CN102040823A - Damping rubber - Google Patents
Damping rubber Download PDFInfo
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- CN102040823A CN102040823A CN2009101976320A CN200910197632A CN102040823A CN 102040823 A CN102040823 A CN 102040823A CN 2009101976320 A CN2009101976320 A CN 2009101976320A CN 200910197632 A CN200910197632 A CN 200910197632A CN 102040823 A CN102040823 A CN 102040823A
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- rubber
- polyethers
- damping rubber
- urethanes
- damping
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Abstract
The invention relates to damping rubber which is characterized in that the main material of the damping rubber comprises the main ingredients of polyether polyurethane rubber and polyester polyurethane rubber, and the mass ratio of the polyether polyurethane rubber to the polyester polyurethane rubber is (60-80):(40-20); the damping rubber also comprises polynorbornene rubber, and the mass of polynorbornene rubber is 10-15% of the total mass of the polyether polyurethane rubber and the polyester polyurethane rubber. The damping rubber of the invention solves the problems of low specific strength, small stressed deformation quantity, low restoring speed and great permanent deformation quantity of the traditional rubber spring.
Description
Technical field
The present invention relates to the rubber item industry in the chemical engineering industry field, specifically, relate to and a kind ofly have high specific strength, elastomeric magnetic suspension train Y to the rubber spring rubber combination.
Background technology
Magnetic suspension train Y is the rubber damping spare that uses in a kind of train to rubber spring.Damping material is to change the solid mechanical vibrational energy into heat energy and the material that dissipates, is mainly used in vibration and noise control.Magnetic suspension train is when operation, owing to reasons such as engine operation and aerodynamic noises, can cause serious broadband random vibration and noise circumstance, also can the numerous resonance peak of excitation structure and electronic control equipment system, make structure fatigue failure and dynamic buckling occur, the electronic control equipment precision is reduced so that break down.In order to improve the damping capacity of structure, structured material and damping material can be combined into matrix material, promptly meet with stresses by structured material, damping material produces damping action, to reach the purpose of control vibration and reduction noise.Magnetic suspension train to rubber spring a kind of stress that had both needed to bear certain intensity that comes to this, needs the accessory of damping capacity with Y again.
Elastomeric material has multiple performances such as damping, sound insulation, buffering.Along with high-speed maglev train speed, driving safety and stability further improve, train is had higher requirement with rubber damping spare.Magnetic suspension train requires under the identical pressurized situation of damping piece bigger deflection is arranged; Better elasticity is arranged, and then improve the damping effect of damping piece.
Summary of the invention
The purpose of this invention is to provide a kind of magnetic suspension train Y to rubber spring damping rubber composition.This composition becomes magnetic suspension train Y to rubber spring through suitable means molding sulfuration post-treatment, has solved the problem that existing rubber spring specific tenacity is low, the compressive deformation amount is little, recovery speed is slow, set deformation volume is big.
A kind of damping rubber of the present invention, the major ingredient of its material of main part is polyethers urethanes and polyester urethanes, the polyethers urethanes is 60～80: 40～20 with the ratio of the quality of polyester urethanes, also comprise poly-norbornene rubber, its quality be polyethers urethanes and polyester urethanes the quality summation 10～15%.
As optimized technical scheme:
Wherein, aforesaid a kind of damping rubber, described polyethers polyurethane component is polytetrahydrofuran/TDI.
Aforesaid a kind of damping rubber, described damping rubber also comprises complex compound, calcium stearate, high abrasion oven process carbon black and the coumarone indene resin of Sulfur, altax, captax, zinc chloride-captax, press mass ratio with polyethers urethane, when polyethers urethane was 60～80, the quality of above-mentioned substance respectively was 0.75,4,1,0.35,0.5,30 and 15.
Aforesaid a kind of damping rubber, described polyethers urethane adopts casting type.
A kind of damping rubber of the present invention, it is composition based on polyethers urethanes and polyester urethanes, except that vulcanizing agent, the main ingredient of said composition, comprise that polyethers urethanes, polyester urethanes, poly-norbornene rubber, weighting agent, softening agent all mix back adding vulcanizing agent and obtain mould material, carry out compression molding and sulfuration then.
A kind of damping rubber composition of the present invention, can be used as and improve the magnetic suspension train material of Y to rubber spring, traditional magnetic suspension train is improved to the material of main part of rubber spring with Y, make it to have that specific tenacity is big, the compressive deformation amount big, restore fireballing characteristics, guarantee its more effective minimizing vibrations and reduce noise in the bullet train use.The present invention improves rebound velocity and the specific tenacity in its use under the prerequisite that does not change the original surface structure of this rubber spring.Described magnetic suspension train with Y to rubber spring use component as the polyethers urethane of polytetrahydrofuran/TDI as material of main part.That is to say, change the material of main part of this rubber spring, adopting the superior component of caoutchouc elasticity is that the polyethers urethane of polytetrahydrofuran/TDI is as material of main part, to improve its damping capacity, for overcoming the shortcoming that component is the polyethers urethane bad mechanical strength of polytetrahydrofuran/TDI, the utility model adds 30% polyester polyurethane material, makes product obtain higher physical strength, to reach the requirement of structured material.Product both can break when General Purpose Rubber damped products compressive deformation amount reached 40% left and right sides.Set deformation volume is about 10% behind the General Purpose Rubber damped products pressurized.A kind of damping rubber of the present invention can bear pressure greater than 8.5MPa, and deflection reaches 70%, and recovery speed is very fast, restores when parking 1min and reaches 96%, progressively slows down later on.In 5min, finally reach 〉=99%, set deformation volume only is 1%.
Effect of the present invention is conspicuous, and at first, it has improved the product specific tenacity, and makes the compressive deformation amount of product bigger, and recovery speed is faster; Secondly, it has improved the safety in utilization of product, and under the situation of compressive deformation 70%, product can not break, and can restore in the short period of time.
The invention has the beneficial effects as follows:
A kind of damping rubber of the present invention, specific tenacity is big, the compressive deformation amount is big, recovery speed is fast, is applied to bullet train and can guarantees more effectively to reduce vibrations in the use and reduce noise.Manufacturing process of the present invention is starting material and Synergist S-421 95 to be added in the agitator stirred 20-30 minute, pours after stirring that to carry out mold pressing in the product model crosslinked into.Manufacturing process of the present invention is simple relatively, and is easy to utilize.
Embodiment
Below in conjunction with embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of damping rubber of the present invention, the major ingredient of its material of main part is polyethers urethanes and polyester urethanes, the polyethers urethanes is 60～80: 40～20 with the ratio of the quality of polyester urethanes, also comprise poly-norbornene rubber, its quality be polyethers urethanes and polyester urethanes the quality summation 10～15%.
Wherein, described polyethers polyurethane component is polytetrahydrofuran/TDI.Described damping rubber also comprises complex compound, calcium stearate, high abrasion oven process carbon black and the coumarone indene resin of Sulfur, altax, captax, zinc chloride-captax, press mass ratio with polyethers urethane, when polyethers urethane was 60～80, the quality of above-mentioned substance respectively was 0.75,4,1,0.35,0.5,30 and 15.Described polyethers urethane adopts casting type.
The composite formula of embodiment and comparative example is all listed in table 1, and the matching component consumption is all in weight part, and the urethane of the trade mark 2500 is casting PU, and component is polytetrahydrofuran/TDI.The trade mark 2200 urethane are casting PU, and component is polyester glycol/TDI.The used product of embodiment and comparative example is a cylinder shape, and specification is Φ 125mm * 125mm.
Table 1
The present invention tests the product of present embodiment made, and when hydraulic fluid pressure reached 8.5MPa, this product deflection reached 90mm, amounts to be stressed by undeformed sectional area (S=122.66cm2) to be 102kN.But in fact, because the compressive deformation of exemplar, its pressurized sectional area increases, so the actual exemplar when detecting is stressed greater than actual observation record value F.Table 2 is that the utility model exemplar and common natural rubber Y contrast to the pressurized data to rubber spring Y.
The disengaging value of present embodiment detected by the storage period, and when parking 1min, recovery speed is very fast, reach＞96%, progressively slow down later on.In 5min, finally reach 〉=99%.Performance reaches maximum and bears pressure 75kN; Deflection 90mm restores deflection≤3mm (≤2.4%) after the release.
More than each routine test result as shown in table 2, these performance numbers all record according to corresponding national standards.There is table 2 as seen, adopts the present invention program, can obtain elasticity, tension set and specific tenacity preferably.
Table 2
Y is to rubber spring pressurized measured data record
Size(mm)：Φ125×125； S(cm
2)：122.656；
Claims (4)
1. damping rubber, it is characterized in that: the major ingredient of the material of main part of described damping rubber is polyethers urethanes and polyester urethanes, the polyethers urethanes is 60～80: 40～20 with the ratio of the quality of polyester urethanes, also comprise poly-norbornene rubber, its quality be polyethers urethanes and polyester urethanes the quality summation 10～15%.
2. a kind of damping rubber as claimed in claim 1 is characterized in that, described polyethers polyurethane component is polytetrahydrofuran/TDI.
3. a kind of damping rubber as claimed in claim 1 or 2, it is characterized in that, described damping rubber also comprises complex compound, calcium stearate, high abrasion oven process carbon black and the coumarone indene resin of Sulfur, altax, captax, zinc chloride-captax, press mass ratio with polyethers urethane, when polyethers urethane was 60～80, the quality of above-mentioned substance respectively was 0.75,4,1,0.35,0.5,30 and 15.
4. a kind of damping rubber as claimed in claim 1 is characterized in that, described polyethers urethane adopts casting type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101976320A CN102040823A (en) | 2009-10-23 | 2009-10-23 | Damping rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101976320A CN102040823A (en) | 2009-10-23 | 2009-10-23 | Damping rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102040823A true CN102040823A (en) | 2011-05-04 |
Family
ID=43907379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101976320A Pending CN102040823A (en) | 2009-10-23 | 2009-10-23 | Damping rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102040823A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040006170A1 (en) * | 2002-03-08 | 2004-01-08 | Stanislaw Haftka | Compositions comprising elastomers and high-molecular-weight polyethylenes with irregular particle shape, process for their preparation, and their use |
| US20040132855A1 (en) * | 2002-10-16 | 2004-07-08 | Kohl Paul A. | Polymers, methods of use thereof, and methods of decomposition thereof |
| CN1789326A (en) * | 2004-12-17 | 2006-06-21 | 上海华向橡胶制品有限公司 | High-damping oil-resistant rubber composition |
| CN101205336A (en) * | 2006-12-18 | 2008-06-25 | 上海华向橡胶制品有限公司 | Composition for manufacturing low-hardness rubber material |
-
2009
- 2009-10-23 CN CN2009101976320A patent/CN102040823A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040006170A1 (en) * | 2002-03-08 | 2004-01-08 | Stanislaw Haftka | Compositions comprising elastomers and high-molecular-weight polyethylenes with irregular particle shape, process for their preparation, and their use |
| US20040132855A1 (en) * | 2002-10-16 | 2004-07-08 | Kohl Paul A. | Polymers, methods of use thereof, and methods of decomposition thereof |
| CN1789326A (en) * | 2004-12-17 | 2006-06-21 | 上海华向橡胶制品有限公司 | High-damping oil-resistant rubber composition |
| CN101205336A (en) * | 2006-12-18 | 2008-06-25 | 上海华向橡胶制品有限公司 | Composition for manufacturing low-hardness rubber material |
Non-Patent Citations (2)
| Title |
|---|
| 于清溪: "《橡胶原材料手册》", 31 January 1996, 化学工业出版社 * |
| 陈尔凡等: ""聚酯-聚醚混合型聚氨酯的阻尼温域研究"", 《2008年全国高分子材料科学与工程研讨会会议论文》 * |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20110504 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |