CN104004324A - Fiber damping material used for automobile and preparing method thereof - Google Patents
Fiber damping material used for automobile and preparing method thereof Download PDFInfo
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- CN104004324A CN104004324A CN201410258871.3A CN201410258871A CN104004324A CN 104004324 A CN104004324 A CN 104004324A CN 201410258871 A CN201410258871 A CN 201410258871A CN 104004324 A CN104004324 A CN 104004324A
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Abstract
The invention provides a fiber damping material used for an automobile and a preparing method of the fiber damping material, and belongs to the field of automobile part manufacturing. The problem that an existing reinforced piece is poor in vibration damping performance is solved. The damping material comprises a butyl rubber mixture, epoxy resin, a curing agent and kinds of powder padding, the butyl rubber mixture is good in damping performance, ageing resistance and high-and-low temperature performance, can be well combined with the epoxy resin, and not therefore only can not reduce bending resistance and impact resistance of the fiber damping material, but also can improve damping and noise reduction functions of the damping material. The invention further provides the preparing method of the fiber damping material used for the automobile, the method is simple in technology, the raw materials are easy to get, and not only does the obtained fiber damping material have good bending resistance and impact resistance, but also the vibration damping performance is improved.
Description
Technical field
The invention belongs to auto parts preparation field, be specifically related to a kind of automobile fiber damping material and preparation method thereof.
Background technology
At present, the continuing of global climate warmed, and automobile emission is a large reason that causes global warming and Greenhouse effect.Therefore the exhaust gas emission problem of automobile more and more receives publicity.Alleviate the weight of vehicle body, the average load that reduces automobile has become a kind of method of effective energy-saving and emission-reduction.Fiber damping fin can increase the intensity of steel plate and SMC and not increase its weight, is therefore applied in widely the field such as automobile industry, electric utility.Most fiber damping fin is made up of high molecular polymer, solidifying agent, glasscloth and the interleaving paper with expansion viscosity in the market, can improve bending strength and the shock strength of steel plate.But the intensity that this reinforced gasket increases steel plate is not high, and there is no any effect on shockproof.
Summary of the invention
The object of the invention is in order to solve the poor problem of existing enhancing sheet damping property, and a kind of automobile fiber damping material and preparation method thereof is provided.
First the present invention provides a kind of automobile fiber damping material, and this damping material comprises according to parts by weight meter:
Preferably, described isoprene-isobutylene rubber compound, according to parts by weight meter, comprises
Preferably, the number-average molecular weight of described polyisobutene is 1000-3000.
Preferably, described rubber oil is paraffin oil.
Preferably, described anti-aging agent is amines antioxidants.
Preferably, described epoxy resin is bisphenol A type epoxy resin.
Preferably, described solidifying agent is Dyhard RU 100 or quadrol.
Preferably, the diameter of described glass microballon is 0.2-0.27mm.
Preferably, described polyethylene powder is Low Density Polyethylene powder.
The present invention also provides the preparation method of a kind of automobile fiber damping material, comprising:
Reactor is warming up to 90-110 DEG C, adds epoxy resin, vacuumize 0.7-0.9MPa, open whipping appts, stirring velocity arranges revolution for 15-25 rev/min, stirs 20-40min, then stop stirring, add talcum powder, polyethylene powder and organobentonite, stirring velocity revolution 5-15 rev/min is set, be separated into 100 revs/min, stir 10-20 minute, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set,, rate of dispersion is constant, stirs 20-40min;
In reactor, add isoprene-isobutylene rubber compound, stirring velocity revolution 8-12 rev/min is set, be separated into 100 revs/min, stir 5-10min, open vacuum 0.7-0.9MPa, stir 5-15min;
Reactor temperature is down to 80-90 DEG C, then adds solidifying agent, stirring velocity revolution 10-20 rev/min is set, be separated into 100 revs/min, stir after 5-10min, open vacuum 0.7-0.9MPa, stir 10-20min;
Finally in reactor, add glass microballon, stirring velocity revolution 15-25 rev/min is set, be separated into 100 revs/min, stir 10-20min, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set, is separated into 60 revs/min, after stirring 5-10min, can obtain automobile fiber damping material.
Beneficial effect of the present invention
First the present invention provides a kind of automobile fiber damping material, this damping material comprises isoprene-isobutylene rubber compound, epoxy resin, solidifying agent and all kinds of powder class fillers, isoprene-isobutylene rubber compound of the present invention has good damping capacity, ageing-resistant performance and high temperature performance, simultaneously, described isoprene-isobutylene rubber compound can be good with epoxy resin combination, bending resistance and the shock resistance that not only can not reduce fiber damping material, can also increase the effect of the vibration and noise reducing of damping material; In described damping material, added hollow glass microbead, hollow glass microbead can improve or improve water tolerance, ultimate compression strength, shrinking percentage and the shock strength of material.Therefore fiber damping material provided by the invention is not only significantly improved on bending resistance, also has obvious improvement on damping property, ageing-resistant performance, high and low temperature resistance.
The present invention also provides the preparation method of a kind of automobile fiber damping material, and the method technique is simple, raw material is easy to get, and the fiber damping material obtaining not only has good bending resistance and shock resistance, and damping property is also improved.
Embodiment
First the present invention provides a kind of automobile fiber damping material, and this damping material comprises according to parts by weight meter:
Isoprene-isobutylene rubber compound 20-30 part, epoxy resin 40-50 part, solidifying agent 2-3 part, talcum powder 12-16 part, glass microballon 2-5 part, organobentonite 2-5 part, polyethylene powder 1-2 part; Preferably, isoprene-isobutylene rubber compound 22-28 part, epoxy resin 42-48 part, solidifying agent 2.2-2.8 part, talcum powder 13-15 part, glass microballon 3-4 part, organobentonite 3-4 part, polyethylene powder 1.2-1.8 part.
According to the present invention, described rubber isoprene-isobutylene rubber compound, preferably according to parts by weight meter, comprising:
Isoprene-isobutylene rubber 10-13 part, polyisobutene 2-3 part, rubber oil 15-20 part, carbon black 15-18 part, dicalcium powder 10-15 part, anti-aging agent 0.1-0.3 part, talcum powder 30-35 part, peptizer 0.1-0.3 part, moulds a point agent 0.1-0.3 part.
Of the present invention isoprene-isobutylene rubber is not particularly limited, preferably selects the isoprene-isobutylene rubber virgin rubber that damping capacity is good, the isoprene-isobutylene rubber that preferred product model of the present invention is 1751.
According to the present invention, described polyisobutene is low-molecular-weight polyisobutene, and preference data molecular weight is 1000-3000.
According to the present invention, described rubber oil is preferably the paraffin oil that meets ASTM standard.
According to the present invention, described peptizer is the mixture of high activity metal complex compound oxide catalyst and fatty acid zinc, is a kind of novel efficient and environment-friendly type rubber peptizer.Be preferably the peptizer that product type is AT-S.
According to the present invention, described mould the mixture that point agent is fatty zinc soap and hydro carbons, being preferably product type is point agent of moulding of AT-E-II.
According to the present invention, described anti-aging agent is amine rubber antioxidant, to heat, oxygen, deflect be full of cracks, light, Weather effect and all have better protection effect, is preferably 4,4 ' a pair of a, a`-dimethyl benzyl pentanoic.
According to the present invention, described is not particularly limited carbon black, dicalcium powder and talcum powder, and preferably carbon black, dicalcium powder and talcous particle diameter are 19-16um.
The preparation method of isoprene-isobutylene rubber compound of the present invention, comprising:
Step 1: the isoprene-isobutylene rubber of 10-13 weight part and 0.1-0.3 weight part peptizer are added in Banbury mixer and mixed, react 20-30min at 100-130 DEG C, obtain broken-(down)rubber;
Step 2: 0.1-0.3 weight part anti-aging agent is joined in the broken-(down)rubber that step 1 obtains, at 80-90 DEG C, react in 5-10min, then add 2-3 weight part polyisobutene reaction 5-10min, add again 7-9 weight part carbon black, 5-7 weight part dicalcium powder, 15-17 weight part talcum powder, 0.1-0.3 weight part to mould a point agent, stir 5-8min, add 7-10 parts by weight of rubber oil, reaction 5-10min, obtains size mixture;
Step 3: 8-9 weight part carbon black, 5-8 weight part dicalcium powder, 15-18 weight part talcum powder are added in the size mixture that step 2 obtains, reaction 5-10min, and then adding remaining 8-10 parts by weight of rubber oil, reaction 30-40min, obtains isoprene-isobutylene rubber compound.
Isoprene-isobutylene rubber compound of the present invention is taking isoprene-isobutylene rubber virgin rubber as matrix, add the components such as polyisobutene, rubber oil and powder class filler to mix, isoprene-isobutylene rubber virgin rubber is because there is distinctive molecular structure, and resistance to air loss is good, resistance to ozone, ageing-resistant performance are good, and resistant of high or low temperature is better; Because its in-fighting is larger, in-fighting is again the standard of weighing damping, so isoprene-isobutylene rubber has good damping capacity, owing to having added the dicalcium powder with thermal and insulating performance, makes isoprene-isobutylene rubber compound of the present invention have good heat-proof quality.
According to the present invention, described epoxy resin is preferably bisphenol A type epoxy resin, and more preferably epoxy equivalent (weight) is 400-500 and the epoxy equivalent (weight) mixture at 150-250, most preferably is the mixture of E39-D and E21.Described solidifying agent is preferably Dyhard RU 100 or quadrol, and the diameter of described glass microballon is preferably 0.2-0.27mm; Described polyethylene powder is Low Density Polyethylene powder.
According to the present invention, described is not particularly limited talcum powder, organobentonite.
The present invention also provides the preparation method of a kind of automobile fiber damping material, comprising:
Reactor is warming up to 90-110 DEG C, be preferably 100 DEG C, add epoxy resin, vacuumize 0.7-0.9MPa, open whipping appts, stirring velocity arranges revolution for 15-25 rev/min, be preferably 20 revs/min, stir 20-40min, preferably 30min, then stop stirring, add talcum powder, polyethylene powder and organobentonite, stirring velocity revolution 5-15 rev/min is set, preferably 10 revs/min, be separated into 100 revs/min, stir 10-20 minute, preferably 15min, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set, preferably 15 revs/min, rate of dispersion is constant, stir 20-40min, preferably 30min,
In reactor, add isoprene-isobutylene rubber compound, stirring velocity revolution 8-12 rev/min is set, preferably 10 revs/min, be separated into 100 revs/min, stir 5-10min, open vacuum 0.7-0.9MPa, stir 5-15min, preferably 10min;
Reactor temperature is down to 80-90 DEG C, then adds solidifying agent, stirring velocity revolution 10-20 rev/min is set, be preferably 15 revs/min, be separated into 100 revs/min, stir after 5-10min, open vacuum 0.7-0.9MPa, stir 10-20min, preferably 15min;
Finally in reactor, add glass microballon, stirring velocity revolution 15-25 rev/min is set, preferably 20 revs/min, be separated into 100 revs/min, stir 10-20min, preferably 15min, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set, preferably 15 revs/min, be separated into 60 revs/min, after stirring 5-10min, can obtain automobile fiber damping material.
Moulding press is installed to glasscloth and interleaving paper, fiber damping material obtained above is carried out and compound compressing tablet on moulding press, thickness is 0.8-2.0mm, can obtain fiber damping fin.Described alkali-free glass fiber cloth is taken into account Procuring in advance through resin, and grammes per square metre is at 500-530g/m
2; Interleaving paper is two-sided interleaving paper, and grammes per square metre is at 110-140g/m
2.
Below in conjunction with embodiment, the present invention will be further described in detail
Embodiment 1
Step 1: the isoprene-isobutylene rubber of 10 weight parts 1751 and 0.1 weight part AT-S is added in Banbury mixer and mixed, react 30min at 100 DEG C, obtain broken-(down)rubber;
Step 2: by 0.1 weight part 4,4 ' a pair of a, a`-dimethyl benzyl pentanoic joins in the broken-(down)rubber that step 1 obtains, at 80 DEG C, react in 5min, then add 2 weight part polyisobutene (data molecular weight is 1000) reaction 5min, then add 7 weight part carbon blacks, 5 weight part dicalcium powders, 15 weight part talcum powder, 0.1 weight part AT-E-II, stir 5min, add 7 weight part paraffin oils, reaction 10min, obtains size mixture;
Step 3: 8 weight part carbon blacks, 5 weight part dicalcium powders, 15 weight part talcum powder are added in the size mixture that step 2 obtains, reaction 5min, and then add remaining 8 weight part paraffin oils, reaction 40min, obtains isoprene-isobutylene rubber compound.
Embodiment 2
Step 1: the isoprene-isobutylene rubber of 13 weight parts 1751 and 0.3 weight part AT-S is added in Banbury mixer and mixed, react 20min at 130 DEG C, obtain broken-(down)rubber;
Step 2: by 0.3 weight part 4,4 ' a pair of a, a`-dimethyl benzyl pentanoic joins in the broken-(down)rubber that step 1 obtains, at 90 DEG C, react in 10min, then add 3 weight part polyisobutene (data molecular weight is 3000) reaction 10min, then add 9 weight part carbon blacks, 7 weight part dicalcium powders, 17 weight part talcum powder, 0.3 weight part AT-E-II, stir 8min, add 10 weight part paraffin oils, reaction 10min, obtains size mixture;
Step 3: 9 weight part carbon blacks, 8 weight part dicalcium powders, 18 weight part talcum powder are added in the size mixture that step 2 obtains, reaction 10min, and then add remaining 10 weight part paraffin oils, reaction 30min, obtains isoprene-isobutylene rubber compound.
Embodiment 3
Step 1: the isoprene-isobutylene rubber of 11 weight parts 1751 and 0.15 weight part AT-S is added in Banbury mixer and mixed, react 25min at 125 DEG C, obtain broken-(down)rubber;
Step 2: by 0.15 weight part 4,4 ' a pair of a, a`-dimethyl benzyl pentanoic joins in the broken-(down)rubber that step 1 obtains, at 85 DEG C, react in 7min, then add 2.2 weight part polyisobutene (data molecular weight is 2000) reaction 7min, then add 8 weight part carbon blacks, 6 weight part dicalcium powders, 16 weight part talcum powder, 0.15 weight part AT-E-II, stir 6min, add 8 weight part paraffin oils, reaction 10min, obtains size mixture;
Step 3: 8 weight part carbon blacks, 6 weight part dicalcium powders, 16 weight part talcum powder are added in the size mixture that step 2 obtains, reaction 7min, and then add remaining 8 weight part paraffin oils, reaction 35min, obtains isoprene-isobutylene rubber compound.
Embodiment 4
Reactor is warming up to 90 DEG C, add the E39-D of 30 weight parts, the E21 of 10 weight parts, vacuumize 0.7MPa, open whipping appts, it is 15 revs/min that stirring velocity arranges revolution, stirs 20min, then stops stirring, add talcum powder, the Low Density Polyethylene powder of 1 weight part and the organobentonite of 2 weight parts of 12 weight parts, 5 revs/min of stirring velocity revolution are set, are separated into 100 revs/min, stir 10min, open vacuum 0.7MPa, 10 revs/min of stirring velocity revolution are set, and rate of dispersion is constant, stirs 20min;
In reactor, add the isoprene-isobutylene rubber compound of 20 weight parts that embodiment 1 obtains, 8 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 5min, open vacuum 0.7MPa, stir 5min;
Reactor temperature is down to 80 DEG C, then adds the Dyhard RU 100 of 2 weight parts, 10 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir after 5min, open vacuum 0.7MPa, stir 10min;
The last glass microballon (diameter of glass microballon is 0.2mm) that adds 2 weight parts in reactor, 15 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 10min, open vacuum 0.7MPa, 10 revs/min of stirring velocity revolution are set, are separated into 60 revs/min, after stirring 5min, can obtain automobile fiber damping material.
Moulding press is installed to glasscloth and interleaving paper, fiber damping material obtained above is carried out and compound compressing tablet on moulding press, thickness is 0.8-2.0mm, can obtain fiber damping fin.The performance test results of the fiber damping fin that embodiment 1 obtains is as shown in table 1.
Embodiment 5
Reactor is warming up to 110 DEG C, add the E39-D of 35 weight parts, the E21 of 15 weight parts, vacuumize 0.9MPa, open whipping appts, it is 25 revs/min that stirring velocity arranges revolution, stirs 40min, then stops stirring, add talcum powder, the Low Density Polyethylene powder of 2 weight parts and the organobentonite of 5 weight parts of 16 weight parts, 15 revs/min of stirring velocity revolution are set, are separated into 100 revs/min, stir 20min, open vacuum 0.9MPa, 20 revs/min of stirring velocity revolution are set, and rate of dispersion is constant, stirs 40min;
In reactor, add the isoprene-isobutylene rubber compound of 30 weight parts that embodiment 2 obtains, 12 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 10min, open vacuum 0.9MPa, stir 15min;
Reactor temperature is down to 90 DEG C, then adds the quadrol of 3 weight parts, 20 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir after 10min, open vacuum 0.9MPa, stir 20min;
The last glass microballon (diameter of glass microballon is 0.27mm) that adds 5 weight parts in reactor, 25 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 20min, open vacuum 0.9MPa, 20 revs/min of stirring velocity revolution are set, are separated into 60 revs/min, after stirring 10min, can obtain automobile fiber damping material.
Moulding press is installed to glasscloth and interleaving paper, fiber damping material obtained above is carried out and compound compressing tablet on moulding press, thickness is 0.8-2.0mm, can obtain fiber damping fin.The performance test results of the fiber damping fin that embodiment 2 obtains is as shown in table 1.
Embodiment 6
Reactor is warming up to 100 DEG C, add the E39-D of 30 weight parts, the E21 of 15 weight parts, vacuumize 0.9MPa, open whipping appts, it is 20 revs/min that stirring velocity arranges revolution, stirs 30min, then stops stirring, add talcum powder, the Low Density Polyethylene powder of 1.5 weight parts and the organobentonite of 3 weight parts of 14 weight parts, 10 revs/min of stirring velocity revolution are set, are separated into 100 revs/min, stir 15min, open vacuum 0.9MPa, 15 revs/min of stirring velocity revolution are set, and rate of dispersion is constant, stirs 30min;
In reactor, add the isoprene-isobutylene rubber compound of 25 weight parts that embodiment 3 obtains, 10 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 10min, open vacuum 0.9MPa, stir 10min;
Reactor temperature is down to 85 DEG C, then adds the quadrol of 2.5 weight parts, 15 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir after 10min, open vacuum 0.9MPa, stir 15min;
The last glass microballon (diameter of glass microballon is 0.24mm) that adds 3 weight parts in reactor, 20 revs/min of stirring velocity revolution are set, be separated into 100 revs/min, stir 15min, open vacuum 0.9MPa, 15 revs/min of stirring velocity revolution are set, are separated into 60 revs/min, after stirring 10min, can obtain automobile fiber damping material.
Moulding press is installed to glasscloth and interleaving paper, fiber damping material obtained above is carried out and compound compressing tablet on moulding press, thickness is 0.8-2.0mm, can obtain fiber damping fin.The performance test results of the fiber damping fin that embodiment 3 obtains is as shown in table 1.
Table 1
The explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an automobile fiber damping material, is characterized in that, this damping material comprises according to parts by weight meter:
2. a kind of automobile fiber damping material according to claim 1, is characterized in that, described isoprene-isobutylene rubber compound, according to parts by weight meter, comprises
3. a kind of automobile fiber damping material according to claim 2, is characterized in that, the number-average molecular weight of described polyisobutene is 1000-3000.
4. a kind of automobile fiber damping material according to claim 2, is characterized in that, described rubber oil is paraffin oil.
5. a kind of automobile fiber damping material according to claim 2, is characterized in that, described anti-aging agent is amines antioxidants.
6. a kind of automobile fiber damping material according to claim 1, is characterized in that, described epoxy resin is bisphenol A type epoxy resin.
7. a kind of automobile fiber damping material according to claim 1, is characterized in that, described solidifying agent is Dyhard RU 100 or quadrol.
8. a kind of automobile fiber damping material according to claim 1, is characterized in that, the diameter of described glass microballon is 0.2-0.27mm.
9. a kind of automobile fiber damping material according to claim 1, is characterized in that, described polyethylene powder is Low Density Polyethylene powder.
10. a preparation method for fiber damping material for automobile, is characterized in that, comprising:
Reactor is warming up to 90-110 DEG C, adds epoxy resin, vacuumize 0.7-0.9MPa, open whipping appts, stirring velocity arranges revolution for 15-25 rev/min, stirs 20-40min, then stop stirring, add talcum powder, polyethylene powder and organobentonite, stirring velocity revolution 5-15 rev/min is set, be separated into 100 revs/min, stir 10-20 minute, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set,, rate of dispersion is constant, stirs 20-40min;
In reactor, add isoprene-isobutylene rubber compound, stirring velocity revolution 8-12 rev/min is set, be separated into 100 revs/min, stir 5-10min, open vacuum 0.7-0.9MPa, stir 5-15min;
Reactor temperature is down to 80-90 DEG C, then adds solidifying agent, stirring velocity revolution 10-20 rev/min is set, be separated into 100 revs/min, stir after 5-10min, open vacuum 0.7-0.9MPa, stir 10-20min;
Finally in reactor, add glass microballon, stirring velocity revolution 15-25 rev/min is set, be separated into 100 revs/min, stir 10-20min, open vacuum 0.7-0.9MPa, stirring velocity revolution 10-20 rev/min is set, is separated into 60 revs/min, after stirring 5-10min, can obtain automobile fiber damping material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104629197A (en) * | 2015-02-11 | 2015-05-20 | 朝阳华兴万达轮胎有限公司 | Butyl rubber inner tube with addition of appearance improving agent |
| CN104945848A (en) * | 2015-06-25 | 2015-09-30 | 安徽志诚机电零部件有限公司 | Damping mat |
| CN108752930A (en) * | 2018-05-21 | 2018-11-06 | 合肥仁德电子科技有限公司 | A kind of use for electronic products high damping material and preparation method thereof |
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| JP2008030257A (en) * | 2006-07-27 | 2008-02-14 | Nippon Tokushu Toryo Co Ltd | Damping capacity applying type steel sheet reinforcing material |
| CN101486326A (en) * | 2008-01-17 | 2009-07-22 | 盐城市宝光车用材料有限公司 | Double-layer shock-absorbing damping plate for automobile and production method thereof |
| CN101654561A (en) * | 2008-08-22 | 2010-02-24 | 株洲时代新材料科技股份有限公司 | Modified asphalt hot-melt damping material for vehicles and preparation method and construction method thereof |
| CN103087663A (en) * | 2011-10-31 | 2013-05-08 | 比亚迪股份有限公司 | Reinforcing film matrix composition and its preparation method, reinforcing film and steel plate composite material |
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| JP2008030257A (en) * | 2006-07-27 | 2008-02-14 | Nippon Tokushu Toryo Co Ltd | Damping capacity applying type steel sheet reinforcing material |
| CN101486326A (en) * | 2008-01-17 | 2009-07-22 | 盐城市宝光车用材料有限公司 | Double-layer shock-absorbing damping plate for automobile and production method thereof |
| CN101654561A (en) * | 2008-08-22 | 2010-02-24 | 株洲时代新材料科技股份有限公司 | Modified asphalt hot-melt damping material for vehicles and preparation method and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104629197A (en) * | 2015-02-11 | 2015-05-20 | 朝阳华兴万达轮胎有限公司 | Butyl rubber inner tube with addition of appearance improving agent |
| CN104945848A (en) * | 2015-06-25 | 2015-09-30 | 安徽志诚机电零部件有限公司 | Damping mat |
| CN108752930A (en) * | 2018-05-21 | 2018-11-06 | 合肥仁德电子科技有限公司 | A kind of use for electronic products high damping material and preparation method thereof |
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|---|---|
| CN104004324B (en) | 2016-04-20 |
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