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Compound preparation method for piezoelectric ceramic and carbon material

A technology of piezoelectric ceramics and carbon materials, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve complex problems, achieve the effects of reducing randomness, improving damping performance, and effective contact

Active Publication Date: 2014-09-24
INST OF MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, due to the complexity of in-situ growth techniques for most piezoelectric materials and conductive materials, there have been no reports on the introduction of piezoelectric / conductive composite materials into polymer matrix materials.

Method used

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  • Compound preparation method for piezoelectric ceramic and carbon material
  • Compound preparation method for piezoelectric ceramic and carbon material
  • Compound preparation method for piezoelectric ceramic and carbon material

Examples

Experimental program
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Embodiment Construction

[0019] Below is the material used for the example

[0020] Absolute ethanol: analytically pure, Beijing Chemical Plant.

[0021] Maleic acid: analytically pure, Sinopharm Chemical Reagent Co., Ltd. It is a double-headed carboxylic acid.

[0022] Lead niobium magnesium zirconate titanate (PMN): purchased from Baoding Hongsheng Acoustic Electronic Equipment Co., Ltd., Hebei Province. Its particle size is: 200nm ~ 5000nm.

[0023] Carbon nanotubes: purchased from Beijing Nachen Technology Development Co., Ltd. It is a multi-walled carbon nanotube with an outer diameter of 50nm-100nm and a length of 10-20μm.

[0024] Specifically, the compound preparation method of piezoelectric ceramics and carbon material (carbon nanotube, carbon fiber or graphene etc.), it comprises the steps:

[0025] (1) Sieve the piezoelectric ceramic powder to keep the powder with a particle size below 2 μm;

[0026] (2) ultrasonically dissolve 15-30 g of maleic acid in 100-150 ml of ethanol, then add...

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Abstract

The invention provides a compound preparation method for piezoelectric ceramic and a carbon material. Compound preparation of the piezoelectric ceramic and the carbon material (a carbon nano tube, carbon fibers or graphene and the like) is realized by adopting cis-butenedioic acid to respectively carry out surface modification on the piezoelectric ceramic particles and the carbon material (the carbon nano tube, the carbon fibers or graphene and the like) by means of the characteristic that cis-butenedioic acid has double carboxylic acid, so as to realize improvement of the damping performance of the piezoelectric ceramic and the carbon material as a macromolecular composite material with piezoelectric and conductive phases. The technology compensates for the deficiencies of doping the piezoelectric phase and the conductive phase in existing macromolecular materials and reduces the randomness of contact of the two phases, so that the two phases are more effectively contacted.

Description

technical field [0001] The invention relates to a compound preparation method of piezoelectric ceramics and carbon materials (carbon nanotubes, carbon fibers or graphene, etc.). Background technique [0002] As the operating speed of various machinery and equipment is getting higher and higher, the problem of ring damage caused by vibration has become a major problem for high-speed rotating machinery and large-scale engineering structures. In order to solve the damage problem caused by vibration fatigue, damping technology has been widely concerned and researched as an effective vibration and noise reduction technology. [0003] At present, damping materials mainly include traditional viscoelastic damping materials and intelligent damping materials. Compared with traditional viscoelastic damping materials, smart damping materials have introduced a new vibration-absorbing mechanism and their vibration-reducing effects are often better than traditional viscoelastic damping ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K3/24C08K7/06C08K7/00C08K3/04C09C1/36C09C3/06C09C3/08
Inventor 冯亚菲姜恒陈猛王育人
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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