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Inorganic damping composite material and preparation method thereof

A technology of damping composite materials and inorganic materials, applied in the field of damping composite materials, can solve the problems of insufficient damping effect, and achieve the effects of reducing vibration, eliminating noise and improving the damping effect.

Inactive Publication Date: 2013-07-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] After searching the existing literature and technology, it was found that Zhang Lianmeng and Qin Yan et al. studied the hybrid reinforced epoxy resin-based piezoelectric damping composite material and i

Method used

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  • Inorganic damping composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Take 100 parts by weight of cement clinker, the cement clinker model is P.C32.5 / P.C32.5R, add the dry lead zirconate titanate powder that has been treated with silane coupling agent in advance and cleaned with ethanol aqueous solution, and then add Mix one or several kinds of conductive fillers with gypsum evenly, stir mechanically at room temperature for 10 minutes, put the mixture into an ultrasonic oscillator, and ultrasonically mix at 90°C and 80Hz for 2 hours. After curing and molding at room temperature, the sample Put it in a DC oil bath electric field for polarization, the polarization temperature is 100°C, the polarization voltage is 10km / mm, and the polarization time is 120min, then put the sample into 1.0Hz, 500mN, room temperature to 200°C for dynamic Mechanical analysis, and mechanical performance testing. Embodiment 1~5 formula is as shown in table 1, and the damping performance of gained piezoelectric damping composite material is as, mechanical property ...

Embodiment 6～10

[0040] Take 100 parts by weight of cement clinker, the cement clinker model is P.O42.5 / P.O42.5R, add dry barium titanate that has been treated with silane coupling agent in advance, and washed with ethanol aqueous solution, and then add conductive filler And the gypsum is mixed evenly, mechanically stirred at room temperature for 10 minutes, put the mixture into an ultrasonic oscillator, and vibrate at 90 ° C and 80 Hz for 2 hours. After curing and molding at room temperature, put the sample into a DC oil bath electric field for polarization The polarization temperature is 100°C, the polarization voltage is 10km / mm, and the polarization time is 120min, and then the sample is placed in 1.0Hz, 500mN, room temperature to 200°C for dynamic mechanical analysis and mechanical performance testing. The formulations of Examples 6-10 are shown in Table 3, and the damping properties and mechanical properties of the obtained piezoelectric damping composite materials are shown in Table 4. ...

Embodiment 11～15

[0042] Take 100 parts by mass of the prepared liquid asphalt, treat the lead zirconium titanate lanthanate powder with a silane coupling agent, and wash it with an aqueous ethanol solution. After drying, take a certain amount, then add a conductive filler, and stir the mixture mechanically for 10 minutes at room temperature. Put it into an ultrasonic oscillator, vibrate at 80°C and 90Hz for 3 hours, after curing and molding at room temperature, put the sample into a DC oil bath electric field for polarization, the polarization temperature is 60°C, and the polarization voltage is 10km / mm , the polarization time is 100min, and then put the sample into 1.0Hz, 500mN, room temperature to 200°C for dynamic mechanical analysis and mechanical performance test. The formulas of Examples 11 to 15 are as shown in Table 5, and the damping performance and mechanical properties of the obtained piezoelectric damping composite material are as shown in Table 6. The asphalt material obtained by t...

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Abstract

The invention discloses an inorganic damping composite material and a preparation method thereof. The material is prepared from the following components in parts by weight: 100 parts of inorganic material matrixes, 10-150 parts of piezoelectric filler, 1-50 parts of conductive filler and 1-50 parts of auxiliaries, wherein the inorganic material matrixes include cement, glass, ceramics and asphalt; the piezoelectric filler is piezoelectric ceramic with the average particle size ranging from 100nm to 100um; the conductive filler is an organic carbon compound; and the components are cured and formed according to the proportions to obtain the inorganic damping composite material. The inorganic damping composite material provided by the invention has a better damping effect, can be used for effectively eliminating noise, and can be widely applied to fields such as traffic transportation, large buildings, medical hygienic materials and the like.

Description

technical field [0001] The invention relates to the field of damping composite materials, and more particularly, relates to an inorganic damping composite material and a preparation method thereof. technical background [0002] With the development of social economy, mechanical equipment is developing towards high speed, high efficiency and automation. However, the vibration generated during mechanical work will seriously damage the accuracy, reliability and stability of the equipment, and the noise generated will also endanger people's physical and mental health. . Based on this demand, vibration and noise reduction materials came into being. Damping material is a functional material that can absorb vibration mechanical energy and convert it into heat energy, electric energy, magnetic energy or other forms of energy and lose it. It can eliminate environmental pollution caused by noise and vibration. [0003] With the speed up of passenger cars and trains in our country, t...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B26/26C04B35/00C04B14/36C08L95/00C08K9/06C08K3/24
Inventor 黄志雄余龙颖童亚军黄坤秦岩梅启林王雁冰张联盟
Owner WUHAN UNIV OF TECH
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