阅读说明：本技术 干线铁路和城市轨道交通用隔振垫材料 (Vibration isolation pad material for main line railway and urban rail transit ) 是由 李荣华 高增增 张艳满 徐凌雁 梁延科 张艳 许孔斌 牛文强 林德福 李昕 张德 于 2020-06-23 设计创作，主要内容包括：本发明公开了一种干线铁路和城市轨道交通用隔振垫材料,隔振垫材料由一定比例的天然橡胶、氯丁橡胶、半补强炭黑、气相法白炭黑、芳烃油、氧化锌、硬脂酸、防老剂RD、防4010NA、莱茵散、促进剂和硫磺配制而成。应用本发明配方生产的隔振垫基本力学性能优异,拉伸强度≧20MPa,扯断延伸率≧500％,动静刚度比小于1.30,4hz频率下1000万次不发生疲劳损坏,完全满足高速铁路、城际铁路、城市轨道交通用隔振垫的技术要求。(The invention discloses a vibration isolation pad material for main line railways and urban rail transit, which is prepared from natural rubber, chloroprene rubber, semi-reinforcing carbon black, fumed silica, aromatic oil, zinc oxide, stearic acid, an anti-aging agent RD, 4010NA, rhinestone powder, an accelerant and sulfur in a certain proportion. The vibration isolation pad produced by applying the formula disclosed by the invention is excellent in basic mechanical property, the tensile strength is not less than 20MPa, the elongation at break is not less than 500%, the dynamic-static stiffness ratio is less than 1.30, the fatigue damage does not occur for 1000 thousands of times under the frequency of 4hz, and the technical requirements of the vibration isolation pad for high-speed railways, intercity railways and urban rail transit are completely met.)

1. The utility model provides a vibration isolation gasket material for main line railway and urban rail transit which characterized in that: the vibration isolation pad material comprises the following components in parts by weight:

2. the vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 1, wherein: the anti-aging agent is a combination of an anti-aging agent RD and an anti-aging agent 4010 NA.

3. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 2, wherein: the mass part of the anti-aging agent RD is 1-2 parts; the mass portion of the anti-aging agent 4010NA is 1-2.

4. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 1, wherein: the accelerator is a combination of accelerator DZ and accelerator DM.

5. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 4, wherein: the mass part of the accelerant DZ is 0.5-1.5; the mass part of the accelerator DM is 0.1-0.5.

6. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 1, wherein: the chloroprene rubber is chloroprene rubber PS-40A; the semi-reinforcing carbon black is semi-reinforcing carbon black 774.

7. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 1, wherein: the preparation method of the fumed silica comprises the following steps: mixing and stirring organosilane and white carbon black according to the mass ratio of 1:20, and cooling to room temperature after modification.

8. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 7, wherein: the stirring adopts a high-speed stirrer to set the rotating speed to be 350r/min, and the stirring is continued for 10 minutes.

9. The vibration isolation gasket material for the trunk railway and the urban rail transit according to claim 7, wherein: the organosilane is a silane coupling agent SI 69.

10. The vibration isolation gasket material for the trunk railway and the urban rail transit according to any one of claims 1 to 9, wherein: the vibration isolation pad material comprises the following components in parts by weight:

Technical Field

The invention belongs to the field of rubber materials applied to rail transit, and particularly relates to a vibration isolation pad material for main railways and urban rail transit.

Background

With the development of science and technology, rail transit is also rapidly developed, and the rapid development brings higher quality of life to people, and simultaneously, the high maintenance and repair cost caused by vibration caused by rail transit also brings huge economic burden to people. The quality of life of residents around rail transit is affected.

Disclosure of Invention

The invention is provided for overcoming the defects in the prior art, and aims to provide a vibration isolation pad material for main railways and urban rail transit.

The invention is realized by the following technical scheme:

the vibration isolation pad material for the main line railway and the urban rail transit comprises the following components in parts by mass:

in the technical scheme, the anti-aging agent is a combination of an anti-aging agent RD and an anti-aging agent 4010 NA.

In the technical scheme, the mass part of the antioxidant RD is 1-2 parts; the mass portion of the anti-aging agent 4010NA is 1-2.

In the above technical scheme, the accelerator is a combination of an accelerator DZ and an accelerator DM.

In the technical scheme, the mass part of the accelerant DZ is 0.5-1.5 parts; the mass part of the accelerator DM is 0.1-0.5.

In the technical scheme, the chloroprene rubber is chloroprene rubber PS-40A; the semi-reinforcing carbon black is semi-reinforcing carbon black 774.

In the above technical scheme, the preparation method of the fumed silica comprises the following steps: mixing and stirring organosilane and white carbon black according to the mass ratio of 1:20, and cooling to room temperature after modification.

In the technical scheme, the stirring is carried out for 10 minutes by adopting a high-speed stirrer and setting the rotating speed to be 350 r/min.

In the technical scheme, the organosilane is a silane coupling agent SI69

In the technical scheme, the vibration isolation pad material comprises the following components in parts by mass:

the invention has the beneficial effects that:

the invention provides a vibration isolation pad material for main railways and urban rail transit, which can effectively improve the vibration attenuation effect of a rubber vibration isolation pad, ensure the low-vibration and low-noise state of rail line operation, and meet the living requirements of high-silence requirement places such as surrounding residents, scientific research institutions, schools, hospitals and the like. The vibration isolation pad produced by applying the formula disclosed by the invention is excellent in basic mechanical property, the tensile strength is not less than 20MPa, the elongation at break is not less than 500%, the dynamic-static stiffness ratio is less than 1.30, the fatigue damage does not occur for 1000 thousands of times under the frequency of 4hz, and the technical requirements of the vibration isolation pad for high-speed railways, intercity railways and urban rail transit are completely met.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following will further describe the technical solution of the vibration isolation pad material for the main line railway and the urban rail transit by the specific implementation manner.