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A preparation method of driving pump based on p(vdf-trfe) piezoelectric film

A technology of piezoelectric film and driving pumps, which is applied to pumps with flexible working elements, pumps, mechanical equipment, etc., can solve the problems of complex process and large driving voltage, and achieve the effect of simple operation and low cost

Active Publication Date: 2018-09-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The piezoelectric ceramic pumps, magnetic pumps, passive pumps, pumps made of the siphon principle, etc. currently being studied all have problems such as: complex process, high driving voltage, etc.

Method used

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  • A preparation method of driving pump based on p(vdf-trfe) piezoelectric film
  • A preparation method of driving pump based on p(vdf-trfe) piezoelectric film
  • A preparation method of driving pump based on p(vdf-trfe) piezoelectric film

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preparation example Construction

[0027] refer to figure 1 , the preparation method of the driven pump based on P(VDF-TrFE) piezoelectric film of the present invention comprises the following steps:

[0028] 1) Prepare P(VDF-TrFE) solution;

[0029] 2) Prepare P(VDF-TrFE) piezoelectric film 2 by P(VDF-TrFE) solution;

[0030] 3) Engraving and preparing the first support layer 1, the second support layer 4 and the channel layer 3 required to drive the pump;

[0031] 4) Graphical preparation of the first adhesive layer 6, the second adhesive layer 7 and the third adhesive layer 8 required to drive the pump;

[0032] 5) preparing a working electrode 5 on the P(VDF-TrFE) piezoelectric film 2 obtained in step 2);

[0033] 6) The first support layer 1, the first adhesive layer 6, the P (VDF-TrFE) piezoelectric film 2, the second adhesive layer 7, the channel layer 3, the third adhesive layer 8 and the second support layer 4 Align the connections sequentially from top to bottom, and then connect the test leads to...

Embodiment 1

[0043] The preparation method of the driven pump based on P(VDF-TrFE) piezoelectric thin film of the present invention comprises the following steps:

[0044] 1) Use an electronic balance to take 2 mg of P(VDF-TrFE) powder into a jar, then use a pipette to measure 10 ml of DMF, add it to the jar, and place the jar on a magnetic On the stirrer, stir at room temperature for 3 hours until the P(VDF-TrFE) powder is completely dissolved, and the solution is colorless and transparent;

[0045] 2) Filter the solution obtained in step 1) using a syringe filter with a pore size of 5 microns and a pore size of 1 micron, and then let it stand for 24 hours;

[0046] 3) Using glass as the substrate, spin-coat the solution on the surface of the glass substrate using a homogenizer, the speed of the homogenizer is 3000 rpm, and the homogenization time is 40 seconds;

[0047] 4) Place the glass sheet coated with the P(VDF-TrFE) solution on a hot stage at 75° and dry for 10 minutes to evaporat...

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PUM

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Abstract

The invention discloses a preparation method of a driving pump based on a P(VDF-TrFE) piezoelectric film. The preparation method comprises the following steps of 1) preparing a P(VDF-TrFE) solution; 2) preparing the P(VDF-TrFE) piezoelectric film through the P(VDF-TrFE) solution; 3) engraving a first supporting layer, a second supporting layer and a channel layer, required for preparing the driving pump; 4) imaging a first gluing layer, a second gluing layer and a third gluing layer, required for preparing the driving pump; 5) preparing a working electrode on the P(VDF-TrFE) piezoelectric film obtained the step 2); and 6) sequentially aligning and connecting the first supporting layer, the first gluing layer, the P(VDF-TrFE) piezoelectric film, the second gluing layer, the channel layer, the third gluing layer and the second supporting layer from top to bottom, and then connecting a test lead wire to obtain the driving pump based on the P(VDF-TrFE) piezoelectric film. The driving pump prepared according to the preparation method is relatively low in driving voltage and relatively simple in preparation process.

Description

technical field [0001] The invention relates to a manufacturing method of a piezoelectric pump, in particular to a manufacturing method of a driving pump based on a P (VDF-TrFE) piezoelectric film. Background technique [0002] In recent years, the application of piezoelectric materials in biomedicine is not a new topic. Some are already in production, such as our common biosensors, pacemakers, heart sounds, blood pressure monitors, ultrasound detectors, microfluidic drives, and other "wearable technology" aspects. [0003] Among them, microfluidic technology is widely used in biomedicine, and it is also a very important technology in biological detection and medical treatment. So research on microfluidic actuators is also very important. Piezoelectric ceramic pumps, magnetic pumps, passive pumps, pumps made of the siphon principle, etc., which are currently being studied, all have problems such as: complex process, high driving voltage and so on. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/04
CPCF04B43/046
Inventor 任巍赵蓓刘牧坤张志成
Owner XI AN JIAOTONG UNIV