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Rubber piezoelectric ceramic damping vibration attenuation material and preparation thereof

A piezoelectric ceramic and vibration damping material technology, applied in the field of rubber piezoelectric ceramic damping and vibration damping material and its preparation, can solve problems such as large dependence, and achieve the effects of promoting dispersion, high sound absorption performance, and uniform dispersion

Inactive Publication Date: 2009-07-22
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Introduce piezoelectric ceramics into rubber, through the viscoelasticity of rubber itself, combined with the piezoelectric properties of piezoelectric ceramics, rubber piezoelectric ceramic composite materials are prepared by rubber processing and polarization methods, which solves the problem of polymer vibration reduction The vibration damping effect of the material is highly dependent on the use conditions (such as temperature and vibration frequency). The obtained composite material has a dense structure, uniform dispersion, certain flexibility, high sound absorption performance, and simple processing technology. , the characteristics of easy molding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: A composite material composed of 100 parts of nitrile rubber, 100 parts of P-5H piezoelectric ceramic powder with a particle size of 0.5-10 microns, 8 parts of sulfur and 5 parts of carbon fiber.

[0026] Plasticize nitrile rubber on the open mill, add P-5H piezoelectric ceramic powder, carbon fiber, anti-aging agent 4010NA, coupling agent Si69, accelerator D, sulfur, control the temperature of the roller at 50-60°C, and mix evenly , to prepare samples. The samples were vulcanized on a flat vulcanizer to obtain blanks.

[0027] Add aluminum sheets on both sides of the composite material billet as electrodes, and polarize in a high-temperature oil bath polarization device to obtain a composite material. Polarization conditions: temperature is 80°C, electric field strength is 3-10kv / mm, and time is 25min.

Embodiment 2

[0028] Example 2: A composite material composed of 100 parts of nitrile rubber, 613 parts of P-5H piezoelectric ceramic powder with a particle size of 0.5-10 microns, 8 parts of sulfur and 5 parts of carbon fiber.

[0029] Plasticize nitrile rubber on the open mill, add P-5H piezoelectric ceramic powder, carbon fiber, anti-aging agent 4010NA, coupling agent Si69, accelerator D, sulfur, control the temperature of the roller at 50-60°C, and mix evenly , to prepare samples. The samples were vulcanized on a flat vulcanizer to obtain blanks.

[0030] Add aluminum sheets on both sides of the composite material billet as electrodes, and polarize in a high-temperature oil bath polarization device to obtain a composite material. Polarization conditions: temperature is 80°C, electric field strength is 3-10kv / mm, and time is 25min.

Embodiment 3

[0031] Example 3: A composite material composed of 100 parts of nitrile rubber, 613 parts of P-4 piezoelectric ceramic powder with a particle size of 0.5-10 microns, 8 parts of sulfur and 10 parts of carbon fiber.

[0032] Plasticize the nitrile rubber on the open mill, add P-4 piezoelectric ceramic powder, carbon fiber, anti-aging agent 4010NA, coupling agent Si69, accelerator D, sulfur, control the roller temperature at 50-60°C, and mix evenly , to prepare samples. The samples were vulcanized on a flat vulcanizer to obtain blanks.

[0033] Add aluminum sheets on both sides of the composite material billet as electrodes, and polarize in a high-temperature oil bath polarization device to obtain a composite material. Polarization conditions: temperature is 80°C, electric field strength is 3-10kv / mm, and time is 25min.

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PUM

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Abstract

The invention relates to a rubber piezoceramics damping vibration attenuation material and a preparation method thereof. In virtue of the combination of the elasticity of the rubber and the piezoelectric property of the piezoceramics, the rubber piezoceramics composite material is prepared by the method of rubber processing and polarizing. The method leads to the uniform dispersion of the piezoceramics in the rubber, properly solves the problem of interface combination between the piezoceramics and the rubber, and obtains the composite material that is characterized by compact structure, uniform dispersion and good sound-absorption performance.

Description

Technical field: [0001] The invention relates to a rubber piezoelectric ceramic damping vibration reduction material and a preparation method thereof. Background technique: [0002] In vibration-damping materials, rubber plays an increasingly important role and is the direction of future development of vibration-damping materials. Vibration-absorbing rubber has the following advantages: small elastic modulus, excellent performance in isolating vibration; rubber is an incompressible substance, which produces a time delay between stress and deformation, has nonlinear properties, and is more effective as an anti-vibration material ;Small size, light weight, simple supporting method, easy to bond firmly with metal. However, there are still big problems when rubber is used as a vibration-absorbing material. These problems originate from the material itself and are difficult to solve. A big disadvantage of rubber damping materials is that the compression set is very large. Anoth...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/04C08K3/18C08K7/06C08K3/06C08K5/54B29B7/72
Inventor 刘力蒋小强曹建莉刘彦东
Owner BEIJING UNIV OF CHEM TECH
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