CN103863342B - Sound insulation and absorption materials for high speed train and manufacturing method thereof - Google Patents
Sound insulation and absorption materials for high speed train and manufacturing method thereof Download PDFInfo
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- CN103863342B CN103863342B CN201210529025.1A CN201210529025A CN103863342B CN 103863342 B CN103863342 B CN 103863342B CN 201210529025 A CN201210529025 A CN 201210529025A CN 103863342 B CN103863342 B CN 103863342B
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Abstract
The invention relates to sound insulation and absorption materials for a high speed train and a manufacturing method thereof. The sound insulation and absorption materials are formed by compounding a wearing layer, a fiber layer, a damping layer and a foaming layer, the fiber layer is used as the basic cloth layer of the wearing layer, the fiber layer and the damping layer are adhered between the wearing layer and the foaming layer, and the fiber layer is adhered to between the wearing layer and the damping layer. With sound insulation and absorption performances as well as thermal insulation performance, the sound insulation and absorption materials compensate each other on the performance and generate the synergistic effect, so the materials can be applied to the internal surface of the car body of the high speed train to achieve the effects of sound insulation and absorption as well as thermal insulation, such as sound insulation and thermal insulation of side walls and floors. The materials also have the features of easy processing and formation, tread resistance and little environment pollution, and several kinds of materials are compounded to improve the assembly efficiency of materials.
Description
Technical field
The present invention relates to a kind of sound-proof sound-absorbing material, more particularly to a kind of sound-proof sound-absorbing material used on bullet train
And manufacture method.
Background technology
With the continuous development of high-speed rail technology, the vibration noise problem of bullet train increasingly arrives people's concern and weighs
Depending on.For the vibration and noise control problem of bullet train, excessive quantifier elimination is successively carried out both at home and abroad.Mainly around vibration source with
Sound source control, vibration and the broad aspect of acoustic propagation control and material and structure control etc. three.Theoretically, vibration source and sound are controlled
Source is most basic method, but at present with regard to the practical situation of China from the point of view of, carry out this work and also there is certain difficulty.Control is shaken
It is dynamic with noise transmission and the utilization of novel damping acoustic damping materials and acoustics structure design are just into a kind of particularly important means,
So at home and abroad for the research of vibration and noise reducing material is enlivened very much.Risen to in-car by using sound insulating material and sound-absorbing material
To the purpose of the noise reduction comfortableness in-car to improve bullet train.
The content of the invention
Present invention is primarily aimed at overcoming the deficiencies in the prior art, there is provided a kind of bullet train with sound-proof sound-absorbing material and
Its manufacture method, can be obviously improved the sound insulation of high-speed train body, sound absorption and heat insulation effect.
For achieving the above object, the technical scheme is that：
A kind of bullet train sound-proof sound-absorbing material, is composited by wearing layer, fibrous layer, damping layer and foaming layer, institute
State fibrous layer to be bonded in the wearing layer and foaming layer as the wearing layer base cloth layer, the fibrous layer and damping layer
Between, the fibrous layer is bonded in the centre of the wearing layer and damping layer.
Further, the wearing layer has convex-concave surface.
Further, the convex-concave surface of the wearing layer is wrinkle shape.
Further, the material of the wearing layer, damping layer and foaming layer is the compositionss of PVC and compound.
Further, in the material of the wearing layer, damping layer and foaming layer, the weight ratio of the PVC is 80%-95%.
Further, in the material of the wearing layer, damping layer and foaming layer, the weight of the PVC is than preferably 85%-
90%。
Further, the compound in the wearing layer, damping layer and foaming layer includes filler, fire retardant, stabilizer, ultraviolet
The compositionss of one or more in light absorbers, lubricant, plasticizer or foaming agent.
Further, the compound in the wearing layer is filler, fire retardant, stabilizer, UV absorbent and lubricant
Compositionss, wherein, filler is nano-calcium carbonate, and fire retardant is antimony oxide, and stabilizer is antioxidant bisphenol-A, ultraviolet
Absorbent is triazine -5, and lubricant is the compositionss of stearic acid and paraffin.
Further, the content of the filler in the wearing layer is 35-160 parts, and the content of fire retardant is 3-20 parts, stabilizer
Content be 0.3-2.8 parts, the content of UV absorbent is 0.1-1 parts, and the content of lubricant is 1-3 parts.
Further, the compound in the damping layer be filler, fire retardant, plasticizer, stabilizer, UV absorbent and
The compositionss of lubricant, wherein, filler is the compositionss of nano-calcium carbonate and barium sulfate, and fire retardant is antimony oxide, plasticising
Agent is phthalate, and stabilizer is antioxidant bisphenol-A, and UV absorbent is triazine -5, lubricant be stearic acid and
The compositionss of paraffin.
Further, the content of filler is 100-230 parts in the damping layer, and the content of fire retardant is 3-15 parts, plasticizer
Content be 15-45 parts, the content of stabilizer is 1-4 part, and the content of UV absorbent is 0.1-1 parts, the content of lubricant
For 1-3 parts.
Further, the compound in the foaming layer is filler, fire retardant, plasticizer, stabilizer, foaming agent, ultraviolet
The compositionss of absorbent and lubricant, wherein, filler is nano-calcium carbonate, and fire retardant is antimony oxide, and plasticizer is adjacent benzene
Diformic ester, stabilizer is antioxidant bisphenol-A, and foaming agent is blowing agent AC, and UV absorbent is triazine -5, and lubricant is
The compositionss of stearic acid and paraffin.
Further, the content of the filler in the foaming layer is 25-55 parts, and the content of fire retardant is 3-15 parts, plasticizer
Content be 3-20 parts, the content of stabilizer is 1-4 part, and the content of foaming agent is 3-15 parts, and the content of UV absorbent is
0.1-1 parts, the content of lubricant is 1-2 parts.
Further, the fibrous layer is thermoplastic poly ester layer.
Further, the thickness of the wearing layer is in 1-1.5 mm.
Further, the thickness of the fibrous layer is about 0.1-0.3 mm.
Further, the thickness of the damping layer is about 3-5mm.
Further, the thickness 4-6 mm of the foaming layer.
The present invention another technical scheme be：
A kind of bullet train manufacture method of sound-proof sound-absorbing material, comprises the steps：
Sheet material is processed into into respectively in wearing layer, fibrous layer, damping layer and foaming layer；
In one layer of adhesive of layers of material surface-coated；
Each layer is successively bonded by hot pressing, ultimately forms four layers of composite material.
To sum up content, a kind of bullet train sound-proof sound-absorbing material and manufacture method of the present invention, by sound insulation material and
Sound absorption material is composited, and has the performances such as sound insulation property, sound absorbing capabilities, heat-insulating property concurrently, and sound-proof sound-absorbing composite is in performance
Make up for each other's deficiencies and learn from each other, produce cooperative effect, can be applicable to the car body inner surface of bullet train, play sound insulation, sound absorption and insulation effect,
Such as side wall, floor sound insulation, it is heat-insulated with.The material also shapes with easy processing, resistance to trample, the characteristics of environmental pollution is little, and
And different materials are combined with each other, the efficiency of assembling of material is improve.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the change curve of the acoustic absorptivity with frequency of composite wood of the present invention；
Fig. 3 is the change curve of the oise insulation factor with frequency of composite wood of the present invention；
Fig. 4 is composite wood damping capacity variation with temperature curve of the present invention.
As shown in Figures 1 to 4, wearing layer 1, fibrous layer 2, damping layer 3, foaming layer 4.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment：
As shown in figure 1, bullet train of the present invention sound-proof sound-absorbing material, by wearing layer 1, fibrous layer 2, damping layer
3 and foaming layer 4 be composited, fibrous layer 2 as wearing layer 1 base cloth layer, fibrous layer 2 and damping layer 3 be bonded in wearing layer 1 and
The centre of foaming layer 4, fibrous layer 2 is bonded in the centre of wearing layer 1 and damping layer 3.
The material of wearing layer 1, damping layer 3 and foaming layer 4 is PVC（Polrvinyl chloride）, in order that material reaches excellent property
Can, dose compound again in main material PVC, it is the compositionss of PVC and compound, fibrous layer 2 is thermoplastic poly ester layer.It is resistance to
In the material of mill layer 1, damping layer 3 and foaming layer 4, the weight of PVC accounts for the 80%-95% of gross weight, preferred 85%-90%.
Wherein, the main component of the wearing layer 1 of ground floor is PVC, and preferably uses the ultra low polymerization degree that the degree of polymerization is 300
PVC, the thickness of wearing layer 1 between 1-1.5 mm, density 0.5-1.2g/cm3, Shao Boer abrasion（Roller wears away）Load is
5N.The compound of wearing layer 1 is the compositionss of filler, fire retardant, stabilizer, UV absorbent and lubricant, each component
Composition and content are as follows：
Filler：Filler not only affects the processing characteristics of this formula system and the intensity of material, also to the acoustics of material
Performance has a major impact, when filler is selected, according to the environment for using of material and to need noisy frequency range to be processed true
It is fixed, the species and consumption of filler.The present embodiment preferably uses nano-calcium carbonate, content to account for 35-160 parts, preferably 50 parts -150 parts.
Fire retardant：Composite products on bullet train should have good fire resistance, because base material is polychlorostyrene
Ethylene, selects to require and requirement of the material to anti-flammability according to the fire retardant of polrvinyl chloride, should consider fire resistance, examines again
Consider the environmental-protecting performance of material, the present embodiment preferably uses antimony oxide, content to account for 3-20 parts, preferably 5 parts -15 parts.
Stabilizer：It is higher using the environmental requirement of material in view of bullet train, from lead-free Ca Zn composite class heat
Stabilizer, the present embodiment preferably uses antioxidant bisphenol-A, and content accounts for 0.3-2.8 parts, preferably 0.5 part -2.5 parts.
UV absorbent：The present embodiment preferably uses triazine -5, content to account for 0.1-1 parts, preferred 0.1-0.8 parts.
Lubricant：The present embodiment preferably uses the compositionss of stearic acid and paraffin, and total number is 1-3 parts.
Wearing layer 1 has convex-concave surface, i.e., using the convex-concave surface of wrinkle shape, the Main Function of wearing layer 1 is protection
Effect, reinforcing material wearability；Meanwhile, while there is certain sound insulation effect, its concave-convex surface mechanism has in terms of acoustical behavior
There is certain advantage, compared with planar materials, it can form the refraction of different angles to sound, so as to increase noise transmission process
In acoustic attenuation, weaken noise transmission.
The composition of the fibrous layer 2 of the second layer is polybutylene terephthalate (PBT), and thickness is about 0.1-0.3 mm, this layer
Main Function should be the base fabric of protective layer, mainly strengthen the effect of skin-material, while facilitating the molding on top layer.
The damping layer 3 of the second layer is high-density layer, and the main component of damping layer 3 is PVC, and preferred degree of polymerization is 1200
PVC, the thickness of damping layer 3 is about 3-5mm.Compound in damping layer 3 is filler, fire retardant, plasticizer, stabilizer, ultraviolet
The compositionss of light absorbers and lubricant, the composition and content of each component is as follows：
Filler selects the compositionss of nano-calcium carbonate and barium sulfate, wherein, 20 parts -60 parts of nano-calcium carbonate, barium sulfate 80-
170 parts；
Fire retardant selects antimony oxide, 3-15 parts, preferably 5 parts -10 parts；
Plasticizer selects phthalate, 15-45 parts, preferred 15-35 parts；
Stabilizer select antioxidant bisphenol-A, 1-4 part, preferably 1.5 parts-3.5 parts；
UV absorbent selects triazine -5,0.1-1 parts, preferred 0.1-0.8 parts；
From stearic acid and the compositionss of paraffin, total number is 1 part -3 parts to lubricant.
The Main Function of damping layer 3 is to provide damping shock absorption and sound insulation effect.
The main component of the 4th layer of foaming layer 4 is PVC, and preferred degree of polymerization is 600 PVC, the thickness 4-6 of foaming layer 4
Mm, the compound in foaming layer 4 is filler, fire retardant, plasticizer, stabilizer, foaming agent, UV absorbent and lubricant
Compositionss, the composition and content of each component is as follows：
Filler selects nano-calcium carbonate, 25-55 parts, preferably 30 parts -50 parts；
Fire retardant selects antimony oxide, 3-15 parts, preferably 5 parts -10 parts；
Plasticizer selects phthalate, 3-20 parts, preferred 5-15 parts；
Stabilizer select antioxidant bisphenol-A, 1-4 part, preferably 1.5 parts-3.5 parts；
Foaming agent selects blowing agent AC, 3-15 parts, preferred 5-12 parts；
UV absorbent selects triazine -5,0.1-1 parts, preferred 0.1-0.8 parts；
From stearic acid and the compositionss of paraffin, total number is 1 part -2 parts to lubricant.
Foaming layer 4 adopts hole-closing structure, primarily serves the heat-insulated effect of sound absorption.
The composite, it is resistance to trample with easy processing shaping, the characteristics of environmental pollution is little, it is more suited to side wall, floor
Sound insulation, heat-insulated use.
Sample is made with each component content of above-mentioned preferred value, it is absorbed sound, the sound that insulates against sound, damping, insulation, abrasion and
The indexs such as anti-flammability are in condition of different temperatures（Room temperature, normal temperature environment, low temperature environment, Alternate hot and humid）Under tested, its
Sound absorption, sound insulation and damping and amortization in terms of premium properties can from Fig. 2, Fig. 3 and Fig. 4, the composite 3000Hz～
In 6400Hz frequency domains sound absorbing capabilities preferably, oise insulation factor in 7dB～21dB, in terms of damping capacity, the loss of composite
There is peak value in the range of 20 DEG C～40 DEG C in the factor, reaches 0.37, and the damping capacity of composite is higher.In heat preservation and insulation
Aspect, the heat conductivity of the composite is typically in 0.04Wm-1·K-1Left and right, substantially below 0.05 W/ (mK) belongs to
Thermal insulation material.In addition, the wear hardness aspect of the material, abrasion mass average value is all between 190-195mg.Fire-retardant
Property aspect, the oxygen index (OI) of the composite is 30%, and the oxygen of the macromolecular material sound absorption insulation material used on current EMUs refers to
Number（Data are between 21%-36%）, between the numerical value of the sound absorption insulation material that data are used on current EMUs.Jing is tested
Checking, the composite has the performance such as sound insulation, sound absorption, insulation, fire-retardant, wear-resisting, makes up for each other's deficiencies and learn from each other in performance, produces association
Same effect, can be applicable to the car body inner surface of bullet train, play sound insulation, sound absorption and insulation effect.
The manufacture method of above-mentioned sound-proof sound-absorbing material, comprises the steps：
1st, each formable layer, by wearing layer, fibrous layer, damping layer and foaming layer sheet material is processed into respectively：
By wearing layer, fibrous layer, damping layer, by plasticizing dispersion stirring, extrusion, calendering and wrapup procedure working into coil
Material.
By foaming layer, foaming volume is processed into by plasticizing dispersion stirring, extrusion, calendering, foamable and wrapup procedure.
2nd, by four layers of composite molding：
First, by wearing layer, fibrous layer, the three-layer tablet shape material of damping layer it is compound, i.e., in layers of material surface-coated
One layer of adhesive, then the composite molding by way of heat pressure adhesive.Specifically, while ground floor wearing layer extrusion molding,
Second layer fibrous layer is passed through into hot-pressing roller together with ground floor wearing layer, it is hot-forming, then carry out with third layer damping layer
Brush coating heats heat pressure adhesive, makes three layers of composite bed,
Then, above-mentioned three layers of composite bed and the 4th layer of foaming layer are carried out into brush coating, heating hot pressing is mediated, and finally makes four layers
Composite material.
As described above, combining the plan content given by accompanying drawing, similar technical scheme can be derived.In every case it is not de-
From the content of technical solution of the present invention, above example is made any simple modification according to the technical spirit of the present invention, etc.
With change and modification, still fall within the range of technical solution of the present invention.
Claims (9)
1. a kind of bullet train sound-proof sound-absorbing material, it is characterised in that：Vehicle body side wall surface is installed on, by wearing layer, fiber
Layer, damping layer and foaming layer are composited, and the fibrous layer glues as the wearing layer base cloth layer, the fibrous layer and damping layer
In the wearing layer and the centre of foaming layer, the fibrous layer is bonded in the centre of the wearing layer and damping layer to knot；
The material of the wearing layer, damping layer and foaming layer is the compositionss of PVC and compound, and the weight ratio of the PVC is
80%-95%；
, from the PVC that the degree of polymerization is 300, the thickness of wearing layer is between 1-1.5mm for the wearing layer；
The fibrous layer is thermoplastic poly ester layer, and the thickness of fibrous layer is 0.1-0.3mm；
From the PVC that the degree of polymerization is 1200, the thickness of damping layer is 3-5mm to the damping layer；
The foaming layer adopts hole-closing structure from the PVC that the degree of polymerization is 600, the thickness 4-6mm of foaming layer, the foaming layer；
Compound in the wearing layer, damping layer and foaming layer includes filler, fire retardant, stabilizer, UV absorbent, profit
Lubrication prescription, plasticizer.
2. bullet train according to claim 1 sound-proof sound-absorbing material, it is characterised in that：The wearing layer has concavo-convex
Surface.
3. bullet train according to claim 2 sound-proof sound-absorbing material, it is characterised in that：The concavo-convex table of the wearing layer
Face is wrinkle shape.
4. bullet train according to claim 1 sound-proof sound-absorbing material, it is characterised in that：Dosing in the wearing layer
Agent is the compositionss of filler, fire retardant, stabilizer, UV absorbent and lubricant, wherein, filler is nano-calcium carbonate, resistance
Combustion agent is antimony oxide, and stabilizer is antioxidant bisphenol-A, and UV absorbent is triazine -5, and lubricant is stearic acid and stone
The compositionss of wax.
5. bullet train according to claim 4 sound-proof sound-absorbing material, it is characterised in that：Filler in the wearing layer
Content be 35-160 parts, the content of fire retardant is 3-20 parts, and the content of stabilizer is 0.3-2.8 parts, UV absorbent
Content is 0.1-1 parts, and the content of lubricant is 1-3 parts.
6. bullet train according to claim 1 sound-proof sound-absorbing material, it is characterised in that：Dosing in the damping layer
Agent is the compositionss of filler, fire retardant, plasticizer, stabilizer, UV absorbent and lubricant, wherein, filler is nano-sized carbon
The compositionss of sour calcium and barium sulfate, fire retardant is antimony oxide, and plasticizer is phthalate, and stabilizer is antioxidant
Bisphenol-A, UV absorbent is triazine -5, and lubricant is the compositionss of stearic acid and paraffin.
7. bullet train according to claim 6 sound-proof sound-absorbing material, it is characterised in that：Filler in the damping layer
Content is 100-230 parts, and the content of fire retardant is 3-15 parts, and the content of plasticizer is 15-45 parts, and the content of stabilizer is 1-4
Part, the content of UV absorbent is 0.1-1 parts, and the content of lubricant is 1-3 parts.
8. bullet train according to claim 1 sound-proof sound-absorbing material, it is characterised in that：Dosing in the foaming layer
Agent is the compositionss of filler, fire retardant, plasticizer, stabilizer, foaming agent, UV absorbent and lubricant, wherein, filler is
Nano-calcium carbonate, fire retardant is antimony oxide, and plasticizer is phthalate, and stabilizer is antioxidant bisphenol-A, is foamed
Agent is blowing agent AC, and UV absorbent is triazine -5, and lubricant is the compositionss of stearic acid and paraffin.
9. bullet train according to claim 8 sound-proof sound-absorbing material, it is characterised in that：Filler in the foaming layer
Content be 25-55 parts, the content of fire retardant is 3-15 parts, and the content of plasticizer is 3-20 parts, and the content of stabilizer is 1-4
Part, the content of foaming agent is 3-15 parts, and the content of UV absorbent is 0.1-1 parts, and the content of lubricant is 1-2 parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210529025.1A CN103863342B (en) | 2012-12-08 | 2012-12-08 | Sound insulation and absorption materials for high speed train and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210529025.1A CN103863342B (en) | 2012-12-08 | 2012-12-08 | Sound insulation and absorption materials for high speed train and manufacturing method thereof |
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| CN103863342A CN103863342A (en) | 2014-06-18 |
| CN103863342B true CN103863342B (en) | 2017-05-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115138A1 (en) * | 2015-01-12 | 2016-07-21 | Zephyros, Inc. | Acoustic floor underlay system |
| CN112854643A (en) * | 2020-12-31 | 2021-05-28 | 泰州市华丽新材料有限公司 | High-strength fireproof plate, wear-resistant fireproof veneer taking high-strength fireproof plate as base material and manufacturing method |
| CN117736523A (en) * | 2023-12-19 | 2024-03-22 | 湖南省普瑞达内装材料有限公司 | Sound insulation composite material for vehicle and preparation method thereof |
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| CN2535273Y (en) * | 2002-05-08 | 2003-02-12 | 李慧 | Vehicle plastic flooring |
| CN1223738C (en) * | 2003-01-14 | 2005-10-19 | Lg化学株式会社 | Sound-proof floor and its manufacturing method |
| KR20060037485A (en) * | 2004-10-28 | 2006-05-03 | 히로시마가세이가부시끼가이샤 | Floor pulse sound insulator |
| US20120128946A1 (en) * | 2009-09-23 | 2012-05-24 | Lg Hausys, Ltd. | Flooring material and fabrication method thereof |
| CN202952987U (en) * | 2012-12-08 | 2013-05-29 | 南车青岛四方机车车辆股份有限公司 | Sound insulation and absorption material for high speed train |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2535273Y (en) * | 2002-05-08 | 2003-02-12 | 李慧 | Vehicle plastic flooring |
| CN1223738C (en) * | 2003-01-14 | 2005-10-19 | Lg化学株式会社 | Sound-proof floor and its manufacturing method |
| KR20060037485A (en) * | 2004-10-28 | 2006-05-03 | 히로시마가세이가부시끼가이샤 | Floor pulse sound insulator |
| US20120128946A1 (en) * | 2009-09-23 | 2012-05-24 | Lg Hausys, Ltd. | Flooring material and fabrication method thereof |
| CN202952987U (en) * | 2012-12-08 | 2013-05-29 | 南车青岛四方机车车辆股份有限公司 | Sound insulation and absorption material for high speed train |
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