CN105882053A - Multilayer sound absorption and sound insulation composite material for automobiles - Google Patents

Multilayer sound absorption and sound insulation composite material for automobiles Download PDF

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Publication number
CN105882053A
CN105882053A CN201610267089.7A CN201610267089A CN105882053A CN 105882053 A CN105882053 A CN 105882053A CN 201610267089 A CN201610267089 A CN 201610267089A CN 105882053 A CN105882053 A CN 105882053A
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parts
layer
acoustic dampening
antioxidant
sound acoustic
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钟静清
韦晗
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Liuzhou Shentong Automobile Technology Co Ltd
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Liuzhou Shentong Automobile Technology 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/18—Layered products comprising a layer of natural or synthetic rubber comprising butyl or halobutyl rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/043—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance 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
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/08—Oxygen-containing compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • 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
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • 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
    • C08K2201/006—Additives being defined by their surface area
    • 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

Abstract

The invention relates to an automobile sound insulation material, in particular to a multilayer sound absorption and sound insulation composite material for automobiles. The multilayer sound absorption and sound insulation composite material comprises three layers including a middle ramie gray cloth layer, a lateral nitrile butadiene rubber layer and a lateral thermoplastic resin layer. The two lateral layers are adhered to the middle layer through adhesives, and vermiculite powder, a coupling agent, a crosslinking agent and an antioxidant are added into the nitrile butadiene rubber layer. The thermoplastic resin layer is formed by addition of tetrapod-like zinc oxide whiskers, nano silica, calcium carbonate, a coupling agent, a crosslinking agent and an antioxidant into ethylene vinyl acetate copolymer. The sound insulation material which adopts the nitrile butadiene rubber and takes the vermiculite powder as filler achieves excellent sound absorption effects; in addition, by the three layers including the middle ramie gray cloth layer, the lateral nitrile butadiene rubber layer and the lateral thermoplastic resin layer, sound insulation effects are greatly improved.

Description

Automobile multilayer absorbs sound acoustic dampening composite
Technical field
The present invention relates to vapour Soundproof material for vehicle.
Background technology
Along with the progress of the mankind, the prosperity of science, noise pollution has become as very important problem.Absorb noise, reduce noise pollution and be related to the important topic of human society coordinated development.Along with going deep into of research, the material of various absorption sound waves produces therewith.Its sound insulation principle is all to utilize when sound wave is by certain object, and this object can absorb, reflect weakening so that the continuation cutting off sound wave is propagated, thus reaches the effect of sound insulation.Along with the development of auto industry, to the sound insulation value of acoustic material, heat resistance, mechanical property requirement more and more higher, conventional material is also increasingly difficult to meet requirement.
Defective tightness is combined between various thermoplastic resin molecules in the puigging of the auto sound material of conventional formulation, and interface cohesion is poor between thermoplastic resin and filler, the most closely knit, it is difficult to reach preferable soundproof effect, and owing to the addition of high amount of inorganic filler, increase material weight, deviate from mutually with the trend of automotive light weight technology.
Summary of the invention
For above-mentioned technical problem, the present invention provides a kind of sound insulation, acoustically effective preferably to absorb sound acoustic dampening composite.
The technical solution used in the present invention is: automobile multilayer absorbs sound acoustic dampening composite, it is by up of three layers, intermediate layer is ramie embryo cloth, side surface layer is nitrile rubber layer, opposite side surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, is added with vermiculite power, coupling agent, crosslinking agent and antioxidant in nitrile rubber layer；Thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, nano silicon, calcium carbonate, coupling agent, crosslinking agent and antioxidant.
As preferably, described nitrile rubber layer forms according to the mass fraction of 55 65 parts of nitrile rubbers, 30 40 parts of vermiculite powers, 12 parts of coupling agents, 12 parts of crosslinking agents and 0.5 1 parts of antioxidant.
As preferably, described thermoplastic resin forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 26 parts of four acicular type zinc oxide crystal whiskers, 0.5 2.5 parts of nano silicons, 0.5 3.5 parts of calcium carbonate, 12 parts of coupling agents, 12 parts of crosslinking agents, 0.5 1 parts of antioxidant.
As preferably, the apparent density of described four acicular type zinc oxide crystal whisker is 0.1 0.3 g / cm3。
As preferably, the granularity of described vermiculite power is 10 30 mesh.
As preferably, the coupling agent of both sides surface layer all uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
As preferably, the crosslinking agent of both sides surface layer all uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
As preferably, the antioxidant of both sides surface layer all uses 2, tri-grades of butyl-4-methylphenols of 6-.
As preferably, described binding agent is glue.
As preferably, the particle diameter of described nano silicon is 40 80nm, and specific surface area is 150 200m2/g。
As can be known from the above technical solutions, the acoustic material of the present invention uses nitrile rubber, with vermiculite power as filler, can reach preferable acoustically effective；Meanwhile, use intermediate layer be pure fiber crops embryo cloth, side surface layer be nitrile rubber layer, another side be three layers of thermoplastic resin, substantially increase soundproof effect.
Detailed description of the invention
The present invention is described more detail below, and illustrative examples and explanation in this present invention are used for explaining the present invention, but not as a limitation of the invention.
Automobile multilayer absorbs sound acoustic dampening composite, it is by up of three layers, intermediate layer is ramie embryo cloth, side surface layer is nitrile rubber layer, opposite side surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, is added with vermiculite power, coupling agent, crosslinking agent and antioxidant in nitrile rubber layer；Thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, nano silicon, calcium carbonate, coupling agent, crosslinking agent and antioxidant.The surface texture of the ramee in ramie embryo cloth can play the good effect consuming acoustic wave energy.Some hollow of ramee cell, a part of edge attached cell matter.Having simple pit on ramee cell wall, it communicates with peripheral fibres cell or cell wall cell.Cell is the same with fiber finer cell wall in oval, polygon with irregularly shaped, when sound wave passes entrance ramie embryo cloth from side facing, sound wave by multiple reflections, absorption and rubs in fibrous inside and fabric gap between same fiber so that the big lossy of acoustic wave energy, sound absorbing capabilities is greatly reinforced.The binding agent of the present invention uses glue, and its main component PVAL adhesive property is good.Under pressure, glue has certain permeability, it is possible to well bond with ramie fabric, but ramie fabric can not be permeated completely, so that there is gap between ramee, when sound wave enters, part energy must be consumed, thus improve sound absorbing capabilities further.
As preferably, nitrile rubber layer forms according to the mass fraction of 55 65 parts of nitrile rubbers, 30 40 parts of vermiculite powers, 12 parts of coupling agents, 12 parts of crosslinking agents and 0.5 1 parts of antioxidant；Wherein nitrile rubber has oil resistant, resistance to benzene, the performance such as ageing-resistant and when by External Force Acting, can produce energy loss, be the excellent sound absorption base material under various frequency；Four acicular type zinc oxide crystal whisker density is high, and ratio weighs 5.8, absorbable acoustic vibration, and is converted to heat energy, makes material have sound absorption function, thus reaches soundproof effect, and the apparent density of the four acicular type zinc oxide crystal whisker of the present invention is 0.1 0.3 g / cm3, can reach optimal soundproof effect；Vermiculite power, as foaming characteristic filler, can make acoustic velocity of material be remarkably decreased, and attenuation constant substantially increases, and can reach preferable acoustically effective；And vermiculite power density is little, cheap, when the granularity of use is 10 30 mesh, not only acting as filling effect, and can form air layer, acoustically effective is optimal.
Thermoplastic resin forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 26 parts of four acicular type zinc oxide crystal whiskers, 0.5 2.5 parts of nano silicons, 0.5 3.5 parts of calcium carbonate, 12 parts of coupling agents, 12 parts of crosslinking agents, 0.5 1 parts of antioxidant；Wherein in ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt% so that the quick adhesive property of copolymer is preferable；And copolymer is without solvent, free from environmental pollution, security is higher；Four acicular type zinc oxide crystal whisker density is high, and ratio weighs 5.8, absorbable acoustic vibration, and is converted to heat energy, makes material have sound absorption function, thus reaches soundproof effect, and the apparent density of the four acicular type zinc oxide crystal whisker of the present invention is 0.1 0.3 g / cm3, can reach optimal soundproof effect.
The filler of the present invention also uses nano silicon, and nano silicon has porous, polymolecularity, light weight, and chemical stability is preferable, and it has good compatibility and interface bond strength with ethylene-vinyl acetate copolymer.The present invention uses 0.5 2.5 parts of nano silicons, and its particle diameter is 40 80nm, and specific surface area is 150 200m2/g, and it mixes with four acicular type zinc oxide crystal whisker, can promote soundproof effect.The filler of the present invention is possibly together with 0.5 3.5 parts of calcium carbonate, and its average grain diameter is 20 30nm, and calcium carbonate can react with ethylene-vinyl acetate copolymer, so that having good compatibility between ethylene-vinyl acetate copolymer and filler.
Coupling agent can reduce the viscosity of ethylene-vinyl acetate copolymer, improves the decentralization of four acicular type zinc oxide crystal whisker to improve processing characteristics, and then makes the material of preparation obtain good surface quality and mechanical performance etc.；The coupling agent of the present invention uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane；The content of crosslinking agent, without too high, only need it that thermoplastic resin can be made fully to solidify and cross-links, and the present invention uses stearoyl, chloro benzoyl peroxide or cumyl peroxide, can obtain more preferable effect；Antioxidant uses 2, and tri-grades of butyl-4-methylphenols of 6-, it has high oxidation resistance, good with the compatibility of nitrile rubber, does not separates out, will not polluted product.
Embodiment 1
By mass fraction by 1 part of aminopropyl triethoxysilane and the mixing of 30 parts of vermiculite powers, wherein the granularity of vermiculite power is 10 mesh, the apparent density of four acicular type zinc oxide crystal whisker be 0.1 g/ cm3；Add 55 parts of nitrile rubbers, 1 part of stearoyl and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 80 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 130 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 25min, make the thick nitrile rubber layer sound insulation sheet material of 6mm.
By mass fraction by 1 part of aminopropyl triethoxysilane, 2 parts of four acicular type zinc oxide crystal whiskers, 0.5 part of nano silicon and the mixing of 0.5 part of calcium carbonate, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.1 g/ cm3, the particle diameter of nano silicon is 40nm, and specific surface area is 150m2/ g, the average grain diameter of calcium carbonate is 20nm；Add 90 parts of ethylene-vinyl acetate copolymers, 1 part of stearoyl and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 80 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 130 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 25min, make the thick thermoplastic resin sound insulation sheet material of 2mm.
Above-mentioned nitrile rubber layer sound insulation sheet material and thermoplastic resin sound insulation sheet material are bonded with intermediate layer ramie embryo cloth glue as both sides surface layer, obtains 3-layer composite material.After testing, this 3-layer composite material oise insulation factor in the frequency range of 2000 2500Hz reaches 46.5dB, and the acoustic absorptivity in the frequency range of 1000 1500Hz reaches 0.42.
Embodiment 2
By mass fraction by 2 parts of VTESs and the mixing of 35 parts of vermiculite powers, wherein the granularity of vermiculite power is 20 mesh, the apparent density of four acicular type zinc oxide crystal whisker be 0.2 g/ cm3；Add 60 parts of nitrile rubbers, 1 part of mistake chloro benzoyl peroxide and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 90 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 140 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 20min, make the thick nitrile rubber layer sound insulation sheet material of 6mm.
By mass fraction by 2 parts of VTESs, 6 parts of four acicular type zinc oxide crystal whiskers, 1 part of nano silicon and the mixing of 0.5 part of calcium carbonate, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.2 g/ cm3, the particle diameter of nano silicon is 60nm, and specific surface area is 180m2/ g, the average grain diameter of calcium carbonate is 25nm；Add 95 parts of ethylene-vinyl acetate copolymers, 1 part of mistake chloro benzoyl peroxide and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 90 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 140 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 20min, make the thick thermoplastic resin sound insulation sheet material of 2mm.
Above-mentioned nitrile rubber layer sound insulation sheet material and thermoplastic resin sound insulation sheet material are bonded with intermediate layer ramie embryo cloth glue as both sides surface layer, obtains 3-layer composite material.After testing, this 3-layer composite material oise insulation factor in the frequency range of 2000 2500Hz reaches 51.8dB, and the acoustic absorptivity in the frequency range of 1000 1500Hz reaches 0.44.
Embodiment 3
By mass fraction by 2 parts of ethylenediamine hydroxypropyl methyl dimethoxysilane and the mixing of 40 parts of vermiculite powers, wherein the granularity of vermiculite power is 30 mesh, the apparent density of four acicular type zinc oxide crystal whisker be 0.3 g/ cm3；Add 65 parts of nitrile rubbers, 2 parts of cumyl peroxides and 1 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 100 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 150 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 15min, make the thick nitrile rubber layer sound insulation sheet material of 6mm.
By mass fraction by 2 parts of ethylenediamine hydroxypropyl methyl dimethoxysilane, 4 parts of four acicular type zinc oxide crystal whiskers, 2.5 parts of nano silicons and the mixing of 3.5 parts of calcium carbonate, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.3 g/ cm3, the particle diameter of nano silicon is 80nm, and specific surface area is 200m2/ g, the average grain diameter of calcium carbonate is 30nm；Add 100 parts of ethylene-vinyl acetate copolymers, 2 parts of cumyl peroxides and 1 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix；Then with screw extruder carry out extruding, granulation, the operating temperature of extruder keeps 100 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 150 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 15min, make the thick thermoplastic resin sound insulation sheet material of 2mm.
Above-mentioned nitrile rubber layer sound insulation sheet material and thermoplastic resin sound insulation sheet material are bonded with intermediate layer ramie embryo cloth glue as both sides surface layer, obtains 3-layer composite material.After testing, this 3-layer composite material oise insulation factor in the frequency range of 2000 2500Hz reaches 46.9dB, and the acoustic absorptivity in the frequency range of 1000 1500Hz reaches 0.45.
The technical scheme provided the embodiment of the present invention above is described in detail, principle and the embodiment of the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only applicable to help to understand the principle of the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as limitation of the present invention.

Claims (10)

1. automobile multilayer absorbs sound acoustic dampening composite, it is by up of three layers, intermediate layer is ramie embryo cloth, side surface layer is nitrile rubber layer, opposite side surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, is added with vermiculite power, coupling agent, crosslinking agent and antioxidant in nitrile rubber layer；Thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, nano silicon, calcium carbonate, coupling agent, crosslinking agent and antioxidant.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: described nitrile rubber layer forms according to the mass fraction of 55 65 parts of nitrile rubbers, 30 40 parts of vermiculite powers, 12 parts of coupling agents, 12 parts of crosslinking agents and 0.5 1 parts of antioxidant.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: described thermoplastic resin forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 26 parts of four acicular type zinc oxide crystal whiskers, 0.5 2.5 parts of nano silicons, 0.5 3.5 parts of calcium carbonate, 12 parts of coupling agents, 12 parts of crosslinking agents, 0.5 1 parts of antioxidant.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the apparent density of described four acicular type zinc oxide crystal whisker is 0.1 0.3 g/cm3。
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the granularity of described vermiculite power is 10 30 mesh.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the coupling agent of both sides surface layer all uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the crosslinking agent of both sides surface layer all uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the antioxidant of both sides surface layer all uses 2, tri-grades of butyl-4-methylphenols of 6-.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: described binding agent is glue.
The most according to claim 1, absorb sound acoustic dampening composite, it is characterised in that: the particle diameter of described nano silicon is 40 80nm, and specific surface area is 150 200m2/g。
CN201610267089.7A 2016-04-27 2016-04-27 Multilayer sound absorption and sound insulation composite material for automobiles Pending CN105882053A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106674781A (en) * 2016-12-01 2017-05-17 重庆雨帝建材有限公司 Interior decoration board and producing technology thereof
CN111029590A (en) * 2019-12-25 2020-04-17 苏州清陶新能源科技有限公司 Battery pole piece substrate, preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10340087A (en) * 1997-06-09 1998-12-22 Ikeda Bussan Co Ltd Soundproofing and heat insulating member
US20060246797A1 (en) * 2005-04-27 2006-11-02 Rabasco John J Sound absorbing laminates
CN102862527A (en) * 2012-09-12 2013-01-09 浙江艾迪雅科技股份有限公司 Automobile damping plate and manufacturing method thereof
CN103897262A (en) * 2012-12-27 2014-07-02 浙江艾迪雅科技股份有限公司 Low cost and high efficient soundproof material and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10340087A (en) * 1997-06-09 1998-12-22 Ikeda Bussan Co Ltd Soundproofing and heat insulating member
US20060246797A1 (en) * 2005-04-27 2006-11-02 Rabasco John J Sound absorbing laminates
CN102862527A (en) * 2012-09-12 2013-01-09 浙江艾迪雅科技股份有限公司 Automobile damping plate and manufacturing method thereof
CN103897262A (en) * 2012-12-27 2014-07-02 浙江艾迪雅科技股份有限公司 Low cost and high efficient soundproof material and manufacturing method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李康: "层合多孔吸声隔音复合材料", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *
魏昶等: "四针状氧化锌晶须制备方法及其在复合材料中的应用", 《矿冶》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106674781A (en) * 2016-12-01 2017-05-17 重庆雨帝建材有限公司 Interior decoration board and producing technology thereof
CN111029590A (en) * 2019-12-25 2020-04-17 苏州清陶新能源科技有限公司 Battery pole piece substrate, preparation method and application thereof

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Application publication date: 20160824