CN107226941A - A kind of railroad track composite rubber mat plate - Google Patents
A kind of railroad track composite rubber mat plate Download PDFInfo
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- CN107226941A CN107226941A CN201710510704.7A CN201710510704A CN107226941A CN 107226941 A CN107226941 A CN 107226941A CN 201710510704 A CN201710510704 A CN 201710510704A CN 107226941 A CN107226941 A CN 107226941A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention belongs to technical field of rubber material, and in particular to a kind of railroad track composite rubber mat plate.Nano silicon is made by teos hydrolysis in the present invention, and it is surface-treated by silane coupler, it is made after modified manometer silicon dioxide and mixes scattered with absolute ethyl alcohol, obtain modified manometer silicon dioxide dispersion liquid, again with being dried after short glass fiber hybrid infusion, short glass fiber must be modified, then natural rubber, butadiene-styrene rubber etc. are kneaded, add modified short glass fiber and ceramic powder mixing, it is eventually adding accelerator and sulphur mixing after cure, shaping, you can obtain railroad track composite rubber mat plate.Rubber mat plate produced by the present invention has excellent creep-resistant property and good mechanical property, strengthening action is played instead of carbon black using glass fibre and ceramic powder simultaneously, the resistance value of finished product rubber mat plate is effectively increased, is a kind of preferable track rubber damping material.
Description
Technical field
The invention belongs to technical field of rubber material, and in particular to a kind of railroad track composite rubber mat plate.
Background technology
Railroad track rubber mat plate, is the resilient sleeper-bearing between rail and concrete tie or underground, it is mainly made
With being that rail and sleeper are flexibly combined, isolation vehicle is by caused vibration and impact, while being carried out to signal exhausted
Edge.Railroad track rubber mat plate is placed in the use of pillow bottom, it is necessary to bear the active force of train locomotive wheel, and continuous now with railway
Speed-raising, it is desirable to which rubber mat plate will be improved from material selection and structure, to adapt to the high-speed cruising of vehicle, and because of rubber
Backing plate need it is long-term it is outdoor uses, therefore do not require nothing more than rubber mat plate there is excellent endurance of cutting energy, good electrical insulation capability
And shock-absorbing performance, and should have good cold-resistant, moisture resistance and weather-resistant performance.
Production rubber mat plate is typically chosen butadiene-styrene rubber or ethylene propylene diene rubber as material of main part at present, with reinforcing agent
（Carbon black）, vulcanizing agent, the mixing vulcanization of the auxiliary agent such as age resistor be made.Though such rubber mat plate is old with excellent heat-resisting and weatherability
Change performance, but there is also certain defect, mainly obtained rubber mat plate creep-resistant property is poor, is also easy to produce segmentation crack, and existing
Have in rubber mat plate production process and use carbon black as reinforcing agent, be easily caused the reduction of finished product rubber mat plate resistance, influence product is exhausted
Edge performance.
Therefore, how to overcome prior art not enough, a kind of creep-resistant property of research is good, resistance is big, the rubber of excellent performance
Backing plate, as technical problem urgently to be resolved hurrily in the industry.
The content of the invention
Present invention mainly solves technical problem：There is creep-resistant property for existing rubber mat plate poor, be also easy to produce tortoise
Carbon black is used in crackle, and production process as reinforcing agent, being easily caused the defect of rubber mat plate resistance reduction, there is provided a kind of iron
Rail road composite rubber mat plate.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of railroad track composite rubber mat plate, is made up of the raw material of following parts by weight：20~40 parts of natural rubber, butylbenzene
60~80 parts of rubber, modified 20~50 parts of short glass fiber, 10~30 parts of ceramic powder, 2~4 parts of stearic acid, Petropols
10~15 parts, 2~4 parts of age resistor, 2~3 parts of accelerator, 1~3 part of sulphur, 4~6 parts of coupling agent；
The described specific method of modifying of modification short glass fiber is as follows：Count by weight, by 20~40 parts of tetraethyl orthosilicates,
20~40 parts of silane coupler KH-560 and 80~100 parts of ethanol solution hybrid reactions, through being filtered, washed and dried drying, obtain modification
Nano silicon, then by gained modified manometer silicon dioxide and absolute ethyl alcohol be 1 in mass ratio：60~1：80 mixing ultrasounds point
Dissipate, obtain modified manometer silicon dioxide dispersion liquid, be in mass ratio with modified manometer silicon dioxide dispersion liquid by short glass fiber
1：20~1：40 hybrid infusions, then the short glass fiber drying after dipping is obtained into modified short glass fiber to constant weight；
Specific preparation process is as follows：
（1）Natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and coupling are sequentially added in two-roll mill
Agent, after being well mixed, adds modified short glass fiber and ceramic powder, continues to knead 3~5min；
（2）Treat that above-mentioned mixing terminates, then accelerator and sulphur are added into two-roll mill, continue to knead 2~4min, obtain glue
Piece；
（3）Above-mentioned gained film is placed in mould, sulfidization molding repaiies packaging and storage after deburring, produces railroad track and be combined
Rubber mat plate.
Described ceramic powder composition and parts by weight content be：30~50 parts of Al2O3, 20~30 parts of SiO2, 6~8 parts
ZrO2, 4~6 parts of SiC, 3~5 parts of B2O3。
Described Petropols are one kind in C5 Petropols or C9 Petropols.
Described age resistor is one kind in anti-aging agent RD, antioxidant 4010 or age resistor 124.
Described accelerator is one kind in altax, Vulcanization accelerator TMTD or accelerant N A-22.
During described coupling agent is silane resin acceptor kh-550, silane coupler KH-560 or Silane coupling reagent KH-570
It is a kind of.
Described ethanol solution mass fraction is 40~60%.
Step（1）Described compounding conditions are：Melting temperature is 50~55 DEG C.
Step（3）Described conditions of vulcanization is：Curing temperature is 158~168 DEG C, and cure time is 30~40min, vulcanization
Pressure is 35~40MPa.
The beneficial effects of the invention are as follows：
（1）The present invention is surface-treated using silane coupler to nano silicon, to reduce nano-silica surface
Can, be conducive to nano silicon in the effective scattered adsorption of fiberglass surfacing, so that the roughness of fiberglass surfacing is improved,
The mechanical snap intensity of reinforcing glass fiber and base rubber material, organically combines both, so as to improve product creep resistance
Can, it is prevented effectively from product and produces cracking in use, and uses glass fibre and ceramic powder substitution conventional carbon black, it is to avoid
Carbon black makes the problem of product resistance is reduced after adding；
（2）Technical solution of the present invention strict control charging sequence in mixing process, make the addition of coupling agent in ceramic powder and
Before the inorganic fillers such as modified glass-fiber are added, because coupling agent is small-molecule substance, coupling agent is first added, inorganic fill out is added afterwards
Material, is conducive to coupling agent Quick uniform in rubber matrix to disperse, so that coupling agent is diffused into the probability of inorganic filler surface
Increase, significantly improves dispersiveness of the inorganic filler in rubber matrix, creep-resistant property, tensile property of product etc. is effectively carried
It is high；
（3）The present invention is made ceramic powder be dispersed in rubber matrix, is passed through ceramic powder using the peptizaiton of coupling agent
Addition, ultraviolet light can be effectively shielded in use, so as to improve the weatherability of product, product service life is effectively prolonged
It is long, product damping noise reduction is fully realized, the effect of wheel track stress is buffered.
Embodiment
Count by weight first, 20~40 parts of silane coupler KH-560,80~100 parts are sequentially added in a kettle.
Mass fraction be 40~60% ethanol solutions and 20~40 parts of tetraethyl orthosilicates, in temperature be 45~55 DEG C, rotating speed be 600~
Under the conditions of 800r/min, constant temperature 2~4h of stirring reaction, question response terminates, by material filtering in reactor, collects filter cake, is used in combination
Absolute ethyl alcohol washing gained filter cake 3~5 times, the filter cake after washing is transferred in baking oven, under the conditions of temperature is 105~110 DEG C
Dry to constant weight, obtain modified manometer silicon dioxide, then be 1 in mass ratio：60~1：80, by gained modified manometer silicon dioxide with
Absolute ethyl alcohol is mixed, and under the conditions of supersonic frequency is 40~45kHz, 30~45min of ultrasonic disperse obtains modified manometer silicon dioxide
Dispersion liquid, is then 1 in mass ratio：20~1：40, short glass fiber is mixed with modified manometer silicon dioxide dispersion liquid, in
Temperature is 6~8h of dipping under the conditions of 45~55 DEG C, then the short glass fiber after dipping is taken out, and is placed in vacuum drying chamber
In, dried under the conditions of temperature is 105~110 DEG C to constant weight, obtain modified short glass fiber, then count by weight, according to
It is secondary to take 20~40 parts of natural rubbers, 60~80 parts of butadiene-styrene rubber, 20~50 parts of modified short glass fibers, 10~30 parts of ceramic powders
Body, 2~4 parts of stearic acid, 10~15 parts of Petropols, 2~4 parts of age resistor, 2~3 parts of accelerator, 1~3 part of sulphur, 4~6 parts
Coupling agent, then sequentially adds natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and idol in two-roll mill
Join agent, in after 2~4min of mixing under the conditions of temperature is 50~55 DEG C, add modified short glass fiber and ceramic powder, continue
Knead after 3~5min, add accelerator and sulphur, continue to knead 2~4min, obtain film, gained film is transferred in mould,
It it is 158~168 DEG C in temperature, pressure is under the conditions of 35~40MPa, 30~40min of vulcanization then repaiies deburring, then packaged
Storage, produces railroad track composite rubber mat plate.Wherein described ceramic powder composition and parts by weight content be：30~50 parts
Al2O3, 20~30 parts of SiO2, 6~8 parts of ZrO2, 4~6 parts of SiC, 3~5 parts of B2O3.Wherein described Petropols are C5 oil trees
One kind in fat or C9 Petropols.Wherein described age resistor is one in anti-aging agent RD, antioxidant 4010 or age resistor 124
Kind.Wherein described accelerator is one kind in altax, Vulcanization accelerator TMTD or accelerant N A-22.Wherein described coupling
Agent is silane resin acceptor kh-550, one kind in silane coupler KH-560 or Silane coupling reagent KH-570.
Example 1
Count by weight first, 20 parts of silane coupler KH-560 are sequentially added in a kettle., 80 parts of mass fractions are 40%
Ethanol solution and 20 parts of tetraethyl orthosilicates, are 45 DEG C in temperature, rotating speed is under the conditions of 600r/min, constant temperature stirring reaction 2h treats
Reaction terminates, by material filtering in reactor, collects filter cake, and filter cake obtained by wash with absolute ethyl alcohol 3 times, by the filter after washing
Cake is transferred in baking oven, is dried under the conditions of temperature is 105 DEG C to constant weight, obtains modified manometer silicon dioxide, then is 1 in mass ratio：
60, gained modified manometer silicon dioxide is mixed with absolute ethyl alcohol, under the conditions of supersonic frequency is 40kHz, ultrasonic disperse
30min, obtains modified manometer silicon dioxide dispersion liquid, is then 1 in mass ratio：20, by short glass fiber and modified Nano two
Silica dispersion liquid is mixed, and 6h is impregnated under the conditions of temperature is 45 DEG C, then the short glass fiber after dipping is taken out, and is placed in
In vacuum drying chamber, dried under the conditions of temperature is 105 DEG C to constant weight, obtain modified short glass fiber, then by weight
Meter, takes 20 parts of natural rubbers, 60 parts of butadiene-styrene rubber, 20 parts of modified short glass fibers, 10 parts of ceramic powders, 2 parts of tristearin successively
Acid, 10 parts of Petropols, 2 parts of anti-aging agent RDs, 2 parts of altaxs, 1 part of sulphur, 4 parts of coupling agents, then in two-roll mill
Sequentially add natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and silane resin acceptor kh-550, in temperature be 50
Kneaded under the conditions of DEG C after 2min, add modified short glass fiber and ceramic powder, continued to knead after 3min, add accelerator
And sulphur, continue to knead 2min, obtain film, gained film is transferred in mould, be 158 DEG C in temperature, pressure is 35MPa conditions
Under, vulcanize 30min, then repair deburring, then packaged storage, produce railroad track composite rubber mat plate.Described ceramic powder
Body composition and parts by weight content are：30 parts of Al2O3, 20 parts of SiO2, 6 parts of ZrO2, 4 parts of SiC, 3 parts of B2O3。
Example 2
Count by weight first, 30 parts of silane coupler KH-560 are sequentially added in a kettle., 90 parts of mass fractions are 50%
Ethanol solution and 30 parts of tetraethyl orthosilicates, are 50 DEG C in temperature, rotating speed is under the conditions of 700r/min, constant temperature stirring reaction 3h treats
Reaction terminates, by material filtering in reactor, collects filter cake, and filter cake obtained by wash with absolute ethyl alcohol 4 times, by the filter after washing
Cake is transferred in baking oven, is dried under the conditions of temperature is 108 DEG C to constant weight, obtains modified manometer silicon dioxide, then is 1 in mass ratio：
70, gained modified manometer silicon dioxide is mixed with absolute ethyl alcohol, under the conditions of supersonic frequency is 43kHz, ultrasonic disperse
38min, obtains modified manometer silicon dioxide dispersion liquid, is then 1 in mass ratio：30, by short glass fiber and modified Nano two
Silica dispersion liquid is mixed, and 7h is impregnated under the conditions of temperature is 50 DEG C, then the short glass fiber after dipping is taken out, and is placed in
In vacuum drying chamber, dried under the conditions of temperature is 108 DEG C to constant weight, obtain modified short glass fiber, then by weight
Meter, takes 30 parts of natural rubbers, 70 parts of butadiene-styrene rubber, 35 parts of modified short glass fibers, 20 parts of ceramic powders, 3 parts of tristearin successively
Acid, 13 parts of Petropols, 3 parts of antioxidant 4010s, 2 parts of Vulcanization accelerator TMTDs, 2 parts of sulphur, 5 parts of coupling agents, then in double roller mill
Natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and silane coupler KH-560 are sequentially added in machine, in temperature
To be kneaded under the conditions of 53 DEG C after 3min, modified short glass fiber and ceramic powder are added, continues to knead after 4min, adds rush
Enter agent and sulphur, continue to knead 3min, obtain film, gained film is transferred in mould, be 163 DEG C in temperature, pressure is 38MPa
Under the conditions of, vulcanize 35min, then repair deburring, then packaged storage, produce railroad track composite rubber mat plate.Described pottery
Porcelain powder constituents and parts by weight content are：40 parts of Al2O3, 25 parts of SiO2, 7 parts of ZrO2, 5 parts of SiC, 4 parts of B2O3。
Example 3
Count by weight first, 40 parts of silane coupler KH-560 are sequentially added in a kettle., 100 parts of mass fractions are
60% ethanol solution and 40 parts of tetraethyl orthosilicates, in temperature be 55 DEG C, rotating speed be 800r/min under the conditions of, constant temperature stirring reaction 4h,
Question response terminates, by material filtering in reactor, collects filter cake, and filter cake obtained by wash with absolute ethyl alcohol 5 times, after washing
Filter cake is transferred in baking oven, is dried under the conditions of temperature is 110 DEG C to constant weight, is obtained modified manometer silicon dioxide, then be in mass ratio
1：80, gained modified manometer silicon dioxide is mixed with absolute ethyl alcohol, under the conditions of supersonic frequency is 45kHz, ultrasonic disperse
45min, obtains modified manometer silicon dioxide dispersion liquid, is then 1 in mass ratio：40, by short glass fiber and modified Nano two
Silica dispersion liquid is mixed, and 8h is impregnated under the conditions of temperature is 55 DEG C, then the short glass fiber after dipping is taken out, and is placed in
In vacuum drying chamber, dried under the conditions of temperature is 110 DEG C to constant weight, obtain modified short glass fiber, then by weight
Meter, takes 40 parts of natural rubbers, 80 parts of butadiene-styrene rubber, 50 parts of modified short glass fibers, 30 parts of ceramic powders, 4 parts of tristearin successively
Acid, 15 parts of Petropols, 4 parts of age resistor, 124,3 parts of accelerant N A-22,3 parts of sulphur, 6 parts of Silane coupling reagent KH-570s, then
Natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and coupling agent are sequentially added in two-roll mill, in temperature
To be kneaded under the conditions of 55 DEG C after 4min, modified short glass fiber and ceramic powder are added, continues to knead after 5min, adds rush
Enter agent and sulphur, continue to knead 4min, obtain film, gained film is transferred in mould, be 168 DEG C in temperature, pressure is 40MPa
Under the conditions of, vulcanize 40min, then repair deburring, then packaged storage, produce railroad track composite rubber mat plate.Described pottery
Porcelain powder constituents and parts by weight content are：50 parts of Al2O3, 30 parts of SiO2, 8 parts of ZrO2, 6 parts of SiC, 5 parts of B2O3。
Comparative example：The rail special (purpose) rubber backing plate of Nanjing rubber company production.
To railroad track composite rubber mat plate made from example 1~3 and the rail special (purpose) rubber backing plate progressive of comparative example
It can detect, its testing result is as shown in table 1：
Table 1
| Detection project | Example 1 | Example 2 | Example 3 | Comparative example | The method of inspection |
| Hardness（Shao Er A） | 75 | 76 | 78 | 75 | GB/T 531 |
| Tensile strength（MPa） | 17.3 | 18.2 | 19.4 | 16.4 | GB/T 528 |
| Akron abrasion（cm3/1.61km） | 0.49 | 0.47 | 0.43 | 0.55 | GB/T 1689 |
| Static stiffness（kN/mm） | 78 | 80 | 81 | 75 | TB/T 2626 |
| Operating resistance（Ω） | 3.1×1010 | 3.7×1010 | 4.2×1010 | 1.9×1010 | The Appendix B of TB/T 2626 |
| Compression set（Compression ratio 50%, 100 DEG C × 24h）/% | 20 | 18 | 15 | 23 | GB/T 7759.2 |
In summary, railroad track composite rubber mat plate produced by the present invention effectively increases rubber mat plate creep-resistant property, subtracts
The percussion of train, reduction track vibration and noise are delayed, while being played using glass fibre and ceramic powder instead of carbon black
Strengthening action, effectively increases the resistance value of finished product rubber mat plate, extends service life.
Claims (9)
1. a kind of railroad track composite rubber mat plate, it is characterised in that：It is made up of the raw material of following parts by weight：Natural rubber
20~40 parts, 60~80 parts of butadiene-styrene rubber, modified 20~50 parts of short glass fiber, 10~30 parts of ceramic powder, stearic acid 2~
4 parts, 10~15 parts of Petropols, 2~4 parts of age resistor, 2~3 parts of accelerator, 1~3 part of sulphur, 4~6 parts of coupling agent；
The described specific method of modifying of modification short glass fiber is as follows：Count by weight, by 20~40 parts of tetraethyl orthosilicates,
20~40 parts of silane coupler KH-560 and 80~100 parts of ethanol solution hybrid reactions, through being filtered, washed and dried drying, obtain modification
Nano silicon, then by gained modified manometer silicon dioxide and absolute ethyl alcohol be 1 in mass ratio：60~1：80 mixing ultrasounds point
Dissipate, obtain modified manometer silicon dioxide dispersion liquid, be in mass ratio with modified manometer silicon dioxide dispersion liquid by short glass fiber
1：20~1：40 hybrid infusions, then the short glass fiber drying after dipping is obtained into modified short glass fiber to constant weight；
The described specific preparation process of railroad track composite rubber mat plate is as follows：
（1）Natural rubber, butadiene-styrene rubber, stearic acid, Petropols, age resistor and coupling are sequentially added in two-roll mill
Agent, after being well mixed, adds modified short glass fiber and ceramic powder, continues to knead 3~5min；
（2）Treat that above-mentioned mixing terminates, then accelerator and sulphur are added into two-roll mill, continue to knead 2~4min, obtain glue
Piece；
（3）Above-mentioned gained film is placed in mould, sulfidization molding repaiies packaging and storage after deburring, produces railroad track and be combined
Rubber mat plate.
2. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described ceramic powder into
Divide and parts by weight content is：30~50 parts of Al2O3, 20~30 parts of SiO2, 6~8 parts of ZrO2, 4~6 parts of SiC, 3~5 parts of B2O3。
3. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described Petropols are
One kind in C5 Petropols or C9 Petropols.
4. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described age resistor is anti-
One kind in old agent RD, antioxidant 4010 or age resistor 124.
5. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described accelerator is rush
Enter agent DM, one kind in Vulcanization accelerator TMTD or accelerant N A-22.
6. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described coupling agent is silicon
One kind in alkane coupling agent KH-550, silane coupler KH-560 or Silane coupling reagent KH-570.
7. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Described ethanol solution matter
It is 40~60% to measure fraction.
8. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Step（1）Described is mixed
Refining condition is：Melting temperature is 50~55 DEG C.
9. a kind of railroad track composite rubber mat plate according to claim 1, it is characterised in that：Step（3）Described sulphur
Change condition is：Curing temperature is 158~168 DEG C, and cure time is 30~40min, and sulfide stress is 35~40MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710510704.7A CN107226941A (en) | 2017-06-28 | 2017-06-28 | A kind of railroad track composite rubber mat plate |
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| CN201710510704.7A CN107226941A (en) | 2017-06-28 | 2017-06-28 | A kind of railroad track composite rubber mat plate |
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| CN112694651A (en) * | 2021-01-05 | 2021-04-23 | 宁波杰尼斯高分子科技有限公司 | High-elasticity corrosion-resistant styrene butadiene rubber composite material and preparation method thereof |
| CN116462894A (en) * | 2023-05-26 | 2023-07-21 | 西南交通大学 | Super-performance rubber backing plate material for track, preparation method and backing plate structure |
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| CN110053126A (en) * | 2019-03-11 | 2019-07-26 | 常州瑞坦商贸有限公司 | A kind of preparation method of composite waterproof artificial board of straw |
| CN112694651A (en) * | 2021-01-05 | 2021-04-23 | 宁波杰尼斯高分子科技有限公司 | High-elasticity corrosion-resistant styrene butadiene rubber composite material and preparation method thereof |
| CN116462894A (en) * | 2023-05-26 | 2023-07-21 | 西南交通大学 | Super-performance rubber backing plate material for track, preparation method and backing plate structure |
| CN116462894B (en) * | 2023-05-26 | 2024-03-12 | 西南交通大学 | Super-performance rubber backing plate material for track, preparation method and backing plate structure |
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Application publication date: 20171003 |