CN105644460A - Noise-proof automotive interior trim structure material and forming method - Google Patents

Noise-proof automotive interior trim structure material and forming method Download PDF

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Publication number
CN105644460A
CN105644460A CN201610167857.1A CN201610167857A CN105644460A CN 105644460 A CN105644460 A CN 105644460A CN 201610167857 A CN201610167857 A CN 201610167857A CN 105644460 A CN105644460 A CN 105644460A
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China
Prior art keywords
weight
noise
layer
automobile
interior structure
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CN201610167857.1A
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Chinese (zh)
Inventor
白云飞
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Beijing Sincode Science and Technology Co Ltd
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Beijing Sincode Science and Technology Co Ltd
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Priority to CN201610167857.1A priority Critical patent/CN105644460A/en
Publication of CN105644460A publication Critical patent/CN105644460A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/10Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/24Organic non-macromolecular coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02Composition of the impregnated, bonded or embedded layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04Impregnation, embedding, or binder material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10Inorganic particles
    • B32B2264/102Oxide or hydroxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/07Parts immersed or impregnated in a matrix
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/07Parts immersed or impregnated in a matrix
    • B32B2305/073Parts immersed or impregnated in a matrix partially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56Damping, energy absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/003Interior finishings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/08Cars

Abstract

The invention relates to a multilayer compound noise-proof automotive interior trim structure which comprises multiple layers of structures: an automobile rigid layer, a shock absorption layer, a sound absorption layer and a protection layer. Due to the form of multilayer compound absorption for noise, the noise to an automobile user is effectively reduced, and the use feeling during automobile driving is improved.

Description

A kind of noiseproof automotive trim structural material and formation method
Technical field
The present invention relates to the noise-proofing technology of automobile, particularly a kind of noiseproof automotive trim structural material and formationMethod.
Background technology
Vehicle all can produce noise and vibration in the process of operation, and such noise and vibration can be shifted and use vehicle to establishStandby or near they personnel notice and they are had the fidgets. And for the personnel that use vehicle arrangement, processThe region that noise is larger is inevitably, even needs to stop in noise region for a long time, and this particularly becomes to ask to long-term drivingTopic. Therefore the technology that occurs various these noises of elimination is used rigid foam as patent CN1082062 discloses oneAcoustic material, patent CN1833272 discloses a kind of sheet for interior material foam sheet and sheet for interior material carries out sound insulation,Patent CN101164800 discloses a kind of automobile tyre that improves noise-proof performance, and patent CN101963200 discloses oneNoise-proof spring, patent CN20173705 discloses a kind of noise preventing car roof etc., but these technology have various Technical BoardsLimit, for example, the plate using in vehicle structure manufacture is applied in noise deadener, i.e. so-called vibrationproof coating, this technology oneAs the mixture of hyperbaric filler and pitch is hot-pressed onto on plate, then press or cut by this template die and be cut into corresponding shape, soAfter they are pasted on above-mentioned metal parts, and can make it to be suitable for the shape of metal parts by heating. But theseBitumen sheets is extremely frangible, is easy to especially at low temperatures peel off on slave plate. In addition, preformed bitumen sheets can not be applicable to multipleIn assorted shaping or machine or automobile, be difficult to the parts of location, for example inner surface of car door concave interior. The technology also having is at sedan-chairOn car bottom plate, lay mat and slow down the noise and the vibration that enter in passenger accommodation, it has problems and is again, and the shape on chassis hasMany breach, are difficult to make shape to fit like a glove. Often by hand cushion blockings single or various shapes are carefully placed on suitableWhen the chassis area of processing automobile, region. In the process of automobile assembling with in the middle of application, the manual pad of placing various shapesComponent is a kind of very bothersome operation, and the repeatability of placement and reliability are often underproof. And inventor also findsIn overwhelming majority situation, in vehicle rear seat, be configured to sliding seat. Adopt after sliding seat the space between seat and carpetVery limited. And, adopting after sliding seat, driver or occupant can feel that noise situation will become clearlyObtain more serious. In addition also has all inconvenience and unfavorable, in this not explanation one by one.
In sum, the use costliness that the method for existing noise reduction or material have, some application inconvenience, what have is even easy toCome off etc., on this basis, inventor is through repeatedly contrasting and testing. The present invention has been proposed.
Summary of the invention
The automobile noise-proofing interior structure that the present invention proposes a kind of MULTILAYER COMPOSITE, it comprises sandwich construction: automobile rigid bodyLayer, buffer layer, sound absorbing layer, protective layer. Wherein automobile rigid body layer is the metallic plate in automobile, and buffer layer comprises: (1) 65% weightAlkyl methacrylate homopolymers or methylmethacrylate copolymer, the plasticizer of (2) 20% weight, (3) 10% weightsThe filler of amount, the reaction additives of (4) 5% weight. It also comprises sound absorbing layer, and sound absorbing layer is that resin and alumina particle mixThing. It also possesses protective layer, the hydroxyalkyl methacrylate that protective layer comprises 14 % by weight, the methacrylic acid of 30 % by weightLauryl Ester, the AMS of 30 % by weight, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight orLead octoate.
Another aspect of the present invention, has also proposed to be applicable to processing or the formation side with the noise-proofing interior structure of getting on the carMethod, in general its method comprises that step comprises: 1, be processed to form automobile rigid body layer with metal; 2, described buffer layer is laid inOn described rigid body layer; 3, partial oxidation alumina particles is injected on buffer layer, then resin is watered to the damping after described injectionOn layer, then rigid body layer is horizontally rotated and vertical tremor simultaneously, rotation and vibrations in again by another partial oxidationAlumina particles is injected on resin, forms described sound absorbing layer; 4 are sprayed on protective layer on described sound absorbing layer.
Automobile noise-proofing interior structure constructed in accordance, it can effectively absorb automobile because vibrate, rubDeng the interior noise producing, and the noise that automobile external is formed has the elimination effect of highly significant, in actual tests, usesPerson's reaction is very good, and above structure is easy to form and processing, and price can be expensive, and its be not easy destroyed andCause damage.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of automobile noise-proofing interior structure figure of the present invention.
Detailed description of the invention
The automobile noise-proofing interior structure that the present invention proposes a kind of MULTILAYER COMPOSITE, it comprises sandwich construction: automobile rigid bodyLayer, buffer layer, sound absorbing layer, protective layer. Wherein automobile rigid body layer is the metallic plate in automobile, and buffer layer comprises: (1) 65% weightAlkyl methacrylate homopolymers or methylmethacrylate copolymer, the plasticizer of (2) 20% weight, (3) 10% weightsThe filler of amount, the reaction additives of (4) 5% weight. It also comprises sound absorbing layer, and sound absorbing layer is that resin and alumina particle mixThing. It also possesses protective layer, the hydroxyalkyl methacrylate that protective layer comprises 14 % by weight, the methacrylic acid of 30 % by weightLauryl Ester, the AMS of 30 % by weight, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight orLead octoate.
Another aspect of the present invention, has also proposed to be applicable to processing or the formation side with the noise-proofing interior structure of getting on the carMethod, in general its method comprises that step comprises: 1, be processed to form automobile rigid body layer with metal; 2, described buffer layer is laid inOn described rigid body layer; 3, partial oxidation alumina particles is injected on buffer layer, then resin is watered to the damping after described injectionOn layer, then rigid body layer is horizontally rotated and vertical tremor simultaneously, rotation and vibrations in again by another partial oxidationAlumina particles is injected on resin, forms described sound absorbing layer; 4 are sprayed on protective layer on described sound absorbing layer.
Further the present invention will be described for example below. Automobile noise-proofing interior structure, it comprises sandwich construction: automobileRigid body layer, buffer layer, sound absorbing layer, protective layer. Wherein automobile rigid body layer is the metallic plate in automobile, and buffer layer comprises: (1) 65%The methylmethacrylate copolymer of weight, the plasticizer of (2) 20% weight, the filler of (3) 10% weight, (4) 5% weightReaction additives. It also comprises sound absorbing layer, and sound absorbing layer is resin and alumina particle mixture. It also possesses protective layer, protectionThe hydroxyalkyl methacrylate that layer comprises 14 % by weight, the methacrylic acid Lauryl Ester of 30 % by weight, the α of 30 % by weight-Methyl styrene, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight or lead octoate.
Wherein, buffer layer possesses good damping coefficient, for vibrations are absorbed, first noise has been done to the first stepProcess, and the plasticizer using in buffer layer is phthalic acid dioctyl ester, filler is mica, and reaction additives is many ammoniaBase acid amides.
But here can further illustrate, in fact plasticizer can be replaced the plasticizer of any routine, as: neighbourPhthalic acid dibutyl ester, phthalic acid dioctyl ester, benzyl butyl phthalate, phthalic acid dibenzylEster, phthalic acid diisononyl esters (DINP), diisooctyl phthalate (DIDP), the two undecyls of phthalic acidThe alkyl sulfonic ester, two of ester (DIUP), organophosphorus ester, adipate ester and sebacate or benzoic acid benzyl ester, phenol or cresolsThe known plasticizers of benzyl toluene or diphenyl ether.
Inventor is preferably using plasticizer, and its choice criteria is formed and determined by the polymer of selecting on the one hand, anotherDetermine and used phthalic acid dioctyl ester for raising soundproof effect on the one hand.
Similarly, filler can be also known any filler for example chalk, barite, mica and vermiculite form itselfCalcium carbonate, the same preferred mica of inventor, because find that equally it possesses the associated advantages on better acoustics.
Inventor is also according to the chemical characteristic choosing of alkyl methacrylate homopolymers and methylmethacrylate copolymerGot polyamino acid amides as reaction additives, it can also be replaced equally.
Sound absorbing layer of the present invention is resin and alumina particle mixture. It can adopt flame-spraying to comprise this oxygenChanging aluminium introducing supplies with suitable regulation ratio in the flame of spray gun of acetylene and oxygen, so that this aluminium oxide becomes the condition of high temperature alsoBy spray gun flame-spraying. In this embodiment, the spray gun of use is a kind of METCO spray gun of 5P type. Jet length is about1m. Concerning acetylene and oxygen, the site of gun traffic meter is controlled to 34 places. Spraying buffer layer be cooled to temperature approximately 110~After 120 DEG C, used resin-dipping, resin material can be selected voluntarily. After dipping, then carry out the oxidation of same stepThe spraying of alumina particles. In spraying process, be also rotated and shake, so that alumina particle forms in resin is irregularLittle space.
The hydroxyalkyl methacrylate that the protective layer finally using comprises 14 % by weight, the methacrylic acid of 30 % by weightLauryl Ester,
The AMS of 30 % by weight, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight or sadPlumbous.
Described protective layer possesses very powerful adhesive force, has formed effective protection, and it is also convenient to spray againPaint painted work. It can protect noise-proofing interior trim joint to avoid the infringement of liquid medium, greasy dirt and dust, and also tool itselfStandby certain sound absorbing capabilities.
Below for another embodiment, the present invention will be described. Automobile noise-proofing interior structure, it comprises sandwich construction: goldBelong to the automobile rigid body layer of structure; Comprise: the alkyl methacrylate homopolymers of 65% weight, the plasticizer of 20% weight,The filler of 10% weight, the buffer layer of the reaction additives of 5% weight; The sound-absorbing of resin and alumina particle compositions of mixturesLayer; It also possesses protective layer, the hydroxyalkyl methacrylate that protective layer comprises 14 % by weight, the methacrylic acid of 30 % by weightLauryl Ester, the AMS of 30 % by weight, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight orLead octoate.
Wherein, buffer layer possesses good damping coefficient, for vibrations are absorbed, first noise has been done to the first stepProcess, and the plasticizer using in buffer layer is phthalic acid dioctyl ester, filler is mica, and reaction additives is many ammoniaBase acid amides.
But here can further illustrate, in fact plasticizer can be replaced the plasticizer of any routine, as: neighbourPhthalic acid dibutyl ester, phthalic acid dioctyl ester, benzyl butyl phthalate, phthalic acid dibenzylEster, phthalic acid diisononyl esters (DINP), diisooctyl phthalate (DIDP), the two undecyls of phthalic acidThe alkyl sulfonic ester, two of ester (DIUP), organophosphorus ester, adipate ester and sebacate or benzoic acid benzyl ester, phenol or cresolsThe known plasticizers of benzyl toluene or diphenyl ether.
Similarly, filler can be also known any filler for example chalk, barite, mica and vermiculite form itselfCalcium carbonate, inventor also chooses according to the chemical characteristic of alkyl methacrylate homopolymers and methylmethacrylate copolymerPolyamino acid amides as reaction additives, it can also be replaced equally.
Sound absorbing layer of the present invention is resin and alumina particle mixture. It can adopt flame-spraying to comprise this oxygenChanging aluminium introducing supplies with suitable regulation ratio in the flame of spray gun of acetylene and oxygen, so that this aluminium oxide becomes the condition of high temperature alsoBy spray gun flame-spraying. In this embodiment, the spray gun of use is a kind of METCO spray gun of 5P type. Jet length is about1m. Concerning acetylene and oxygen, the site of gun traffic meter is controlled to 34 places. Spraying buffer layer be cooled to temperature approximately 110~After 120 DEG C, used resin-dipping, resin material can be selected voluntarily. After dipping, then carry out the oxidation of same stepThe spraying of alumina particles. In spraying process, be also rotated and shake, so that alumina particle forms in resin is irregularLittle space.
The hydroxyalkyl methacrylate that the protective layer finally using comprises 14 % by weight, the methacrylic acid of 30 % by weightLauryl Ester,
The AMS of 30 % by weight, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight or sadPlumbous.
Described protective layer possesses very powerful adhesive force, has formed effective protection, and it is also convenient to spray againPaint painted work. It can protect noise-proofing interior trim joint to avoid the infringement of liquid medium, greasy dirt and dust, and also tool itselfStandby certain sound absorbing capabilities.
In addition, also concentrate and introduce lower operational method of the present invention: be processed to form automobile rigid body layer with metal; Prepare (1)Alkyl methacrylate homopolymers or the methylmethacrylate copolymer of 65% weight, the plasticizer of (2) 20% weight,The filler of (3) 10% weight, the reaction additives of (4) 5% weight. Above material is heated to 160 in dissolution vesselAfter degree Celsius, wait for about 25 minutes, then described buffer layer is laid on described rigid body layer. Partial oxidation alumina particles is sprayedPenetrate on buffer layer, adopt flame-spraying to comprise this aluminium oxide is introduced to the spray of supplying with acetylene and oxygen with suitable regulation ratioIn the flame of rifle, so that this aluminium oxide becomes the condition of high temperature and passes through spray gun flame-spraying. Operable spray gun is a kind of 5PThe METCO spray gun of type. Jet length is approximately 1m. Concerning acetylene and oxygen, the site of gun traffic meter is controlled to 34 places.Spraying buffer layer is used resin-dipping after being cooled to approximately 110~120 DEG C of temperature, and resin material can be selected voluntarily.After dipping, then carry out the spraying of the alumina particle of same step. In spraying process, be also rotated and shake, so that oxidationAlumina particles forms irregular little space in resin. Form described sound absorbing layer. Protective layer is sprayed on described sound absorbing layer: willThe hydroxyalkyl methacrylate that comprises 14 % by weight, the methacrylic acid Lauryl Ester of 30 % by weight, the α-first of 30 % by weightBase styrene, 2 of 24 % by weight, 4-toluene di-isocyanate(TDI), the tin octoate of 2 % by weight or the material of lead octoate carry out high-speed stirredDissolve, then by air force equipment, the material after dissolving is sprayed.
The present invention is easy to implement, and possesses good noise-proofing effect. Inventor is using the experiment of product of the present inventionOn vehicle, test, and drawn following result: in the situation that product of the present invention is not installed, records successively vehicle and existLevel of noise when 30km/h, 60km/h, 80km/h, 100km/h in compartment:
30km/h60km/h80km/h100km/h
66.1db67.3db78.9db80.9db
And in part product of the present invention is installed in the situation that (installation of part position), record equally successively vehicle 30km/h,Level of noise when 60km/h, 80km/h, 100km/h in compartment:
30km/h60km/h80km/h100km/h
52.3db64.9db66.0db75.3db
After all installing, still record successively vehicle in the time of 30km/h, 60km/h, 80km/h, 100km/h in compartment in carLevel of noise:
30km/h60km/h80km/h100km/h
46.1db54.6db56.9db64.5db
Several situation contrasts can be seen, by the level of noise contrast under several different conditions, no matter are high speed or low-speed vehicleUnder speed, the effect that product of the present invention is installed is all very desirable, and the effect that noise in compartment is played is very large.
More than show and described general principle of the present invention, principal character and advantage. The technical staff of the industry shouldUnderstand, the present invention is not restricted to the described embodiments, and just illustrating of describing in above-described embodiment and description is of the present invention formerReason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvementsAll fall in the claimed scope of the invention.

Claims (10)

1. an automobile noise-proofing interior structure, comprises sandwich construction, it is characterized in that, described sandwich construction comprises automobile rigid bodyLayer, buffer layer, sound absorbing layer, protective layer.
2. automobile noise-proofing interior structure as claimed in claim 1, is characterized in that, described automobile rigid body layer is in automobileMetallic plate.
3. automobile noise-proofing interior structure as claimed in claim 2, is characterized in that, described buffer layer comprises:
Alkyl methacrylate homopolymers or the methylmethacrylate copolymer of (1) 65% weight,
The plasticizer of (2) 20% weight,
The filler of (3) 10% weight,
The reaction additives of (4) 5% weight.
4. automobile noise-proofing interior structure as claimed in claim 3, is characterized in that the plasticizer using in described buffer layerFor phthalic acid dioctyl ester.
5. automobile noise-proofing interior structure as claimed in claim 3, is characterized in that, the filler using in described buffer layer isMica.
6. automobile noise-proofing interior structure as claimed in claim 3, is characterized in that, the reaction using in described buffer layer is addedAdding agent is polyamino acid amides.
7. automobile noise-proofing interior structure as claimed in claim 3, described sound absorbing layer is that resin and metal oxide particle are mixedCompound.
8. automobile noise-proofing interior structure as claimed in claim 7, described metal oxide is aluminium oxide.
9. automobile noise-proofing interior structure as claimed in claim 3, described protective layer comprises
The hydroxyalkyl methacrylate of 14 % by weight,
The methacrylic acid Lauryl Ester of 30 % by weight,
The AMS of 30 % by weight,
2 of 24 % by weight, 4-toluene di-isocyanate(TDI),
The tin octoate of 2 % by weight or lead octoate.
10. a formation method for automobile noise-proofing interior structure, it is used to form the vapour as described in one of claim 1-10Car noise-proofing interior structure, its step comprises:
A. be processed to form automobile rigid body layer with metal;
B. described buffer layer is laid on described rigid body layer;
C. partial oxidation alumina particles is injected on buffer layer, then resin is watered on the buffer layer after described injection, thenRigid body layer is horizontally rotated and vertical tremor simultaneously, in rotation and vibrations, more another partial oxidation alumina particles is sprayedOn resin, form described sound absorbing layer;
D. protective layer is sprayed on described sound absorbing layer.
CN201610167857.1A 2016-03-23 2016-03-23 Noise-proof automotive interior trim structure material and forming method Pending CN105644460A (en)

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CN106626616A (en) * 2016-11-03 2017-05-10 江苏昊晟塑业科技有限公司 Protective film for automobile interior trimming panels

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WO2014053268A1 (en) * 2012-10-04 2014-04-10 Basf Coatings Gmbh Fluorine-containing non-aqueous coating composition, coating process, and the use of the coating composition
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DE4318712A1 (en) * 1993-06-07 1994-12-08 Teroson Gmbh Acoustically effective plastisols
US6720069B1 (en) * 1999-01-14 2004-04-13 Nichias Corporation Sound absorbing structure
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JP2006330570A (en) * 2005-05-30 2006-12-07 Tokai Rubber Ind Ltd Soundproof cover having vibration damping property and manufacturing method thereof
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CN106626616A (en) * 2016-11-03 2017-05-10 江苏昊晟塑业科技有限公司 Protective film for automobile interior trimming panels

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Application publication date: 20160608