CN105922671A - Multilayer composite sound insulation material for automobiles - Google Patents

Multilayer composite sound insulation material for automobiles Download PDF

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Publication number
CN105922671A
CN105922671A CN201610267090.XA CN201610267090A CN105922671A CN 105922671 A CN105922671 A CN 105922671A CN 201610267090 A CN201610267090 A CN 201610267090A CN 105922671 A CN105922671 A CN 105922671A
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CN
China
Prior art keywords
multilayer composite
deadener
parts
sound insulation
zinc oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610267090.XA
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Chinese (zh)
Inventor
钟静清
韦晗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liuzhou Shentong Automobile Technology Co Ltd
Original Assignee
Liuzhou Shentong Automobile Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liuzhou Shentong Automobile Technology Co Ltd filed Critical Liuzhou Shentong Automobile Technology Co Ltd
Priority to CN201610267090.XA priority Critical patent/CN105922671A/en
Publication of CN105922671A publication Critical patent/CN105922671A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The invention relates to an automobile sound insulation material, and concretely relates to a multilayer composite sound insulation material for automobiles. The multilayer composite sound insulation material is composed of the following three layers: a middle layer which is ramie gray cloth, and surface layers which are arranged at two sides and are thermoplastic resin layers, the surface layers at two sides are bonded to the middle layer through an adhesive, and the thermoplastic resin layers adopt an ethylene-vinyl acetate copolymer, and also contain tetrapod-like zinc oxide whisker, a coupling agent, a cross-linking agent and an antioxidant. The sound insulation material adopts the ethylene-vinyl acetate copolymer and adopts the tetrapod-like zinc oxide whisker as a filler, so the addition amount of the filler is small, and the prepared material has a good sound insulation effect; and three layers comprising the middle layer ramie gray cloth and two surface layers thermoplastic resin layers at two sides are adopted, so the sound insulation effect is substantially improved.

Description

Automobile MULTILAYER COMPOSITE deadener
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 deadener, thermostability, 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 preferable MULTILAYER COMPOSITE deadener.
The technical solution used in the present invention is: automobile MULTILAYER COMPOSITE deadener, it is by up of three layers, intermediate layer is Boehmeria embryo cloth, both sides surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, described thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, coupling agent, cross-linking agent and antioxidant.
As preferably, each side facing forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 3 10 parts of four acicular type zinc oxide crystal whiskers, 12 parts of coupling agents, 12 parts of cross-linking agent, 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, in described ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt%.
As preferably, described coupling agent uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
As preferably, described cross-linking agent uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
As preferably, described antioxidant uses 2, tri-grades of butyl-4-methylphenols of 6-.
As preferably, described binding agent is glue.
As can be known from the above technical solutions, the deadener of the present invention uses ethylene-vinyl acetate copolymer, and with four acicular type zinc oxide crystal whisker as filler, not only filler addition is less, and the material soundproof effect prepared is preferable；Meanwhile, use intermediate layer be pure fiber crops embryo cloth, both sides surface layer 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 COMPOSITE deadener, it is by up of three layers, intermediate layer is Boehmeria embryo cloth, both sides surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, described thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, coupling agent, cross-linking agent and antioxidant.The surface texture of the ramee in Boehmeria 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 Boehmeria 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, each side facing forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 3 10 parts of four acicular type zinc oxide crystal whiskers, 12 parts of coupling agents, 12 parts of cross-linking agent, 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, safety is higher；3 10 parts of four acicular type zinc oxide crystal whiskers, four acicular type zinc oxide crystal whisker density is high, and ratio weighs 5.8, absorbable sonic vibration, and be converted to heat energy, make material have sound absorption function, thus reaching soundproof effect, 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.
Coupling agent can reduce the viscosity of ethylene-vinyl acetate copolymer, improves the dispersion 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 cross-linking 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, and the compatibility with nitrile rubber is good, does not separates out, will not polluted product.
Embodiment 1
By mass fraction by 1 part of aminopropyl triethoxysilane and the mixing of 3 parts of four acicular type zinc oxide crystal whiskers, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.1 g/ cm3；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 homogeneously；Then with screw extruder carry out extruding, pelletize, 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 sound insulation sheet material of 6mm；This sheet material is bonded with intermediate layer Boehmeria embryo cloth glue as both sides surface layer, obtains three layers of composite sound isolating material.After testing, this three layers of composite sound isolating 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, 2 parts of VTESs and 6 parts of four acicular type zinc oxide crystal whiskers are mixed, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.2 g/ cm3；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 homogeneously；Then with screw extruder carry out extruding, pelletize, 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 sound insulation sheet material of 6mm；This sheet material is bonded with intermediate layer Boehmeria embryo cloth glue as both sides surface layer, obtains three layers of composite sound isolating material.After testing, this three layers of composite sound isolating material oise insulation factor in the frequency range of 2000 2500Hz reaches 51.2dB, and the acoustic absorptivity in the frequency range of 1000 1500Hz reaches 0.45.
Embodiment 3
By mass fraction, 2 parts of ethylenediamine hydroxypropyl methyl dimethoxysilane and 10 parts of four acicular type zinc oxide crystal whiskers are mixed, wherein the apparent density of four acicular type zinc oxide crystal whisker be 0.3 g/ cm3；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 homogeneously；Then with screw extruder carry out extruding, pelletize, 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 sound insulation sheet material of 6mm；This sheet material is bonded with intermediate layer Boehmeria embryo cloth glue as both sides surface layer, obtains three layers of composite sound isolating material.After testing, this three layers of composite sound isolating material oise insulation factor in the frequency range of 2000 2500Hz reaches 48.0dB, and the acoustic absorptivity in the frequency range of 1000 1500Hz reaches 0.43.
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 (8)

1. automobile MULTILAYER COMPOSITE deadener, it is by up of three layers, intermediate layer is Boehmeria embryo cloth, both sides surface layer is thermoplastic resin, both sides surface layer passes through binding agent and interlayer adhesion, described thermoplastic resin uses ethylene-vinyl acetate copolymer, is wherein added with four acicular type zinc oxide crystal whisker, coupling agent, cross-linking agent and antioxidant.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: each side facing forms according to the mass fraction of 90 100 parts of ethylene-vinyl acetate copolymers, 3 10 parts of four acicular type zinc oxide crystal whiskers, 12 parts of coupling agents, 12 parts of cross-linking agent, 0.5 1 parts of antioxidant.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: the apparent density of described four acicular type zinc oxide crystal whisker is 0.1 0.3 g/cm3。
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: in described ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt%.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: described coupling agent uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: described cross-linking agent uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: described antioxidant uses 2, tri-grades of butyl-4-methylphenols of 6-.
MULTILAYER COMPOSITE deadener the most according to claim 1, it is characterised in that: described binding agent is glue.
CN201610267090.XA 2016-04-27 2016-04-27 Multilayer composite sound insulation material for automobiles Pending CN105922671A (en)

Priority Applications (1)

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CN201610267090.XA CN105922671A (en) 2016-04-27 2016-04-27 Multilayer composite sound insulation material for automobiles

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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》 *

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Application publication date: 20160907

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