CN106113841A - A kind of sound insulation automobile front wall - Google Patents

A kind of sound insulation automobile front wall Download PDF

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Publication number
CN106113841A
CN106113841A CN201610663596.2A CN201610663596A CN106113841A CN 106113841 A CN106113841 A CN 106113841A CN 201610663596 A CN201610663596 A CN 201610663596A CN 106113841 A CN106113841 A CN 106113841A
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China
Prior art keywords
layer
sound insulation
front wall
parts
automobile front
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CN201610663596.2A
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CN106113841B (en
Inventor
曹纯才
王江龙
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KUNSHAN TONGCHANG AUTOMOTIVE NEW MATERIALS Co Ltd
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KUNSHAN TONGCHANG AUTOMOTIVE NEW MATERIALS Co Ltd
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    • 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
    • B32B27/06—Layered 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
    • B32B27/08—Layered 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • 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
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • 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
    • 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • 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
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • 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
    • C08K2201/011—Nanostructured additives
    • 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
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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    • 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
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  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Molding Of Porous Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention provides a kind of sound insulation automobile front wall, including PE/PA anisotropic membrane layer, the front of described PE/PA anisotropic membrane layer is provided with EVA layer, the front of described EVA layer is provided with expansion buffer layer, the front of described expansion buffer layer is provided with antistatic layer, the front of described antistatic layer is provided with waterproof and oilproof layer, present invention also offers the manufacture method of a kind of sound insulation automobile front wall；A kind of sound insulation automobile front wall of the present invention has sound insulation value and the foamed cement performance of excellence, and the synthetic material formability of described automobile front wall is the best；A kind of sound insulation automobile front wall that the present invention provides, has good shock resistance, and enhances waterproof and oilproof performance and the antistatic property of automobile front wall on this basis.

Description

A kind of sound insulation automobile front wall
Technical field
The present invention relates to a kind of automobile front wall and manufacture method thereof, be specifically related to a kind of sound insulation automobile front wall and manufacturer thereof Method.
Background technology
Along with economic fast development, improving constantly of people's living standard, automobile industry development is rapid, and people are to automobile Requirement be not only the grace of the quality of automobile itself, function and outward appearance, to the requirement of the upholstery of automobile the most increasingly High.
The foamed cement method that the existing automobile front wall having uses is generally divided into two kinds: non-woven fabric type and corona type.Now Along with main engine plants are more and more higher to passenger car car internal sound insulation prescription, but the product sound insulation index of non-woven fabric type and corona type The least, corona type front wall corona storage life is short, easily loses efficacy, and soundproof effect is the best.
The present invention, from the standpoint of sound insulation and foamed cement, has manufactured and has had good sound insulation value and foamed cement performance Automobile front wall.
Summary of the invention
For solving the problem of above-mentioned existence, it is an object of the invention to provide a kind of sound insulation automobile front wall, of the present invention A kind of sound insulation automobile front wall there is sound insulation value and the foamed cement performance of excellence, and the synthetic material of described automobile front wall can Mouldability is the best；A kind of sound insulation automobile front wall that the present invention provides, has good shock resistance, and increases on this basis The waterproof and oilproof performance of strong automobile front wall and antistatic property.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of sound insulation automobile front wall, including PE/PA anisotropic membrane layer, the thickness of described PE/PA anisotropic membrane layer is 0.1～0.2 Mm, square grammes per square metre of described PE/PA anisotropic membrane layer is 25～35 g/m2；The front of described PE/PA anisotropic membrane layer is provided with EVA layer, described PE/PA anisotropic membrane aspect bonds with the back side of EVA layer, and in described PE/PA anisotropic membrane layer, PA face is exposed, can Boning with PU foaming agent, PA Yu PU belongs to polarity body together, and both have extraordinary bond effect, and PA face can intercept PU foaming simultaneously Agent is oozed out, and to have certain soundproof effect, the thickness of described EVA layer be 0.6～0.8 mm, square grammes per square metre of described EVA layer It is 4500～5500 g/m2；The bottom density of described EVA layer is higher, and sound-proofing is preferable, belong to soft material, have excellent Thermoplastic material, formability is fine, and the front of described EVA layer is provided with expansion buffer layer, the thickness of described expansion buffer layer Being 0.2～0.3 mm, described expansion buffer layer includes following weight proportion raw material:
Polyurethane: 30～40 parts, PET:20～30 parts, carbon nano-fiber: 2～3 parts, bentonite: 1～2 part, white oil: 1～2 part, Citric acid: 0.5～1 part, vinyltrimethoxy silane: 0.5～1 part, SA dioctyl ester: 2～3 parts, anti-impact modifier: 1～2 part.
Further, described anti-impact modifier is styrol copolymer.
Further, the front of described expansion buffer layer is provided with antistatic layer, and described antistatic layer is PP film layer, described anti-quiet The thickness of electric layer is 0.1～0.2 mm, and square grammes per square metre of described antistatic layer is 50～80 g/m2, described antistatic layer includes Following weight proportion raw material:
PP:80～100 parts；Antistatic additive: 5～10 parts；Vinyltrimethoxy silane: 0.5～1 part；White oil: 2～3 parts；Lemon Lemon acid: 0.1～1 part；Calcium carbonate: 0.8～1.5 part.
Further, the front of described antistatic layer is provided with waterproof and oilproof layer, the thickness of described waterproof and oilproof layer be 0.1～ 0.2 mm, square grammes per square metre of described waterproof and oilproof layer is 80～100 g/m2, described waterproof and oilproof layer includes following weight proportion Raw material:
Epoxy resin: 40～50 parts；PP:20～30 parts；Polyethylene breast wax liquid: 5～10 parts, coupling agent: 0.1～1 part；Fire-retardant Agent: 0.5～1 part；Antibacterial: 1～2 part；Plasticizer: 1～2 part；Stabilizer: 0.5～1 part；Phase flux: 0.5～1 part；Solidification Agent: 1～1.5 part.
Further, described coupling agent is gamma-aminopropyl-triethoxy-silane；Described fire retardant is DMMP and tetramethylolmethane Mixture, described coupling agent is a kind of organo silane coupling agent, it is possible to decrease the viscosity of molten synthetic resin, improves dividing of filler Divergence is to improve processing characteristics, and then makes goods obtain good surface quality and machinery, heat and electrical property etc., and this coupling For agent is compared to some metal coupling agents, itself is more environmentally-friendly.
Separately, described antibacterial is tea tree ethereal oil, and described antibacterial has good antibiotic property, is possible to prevent the taste of antibacterial Raw, extend the service life of carpet；Described plasticizer is diethylene glycol dibenzoate, by being added by diethylene glycol dibenzoate Make its plasticizing effect strengthen in waterproof and oilproof layer, also make its pliability strengthen, be more prone to processing.
Separately having, described stabilizer is calcium-zinc composite stabilizing agent and tetramethylolmethane composition by weight ratio is the mixture of 1:2；Institute Stating phase flux is maleic anhydride inoculated polypropylene PP-g-MAH；Described firming agent is trimethylhexamethylenediamine.
The present invention adds described stabilizer so that bonding waterproof and oilproof layer character is more stable, prevents it from decomposing, always Changing, for calcium-zinc composite stabilizing agent is compared to stabilizers such as some other metallic lead classes simultaneously, not only stablizing effect is good, also simultaneously After nontoxic, environmental protection, and tetramethylolmethane mixing, its stablizing effect can be further enhanced；Described phase flux can be greatly improved The compatibility of composite and the dispersibility of filler, thus improve composite machinery intensity, and material itself is nontoxic；Pass through Adding described firming agent and can promote curing reaction speed, reduce the response time, trimethylhexamethylenediamine itself is also simultaneously Wearability and the effect of mechanical strength improving product can be played, and it is cheap, nontoxic.
Again, the manufacture method of a kind of sound insulation automobile front wall, comprise the following steps:
The manufacture of A:EVA layer: be the group of 10:2:1 by weight ratio by EVA particle, EPDM particle and 800 mesh barium sulfate powder body Put in screw extruder after part mix homogeneously, then extrude under high temperature fused state, and squeezed by mould Going out, be cast on the roll surface of cooling roller that rotates smoothly, diaphragm carries out the sizing that cools on cooling roller, shapes laggard Row embossing processes, after after traction, trimming, prepare EVA layer；
The manufacture of B:PE/PA anisotropic membrane layer: PE/PA is added mixing and stirring in mixer, mixing temperature be 100～ 110 DEG C, incorporation time is 5～8 minutes, after mix homogeneously, transfer in cooling and stirring machine at 30～40 DEG C stirring at low speed 5～ 10 minutes, finally enter extruder plastify at 170～180 DEG C, pelletizing, last cross cutting, rolling；
C:EVA layer and PE/PA anisotropic membrane layer compound: with three roller blanchers by the front of PE/PA anisotropic membrane layer and EVA layer The back side be effectively combined, then prepare joint product after cooling, wherein compound temperature is 170～180 DEG C；
D: the manufacture of expansion buffer layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that C prepares, and dried at 150～160 DEG C by dehydrator, drying time 5～10 min；
The manufacture of E: antistatic layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step D The front of the product prepared, and dried at 160～170 DEG C by dehydrator, drying time 10～15 min；
F: the manufacture of waterproof and oilproof layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that E prepares, and dried at 150～160 DEG C by dehydrator, drying time 5～10 min, prepare after cooling A kind of automobile front wall of sound insulation.
Further, the temperature that in described step A, high temperature fused state is is 230～250 DEG C.
The beneficial effects of the present invention is:
(1) a kind of sound insulation automobile front wall of the present invention, described PE/PA anisotropic membrane aspect bonds with the back side of EVA layer, institute PA face in PE/PA anisotropic membrane layer of stating is exposed, and can bond with PU foaming agent, PA Yu PU belongs to polarity body together, and both have extraordinary Bond effect.PA face can intercept PU foaming agent and oozes out simultaneously, and has certain soundproof effect.
(2) the bottom density of described EVA layer is higher, and sound-proofing is preferable, belong to soft material, have excellent thermoplastic Material, formability is fine.
(3) the PE/PA film bond effect that the present invention utilizes screw machine press double-layer coextrusion to squeeze out is the best so that PE/ The PA face of PA film has the stripping performance of excellence with PU foaming agent and PE face with EVA material, it is to avoid in use product produces Raw lamination；Meanwhile, PA film has certain sound insulation value, reduce further noise in car.
(4) by contrasting with existing corona product, under identical foaming condition, the bond effect of this product is the highest In the bond effect of existing corona product, this product also has the sound insulation value of excellence simultaneously.
(5) present invention is by adding certain fire retardant and antibacterial during materials synthesis, improves overall material The fire resistance of material and anti-microbial property, further increase the cost performance of material, and synthesized product weight is light, and abnormal smells from the patient is low, and And VOC numerical value content is relatively low, meets automobile air quality requirement, do not affect the safety and Health of rider.
(6) manufacture method of a kind of sound insulation automobile front wall that the present invention provides, in the fabrication process, substantially free of pollutant Matter produces, and is a kind of environmentally friendly production method, and, the machine used is all purpose instrument, and its production cost is relatively low, Working condition is also easier to control, and therefore, the difficulty of production is relatively low, it is simple to spread, carries out industrialized production.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sound insulation automobile front wall in the embodiment of the present invention；
Wherein, 1 is PE/PA anisotropic membrane layer, and 2 is EVA layer, and 3 is expansion buffer layer, and 4 is antistatic layer, and 5 is waterproof and oilproof layer.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be carried out clear, complete description below, it is clear that described enforcement Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common The every other embodiment that technical staff is obtained on the premise of not making creative work, broadly falls into present invention protection Scope.
Embodiment one
A kind of sound insulation automobile front wall, including PE/PA anisotropic membrane layer (1), the thickness of described PE/PA anisotropic membrane layer (1) is 0.15 mm, square grammes per square metre of described PE/PA anisotropic membrane layer (1) is 30 g/m2；Described PE/PA anisotropic membrane layer (1) is just Face is provided with EVA layer (2), and described PE/PA anisotropic membrane layer (1) bonds with the back side of EVA layer (2), described PE/PA anisotropic membrane layer (1) in, PA exposes in face, can bond with PU foaming agent, PA Yu PU belongs to polarity body together, and both have extraordinary bond effect, simultaneously PA Face can intercept PU foaming agent and ooze out, and to have certain soundproof effect, the thickness of described EVA layer be 0.7mm, described EVA layer (2) square grammes per square metre is 5000 g/m2；The bottom density of described EVA layer (2) is higher, and sound-proofing is preferable, belong to soft material, Having excellent thermoplastic material, formability is fine, and the front of described EVA layer (2) is provided with expansion buffer layer, described expansion The thickness of cushion (3) is 0.25 mm, and described expansion buffer layer (3) includes following weight proportion raw material:
Polyurethane: 35 parts, PET:26 part, carbon nano-fiber: 2.5 parts, bentonite: 1.6 parts, white oil: 1.54 parts, citric acid: 0.75 part, vinyltrimethoxy silane: 0.8 part, SA dioctyl ester: 2.58 parts, anti-impact modifier: 1.52 parts.
Further, described anti-impact modifier is styrol copolymer.
Further, the front of described expansion buffer layer (3) is provided with antistatic layer (4), and described antistatic layer (4) is PP film Layer, the thickness of described antistatic layer (4) is 0.15 mm, and square grammes per square metre of described antistatic layer (4) is 65 g/m2, described anti-quiet Electric layer (4) includes following weight proportion raw material:
PP:90 part；Antistatic additive: 8 parts；Vinyltrimethoxy silane: 0.74 part；White oil: 2.5 parts；Citric acid: 0.56 part； Calcium carbonate: 1.1 parts.
Further, the front of described antistatic layer (4) is provided with waterproof and oilproof layer (5), the thickness of described waterproof and oilproof layer (5) Being 0.16 mm, square grammes per square metre of described waterproof and oilproof layer (5) is 90 g/m2, described waterproof and oilproof layer (5) includes following weight Proportioning raw material:
Epoxy resin: 46 parts；PP:24 part；Polyethylene breast wax liquid: 7 parts, coupling agent: 0.58 part；Fire retardant: 0.8 part；Antibacterial: 1.5 part；Plasticizer: 1.54 parts；Stabilizer: 0.78 part；Phase flux: 0.7 part；Firming agent: 1.25 parts.
Further, described coupling agent is gamma-aminopropyl-triethoxy-silane；Described fire retardant is DMMP and tetramethylolmethane Mixture.
Separately, described antibacterial is tea tree ethereal oil；Described plasticizer is diethylene glycol dibenzoate.
Separately having, described stabilizer is calcium-zinc composite stabilizing agent and tetramethylolmethane composition by weight ratio is the mixture of 1:2；Institute Stating phase flux is maleic anhydride inoculated polypropylene PP-g-MAH；Described firming agent is trimethylhexamethylenediamine.
Again, the manufacture method of a kind of sound insulation automobile front wall, comprise the following steps:
The manufacture of A:EVA layer (2): be 10:2:1 by weight ratio by EVA particle, EPDM particle and 800 mesh barium sulfate powder body Component mix homogeneously after put in screw extruder, then extrude under high temperature fused state, and pass through shaping mould Tool extrusion, is cast on the roll surface of cooling roller that rotates smoothly, and diaphragm carries out the sizing that cools on cooling roller, shapes After be embossed process, after after traction, trimming, prepare EVA layer (2)；
The manufacture of B:PE/PA anisotropic membrane layer (1): PE/PA adds mixing and stirring in mixer, mixing temperature is 105 DEG C, incorporation time is 6.5 minutes, after mix homogeneously, transfers in cooling and stirring machine stirring at low speed 7 minutes at 35 DEG C, finally Entrance extruder plastifies at 175 DEG C, pelletizing, last cross cutting, rolling；
C:EVA layer (2) and PE/PA's anisotropic membrane layer (1) is compound: with three roller blanchers by PE/PA anisotropic membrane layer (1) just Face is effectively combined with the back side of EVA layer (2), then prepares joint product after cooling, and wherein compound temperature is 175 DEG C；
D: the manufacture of expansion buffer layer (3): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of the product that step C prepares, and dried at 155 DEG C by dehydrator, drying time 8 min；
The manufacture of E: antistatic layer (4): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that rapid D prepares, and dried at 165 DEG C by dehydrator, drying time 12 min；
F: the manufacture of waterproof and oilproof layer (5): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of product that step E prepares, and being dried at 155 DEG C by dehydrator, drying time 8min, prepare after cooling one every The automobile front wall of sound.
Further, the temperature that in described step A, high temperature fused state is is 240 DEG C.
Embodiment two
A kind of sound insulation automobile front wall, including PE/PA anisotropic membrane layer (1), the thickness of described PE/PA anisotropic membrane layer (1) is 0.1 Mm, square grammes per square metre of described PE/PA anisotropic membrane layer (1) is 25 g/m2；The front of described PE/PA anisotropic membrane layer (1) is provided with EVA layer, described PE/PA anisotropic membrane layer (1) bonds with the back side of EVA layer (2), PA face in described PE/PA anisotropic membrane layer (1) Exposing, can bond with PU foaming agent, PA Yu PU belongs to polarity body together, and both have extraordinary bond effect, and PA face can hinder simultaneously Oozing out every PU foaming agent, and have certain soundproof effect, the thickness of described EVA layer (2) is 0.8 mm, described EVA layer (2) Square grammes per square metre is 5500 g/m2；The bottom density of described EVA layer (2) is higher, and sound-proofing is preferable, belong to soft material, have excellent Good thermoplastic material, formability is fine, and the front of described EVA layer (2) is provided with expansion buffer layer (3), and described expansion is delayed The thickness rushing layer (3) is 0.2 mm, and described expansion buffer layer (3) includes following weight proportion raw material:
Polyurethane: 32 parts, PET:28 part, carbon nano-fiber: 2 parts, bentonite: 1 part, white oil: 2 parts, citric acid: 0.5 part, ethylene Base trimethoxy silane: 0.5 part, SA dioctyl ester: 2.2 parts, anti-impact modifier: 1.8 parts.
Further, described anti-impact modifier is styrol copolymer.
Further, the front of described expansion buffer layer (3) is provided with antistatic layer (4), and described antistatic layer (4) is PP film Layer, the thickness of described antistatic layer (4) is 0.1 mm, and square grammes per square metre of described antistatic layer (4) is 50 g/m2, described anti-quiet Electric layer (4) includes following weight proportion raw material:
PP:80 part；Antistatic additive: 5 parts；Vinyltrimethoxy silane: 1 part；White oil: 2.9 parts；Citric acid: 0.2 part；Carbonic acid Calcium: 0.8 part.
Further, the front of described antistatic layer (4) is provided with waterproof and oilproof layer (5), the thickness of described waterproof and oilproof layer (5) Being 0.2 mm, square grammes per square metre of described waterproof and oilproof layer (5) is 100 g/m2, described waterproof and oilproof layer (5) includes following weight Proportioning raw material:
Epoxy resin: 50 parts；PP:22 part；Polyethylene breast wax liquid: 5.5 parts, coupling agent: 0.85 part；Fire retardant: 0.56 part；Antibacterial Agent: 1.2 parts；Plasticizer: 1.8 parts；Stabilizer: 0.5 part；Phase flux: 1 part；Firming agent: 1.5 parts.
Further, described coupling agent is gamma-aminopropyl-triethoxy-silane；Described fire retardant is DMMP and tetramethylolmethane Mixture.
Separately, described antibacterial is tea tree ethereal oil；Described plasticizer is diethylene glycol dibenzoate.
Separately having, described stabilizer is calcium-zinc composite stabilizing agent and tetramethylolmethane composition by weight ratio is the mixture of 1:2；Institute Stating phase flux is maleic anhydride inoculated polypropylene PP-g-MAH；Described firming agent is trimethylhexamethylenediamine.
Again, the manufacture method of a kind of sound insulation automobile front wall, comprise the following steps:
The manufacture of A:EVA layer (2): be 10:2:1 by weight ratio by EVA particle, EPDM particle and 800 mesh barium sulfate powder body Component mix homogeneously after put in screw extruder, then extrude under high temperature fused state, and pass through shaping mould Tool extrusion, is cast on the roll surface of cooling roller that rotates smoothly, and diaphragm carries out the sizing that cools on cooling roller, shapes After be embossed process, after after traction, trimming, prepare EVA layer (2)；
The manufacture of B:PE/PA anisotropic membrane layer (1): PE/PA adds mixing and stirring in mixer, mixing temperature is 100 DEG C, incorporation time is 5 minutes, after mix homogeneously, transfers in cooling and stirring machine stirring at low speed 10 minutes at 30 DEG C, the most laggard Enter extruder plastify at 180 DEG C, pelletizing, last cross cutting, rolling；
C:EVA layer (2) and PE/PA's anisotropic membrane layer (1) is compound: with three roller blanchers by PE/PA anisotropic membrane layer (1) just Face is effectively combined with the back side of EVA layer (2), then prepares joint product after cooling, and wherein compound temperature is 180 DEG C；
D: the manufacture of expansion buffer layer (3): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of the product that step C prepares, and dried at 150 DEG C by dehydrator, drying time 10 min；
The manufacture of E: antistatic layer (4): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that rapid D prepares, and dried at 170 DEG C by dehydrator, drying time 10 min；
F: the manufacture of waterproof and oilproof layer (5): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of the product that step E prepares, and dried at 160 DEG C by dehydrator, drying time 10 min, prepare one after cooling The automobile front wall of sound insulation.
Further, the temperature that in described step A, high temperature fused state is is 230.
Embodiment three
A kind of sound insulation automobile front wall, including PE/PA anisotropic membrane layer (1), the thickness of described PE/PA anisotropic membrane layer (1) is 0.2 Mm, square grammes per square metre of described PE/PA anisotropic membrane layer (1) is 35 g/m2；The front of described PE/PA anisotropic membrane layer (1) is provided with EVA layer (2), described PE/PA anisotropic membrane layer (1) bonds, in described PE/PA anisotropic membrane layer (1) with the back side of EVA layer (2) PA exposes in face, can bond with PU foaming agent, PA Yu PU belongs to polarity body together, and both have extraordinary bond effect, and PA face can simultaneously Oozing out with obstruct PU foaming agent, and have certain soundproof effect, the thickness of described EVA layer (2) is 0.6 mm, described EVA layer (2) square grammes per square metre is 4500 g/m2；The bottom density of described EVA layer (2) is higher, and sound-proofing is preferable, belong to soft material, Having excellent thermoplastic material, formability is fine, and the front of described EVA layer (2) is provided with expansion buffer layer, described expansion The thickness of cushion (3) is 0.3 mm, and described expansion buffer layer (3) includes following weight proportion raw material:
Polyurethane: 40 parts, PET:22 part, carbon nano-fiber: 3 parts, bentonite: 1.8 parts, white oil: 1.2 parts, citric acid: 0.95 Part, vinyltrimethoxy silane: 1 part, SA dioctyl ester: 3 parts, anti-impact modifier: 1.2 parts.
Further, described anti-impact modifier is styrol copolymer.
Further, the front of described expansion buffer layer (3) is provided with antistatic layer (4), and described antistatic layer (4) is PP film Layer, the thickness of described antistatic layer (4) is 0.2 mm, and square grammes per square metre of described antistatic layer (4) is 80 g/m2, described anti-quiet Electric layer (4) includes following weight proportion raw material:
PP:100 part；Antistatic additive: 10 parts；Vinyltrimethoxy silane: 0.5 part；White oil: 2.1 parts；Citric acid: 0.8 part； Calcium carbonate: 1.5 parts.
Further, the front of described antistatic layer (4) is provided with waterproof and oilproof layer (5), the thickness of described waterproof and oilproof layer (5) Being 0.1 mm, square grammes per square metre of described waterproof and oilproof layer (5) is 80 g/m2, described waterproof and oilproof layer (5) includes that following weight is joined Than raw material:
Epoxy resin: 42 parts；PP:30 part；Polyethylene breast wax liquid: 10 parts, coupling agent: 0.2 part；Fire retardant: 0.95 part；Antibacterial Agent: 1.8 parts；Plasticizer: 1.1 parts；Stabilizer: 1 part；Phase flux: 0.5 part；Firming agent: 1.1 parts.
Further, described coupling agent is gamma-aminopropyl-triethoxy-silane；Described fire retardant is DMMP and tetramethylolmethane Mixture.
Separately, described antibacterial is tea tree ethereal oil；Described plasticizer is diethylene glycol dibenzoate.
Separately having, described stabilizer is calcium-zinc composite stabilizing agent and tetramethylolmethane composition by weight ratio is the mixture of 1:2；Institute Stating phase flux is maleic anhydride inoculated polypropylene PP-g-MAH；Described firming agent is trimethylhexamethylenediamine.
Again, the manufacture method of a kind of sound insulation automobile front wall, comprise the following steps:
The manufacture of A:EVA layer (2): be 10:2:1 by weight ratio by EVA particle, EPDM particle and 800 mesh barium sulfate powder body Component mix homogeneously after put in screw extruder, then extrude under high temperature fused state, and pass through shaping mould Tool extrusion, is cast on the roll surface of cooling roller that rotates smoothly, and diaphragm carries out the sizing that cools on cooling roller, shapes After be embossed process, after after traction, trimming, prepare EVA layer (2)；
The manufacture of B:PE/PA anisotropic membrane layer (1): PE/PA adds mixing and stirring in mixer, mixing temperature is 110 DEG C, incorporation time is 8 minutes, after mix homogeneously, transfers in cooling and stirring machine stirring at low speed 5 minutes at 40 DEG C, the most laggard Enter extruder plastify at 170 DEG C, pelletizing, last cross cutting, rolling；
C:EVA layer (2) and PE/PA's anisotropic membrane layer (1) is compound: with three roller blanchers by PE/PA anisotropic membrane layer (1) just Face is effectively combined with the back side of EVA layer (2), then prepares joint product after cooling, and wherein compound temperature is 170 DEG C；
D: the manufacture of expansion buffer layer (3): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of the product that step C prepares, and dried at 160 DEG C by dehydrator, drying time 6 min；
The manufacture of E: antistatic layer (4): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that rapid D prepares, and dried at 160 DEG C by dehydrator, drying time 15 min；
F: the manufacture of waterproof and oilproof layer (5): carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to The front of the product that step E prepares, and dried at 150 DEG C by dehydrator, drying time 5 min, prepare one after cooling The automobile front wall of sound insulation.
Further, the temperature that in described step A, high temperature fused state is is 250 DEG C.
A kind of sound insulation automobile front wall that the present invention provides, described PE/PA anisotropic membrane aspect bonds with the back side of EVA layer, In described PE/PA anisotropic membrane layer, PA face is exposed, and can bond with PU foaming agent, PA Yu PU belongs to polarity body together, and both have the best Bond effect.PA face can intercept PU foaming agent and oozes out simultaneously, and has certain soundproof effect.And the end of described EVA layer Layer density is higher, and sound-proofing is preferable, belongs to soft material, has excellent thermoplastic material, and formability is fine.Secondly, The PE/PA film bond effect that the present invention utilizes screw machine press double-layer coextrusion to squeeze out is the best so that the PA face of PE/PA film with PU foaming agent and PE face have the stripping performance of excellence with EVA material, it is to avoid in use product produces lamination；With Time, PA film has certain sound insulation value, reduce further noise in car.And by with existing corona product carry out right Ratio, under identical foaming condition, the bond effect of this product is significantly larger than the bond effect of existing corona product, and this product is also simultaneously There is the sound insulation value of excellence.Furthermore, the present invention passes through to add certain fire retardant and antibacterial during materials synthesis, Improve fire resistance and the anti-microbial property of integral material, further increase the cost performance of material, synthesized product weight Gently, abnormal smells from the patient is low, and VOC numerical value content is relatively low, meets automobile air quality requirement, does not affect the safety and Health of rider.This Outward, the manufacture method of a kind of sound insulation automobile front wall that the present invention provides, in the fabrication process, produce substantially free of polluter, It is a kind of environmentally friendly production method, and, the machine used is all purpose instrument, and its production cost is relatively low, produces bar Part is also easier to control, and therefore, the difficulty of production is relatively low, it is simple to spread, carries out industrialized production.
It should be noted that above example is only in order to illustrate technical scheme and unrestricted.Although with reference to relatively The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the technology of invention Scheme is modified or equivalent, and without deviating from the scope of technical solution of the present invention, it all should contain the power in the present invention In profit claimed range.

Claims (9)

1. a sound insulation automobile front wall, it is characterised in that include PE/PA anisotropic membrane layer, described PE/PA anisotropic membrane layer Thickness is 0.1～0.2 mm, and square grammes per square metre of described PE/PA anisotropic membrane layer is 25～35 g/m2；
The front of described PE/PA anisotropic membrane layer is provided with EVA layer, and the thickness of described EVA layer is 0.6～0.8 mm, described EVA layer Square grammes per square metre be 4500～5500 g/m2；
The front of described EVA layer is provided with expansion buffer layer, and the thickness of described expansion buffer layer is 0.2～0.3 mm, described expansion Cushion includes following weight proportion raw material:
Polyurethane: 30～40 parts, PET:20～30 parts, carbon nano-fiber: 2～3 parts, bentonite: 1～2 part, white oil: 1～2 part, Citric acid: 0.5～1 part, vinyltrimethoxy silane: 0.5～1 part, SA dioctyl ester: 2～3 parts, anti-impact modifier: 1～2 part.
A kind of sound insulation automobile front wall the most according to claim 1, it is characterised in that described anti-impact modifier is styrene Copolymer.
A kind of sound insulation automobile front wall the most according to claim 1, it is characterised in that the front of described expansion buffer layer sets Having antistatic layer, described antistatic layer is PP film layer, and the thickness of described antistatic layer is 0.1～0.2 mm, described antistatic layer Square grammes per square metre be 50～80 g/m2, described antistatic layer includes following weight proportion raw material:
PP:80～100 parts；Antistatic additive: 5～10 parts；Vinyltrimethoxy silane: 0.5～1 part；White oil: 2～3 parts；Lemon Lemon acid: 0.1～1 part；Calcium carbonate: 0.8～1.5 part.
A kind of sound insulation automobile front wall the most according to claim 3, it is characterised in that the front of described antistatic layer is provided with Waterproof and oilproof layer, the thickness of described waterproof and oilproof layer is 0.1～0.2 mm, square grammes per square metre of described waterproof and oilproof layer be 80～ 100 g/m2, described waterproof and oilproof layer includes following weight proportion raw material:
Epoxy resin: 40～50 parts；PP:20～30 parts；Polyethylene breast wax liquid: 5～10 parts, coupling agent: 0.1～1 part；Fire-retardant Agent: 0.5～1 part；Antibacterial: 1～2 part；Plasticizer: 1～2 part；Stabilizer: 0.5～1 part；Phase flux: 0.5～1 part；Solidification Agent: 1～1.5 part.
A kind of sound insulation automobile front wall the most according to claim 4, it is characterised in that described coupling agent is γ-aminopropyl three Ethoxysilane；Described fire retardant is the mixture of DMMP and tetramethylolmethane.
A kind of sound insulation automobile front wall the most according to claim 4, it is characterised in that described antibacterial is tea tree ethereal oil；Institute Stating plasticizer is diethylene glycol dibenzoate.
A kind of sound insulation automobile front wall the most according to claim 4, it is characterised in that described stabilizer is that Ca Zn composite is stable Agent and tetramethylolmethane composition by weight ratio are the mixture of 1:2；Described phase flux is maleic anhydride inoculated polypropylene PP-g-MAH； Described firming agent is trimethylhexamethylenediamine.
8. the manufacture method of an a kind of sound insulation automobile front wall as claimed in claim 4, it is characterised in that include following step Rapid:
The manufacture of A:EVA layer: be the group of 10:2:1 by weight ratio by EVA particle, EPDM particle and 800 mesh barium sulfate powder body Put in screw extruder after part mix homogeneously, then extrude under high temperature fused state, and squeezed by mould Going out, be cast on the roll surface of cooling roller that rotates smoothly, diaphragm carries out the sizing that cools on cooling roller, shapes laggard Row embossing processes, after after traction, trimming, prepare EVA layer；
The manufacture of B:PE/PA anisotropic membrane layer: PE/PA is added mixing and stirring in mixer, mixing temperature be 100～ 110 DEG C, incorporation time is 5～8 minutes, after mix homogeneously, transfer in cooling and stirring machine at 30～40 DEG C stirring at low speed 5～ 10 minutes, finally enter extruder plastify at 170～180 DEG C, pelletizing, last cross cutting, rolling；
C:EVA layer and PE/PA anisotropic membrane layer compound: with three roller blanchers by the front of PE/PA anisotropic membrane layer and EVA layer The back side be effectively combined, then prepare joint product after cooling, wherein compound temperature is 170～180 DEG C；
D: the manufacture of expansion buffer layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that C prepares, and dried at 150～160 DEG C by dehydrator, drying time 5～10 min；
The manufacture of E: antistatic layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step D The front of the product prepared, and dried at 160～170 DEG C by dehydrator, drying time 10～15 min；
F: the manufacture of waterproof and oilproof layer: carry out dispensing by described formula, the material mix homogeneously that will prepare, it is then applied to step The front of the product that E prepares, and dried at 150～160 DEG C by dehydrator, drying time 5～10 min, prepare after cooling A kind of automobile front wall of sound insulation.
The manufacture method of a kind of sound insulation automobile front wall the most according to claim 8, it is characterised in that high in described step A The temperature that temperature molten condition is is 230～250 DEG C.
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