchanged, and the appearance is unchanged;
(3) the capability of shaping and keeping self shape is provided: interference with the peripheral members is avoided in a narrow environment.
When the thickness of the sound-absorbing cotton is lower, the product can be kept to be shaped through hot press molding; in order to meet the requirement that the product still has excellent shaping capacity when the thickness reaches 20 mm, the hot melt adhesive is added on the surface of the non-woven fabric, the hot pressing time is prolonged, the hot pressing temperature is increased, so that the fusion between the hot melt adhesive and the glass fiber and between the hot melt adhesive and the non-woven fabric is tighter, and the product has ultrahigh bonding strength and bending strength.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a resistant liquid, high temperature resistant and inhale sound that sound effect is good inhales cotton which characterized in that: including first non-woven fabrics layer, inhale cotton main part of sound and second non-woven fabrics layer, the upper epidermis on first non-woven fabrics layer and the lower surface laminating of inhaling the cotton main part of sound, the lower top layer on second non-woven fabrics layer and the upper epidermis laminating of inhaling the cotton main part of sound, first non-woven fabrics layer adopts the fashioned PET non-woven fabrics of acupuncture technology, second non-woven fabrics layer is fire-retardant non-woven fabrics, second non-woven fabrics layer is close to automobile engine one side, inhale the cotton main part of sound and include the composition of following parts by weight: 83-88 parts of glass fiber and 12-17 parts of phenolic resin, wherein the glass fiber comprises the following components in parts by weight: 75-80 parts of silicon dioxide, 12-15 parts of potassium oxide, 1-3 parts of sodium oxide, 3-6 parts of calcium oxide and 0-1 part of aluminum oxide.
2. The sound-absorbing cotton according to claim 1, which is liquid-resistant, heat-resistant and has excellent sound-absorbing effect, characterized in that: the diameter of the glass fiber is 4-6 um.
3. The sound-absorbing cotton according to claim 1, which is liquid-resistant, heat-resistant and has excellent sound-absorbing effect, characterized in that: the first non-woven fabrics layer with inhale and be filled with the hot melt adhesive between the cotton main part of sound, the second non-woven fabrics layer with inhale and be filled with the hot melt adhesive between the cotton main part of sound.
4. The sound-absorbing cotton according to claim 1, which is liquid-resistant, heat-resistant and has excellent sound-absorbing effect, characterized in that: the flame-retardant non-woven fabric is made of a polyester fiber material.
5. The process for forming a sound-absorbing cotton having liquid resistance, high temperature resistance and excellent sound-absorbing effect according to any one of claims 1 to 4, comprising the steps of: :
(1) heating the mold to reach the temperature of 180-200 ℃;
(2) the raw materials are overlapped and injected into a die, and the die is hot pressed for 2min30s by using a 160-180t physical press.
CN202010895157.0A 2020-08-31 2020-08-31 Liquid-resistant, high-temperature-resistant and sound-absorbing cotton with good sound-absorbing effect Pending CN112065537A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115476562A (en) * 2022-10-20 2022-12-16 无锡市鸿庆无纺布有限公司 Flame-retardant chemical fiber sound absorption non-woven fabric and production method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847383A1 (en) * 2006-04-21 2007-10-24 Rieter Technologies AG Acoustic composite and twin-shell lightweight trim part comprising such a composite
CN203920634U (en) * 2014-05-28 2014-11-05 广德天运无纺有限公司 Front wall sound-isolation pad
CN206086575U (en) * 2016-09-30 2017-04-12 长春超维科技产业有限责任公司 Heat -insulating, sound -absorbing and sound -insulating pad for automotive engine compartments
CN109304923A (en) * 2018-09-20 2019-02-05 无锡吉兴汽车部件有限公司 The production method of car engine motor spindle sound insulating pad
CN109483976A (en) * 2018-09-25 2019-03-19 上海新安汽车隔音毡有限公司 A kind of motor in electric automobile sound insulating pad and preparation method thereof
CN109956708A (en) * 2019-04-15 2019-07-02 宣汉正原微玻纤有限公司 A kind of dedicated sound insulation of aviation, heat-protecting glass fibrous composite and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847383A1 (en) * 2006-04-21 2007-10-24 Rieter Technologies AG Acoustic composite and twin-shell lightweight trim part comprising such a composite
CN203920634U (en) * 2014-05-28 2014-11-05 广德天运无纺有限公司 Front wall sound-isolation pad
CN206086575U (en) * 2016-09-30 2017-04-12 长春超维科技产业有限责任公司 Heat -insulating, sound -absorbing and sound -insulating pad for automotive engine compartments
CN109304923A (en) * 2018-09-20 2019-02-05 无锡吉兴汽车部件有限公司 The production method of car engine motor spindle sound insulating pad
CN109483976A (en) * 2018-09-25 2019-03-19 上海新安汽车隔音毡有限公司 A kind of motor in electric automobile sound insulating pad and preparation method thereof
CN109956708A (en) * 2019-04-15 2019-07-02 宣汉正原微玻纤有限公司 A kind of dedicated sound insulation of aviation, heat-protecting glass fibrous composite and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115476562A (en) * 2022-10-20 2022-12-16 无锡市鸿庆无纺布有限公司 Flame-retardant chemical fiber sound absorption non-woven fabric and production method thereof
CN115476562B (en) * 2022-10-20 2024-01-02 无锡市鸿庆无纺布有限公司 Flame-retardant chemical fiber sound absorption non-woven fabric and production method thereof

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Application publication date: 20201211