CN103507361B - For the deadener and preparation method thereof of bullet train - Google Patents
For the deadener and preparation method thereof of bullet train Download PDFInfo
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- CN103507361B CN103507361B CN201310433127.8A CN201310433127A CN103507361B CN 103507361 B CN103507361 B CN 103507361B CN 201310433127 A CN201310433127 A CN 201310433127A CN 103507361 B CN103507361 B CN 103507361B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Abstract
The invention discloses deadener of a kind of bullet train and preparation method thereof, described deadener is by high frequency silencing plate, adhesive layer and low frequency silencing plate composition, wherein, the material of described high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 20-35, low viscosity hydroxy-terminated siloxanes 25-40, novolac polyol 5-15, PPG 3-5, PEPA 3-8, urea 0.2-1.5, benzoyl peroxide 2-3, vinyl-terminated silicone oil 3-5, OBSH1-2, fume colloidal silica 3-6, nano-calcium carbonate 3-4, graphite 2-3, and water, described low frequency silencing plate is made up of the component of following parts by weight: acrylic resin 45-55, nano silicon 8-15, glass fibre 15-25, polyphenylene oxide 10-15, titanium dioxide 3-5, siloxanes 0.01-0.02, fluorinated silicone 0.02-0.05, magnesia 2-5, Ludox 2-3, Yi Jishui.The present invention can significantly reduce 1000-4000Hz noise, and physical property is excellent simultaneously, and intensity and fire resistance meet the relevant criterion of train, and cost is lower, are conducive to large-scale popularization.
Description
Technical field
The present invention relates to the Related products such as high ferro/motor-car, especially a kind of deadener.
Background technology
Since 2007, along with the speed raising of china railway, part train speed per hour reaches 200-300 kilometer, and a large amount of inter-city rail transit is also in the middle of design and construction simultaneously.Bullet train not only effectively improves traffic environment, facilitates the trip of the people, also contributes to driving town and country construction and economic development, has significant economic and social benefit.
But bullet train creates larger noise in running, not only affect resident on the way, and cause many puzzlements to passenger.The noise be transmitted in compartment mainly contains wheel-rail noise, windage noise and slip ring system noise.Research finds: when train speed is at 200-240km/h, the main source of noise is wheel-rail noise; When train is at 240-300km/h, noise is mainly derived from wheel-rail noise, air force and slip ring system noise.For above-mentioned noise, technical staff have employed multiple method control noises and pollutes, and comprise control noises source and increase sound insulationg board, such as improve the design standard of wheel and track, but the soundproof effect of said method is unsatisfactory, the noise in compartment is still higher.
Inventor studies discovery: the noise frequency major part of bullet train all concentrates on the frequency range of 100-4000Hz.
Summary of the invention
Goal of the invention: the present invention will provide a kind of deadener for bullet train and preparation method thereof, in order to eliminate the noise of 100-4000Hz, reduces the noise decibel in compartment, improves the comfort level of user.
Technical scheme: a kind of deadener of bullet train, is made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, and wherein, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 20-35, low viscosity hydroxy-terminated siloxanes 25-40, novolac polyol 5-15, PPG 3-5, PEPA 3-8, urea 0.2-1.5, benzoyl peroxide 2-3, vinyl-terminated silicone oil 3-5, OBSH1-2, fume colloidal silica 3-6, nano-calcium carbonate 3-4, graphite 2-3, Yi Jishui;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45-55, nano silicon 8-15, glass fibre 15-25, polyphenylene oxide 10-15, titanium dioxide 3-5, siloxanes 0.01-0.02, fluorinated silicone 0.02-0.05, magnesia 2-5, Ludox 2-3, Yi Jishui.
Preferably, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 25, low viscosity hydroxy-terminated siloxanes 30, novolac polyol 12, PPG 4, PEPA 5, urea 0.8, benzoyl peroxide 2.5, vinyl-terminated silicone oil 4, OBSH1.5, fume colloidal silica 4, nano-calcium carbonate 3.5, graphite 2.5, water 5.2;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45, nano silicon 10, titanium dioxide 4, siloxanes 0.01, fluorinated silicone 0.03, magnesia 4, Ludox 3, glass fibre 15, polyphenylene oxide 15, water 3.96.
Preferably, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 30, low viscosity hydroxy-terminated siloxanes 25, novolac polyol 5, PPG 5, PEPA 5, urea 1, benzoyl peroxide 3, vinyl-terminated silicone oil 4, OBSH2, fume colloidal silica 6, nano-calcium carbonate 3, graphite 2, water 9;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 50, nano silicon 10, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.04, magnesia 2, Ludox 3, glass fibre 15, polyphenylene oxide 10, water 4.94.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material according to claim 1 and low frequency silencing plate material according to proportioning, adding weight after mixing is 0.05-0.15 water doubly;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 10-15 minute respectively, melt extrude with extruding machine.
Preferably, the process conditions melt extruded are: a district temperature 310-320 DEG C, two district temperature 320-330 DEG C, three district temperature 320-330 DEG C, four district temperature 310-320 DEG C, head 320-330 DEG C, the time of staying 2 ~ 3min, and pressure is 12-18MPa.
Beneficial effect: the present invention can significantly reduce 1000-4000Hz noise, physical property is excellent simultaneously, and intensity and fire resistance meet the relevant criterion of train, and cost is lower, are conducive to large-scale popularization.
Detailed description of the invention
Embodiment 1
A deadener for bullet train, is made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, and the material of high frequency silencing plate is made up of the component of following parts by weight:
The material of high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 25, low viscosity hydroxy-terminated siloxanes 30, novolac polyol 12, PPG 4, PEPA 5, urea 0.8, benzoyl peroxide 2.5, vinyl-terminated silicone oil 4, OBSH1.5, fume colloidal silica 4, nano-calcium carbonate 3.5, graphite 2.5, water 5.2;
Low frequency silencing plate is made up of the component of following parts by weight: acrylic resin 45, nano silicon 10, titanium dioxide 4, siloxanes 0.01, fluorinated silicone 0.03, magnesia 4, Ludox 3, glass fibre 15, polyphenylene oxide 15, water 3.96.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare above-mentioned high frequency silencing plate material and low frequency silencing plate material according to proportioning, the material outside water outlet is mixed, adds water;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 10 minutes respectively, melt extrude with extruding machine.The process conditions melt extruded are: district's temperature 315 DEG C, two district's temperature 325 DEG C, three district's temperature 320 DEG C, four district's temperature 310 DEG C, head 330 DEG C, and time of staying 2min, pressure is 15MPa.
Embodiment 2
A kind of deadener of bullet train, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, wherein, the material of high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 20, low viscosity hydroxy-terminated siloxanes 35, novolac polyol 5, PPG 3, PEPA 6, urea 0.2, benzoyl peroxide 2, vinyl-terminated silicone oil 5, OBSH1, fume colloidal silica 3, nano-calcium carbonate 3, graphite 2, and weight is the water of above-mentioned material gross weight 0.01 times;
Low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 55, nano silicon 8, glass fibre 15, polyphenylene oxide 10, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.04, magnesia 3, Ludox 3, and weight is the water of above-mentioned material gross weight 0.05 times.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material and low frequency silencing plate material according to said ratio, after being mixed by the material outside water outlet, add water;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 15 minutes respectively, melt extrude with extruding machine.
The described process conditions melt extruded are: district's temperature 320 DEG C, two district's temperature 325 DEG C, three district's temperature 330 DEG C, four district's temperature 310 DEG C, head 315 DEG C, and time of staying 3min, pressure is 16MPa.
Embodiment 3
A kind of deadener of bullet train, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, the material of described high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 30, low viscosity hydroxy-terminated siloxanes 25, novolac polyol 5, PPG 5, PEPA 5, urea 1, benzoyl peroxide 3, vinyl-terminated silicone oil 4, OBSH2, fume colloidal silica 6, nano-calcium carbonate 3, graphite 2, water 9;
Low frequency silencing plate is made up of the component of following parts by weight: acrylic resin 50, nano silicon 10, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.04, magnesia 2, Ludox 3, glass fibre 15, polyphenylene oxide 10, water 4.94.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material and low frequency silencing plate material according to said ratio, by material mixing in addition to water, add water;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 10 minutes respectively, melt extrude with extruding machine.The process conditions melt extruded are: district's temperature 310 DEG C, two district's temperature 325 DEG C, three district's temperature 320 DEG C, four district's temperature 310 DEG C, head 330 DEG C, and time of staying 2min, pressure is 12MPa.
Embodiment 4
A kind of deadener of bullet train, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, wherein, the material of high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 25, low viscosity hydroxy-terminated siloxanes 40, novolac polyol 5, PPG 3, PEPA 8, urea 1.0, benzoyl peroxide 3, vinyl-terminated silicone oil 4, OBSH2, fume colloidal silica 6, nano-calcium carbonate 3, graphite 2, and the water of above-mentioned material gross weight 0.05 times;
Low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 55, nano silicon 12, glass fibre 20, polyphenylene oxide 12, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.04, magnesia 5, Ludox 2, and the water of above-mentioned material gross weight 0.15 times.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material according to claim 1 and low frequency silencing plate material according to proportioning, adding weight after mixing is 0.05-0.15 water doubly;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 10-15 minute respectively, melt extrude with extruding machine.The process conditions melt extruded are: district's temperature 310 DEG C, two district's temperature 330 DEG C, three district's temperature 325 DEG C, four district's temperature 315 DEG C, head 320 DEG C, and time of staying 2.5min, pressure is 13MPa.
Embodiment 5
A kind of deadener of bullet train, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, wherein, the material of high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 35, low viscosity hydroxy-terminated siloxanes 28, novolac polyol 10, PPG 5, PEPA 5, urea 1.2, benzoyl peroxide 3, vinyl-terminated silicone oil 3, OBSH1.5, fume colloidal silica 6, nano-calcium carbonate 4, graphite 2, and total amount is the water of above-mentioned material gross weight 0.15 times;
Low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 55, nano silicon 9, glass fibre 24, polyphenylene oxide 10, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.03, magnesia 2, Ludox 2.5, Yi Jishui.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material according to claim 1 and low frequency silencing plate material according to proportioning, material is in addition to water mixed, adds water;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 12 minutes respectively, melt extrude with extruding machine.The process conditions melt extruded are: district's temperature 310 DEG C, two district's temperature 330 DEG C, three district's temperature 320 DEG C, four district's temperature 315 DEG C, head temperature 325 DEG C, and time of staying 2min, pressure is 16MPa.
Embodiment 6
A kind of deadener of bullet train, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, wherein, the material of high frequency silencing plate is made up of the component of following parts by weight: vinylsiloxane rubber 20, low viscosity hydroxy-terminated siloxanes 36, novolac polyol 6, PPG 5, PEPA 3, urea 0.9, benzoyl peroxide 2.5, vinyl-terminated silicone oil 3, OBSH2, fume colloidal silica 3, nano-calcium carbonate 4, graphite 2, and weight is the water of 0.15 times of above-mentioned material gross weight;
Low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45, nano silicon 8, glass fibre 15, polyphenylene oxide 15, titanium dioxide 3, siloxanes 0.01, fluorinated silicone 0.03, magnesia 2, Ludox 3, and weight is the water of 0.05 times of above-mentioned material total amount.
The preparation method of the deadener of above-mentioned bullet train, comprises the steps:
S1, prepare high frequency silencing plate material according to claim 1 and low frequency silencing plate material according to proportioning, mix, add water;
S2, described high frequency silencing plate material and low frequency silencing plate material are added mixer, mix 10-15 minute respectively, melt extrude with extruding machine.
The described process conditions melt extruded are: district's temperature 315 DEG C, two district's temperature 320 DEG C, three district's temperature 330 DEG C, four district's temperature 315 DEG C, head 325 DEG C, and time of staying 2min, pressure is 18MPa.
The low frequency silencing plate material obtained in above-described embodiment and high frequency silencing plate material are prepared relevant silencing plate respectively, and sticks with adhesive integral, or take shape in respectively on compartment.Above-mentioned material and control group material are applied on compartment by same way, and test, specifically see the following form.(low frequency described herein refers to the noise of 100-1000Hz, and described high frequency refers to the noise of 1000-4000Hz.）
| Acoustic absorptivity | Anti-flammability | Impact 50kgcm | Weatherability | Cost | |
| Contrast | 0.85 | Tested by DIN5510 | Defective | Qualified | 100 |
| 1 | 0.92 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
| 2 | 0.90 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
| 3 | 0.95 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
| 4 | 0.88 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
| 5 | 0.92 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
| 6 | 0.95 | Tested by DIN5510 | Qualified | Qualified | 75-80 |
Table 1
As can be known from the above table: the acoustical absorptivity of the present invention in the frequency domain of 100-4000Hz is better than current material, other performances are better than or suitable with current material, and cost is lower.
The foregoing describe the preferred embodiment of the present invention; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (4)
1. for a deadener for bullet train, it is characterized in that, be made up of high frequency silencing plate, adhesive layer and low frequency silencing plate, wherein, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 20-35, low viscosity hydroxy-terminated siloxanes 25-40, novolac polyol 5-15, PPG 3-5, PEPA 3-8, urea 0.2-1.5, benzoyl peroxide 2-3, vinyl-terminated silicone oil 3-5, OBSH1-2, fume colloidal silica 3-6, nano-calcium carbonate 3-4, graphite 2-3, and water 5.2-13.11;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45-55, nano silicon 8-15, glass fibre 15-25, polyphenylene oxide 10-15, titanium dioxide 3-5, siloxanes 0.01-0.02, fluorinated silicone 0.02-0.05, magnesia 2-5, Ludox 2-3, and water 3.96-4.94.
2., as claimed in claim 1 for the deadener of bullet train, it is characterized in that, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 25-30, low viscosity hydroxy-terminated siloxanes 25-30, novolac polyol 12-13, PPG 4-5, PEPA 5-6, urea 0.8-1, benzoyl peroxide 2.5-3, vinyl-terminated silicone oil 4-5, OBSH 1.5-2, fume colloidal silica 4-6, nano-calcium carbonate 3-3.5, graphite 2-2.5, water 5.2-9;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45-50, nano silicon 8-10, titanium dioxide 4-5, siloxanes 0.01-0.02, fluorinated silicone 0.03-0.04, magnesia 2-4, Ludox 3, glass fibre 15-20, polyphenylene oxide 10-15, water 3.96-4.94.
3., as claimed in claim 1 for the deadener of bullet train, it is characterized in that, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 25, low viscosity hydroxy-terminated siloxanes 30, novolac polyol 12, PPG 4, PEPA 5, urea 0.8, benzoyl peroxide 2.5, vinyl-terminated silicone oil 4, obsh 1.5, fume colloidal silica 4, nano-calcium carbonate 3.5, graphite 2.5, water 5.2;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 45, nano silicon 10, titanium dioxide 4, siloxanes 0.01, fluorinated silicone 0.03, magnesia 4, Ludox 3, glass fibre 15, polyphenylene oxide 15, water 3.96.
4., as claimed in claim 1 for the deadener of bullet train, it is characterized in that, the material of described high frequency silencing plate is made up of the component of following parts by weight:
Vinylsiloxane rubber 30, low viscosity hydroxy-terminated siloxanes 25, novolac polyol 5, PPG 5, PEPA 5, urea 1, benzoyl peroxide 3, vinyl-terminated silicone oil 4, OBSH 2, fume colloidal silica 6, nano-calcium carbonate 3, graphite 2, water 9;
Described low frequency silencing plate is made up of the component of following parts by weight:
Acrylic resin 50, nano silicon 10, titanium dioxide 5, siloxanes 0.02, fluorinated silicone 0.04, magnesia 2, Ludox 3, glass fibre 15, polyphenylene oxide 10, water 4.94.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433127.8A CN103507361B (en) | 2013-09-23 | 2013-09-23 | For the deadener and preparation method thereof of bullet train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433127.8A CN103507361B (en) | 2013-09-23 | 2013-09-23 | For the deadener and preparation method thereof of bullet train |
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| CN103507361A CN103507361A (en) | 2014-01-15 |
| CN103507361B true CN103507361B (en) | 2015-10-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082581A (en) * | 1993-06-26 | 1994-02-23 | 化学工业部海洋涂料研究所 | Multifunctional damping coating layer |
| JP2008213288A (en) * | 2007-03-05 | 2008-09-18 | Takashima & Co Ltd | Bonding method of stainproof sheet and stainproof bonded sheet |
| CN102336167A (en) * | 2010-07-26 | 2012-02-01 | 上海新安汽车隔音毡有限公司 | Multi-layer sound insulation pad for automobile and manufacture method thereof |
| CN103182810A (en) * | 2011-12-28 | 2013-07-03 | 上海新安汽车隔音毡有限公司 | Composite layer type sound and heat insulation pad for engine compartment |
| CN103254391A (en) * | 2012-02-16 | 2013-08-21 | 苏州井上高分子新材料有限公司 | Sound-absorbing polyurethane in vehicles and intermediates thereof |
-
2013
- 2013-09-23 CN CN201310433127.8A patent/CN103507361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082581A (en) * | 1993-06-26 | 1994-02-23 | 化学工业部海洋涂料研究所 | Multifunctional damping coating layer |
| JP2008213288A (en) * | 2007-03-05 | 2008-09-18 | Takashima & Co Ltd | Bonding method of stainproof sheet and stainproof bonded sheet |
| CN102336167A (en) * | 2010-07-26 | 2012-02-01 | 上海新安汽车隔音毡有限公司 | Multi-layer sound insulation pad for automobile and manufacture method thereof |
| CN103182810A (en) * | 2011-12-28 | 2013-07-03 | 上海新安汽车隔音毡有限公司 | Composite layer type sound and heat insulation pad for engine compartment |
| CN103254391A (en) * | 2012-02-16 | 2013-08-21 | 苏州井上高分子新材料有限公司 | Sound-absorbing polyurethane in vehicles and intermediates thereof |
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| Publication number | Publication date |
|---|---|
| CN103507361A (en) | 2014-01-15 |
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