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High-performance rubber composite material for shock-absorbing bearing and preparation method thereof

A technology of shock-absorbing bearings and composite materials, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of elasticity and flexibility that cannot meet the ideal requirements, few reports, low damping ratio, etc., and achieve a good comprehensive shock-absorbing effect , Improving the damping performance, the effect of high damping performance

Active Publication Date: 2016-10-05
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that its elasticity and flexibility cannot meet the ideal requirements, and its damping ratio is lower than that of lead rubber bearings.
Lead-core rubber bearings are widely used in bridge structures due to their excellent damping properties, but there are few reports in the literature on materials that replace lead cores.

Method used

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  • High-performance rubber composite material for shock-absorbing bearing and preparation method thereof
  • High-performance rubber composite material for shock-absorbing bearing and preparation method thereof
  • High-performance rubber composite material for shock-absorbing bearing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0026] Laminated rubber (clay glue No. 1 contains 100 parts of natural rubber and 5 parts of organic clay) composite materials were prepared according to Table 1. Concrete preparation process is as follows:

[0027] Table 1 clay rubber formula

[0028] formula

Example 1

Example 2

Example 3

Clay Glue No. 1

105 copies

105 copies

105 copies

Zinc oxide

5 copies

5 copies

5 copies

stearic acid

2 copies

2 copies

2 copies

paraffin

1 copy

1 copy

1 copy

Accelerator CZ

1.4 parts

1.4 parts

1.4 parts

[0029] Antiaging agent 4010NA

2 copies

2 copies

2 copies

sulfur

1.2 parts

1.2 parts

1.2 parts

Aromatic oil

6 servings

6 servings

6 servings

Si69

3 copies

3 copies

3 copies

Carbon black N330

40 copies

45 copies

50 copies

[0030] Laminated rubber preparation process - mast...

Embodiment 4-6

[0042] Prepare laminated rubber (clay glue No. 2, containing 100 parts of natural rubber, 5 parts of organoclay, 2 parts of interface agent butylpyridine) composite material according to Table 4, and the specific preparation process is as follows:

[0043] Table 4 clay rubber formula

[0044] formula

Example 4

Example 5

Example 6

Clay Glue No. 2

105 copies

105 copies

105 copies

Zinc oxide

5 copies

5 copies

5 copies

stearic acid

2 copies

2 copies

2 copies

paraffin

1 copy

1 copy

1 copy

Accelerator CZ

1.4 parts

1.4 parts

1.4 parts

Antiaging agent 4010NA

2 copies

2 copies

2 copies

sulfur

1.2 parts

1.2 parts

1.2 parts

Aromatic oil

6 servings

6 servings

6 servings

Si69

3 copies

3 copies

3 copies

Carbon black N330

40 copies

45 copies

50 copies

[0045] Laminated rubber pre...

Embodiment 7-9

[0057] Prepare laminated rubber (clay glue No. 1, containing 100 parts of natural rubber, 5 parts of organic clay) composite material according to Table 8, and the specific preparation process is as follows:

[0058] Table 8 Natural Rubber Formula

[0059] formula

Example 7

Example 8

Example 9

Clay Glue No. 1

105 copies

105 copies

105 copies

Zinc oxide

3 copies

3 copies

3 copies

stearic acid

1 copy

1 copy

1 copy

paraffin

1 copy

1 copy

1 copy

Accelerator CZ

2 copies

2 copies

2 copies

Antiaging agent 4010NA

2 copies

2 copies

2 copies

sulfur

1.5 servings

2.0 copies

2.5 servings

Aromatic oil

9 servings

9 servings

9 servings

Si69

3 copies

3 copies

3 copies

Carbon black N330

50 copies

50 copies

50 copies

[0060] Laminated rubber preparation process - masticate the clay g...

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PUM

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Abstract

A high-performance rubber composite material for damping bearings and a preparation method thereof belong to the technical field of rubber. The invention provides two novel rubber materials for damping bearings: one is an organic clay rubber composite material which has high tensile strength, elongation at break and modulus of compression and is suitable for laminated rubber of a bearing; And the other is a novel rubber hybrid material which has high damping performance and can greatly raise damping ratio of a bearing. A damping bearing prepared from the above materials has characteristics of excellent damping performance, low equivalent horizontal stiffness, easy transformation under low seismic wave and the like, and meets practical application requirements of a bridge. Replacement of lead cores in bearings is realized.

Description

technical field [0001] The invention belongs to the technical field of rubber, and relates to a high-performance rubber composite material for shock-absorbing bearings and a preparation method thereof. The prepared novel high-performance rubber composite material can be used to replace laminated rubber and high-damping lead cores in bridge shock-isolation bearings. Background technique [0002] Earthquake disasters cause damage to bridge structures, resulting in casualties and economic losses. Therefore, effective shock absorption and isolation protection are required in bridge structures. The main function of the bridge bearing is to carry the load vertically, and to reduce the acceleration response when the earthquake occurs through horizontal shear deformation, so as to protect the bridge from earthquake damage. [0003] At present, the following three shock-absorbing structural bearings are commonly used in bridge isolation structures: (1) Ordinary laminated rubber beari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/34C08K3/22C08K5/09C08K3/06C08K3/04C08L9/02C08K5/134C08K5/1545E01D19/04
CPCC08K5/1345C08K5/159C08K2201/014C08L7/00C08L2205/02C08L2205/025C08L2205/03E01D19/041C08L91/06C08L91/00C08K13/06C08K3/346C08K5/09C08K2003/2296C08K3/06C08K3/04C08K5/18C08L9/02
Inventor 张立群赵秀英杨守申温跃华温超张朋朋孙少辉
Owner BEIJING UNIV OF CHEM TECH