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

A piezoelectric composite material and high solid phase technology, applied in the field of 3D printing, can solve the problems of low solid phase content and easy sedimentation of slurry, and achieve the effect of small solidification depth, preventing rapid sedimentation, and reducing the difference in refractive index

Active Publication Date: 2022-07-12
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 material paste and preparation method thereof and manufacturing method of structural member
  • High solid content 0-3 type piezoelectric composite material paste and preparation method thereof and manufacturing method of structural member
  • High solid content 0-3 type piezoelectric composite material 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 material structure, comprising the following steps, such as figure 1 :

[0047] S1: Create a three-dimensional model of the corresponding structural part that needs to be formed;

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

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

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

[0051] S5: start printing, project the mask image of the two-dimensional cross-sectional slice of the three-dimensional model to the upper surface of the forming platform paste, and use a 355nm ultraviol...

Embodiment 1

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

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

[0079] Specific steps are as follows:

[0080] S21: Dry commercial PZT powder at 80°C for 12h 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 water bath at 65°C, magnetically stirred for 2 hours, washed with absolute ethanol for 3 times, centrifuged, and dried under vacuum at 100°C for 12 hours;

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

Embodiment 2

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

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

[0096] Specific steps are as follows:

[0097] S21: Dry commercial PZT powder at 80°C for 12h 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 an Erlenmeyer flask, heated in a water bath at 75°C, magnetically stirred for 3 hours, washed three times with absolute ethanol, centrifuged, and dried under vacuum at 100°C for 12 hours;

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

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Abstract

The invention discloses a high solid content 0-3 type piezoelectric composite material paste, a preparation method thereof, and a manufacturing method of a structural part. The paste preparation method comprises the following steps: after drying PZT ceramic powder, use oleic acid for surface treatment The modified PZT powder is obtained by graft modification; the acrylic resin and the high-refractive-index monomer are mixed, and the photosensitive resin is obtained by ultrasonic stirring; the photosensitive resin and the photoinitiator are uniformly mixed to obtain a uniform resin solution; the modified PZT powder, uniform The resin solution and the dispersant are stirred and mixed to obtain a piezoelectric composite material paste. The invention increases the solid phase content of the powder, greatly enhances the piezoelectric performance of the molded part, and reduces the difficulty of polarization.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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