CN106753021A - Sound insulation multilayer wadding hood damping sheet and preparation method thereof - Google Patents
Sound insulation multilayer wadding hood damping sheet and preparation method thereof Download PDFInfo
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- CN106753021A CN106753021A CN201710155544.9A CN201710155544A CN106753021A CN 106753021 A CN106753021 A CN 106753021A CN 201710155544 A CN201710155544 A CN 201710155544A CN 106753021 A CN106753021 A CN 106753021A
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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
- B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/16—Presence of ethen-propene or ethene-propene-diene copolymers
- C09J2423/166—Presence of ethen-propene or ethene-propene-diene copolymers in the substrate
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2477/00—Presence of polyamide
- C09J2477/006—Presence of polyamide in the substrate
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Abstract
The invention provides a kind of sound insulation multilayer wadding hood damping sheet, flock surface, EPDM foaming sound-proofs layer, EVA foaming sound-proofs layer, nylon cloth, modified epoxy adhesive layer and barrier paper are set gradually from outside to inside.The present invention protects puigging using top layer flocking, prevents acoustic material aging, extends the service life of damping sheet.EPDM foaming sound-proofs layer and EVA foaming sound-proofs layer effectively can hinder to produce the propagation of noise because of engine luggine at many levels.Nylon cloth improves damping sheet toughness in itself as the skeleton structure of integral damping plate so that material is unlikely to deform because external environment changes.The present invention has the advantages that structural strength is high, cheap, resistant to chemical etching, heat-resist, foaming quality is light, dimensionally stable, vibration damping, sound insulation and noise reduction, can be used in automobile and relevant industries.
Description
Technical field
Originally belong to and be related to sound insulation and noise reduction field of material technology, be related to hood damping sheet, especially a kind of sound insulation multilayer
Wadding hood damping sheet and preparation method thereof.
Background technology
In today of auto manufacturing's high speed development, people increasingly pay close attention to noise, vibration and the comfortableness of automotive interior
Deng intuitively feeling.The main noise source of automotive interior is that the vibration of engine is spoken, and engine has the intrinsic frequency of itself
Rate is vibrated, and noise is not only passed to external environment but also a large amount of incoming in-cars of meeting.Although hood can hinder in itself
A part of noise, but effect on driving birds is not good.Sound insulation damping material is added by hood, outside noise can be hindered so that
Acoustical vibration so as to reduce the noise of in-car, cannot reduce the vibration of in-car so that passenger sense in incoming driver's cabin
To comfortable.But current conventional damping sheet is often made using simple material, and noise reduction noise abatement effectiveness in vibration suppression is not good, also cannot
Meet the requirement to automobile of client.
By retrieval, following Patents documents are found：
Car damping plate and preparation method thereof (CN102862527A), inorganic filler is prepared with thermoplastic resin to be had
Machine-inorganic foamed hybrid composite material, composite plate is made by composite hot-melt extruded, by composite plate and felt rug through hot pressing
Obtain MULTILAYER COMPOSITE damping sheet.In due to production process, adhesive is not used, thus, poison will not be discharged in use
Evil gas.Described inorganic filler is zinc oxide, calcium carbonate, titanium dioxide, quartz, diamond dust or phytoclasts, stone flour, has
One or more in machine waste material.Described thermoplastic resin is PE- polyethylene, PVC- polyvinyl chloride, PS- polystyrene, PA-
Polyamide, POM- polyformaldehyde, PC- makrolon, polyphenylene oxide, polysulfones, rubber or copolymer：Copolyamide, polyurethane,
One or more in SIS copolymers, SBS copolymers, ethylene-vinyl acetate copolymer EVA.
Composite damping board and preparation method thereof (CN1462772A), composite damping board by panel, damping sheet, it is bottom plate combined and
It is, with modified pitch as major ingredient, then mixed to be made with inserts such as reclaimed rubber, waste plastics powder, flyash, slags into, damping layer.
A kind of efficient acoustic material and preparation method thereof (CN103903608A), efficient acoustic material includes puigging, inhales
Sound-absorbing layer, bubble layer, the bubble layer is located between puigging and sound absorbing layer.The puigging is made up of sound insulation compound, described
Sound insulation compound is prepared from by the raw material including following substances：Thermoplastic resin, inorganic filler, foaming agent；It is described inorganic to fill out
Material 15-80wt%；The foaming agent is 5-15wt%, and remaining is thermoplastic resin.The filler correspondence of different-grain diameter in the invention
The sound wave of different-waveband or frequency, thus it is more comprehensive to the consumption of the acoustic energy of different frequency.
By contrast, above-mentioned patent is dramatically different with the technical scheme of the application.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of sound insulation multilayer wadding hood damping sheet, with structure
It is excellent that intensity is high, cheap, resistant to chemical etching, heat-resist, foaming quality is light, dimensionally stable, vibration damping, sound insulation and noise reduction are good
Point.
In order to solve the above technical problems, the present invention provides a kind of sound insulation multilayer wadding hood damping sheet, including by outer
Flock surface, EPDM foaming sound-proofs layer, EVA foaming sound-proofs layer, nylon cloth, the modified epoxy adhesive layer set gradually in
And barrier paper.
The component and parts by weight of the EVA foaming sound-proofs layer material be：
The diameter 0.01-0.05mm of the short basalt fibre, length 10-20mm.
The particle diameter of the salt or white granulated sugar or starch is 200-225 mesh.
Thickness 0.5-1 millimeters of described flocking.
Thickness 1-2 millimeters of described EVA foaming sound-proofs layer.
Thickness 1-2 millimeters of described EPDM foaming sound-proofs layer.
Thickness 0.5-1 millimeters of described nylon layer of cloth.
Thickness 0.5-1 millimeters of described modified epoxy adhesive layer.
The preparation method of this damping sheet is comprised the following steps：
(1) compounding procedure:EVA is material of main part, while calcium carbonate is sequentially added, N330 carbon blacks, paraffin, antioxidant 2246,
White carbon, talcum powder, short basalt fibre, salt or white granulated sugar or starch are kneaded, discharging after mixing is uniform, are made mixing
EVA films；
(2) electrostatic spinning operation:In the method that EPDM foaming sound-proofs layer passes through electrostatic spinning, in EPDM foaming sound-proofs layer table
Face is implanted into one layer of flocking.
(3) calendering procedure：EVA mixed sheets are then placed in drum vulcanizer by calender and nylon cloth calendering formation
EVA foaming is carried out, is dried.
(4) operation is cooked：By after foaming EVA foaming sound-proofs layer be put into tank in boiling water boil, dry.
(5) piece operation is closed：In EVA foaming sound-proofs layer top layer coating acrylic ester adhesive, using double roller combinating machine by EPDM
Foaming sound-proof layer and EVA foaming sound-proofs layer cold bonding.
(6) painting process：Modified epoxy adhesive layer is coated on nylon cloth, while applying barrier paper.
The beneficial effect that the present invention brings is:
1st, the present invention protects puigging using top layer flocking, prevents acoustic material chemical attack or aging, extension damping
The service life of plate.
2nd, EPDM foaming sound-proofs layer and EVA foaming sound-proofs layer effectively can hinder to be made an uproar because engine luggine is produced at many levels
The propagation of sound.
3rd, nylon cloth improves damping sheet toughness in itself as the skeleton structure of integral damping plate so that material is because of the external world
Environmental change and be unlikely to deform.
4th, diameter 0.01-0.05mm, the short basalt fiber material of length 10-20mm are added in EVA foaming sound-proofs layer to be made
Obtaining EVA foaming sound-proofs layer intensity increases.
5th, the salt or white granulated sugar or starch of particle diameter 200-225 mesh are added in EVA foaming sound-proofs layer so that EVA foams
Sound insulation layer material is contained within salt or white granulated sugar or starch, and salt or white granulated sugar or starch incorporate boiling during boiling water boils
In water, new microcellular structure is formed in EVA foaming sound-proofs layer.Starch or white sugar or salt are in SBR/EPDM foaming sound-proofs layer
Dispersion extensively, generates microcellular structure in irregular shape during boiling, sound enters irregular micro- in communication process
Pore structure is vibrated, and oscillation intensity can have difference more, and acoustic energy has obvious reduction in irregular microcellular structure,
Reach effective damping noise-reducing effect.
6th, this sound insulation multilayer wadding hood damping sheet top layer flocking can absorb a part of noise vibration energy, and residue is made an uproar
Sound vibrational energy is by EPDM foaming sound-proofs layer and EVA foaming sound-proofs layer, double-layer foamed structure so that the dither in sound
Absorbed and expanded material surface has space sound not only to be absorbed also to reflect by a large amount of with low-frequency vibration, sound transmission
Energy gradually weakens, and reaches the purpose of sound insulation and noise reduction.
7th, the present invention is with structural strength is high, cheap, resistant to chemical etching, heat-resist, foaming quality is light, size is steady
The fixed, advantage of vibration damping, sound insulation and noise reduction, can use in automobile and relevant industries.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure marked as:1 layer：Flocking, 2 layers：EPDM foaming sound-proofs layer, 3 layers：EVA foaming sound-proofs layer, 4 layers：Nylon cloth, 5
Layer：Modified epoxy adhesive layer, 6 layers：Barrier paper.
Fig. 2 rear schematic shapes for the present invention cuts.
Fig. 3 is the use state schematic diagram that the present invention is pasted onto car engine cover.
Specific embodiment
Presently preferred embodiments of the present invention is elaborated below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, a kind of sound insulation multilayer wadding hood damping sheet, is followed successively by top layer flocking 1, EPDM from outside to inside
Foaming sound-proof layer 2, EVA foaming sound-proofs layer 3, nylon cloth 4, modified epoxy adhesive layer 5 and barrier paper 6.
EVA foaming sound-proofs layer material is made up of lower surface compositions：EVA：100 kilograms, calcium carbonate：5 kilograms, N330 carbon blacks：5
Kilogram, paraffin：0.5 kilogram, antioxidant 2246：0.5 kilogram, white carbon：2 kilograms, talcum powder：2 kilograms, short basalt fibre：5
Kilogram, salt：3 kilograms.The diameter 0.01-0.05mm of wherein short basalt fibre, length 10-20mm.Salt needs to be ground
It is milled to the particle diameter of 200-225 mesh.
1. kneaded in above-mentioned material being sequentially added into 75 liters of banburies, melting temperature is 85-90 DEG C, mixing time 7-
9min.Treat that calendering procedure is used.
2. EPDM foaming sound-proofs layer material is processed by electrostatic spinning so that have one layer of plant on EPDM foaming sound-proofs layer
Suede.
3. again by using tri-roll press machine so that EVA material is combined with nylon cloth.The roller roller temperature 90 of 1 roller 2 of tri-roll press machine
± 1 DEG C, 1,2 1.9 millimeters of roll spacing, 3 95 ± 1 DEG C of roller roller temperatures, 2,3 2.9 millimeters of roll spacings.Tri-roll press machine receives the linear velocity of roller curling
18-20m/min.Above-mentioned EVA material and nylon cloth composite members are put into drum vulcanizer in 140-160 DEG C of 20min to EVA again
Layer is foamed, and is then dried.
4. boiling water boils in the EVA foaming sound-proofs layer after foaming being put into tank, boils 5min, boils rear EVA foaming layers
Interior salt is incorporated in boiling water, forms new microcellular structure.Afterwards by heated-air drying, wherein hot blast temperature is 98-100 DEG C.
5.EVA foaming sound-proofs layer top layer passes through high speed coating machine in glass cloth cover even spread acrylic ester adhesive, and
And heated-air drying, winding.Wherein 3.9 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding linear velocity 20-22m/ of wind-up roll
min.Reuse double roller combinating machine carries out cold bonding by EPDM foaming sound-proofs layer with EVA foaming sound-proofs layer.
6. above-mentioned material is passed through into high speed coating machine in nylon cloth cover even spread modified epoxy adhesive layer, and heat
Air-dried dry, winding applies barrier paper simultaneously.Wherein 6.9 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding wire of wind-up roll
Speed 20-22m/min.
The preparation method of modified epoxy glue bond layer：Acrylonitrile butadiene rubber modified epoxy resin；By nitrile rubber, accelerator
M, sulphur are uniform with mill mixing, then are dissolved as 50% solution with ethyl acetate；F-44 rings are added in high-speed stirred method
In oxygen tree fat, modified epoxy is made.
Using film cut the sound insulation multilayer wadding hood damping sheet that machine will be prepared with upper type be die-cut to it is as shown in Figure 2
Figure.Barrier paper is removed when using, sound insulation multilayer wadding hood damping sheet is attached to car engine cover inner side, such as Fig. 3
It is shown.
1 millimeter of the thickness of flocking in this example, 2 millimeters of the thickness of EVA foaming sound-proofs layer, the thickness of EPDM foaming sound-proofs layer
2 millimeters, 1 millimeter of the thickness of nylon cloth, 1 millimeter of the thickness of modified epoxy adhesive layer.
Embodiment 2
As shown in figure 1, a kind of sound insulation multilayer wadding hood damping sheet, is followed successively by top layer flocking 1, EPDM from outside to inside
Foaming sound-proof layer 2, EVA foaming sound-proofs layer 3, nylon cloth 4, modified epoxy adhesive layer 5 and barrier paper 6.
EVA foaming sound-proofs layer material is made up of lower surface compositions：EVA：100 kilograms, calcium carbonate：15 kilograms, N330 carbon blacks：
15 kilograms, paraffin：3 kilograms, antioxidant 2246：4 kilograms, white carbon：10 kilograms, talcum powder：10 kilograms, short basalt fibre：7
Kilogram, white granulated sugar：8 kilograms.The diameter 0.01-0.05mm of wherein short basalt fibre, length 10-20mm.White granulated sugar need into
Row is ground to the particle diameter of 200-225 mesh.
1. kneaded in above-mentioned material being sequentially added into 75 liters of banburies, melting temperature is 85-90 DEG C, mixing time 7-
9min.Treat that calendering procedure is used.
2. EPDM expanded materials puigging is processed by electrostatic spinning so that have one layer of plant on EPDM foaming sound-proofs layer
Suede.
3. again by using tri-roll press machine so that EVA material is combined with nylon cloth.The roller roller temperature 90 of 1 roller 2 of tri-roll press machine
± 1 DEG C, 1,2 0.9 millimeter of roll spacing, 3 95 ± 1 DEG C of roller roller temperatures, 2,3 1.4 millimeters of roll spacings.Tri-roll press machine receives the linear velocity of roller curling
18-20m/min.Above-mentioned EVA material and nylon cloth composite members are put into drum vulcanizer in 140-160 DEG C of 20min to EVA again
Layer is foamed, and is then dried.
4. boiling water boils in the EVA foaming sound-proofs layer after foaming being put into tank, boils white in rear EVA foaming sound-proofs layer
Granulated sugar is incorporated in boiling water, forms new microcellular structure.Afterwards by heated-air drying, wherein hot blast temperature is 98-100 DEG C.
5.EVA foaming sound-proofs layer top layer passes through high speed coating machine in glass cloth cover even spread acrylic ester adhesive, and
And heated-air drying, winding.Wherein 1.9 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding linear velocity 20-22m/ of wind-up roll
min.Reuse double roller combinating machine carries out cold bonding by EPDM foaming sound-proofs layer with EVA foaming sound-proofs layer.
6. above-mentioned material is passed through into high speed coating machine in nylon cloth cover even spread modified epoxy adhesive layer, and heat
Air-dried dry, winding applies barrier paper simultaneously.Wherein 3.4 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding wire of wind-up roll
Speed 20-22m/min.
The preparation method of modified epoxy glue bond layer：Acrylonitrile butadiene rubber modified epoxy resin；By nitrile rubber, accelerator
M, sulphur are uniform with mill mixing, then are dissolved as 50% solution with ethyl acetate；F-44 rings are added in high-speed stirred method
In oxygen tree fat, modified epoxy is made.
Using film cut the sound insulation multilayer wadding hood damping sheet that machine will be prepared with upper type be die-cut to it is as shown in Figure 2
Figure.Barrier paper is removed when using, sound insulation multilayer wadding hood damping sheet is attached to car engine cover inner side, such as Fig. 3
It is shown.
0.5 millimeter of the thickness of flocking in this example, 1 millimeter of the thickness of EVA foaming sound-proofs layer, the thickness of EPDM foaming sound-proofs layer
1 millimeter of degree, 0.5 millimeter of the thickness of nylon cloth, 0.5 millimeter of the thickness of modified epoxy adhesive layer.
Embodiment 3
As shown in figure 1, a kind of sound insulation multilayer wadding hood damping sheet, is followed successively by top layer flocking 1, EPDM from outside to inside
Foaming sound-proof layer 2, EVA foaming sound-proofs layer 3, nylon cloth 4, modified epoxy adhesive layer 5 and barrier paper 6.
EVA foaming sound-proofs layer material is made up of lower surface compositions：EVA：100 kilograms, calcium carbonate：10 kilograms, N330 carbon blacks：
8 kilograms, paraffin：2 kilograms, antioxidant 2246：3 kilograms, white carbon：5 kilograms, talcum powder：5 kilograms, short basalt fibre：4 is public
Jin, starch：5 kilograms.The diameter 0.01-0.05mm of wherein short basalt fibre, length 10-20mm.Starch needs to be ground
To the particle diameter of 200-225 mesh.
1. kneaded in above-mentioned material being sequentially added into 75 liters of banburies, melting temperature is 85-90 DEG C, mixing time 7-
9min.Treat that calendering procedure is used.
2. EPDM foaming sound-proofs layer material is processed by electrostatic spinning so that have one layer of plant on EPDM foaming sound-proofs layer
Suede.
3. again by using tri-roll press machine so that EVA material is combined with nylon cloth.The roller roller temperature 90 of 1 roller 2 of tri-roll press machine
± 1 DEG C, 1,2 1.4 millimeters of roll spacing, 3 95 ± 1 DEG C of roller roller temperatures, 2,3 2.2 millimeters of roll spacings.Tri-roll press machine receives the linear velocity of roller curling
18-20m/min.Above-mentioned EVA material and nylon cloth composite members are put into drum vulcanizer in 140-160 DEG C of 20min to EVA again
Layer is foamed, and is then dried.
4. boiling water boils in the EVA foaming sound-proofs layer after foaming being put into tank, boils the shallow lake in rear EVA foaming sound-proofs layer
Powder is incorporated in boiling water, forms new microcellular structure.Afterwards by heated-air drying, wherein hot blast temperature is 98-100 DEG C.
5.EVA foaming sound-proofs layer top layer passes through high speed coating machine in glass cloth cover even spread acrylic ester adhesive, and
And heated-air drying, winding.Wherein 2.8 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding linear velocity 20-22m/ of wind-up roll
min.Reuse double roller combinating machine carries out cold bonding by EPDM foaming sound-proofs layer with EVA foaming sound-proofs layer.
6. above-mentioned material is passed through into high speed coating machine in nylon cloth cover even spread modified epoxy adhesive layer, and heat
Air-dried dry, winding applies barrier paper simultaneously.Wherein 4.9 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding wire of wind-up roll
Speed 20-22m/min.
The preparation method of modified epoxy glue bond layer：Acrylonitrile butadiene rubber modified epoxy resin；By nitrile rubber, accelerator
M, sulphur are uniform with mill mixing, then are dissolved as 50% solution with ethyl acetate；F-44 rings are added in high-speed stirred method
In oxygen tree fat, modified epoxy is made.
Using film cut the sound insulation multilayer wadding hood damping sheet that machine will be prepared with upper type be die-cut to it is as shown in Figure 2
Figure.Barrier paper is removed when using, sound insulation multilayer wadding hood damping sheet is attached to car engine cover inner side, such as Fig. 3
It is shown.
0.6 millimeter of the thickness of flocking in this example, 1.5 millimeters of the thickness of EVA foaming sound-proofs layer, EPDM foaming sound-proofs layer
1.5 millimeters of thickness, 0.8 millimeter of the thickness of nylon cloth, 0.6 millimeter of the thickness of modified epoxy adhesive layer.
Embodiment 4
As shown in figure 1, a kind of sound insulation multilayer wadding hood damping sheet, is followed successively by top layer flocking 1, EPDM from outside to inside
Foaming sound-proof layer 2, EVA foaming sound-proofs layer 3, nylon cloth 4, modified epoxy adhesive layer 5 and barrier paper 6.
EVA foaming sound-proofs layer material is made up of lower surface compositions：EVA：100 kilograms, calcium carbonate：7 kilograms, N330 carbon blacks：9
Kilogram, paraffin：2 kilograms, antioxidant 2246：1.5 kilograms, white carbon：6 kilograms, talcum powder：8 kilograms, short basalt fibre：6 is public
Jin, salt：6 kilograms.The diameter 0.01-0.05mm of wherein short basalt fibre, length 10-20mm.Salt needs to be ground
To the particle diameter of 200-225 mesh.
1. kneaded in above-mentioned material being sequentially added into 75 liters of banburies, melting temperature is 85-90 DEG C, mixing time 7-
9min.Treat that calendering procedure is used.
2. EPDM expanded materials puigging is processed by electrostatic spinning so that have one layer of plant on EPDM foaming sound-proofs layer
Suede.
3. again by using tri-roll press machine so that EVA material is combined with nylon cloth.The roller roller temperature 90 of 1 roller 2 of tri-roll press machine
± 1 DEG C, 1,2 1.5 millimeters of roll spacing, 3 95 ± 1 DEG C of roller roller temperatures, 2,3 2.1 millimeters of roll spacings.Tri-roll press machine receives the linear velocity of roller curling
18-20m/min.Above-mentioned EVA material and nylon cloth composite members are put into drum vulcanizer in 140-160 DEG C of 20min to EVA again
Layer is foamed, and is then dried.
4. boiling water boils in the EVA foaming sound-proofs layer after foaming being put into tank, boils the food in rear EVA foaming sound-proofs layer
Salt is incorporated in boiling water, forms new microcellular structure.Afterwards by heated-air drying, wherein hot blast temperature is 98-100 DEG C.
5.EVA foaming sound-proofs layer top layer passes through high speed coating machine in glass cloth cover even spread acrylic ester adhesive, and
And heated-air drying, winding.Wherein 3.0 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding linear velocity 20-22m/ of wind-up roll
min.Reuse double roller combinating machine carries out cold bonding by EPDM foaming sound-proofs layer with EVA foaming sound-proofs layer.
6. above-mentioned material is passed through into high speed coating machine in nylon cloth cover even spread modified epoxy adhesive layer, and heat
Air-dried dry, winding applies barrier paper simultaneously.Wherein 5.1 millimeters of applicator roll spacing, 110 DEG C of drying temperature, the winding wire of wind-up roll
Speed 20-22m/min.
The preparation method of modified epoxy glue bond layer：Acrylonitrile butadiene rubber modified epoxy resin；By nitrile rubber, accelerator
M, sulphur are uniform with mill mixing, then are dissolved as 50% solution with ethyl acetate；F-44 rings are added in high-speed stirred method
In oxygen tree fat, modified epoxy is made.
Using film cut the sound insulation multilayer wadding hood damping sheet that machine will be prepared with upper type be die-cut to it is as shown in Figure 2
Figure.Barrier paper is removed when using, sound insulation multilayer wadding hood damping sheet is attached to car engine cover inner side, such as Fig. 3
It is shown.
0.8 millimeter of the thickness of flocking in this example, 1.6 millimeters of the thickness of EVA foaming sound-proofs layer, EPDM foaming sound-proofs layer
1.3 millimeters of thickness, 0.6 millimeter of the thickness of nylon cloth, 0.9 millimeter of the thickness of modified epoxy adhesive layer.
Claims (10)
1. a kind of sound insulation multilayer wadding hood damping sheet, it is characterised in that：Flock surface, EPDM are set gradually from outside to inside
The six layer structure of foaming sound-proof layer, EVA foaming sound-proofs layer, nylon cloth, modified epoxy adhesive layer and barrier paper.
2. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：EVA foaming every
The component and parts by weight of sound-absorbing layer be:
3. sound insulation multilayer wadding hood damping sheet according to claim 2, it is characterised in that：The short basalt is fine
The diameter 0.01-0.05mm of dimension, length 10-20mm.
4. sound insulation multilayer wadding hood damping sheet according to claim 2, it is characterised in that：The salt or white sand
The particle diameter of sugar or starch is 200-225 mesh.
5. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：The thickness of described flocking
0.5-1 millimeters of degree.
6. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：Described EVA foaming
Thickness 1-2 millimeters of puigging.
7. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：Described EPDM foaming
Thickness 1-2 millimeters of puigging.
8. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：Described nylon layer of cloth
Thickness 0.5-1 millimeters.
9. sound insulation multilayer wadding hood damping sheet according to claim 1, it is characterised in that：Described modified epoxy
Thickness 0.5-1 millimeters of resin bonded laminate.
10. the sound insulation multilayer wadding hood damping sheet according to claim 1-9 any claims, its feature exists
In：Preparation method is comprised the following steps：
(1) compounding procedure:EVA is material of main part, while calcium carbonate is sequentially added, N330 carbon blacks, paraffin, antioxidant 2246, hard charcoal
Black, then talcum powder, short basalt fibre, salt or white granulated sugar or starch, discharging after mixing is uniform is made EVA mixed sheets
It is stand-by；
(2) electrostatic spinning operation:In the method that EPDM foaming sound-proofs layer passes through electrostatic spinning, planted in EPDM foaming sound-proofs layer surface
Enter one layer of flocking；
(3) calendering procedure：By step, (1) obtained EVA mixed sheets, by calender and nylon cloth calendering formation, are then placed in drum
EVA foaming is carried out in formula vulcanizer, is dried；
(4) operation is cooked：Boiling water boils during EVA foaming sound-proofs layer after foaming is put into tank, dries；
(5) piece operation is closed：In EVA foaming sound-proofs layer top layer coating acrylic ester adhesive, EPDM is foamed using double roller combinating machine
Puigging and EVA foaming sound-proofs layer cold bonding；
(6) painting process：Modified epoxy adhesive layer is coated on nylon cloth, while applying barrier paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155544.9A CN106753021A (en) | 2017-03-16 | 2017-03-16 | Sound insulation multilayer wadding hood damping sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155544.9A CN106753021A (en) | 2017-03-16 | 2017-03-16 | Sound insulation multilayer wadding hood damping sheet and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN106753021A true CN106753021A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710155544.9A Withdrawn CN106753021A (en) | 2017-03-16 | 2017-03-16 | Sound insulation multilayer wadding hood damping sheet and preparation method thereof |
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| CN (1) | CN106753021A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486832A (en) * | 2003-07-30 | 2004-04-07 | 复旦大学 | Porous foamed polymer material and its prepn process via normal temperature molding |
| CN101112807A (en) * | 2007-08-08 | 2008-01-30 | 株洲时代新材料科技股份有限公司 | Rubber self-adhering type composite damping material for motorcycles and method of manufacturing the same |
| US20120077891A1 (en) * | 2010-09-28 | 2012-03-29 | Allergan, Inc. | Porogen compositions, methods of making and uses |
| CN202743169U (en) * | 2012-06-11 | 2013-02-20 | 浙江吉利汽车研究院有限公司杭州分公司 | Novel soundproof seal for automobile |
-
2017
- 2017-03-16 CN CN201710155544.9A patent/CN106753021A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486832A (en) * | 2003-07-30 | 2004-04-07 | 复旦大学 | Porous foamed polymer material and its prepn process via normal temperature molding |
| CN101112807A (en) * | 2007-08-08 | 2008-01-30 | 株洲时代新材料科技股份有限公司 | Rubber self-adhering type composite damping material for motorcycles and method of manufacturing the same |
| US20120077891A1 (en) * | 2010-09-28 | 2012-03-29 | Allergan, Inc. | Porogen compositions, methods of making and uses |
| CN202743169U (en) * | 2012-06-11 | 2013-02-20 | 浙江吉利汽车研究院有限公司杭州分公司 | Novel soundproof seal for automobile |
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| 刘全香 等: "《装潢印刷技术》", 31 January 2004, 化学工业出版社 * |
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Application publication date: 20170531 |