A kind of preparation method of ceramic/resin piezoelectric composite

A technology of composites and ceramics, which is applied in the direction of ceramic products, other household utensils, household utensils, etc., can solve the problems of functionalities that are rarely reported, and achieve the effects of reducing production costs, wide application, and simple equipment

Inactive Publication Date: 2017-07-18
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, little has been reported on the functional aspects of

Method used

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  • A kind of preparation method of ceramic/resin piezoelectric composite
  • A kind of preparation method of ceramic/resin piezoelectric composite
  • A kind of preparation method of ceramic/resin piezoelectric composite

Examples

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example 1

[0030] In a 60mL polyethylene plastic bottle, weigh 25g of deionized water and add 4 A few drops of PAA 0.03g dispersant, stir evenly; weigh 25g of lead zirconate titanate (PZT), slowly add it into a polyethylene plastic bottle under continuous stirring, and add an appropriate amount of zirconia balls, and ball mill for 24hrs. 3 wt.% (based on dry weight of ceramic powder) of B-1000 and 2 wt.% (based on dry weight of ceramic powder) of B-1007 (acrylic polymer emulsion) were added to the mill jar. Place the mill bottle on the ball mill for slow ball milling for half an hour, inject the suspension into a PDMS (polydimethylsiloxane) organic soft mold with one side opening (such as figure 2 Shown), after vacuum air bubbles (half an hour), the opening was closed with copper foil. Place the organic soft mold upside down on the copper metal cold plate (such as image 3 shown) to start freezing. After the freezing is complete, the sample is removed from the mold and moved to a vac...

example 2

[0032] In a 60mL polyethylene plastic bottle, weigh 20g of deionized water and add 4 A few drops of PAA 0.036g dispersant, stir evenly; weigh 30g of lead zirconate titanate (PZT), slowly add it into a polyethylene plastic bottle under continuous stirring, and add an appropriate amount of zirconia balls, and ball mill for 24hrs. 3 wt.% (based on dry weight of ceramic powder) of B-1000 and 2 wt.% (based on dry weight of ceramic powder) of B-1007 (acrylic polymer emulsion) were added to the mill jar. Place the mill bottle on the ball mill for slow ball milling for half an hour, inject the suspension into a PDMS (polydimethylsiloxane) organic soft mold with one side opening (such as figure 2 Shown), after vacuum air bubbles (half an hour), the opening was closed with copper foil. Place the organic soft mold upside down on the copper metal cold plate (such as image 3 shown) to start freezing. After the freezing is complete, the sample is removed from the mold and moved to a va...

example 3

[0034]In a 60mL polyethylene plastic bottle, weigh 15g of deionized water and add 4 A few drops of PAA 0.042g dispersant, stir evenly; weigh 35g of lead zirconate titanate (PZT), slowly add it into a polyethylene plastic bottle under continuous stirring, and add an appropriate amount of zirconia balls, and ball mill for 24hrs. 3 wt.% (based on dry weight of ceramic powder) of B-1000 and 2 wt.% (based on dry weight of ceramic powder) of B-1007 (acrylic polymer emulsion) were added to the mill jar. Place the mill bottle on the ball mill for slow ball milling for half an hour, inject the suspension into a PDMS (polydimethylsiloxane) organic soft mold with one side opening (such as figure 2 Shown), after vacuum air bubbles (half an hour), the opening was closed with copper foil. Place the organic soft mold upside down on the copper metal cold plate (such as image 3 shown) to start freezing. After the freezing is complete, the sample is removed from the mold and quickly moved ...

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Abstract

The invention belongs to the technical field of material preparation and relates to a preparation method of a ceramic / resin piezoelectric composite. In particular, the present invention relates to a freeze-drying method. The feature of the present invention is that the piezoelectric ceramic suspension with water as solvent is rapidly frozen, and the ice crystals are sublimated in a low-temperature vacuum environment to obtain a porous piezoelectric material green body with a layered structure. After sintering the layered piezoelectric ceramic The thickness of the ceramic wall is between 1 micron and 500 microns; the piezoelectric composite can be obtained by filling the obtained porous piezoelectric ceramics with a layered structure with epoxy resin. The piezoelectric coefficient d of the prepared piezoelectric composite 33 Up to 203pC / N. The invention overcomes the limitation of the traditional preparation method and can reduce the production cost at the same time.

Description

technical field [0001] The invention belongs to the technical field of material preparation and relates to a preparation method of a ceramic / resin piezoelectric composite. Background technique [0002] Ceramic-resin piezoelectric composites have attracted much attention because of their superior properties (such as high coupling, low acoustic impedance, etc.) compared with single piezoelectric ceramics, and are widely used in the field of ultrasonic sensors. One of the characteristics of ceramic-resin piezoelectric composites is their stress transfer performance between "hard" ceramics and "soft" organic resins; It increases the effective acoustic impedance of the object and reduces the transmission of lateral vibrations, making the compound more suitable for underwater and medical applications. [0003] The 2-2 type structure is one of the most common connection methods of piezoelectric composites. The first number represents the connection dimension of the piezoelectric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/83C04B38/00
Inventor 刘岗严岩
Owner SOUTHWEST UNIV
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