High-damping rubber support base and manufacturing method thereof

A rubber bearing, high damping technology, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of polluted environment, low damping, high equivalent damping ratio, and achieve simple process and high tanδ. , the effect of wide temperature range

Inactive Publication Date: 2014-06-18
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiencies such as low damping, poor protection effect, and environmental pollution existing in existing bridges and building supports, and provides a high-damping rubber support and a manufacturing method thereof. It will not endanger the health of workers during the production process, and will not cause pollution to the environment during the use process. Its equivalent damping ratio is high and the protection effect is good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. The high damping rubber bearing is prepared by the following method, and the process steps are as follows:

[0033] 1. Prepare raw materials:

[0034] Nitrile rubber 60, PVC pellets 40, thermoplastic phenolic resin 10, carbon black 15, mica powder 50, plasticizer 20, hindered phenol A-80:10, microcrystalline wax 2, antioxidant 2, stabilizer 3, accelerator 2. Vulcanizing agent 2; the unit of the above values ​​is grams.

[0035] 2. Mixing:

[0036] Mix the PVC granules and plasticizer in step 1 evenly through a kneader, and set aside;

[0037] Add nitrile rubber into the internal mixer, stir for 2 minutes, add the above-mentioned uniformly mixed PVC pellets and plasticizer mixture into the internal mixer and knead for 5 minutes, then add thermoplastic phenolic resin, carbon black, mica powder, hindered phenol A Add -80, microcrystalline wax, anti-aging agent and stabilizer into the internal mixer and mix for 5 minutes.

[0038] 3. Add sulfur:

[0039] Put the mix...

Embodiment 2

[0048] Except following difference, other is with embodiment 1.

[0049] 1. Prepare raw materials:

[0050] Nitrile rubber 70, PVC grain 30, thermoplastic phenolic resin 10, carbon black 15, mica powder 50, plasticizer 20, hindered phenol A-60: 10, microcrystalline wax 2, antioxidant 2, stabilizer 3, accelerator 2. Vulcanizing agent 2; the unit of the above values ​​is grams.

[0051] 2. Mixing:

[0052] Mix the PVC granules and plasticizer in step 1 evenly through a kneader, and set aside;

[0053] Set the roller temperature of the plasticizing machine at 170°C. After the temperature is balanced, add the above-mentioned uniformly mixed PVC pellets and plasticizer mixture into the plasticizing machine and knead for 5 minutes. When the PVC pellets are completely plasticized and transparent, mix the nitrile rubber Add into the plastic refining machine and mix for 5 minutes, then add thermoplastic phenolic resin, carbon black, mica powder, hindered phenol A-60, microcrystallin...

Embodiment 3

[0056] Except following difference, other is with embodiment 1.

[0057] 1. Prepare raw materials:

[0058] Isoprene rubber 70, chlorinated polyethylene 40, thermoplastic phenolic resin 8, carbon black 25, mica powder 30, plasticizer 15, hindered phenol A-60:10, microcrystalline wax 2, anti-aging agent 2, stabilizer 3. Accelerator 2, vulcanizing agent 2; the above values ​​are in grams.

[0059] 2. Mixing:

[0060] The chlorinated polyethylene and plasticizer of step 1 are mixed homogeneously by kneader, for subsequent use;

[0061]Add isoprene rubber into the internal mixer, stir for 2 minutes, add the mixture of chlorinated polyethylene and plasticizer after mixing uniformly into the internal mixer for 5 minutes, and then mix thermoplastic phenolic resin, carbon black, mica powder , hindered phenol A-60, microcrystalline wax, anti-aging agent and stabilizer were added to the internal mixer and mixed for 15 minutes.

[0062] Through the performance test, the equivalent da...

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PUM

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Abstract

The invention relates to a high-damping rubber support base and a manufacturing method thereof. The high-damping rubber support base disclosed by the invention comprises the following components in parts by weight: 60-80 parts of rubber, 10-50 parts of plastic particles, 15-50 parts of resin, 5-25 parts of carbon black, 30-100 parts of mica powder, 5-30 parts of plasticizer, 5-30 parts of hindered phenol, 2-5 parts of microcrystalline wax, 1-3 parts of anti-aging agent, 1-3 parts of stabilizer, 2-5 parts of accelerant, and 1-4 parts of vulcanizing agent. The preparation method disclosed by the invention comprises the steps of preparing raw materials, mixing, adding sulphur, rolling a rubber piece, forming and vulcanizing. The equivalent damping ratio of the prepared high-damping rubber support base achieves 20-30%. The high-damping rubber support base prepared by the manufacturing method disclosed by the invention is high in damping; all the components are natural components; pollution to the environment cannot be caused; the preparation method of the high-damping rubber support base is simple in process.

Description

technical field [0001] The invention relates to the construction field, in particular to a high-damping rubber bearing and a manufacturing method thereof. Background technique [0002] At present, the bearings for bridges and buildings are generally made of natural rubber, and the bearings with high damping generally use lead rubber bearings, that is, one or more lead cores are added inside the natural rubber bearings. For natural rubber bearings, due to its low damping, the energy absorbed is limited when an earthquake occurs, and important bridges and buildings cannot be well protected, and dampers must be designed and installed, so its application is limited; although lead The core rubber bearing has high damping and good protection effect, but because lead is a heavy metal, it will pollute the environment during use and bring harm to the health of workers during the production process, which does not meet the requirements of green environmental protection. Therefore, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/22C08L33/08C08L9/00C08L23/28C08L27/06C08L23/34C08L61/06C08K13/02C08K3/04C08K3/34C08K3/06C08K5/14B29C43/24B29C35/02B32B15/06B32B15/082
Inventor 李吉刚李静孙冬冬
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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