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High-solid-content 0-3 type piezoelectric composite paste and preparation method thereof, and manufacturing method of structural member

A piezoelectric composite material and high solid phase technology, which is applied in the field of 3D printing, can solve the problems of easy settlement and low solid phase content of slurry, and achieve the effects of small curing depth, increased curing thickness, and reduced refractive index difference

Active Publication Date: 2021-08-27
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For traditional solution blending molding, cold / hot pressing molding and other technologies that cannot quickly process complex structure 0-3 piezoelectric composite materials with high precision, low cost, and high piezoelectric constant, and piezoelectric composites prepared by existing 3D printing technology Problems such as low solid phase content and easy settlement of electric composite material slurry

Method used

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  • High-solid-content 0-3 type piezoelectric composite paste and preparation method thereof, and manufacturing method of structural member
  • High-solid-content 0-3 type piezoelectric composite paste and preparation method thereof, and manufacturing method of structural member
  • High-solid-content 0-3 type piezoelectric composite paste and preparation method thereof, and manufacturing method of structural member

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preparation example Construction

[0046] The first object of the present invention is to provide a method for preparing a high solid content 0-3 type piezoelectric composite structure, comprising the following steps, such as figure 1 :

[0047] S1: Create a 3D model of the corresponding structural parts that need to be formed;

[0048] S2: preparing a piezoelectric composite material paste for photocuring molding;

[0049] S3: Put the photosensitive paste prepared in S2 into the trough of the SLA printer, adjust the height of the scraper, trough, and forming platform according to the printing requirements, and perform trial scraping to ensure that the printing requirements are met;

[0050] S4: Import the 3D model created in S1 into corresponding software for slicing processing;

[0051] S5: Start printing, project the mask image of the two-dimensional cross-section slice of the three-dimensional model onto the upper surface of the paste on the forming platform, and use a 355nm ultraviolet light source to cu...

Embodiment 1

[0077] S1: Establish a three-dimensional model of 0-3 piezoelectric composite materials;

[0078] S2: preparing a piezoelectric composite material paste for photocuring molding;

[0079] Specific steps are as follows:

[0080] S21: Dry the commercial PZT powder at 80°C for 12 hours to remove surface adsorbed water;

[0081] S22: Use oleic acid to modify the surface of the dried PZT powder: first prepare a mixed solution of deionized water and absolute ethanol with a mass ratio of 2:18; add piezoelectric ceramic powder and oil with a mass ratio of 20:1 acid, mixed in a Erlenmeyer flask, heated in a 65°C water bath, magnetically stirred for 2 hours, washed with absolute ethanol for 3 times, centrifuged, and vacuum-dried at 100°C for 12 hours;

[0082] S23: uniformly mix the photosensitive resin and the photoinitiator with a mixer to prepare a uniform resin solution, and then vacuumize at room temperature for 0.5 h. Wherein the photoinitiator quality accounts for 4wt% of the t...

Embodiment 2

[0094] S1: Establish a three-dimensional model of 0-3 piezoelectric composite materials;

[0095] S2: preparing a piezoelectric composite material paste for photocuring molding;

[0096] Specific steps are as follows:

[0097] S21: Dry the commercial PZT powder at 80°C for 12 hours to remove surface adsorbed water;

[0098] S22: Use oleic acid to modify the surface of the dried PZT powder: first prepare a mixed solution of deionized water and absolute ethanol with a mass ratio of 2:18, and add piezoelectric ceramic powder and oil with a mass ratio of 20:1 acid, mixed in a Erlenmeyer flask, heated in a 75°C water bath, magnetically stirred for 3 hours, washed 3 times with absolute ethanol, centrifuged, and vacuum-dried at 100°C for 12 hours;

[0099] S23: uniformly mix the photosensitive resin and the photoinitiator with a mixer to prepare a uniform resin solution, and then vacuumize at room temperature for 0.5 h. Wherein the photoinitiator quality accounts for 3wt% of the t...

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Abstract

The invention discloses 0-3 type piezoelectric composite paste with high solid content, a preparation method of the paste and a manufacturing method of a structural member. The preparation method of the paste comprises the following steps: drying PZT ceramic powder, and performing surface grafting modification by using oleic acid to obtain modified PZT powder; mixing acrylic resin and a high-refractive-index monomer, and performing ultrasonic stirring to obtain photosensitive resin; uniformly mixing the photosensitive resin and a photoinitiator to prepare a uniform resin solution; and stirring and mixing the modified PZT powder, the uniform resin solution and a dispersing agent, and conducting uniform mixing to obtain the piezoelectric composite paste. The solid phase content of the paste is increased, the piezoelectric property of a formed part is greatly enhanced, and polarization difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a high solid phase content 0-3 type piezoelectric composite material paste, a preparation method thereof, and a manufacturing method of structural parts. Background technique [0002] As a new functional material, piezoelectric ceramics develop very rapidly and are widely used in many fields such as sensing, voltage transformation, underwater acoustic transducer, and ultrasound. However, single-phase materials have insurmountable shortcomings in some application fields, such as the high density of piezoelectric ceramics on underwater acoustic transduction materials, poor matching with underwater acoustics, high brittleness, and brittleness, and are easily broken by large impacts. Therefore, people turn to composite materials to try to find new solutions, so that piezoelectric ceramic polymer composites are developed rapidly as a new type of piezoelectric materials...

Claims

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Application Information

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IPC IPC(8): C04B26/04C04B40/00C04B20/02B28B1/00B33Y10/00B33Y70/10
CPCC04B26/04C04B40/0017C04B20/023B33Y70/10B33Y10/00B28B1/001C04B2111/00181C04B18/023
Inventor 王莉王科施森王宁张林涛卢秉恒
Owner XI AN JIAOTONG UNIV
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