Polymer dielectric electrostatic polarization device and electrostatic polarization method thereof

A dielectric and polymer technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, etc.

Active Publication Date: 2012-10-17
SHANGHAI DAGONG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Needle-plate electrode DC corona in an unstable environment, a slightly higher voltage will

Method used

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  • Polymer dielectric electrostatic polarization device and electrostatic polarization method thereof
  • Polymer dielectric electrostatic polarization device and electrostatic polarization method thereof
  • Polymer dielectric electrostatic polarization device and electrostatic polarization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]The electrode system structure of the electrostatic polarizer of the present invention is as follows: on the electric conductor rod or electric conductor pipe of appropriate length, the present embodiment is that the needle-shaped electrode array 2 is arranged on the appropriate circumferential angle range on the metal pipe 1, and A firm electric conductor cover is coaxially installed on the periphery of the tube 1. In this embodiment, the electric conductor cover is a metal cover 3. Both the metal cover 3 and the metal tube 1 are fixed on the anti-discharge high-voltage insulator 4. The metal cover 3 faces the needle-shaped One side of the electrode array 2 is opened and an electric conductor grid is set. The electric conductor grid in this embodiment is a metal grid 5, and the metal grid 5 is also fixed on the anti-discharge high-voltage insulator 4 between the metal cover 3 and the metal grid 5 'On, and with the metal cover 3 and the metal tube 1 and needle electrode a...

Embodiment 2

[0036] On the basis of the polarization device in Example 1, the three-layer composite membrane of 12 μm thick PFA non-porous membrane / 220 μm thick ePTFE porous membrane / 12 μm thick PFA non-porous membrane is polarized and deposited under the same conditions as in Example 1 Aluminum electrodes, stable polarization process, quiet, no light, no sparks. The quasi-static piezoelectric constant d of the space-charge porous piezoelectric film thus prepared 33 1240pC / N.

Embodiment 3

[0038] On the basis of the polarizing device in Example 1, a three-layer composite membrane of 15 μm thick FEP non-porous membrane / 220 μm thick ePTFE porous membrane / 15 μm thick FEP non-porous membrane is polarized and deposited under the same conditions as in Example 1 Aluminum electrodes, stable polarization process, quiet, no light, no sparks. The quasi-static piezoelectric constant d of the space-charge porous piezoelectric film thus prepared 33 1280pC / N.

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Abstract

The invention relates to a polymer dielectric electrostatic polarization device and an electrostatic polarization method thereof which belong to the technical field of polarization, and particularly relate to a polarization method of a hole in a pole body and a polarization device. According to the polymer dielectric electrostatic polarization device, needle-shaped electrode arrays are lined on an electric conductive rod or an electric conductive pipe, electric conductive hoods are coaxially arranged on the periphery of the electric conductive rod or the electric conductive pipe; discharge high-voltage insulators are arranged between the electric conductive hoods and the electric conductive rod or the electric conductive pipe; one surfaces of the electric conductive hoods which face the needle-shaped electrode arrays are provided with openings and are provided with electric conductive grids; the discharge high-voltage insulators are arranged between the electric conductive grids and the electric conductive hoods, and the electrode system basis of a grid voltage-type electrostatic polarizer is formed. The invention also provides the electrostatic polarization method of the polymer dielectric electrostatic polarization device.

Description

technical field [0001] The invention relates to a polymer dielectric electrostatic polarization device and an electrostatic polarization method thereof, belonging to the technical field of polarization, in particular to a polarization method and a polarization device of a hole electret. Background technique [0002] Usually electrostatic electret methods such as: electrospinning, corona discharge, triboelectrification, thermal polarization, low-energy electron beam bombardment, etc., among which, corona discharge method is the most commonly used. CN1528500 uses corona or electron beam to charge polytetrafluoroethylene electret porous filter membrane, "Acta Physica" 3705,55 (7), 2006, CN1845353A and CN1933206A reported that the electret method of the polymer with hole structure is corona Charging, contact charging or electron beam charging, among them, the corona charging method is more important. "Functional Materials" 741, Volume (38), 2007 Supplement reported the use of p...

Claims

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Application Information

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IPC IPC(8): H01L41/22
Inventor 宫香山张晓青宫继业
Owner SHANGHAI DAGONG NEW MATERIALS
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