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Special rubber for building isolation bearing and preparation method thereof

A seismic isolation bearing and special rubber technology, applied in the field of rubber materials, can solve the problems of low hysteresis performance, weak energy storage and education performance, complex structure, etc., and achieve good seismic isolation effect, strong energy storage and dissipation performance, and hysteresis. high performance effects

Inactive Publication Date: 2020-03-17
ANHUI WEIWEI RUBBER PARTS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural rubber isolator has high elasticity and has good restoring force in the horizontal direction, but due to the low damping value of pure natural rubber, it cannot meet the high damping characteristics required by the isolator, and its hysteresis performance is low , Energy storage consumption is weak
Moreover, when the natural rubber bearing is actually used, it usually needs to be used in conjunction with energy-consuming devices such as dampers. The structure is complex, the installation is troublesome, and the energy consumption is large.
The thin layer of rubber in the current rubber isolation bearings cannot meet the requirements of "high strength, high flexibility, high elasticity, and high damping" for rubber used in high-performance isolation bearings, and the isolation effect is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of special rubber for building shock-isolation bearings, comprising the steps of:

[0023] S1. Plastic mixing with internal mixer: In the internal mixing chamber of the internal mixer, add green rubber dandelion rubber, Eucommia rubber, and silver rubber chrysanthemum rubber respectively according to the parts by weight, and mix and masticate for 5 to 10 minutes under the condition of 85-90°C , adding nitrile rubber, mixing and masticating for 3-5 minutes under the condition of 90-95°C, to obtain a rubber-mixed plastic product;

[0024] S2. Internal mixer mixing: according to the weight parts, add the rubber compounded product prepared in step S1 to the internal mixer, pressurize for 3 to 5 minutes, add epoxidized natural rubber, AO-80, white carbon black , nano-zinc oxide, stearate, anti-aging agent, pressurized banburying for 15-20min; then add hydroxyl silicone oil, aluminum phosphate, calcium carbonate, paraffin, banburying for 5-7min; finally a...

Embodiment 2

[0029] A preparation method of special rubber for building shock-isolation bearings, the steps are the same as in Example 1, the difference is that: in the preparation method of special rubber for building shock-isolation bearings, in parts by weight, the raw materials are: green 100 parts of dandelion rubber, 20 parts of eucommia rubber, 30 parts of silver rubber chrysanthemum rubber, 40 parts of nitrile rubber, 30 parts of epoxidized natural rubber, 30 parts of AO-80, 20 parts of white carbon black, 3 parts of nano zinc oxide , 6 parts of stearate, 2 parts of hydroxyl silicone oil, 2 parts of aluminum phosphate, 2 parts of sulfur, 5 parts of calcium carbonate, 1 part of paraffin, 1 part of anti-aging agent, and 3 parts of accelerator.

Embodiment 3

[0031] A preparation method of special rubber for building shock-isolation bearings, the steps are the same as in Example 1, the difference is that: in the preparation method of special rubber for building shock-isolation bearings, in parts by weight, the raw materials are: green 95 parts of dandelion rubber, 25 parts of eucommia rubber, 23 parts of silver rubber chrysanthemum rubber, 35 parts of nitrile rubber, 25 parts of epoxidized natural rubber, 25 parts of AO-80, 35 parts of white carbon black, 6 parts of nano-zinc oxide , 4 parts of stearate, 4 parts of hydroxyl silicone oil, 5 parts of aluminum phosphate, 5 parts of sulfur, 3 parts of calcium carbonate, 3 parts of paraffin, 2 parts of anti-aging agent, and 2 parts of accelerator.

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Abstract

The invention relates to the technical field of rubber materials, in particular to special rubber for a building isolation bearing and a preparation method thereof. The special rubber for a building isolation bearing comprises the following raw materials by weight: 85-100 parts of koksaghyz rubber, 20-30 parts of eucommia ulmoides tree rubber, 15-30 parts of parthenium argentatum rubber, 30-40 parts of nitrile butadiene rubber, 20-30 parts of epoxidized natural rubber, 20-30 parts of AO-80, 20-50 parts of white carbon black, 3-8 parts of nano zinc oxide and the like. The invention also provides a preparation method of the special rubber for a building isolation bearing. The high-performance special rubber for a building isolation bearing prepared by cross-linking has the characteristics ofhigh strength, high flexibility, high elasticity and high damping. When the special rubber is prepared into a building isolation bearing, a damper and other energy consumption devices are not neededfor cooperation, and the special rubber has high hysteresis performance, strong energy storage and dissipation performance, and good vibration isolation effect.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a special rubber for building shock-isolation bearings and a preparation method thereof. Background technique [0002] Earthquake, as an unpredictable natural disaster, often brings serious casualties and property losses. Improving the earthquake resistance of buildings is an important way to resist earthquake damage and reduce casualties and property losses. [0003] The traditional rigid method of anti-seismic is to resist earthquakes and ensure the safety of people and property by enhancing the bearing resistance capacity of the building structure itself, such as stiffness and ductility. Traditional anti-seismic methods are effective in resisting small-scale earthquakes, but it is difficult to meet the required stiffness and strength requirements when encountering large-scale earthquakes, and the cost of increasing the structure's anti-seismic capacity is very high. ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/02C08L15/00C08K13/04C08K7/26C08K3/22C08K5/098
CPCC08K2003/2296C08K2201/011C08L7/00C08L2205/025C08L2205/035C08L9/02C08L15/00C08K13/04C08K7/26C08K3/22C08K5/098
Inventor 李俊鲍俊瑶毛旺龙张文强袁良鹏赵旭
Owner ANHUI WEIWEI RUBBER PARTS GRP
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