Low-frequency damping visco-elastic material

A viscoelastic, low-frequency technology, applied in the field of viscoelastic materials with low frequency vibration and high energy consumption, can solve the problems that the aging resistance of viscoelastic materials is difficult to meet the requirements, and the durability of viscoelastic materials is not very good, so as to overcome the adhesion Poor performance, good energy dissipation characteristics, and the effect of improving damping performance

Inactive Publication Date: 2013-11-13
东南大学常州研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the loss factor of domestic viscoelastic materials is less than 0.4 under low-frequency vibration, and the change with temperature is more drastic, and there is still a certain gap compared with foreign viscoelastic materials of the same type
[0006] In addition, the durability of domestic viscoelastic materials is not very good. The design service life of general building structures is 50 years. Therefore, the aging resistance of viscoelastic materials used in house shock absorption projects is at least 50 years.
[0007] At present, the aging resistance of domestically produced viscoelastic materials is difficult to meet this requirement.

Method used

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Embodiment Construction

[0021] A low-frequency shock-absorbing viscoelastic material of the present invention is formed by mixing main rubber, reinforcing system, vulcanization system, anti-aging system and softening-plasticizing system, wherein the main rubber is bromobutyl rubber, and the reinforcing system is High wear-resistant carbon black and 100-200 mesh graphite powder mixed system, vulcanization system is vulcanized resin, zinc oxide, magnesium oxide and stearic acid, anti-aging system is rubber anti-aging agent MBZ and anti-aging agent Naugard445, softening-plasticizing system is TOTM (trioctyl trimellitate) and Escorez 2203LC resin. The specific formula is as follows:

[0022] Recipe one:

[0023]

[0024] Recipe 2:

[0025]

[0026] Recipe three:

[0027]

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Abstract

The invention relates to a low-frequency damping visco-elastic material which is a low-frequency vibration high-energy consumption visco-elastic material used in civil engineering structures, high-voltage transmission systems, machinery, vehicle shock (vibration) reduction projects. The visco-elastic material is prepared by mixing by using a main body rubber, a reinforcing system, a vulcanization system, an anti-aging system, and a softening-plasticizing system. As a result of large amounts of tests, the low-frequency damping visco-elastic material has good energy consumption and anti-aging performances under an application environment with a frequency of 0.1-10Hz and a temperature of -20 DEG C to 50 DEG C. Loss factor is 0.5-1.0, and a durability life reaches 80 years.

Description

technical field [0001] The low-frequency shock-absorbing viscoelastic material of the present invention is a low-frequency vibration high-energy-consuming viscoelastic material suitable for civil building structures, high-voltage power transmission systems, machinery, and vehicle shock-absorbing (vibration) projects. Background technique [0002] Viscoelastic material is a high molecular polymer, which is a kind of energy-dissipating material with excellent performance. This material is both viscous and elastic. When deformed by alternating stress, a part of the energy is stored as potential energy, and the other part of the energy is converted into heat energy and dissipated. The viscoelastic damper made of viscoelastic material as the core part is an effective passive damping (vibration) control device. In recent years, it has been increasingly used in structural damping control and post-earthquake repair and reinforcement projects abroad. The research on viscoelastic dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08K13/02C08K3/04C08K3/22C08K5/09C08K5/12
Inventor 徐赵东胡健蒋志红徐超
Owner 东南大学常州研究院
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