Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing high dielectric polymer composite film

A technology of dielectric polymer and composite film, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., to achieve the effect of good application prospects

Inactive Publication Date: 2014-08-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the control of the interface state and interface stability in the multiphase structure is still a difficult point in the preparation technology of this high dielectric composite film.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing high dielectric polymer composite film
  • Method for preparing high dielectric polymer composite film

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0059] ①Dissolve polyvinylidene fluoride in N, N dimethylformamide solvent, the concentration of polyvinylidene fluoride is 1 mol / liter, to form a polyvinylidene fluoride solution for LB film preparation;

[0060] ② Use a micro-sampler to extract 400 μl of the polyvinylidene fluoride solution obtained in ①, and add it to the surface of the ultrapure water in the LB membrane tank, and the polyvinylidene fluoride spreads on the gas / liquid interface and forms an ordered film;

[0061] ③Control the sliding barrier of the LB film equipment to compress the polyvinylidene fluoride film at a speed of 0.5 mm / min to a film pressure of 15 mN / m, and transfer the polyvinylidene fluoride film to the aluminum substrate by vertical film formation. The film formation rate is 0.1 mm / min;

[0062] 4. Barium titanate nanoparticles and ferric chloride are dissolved in n-butanol / ultrapure aqueous solution, the concentration of barium titanate nanoparticles is 30 mg / ml, and the concentration of ferr...

example 2

[0069] In Example 2, the polymer is polyimide, and the rest of the materials and manufacturing process are similar to those in Embodiment 1, thereby obtaining polyimide / polythiophene / barium titanate nanoparticles / polyimide high-dielectric composite film.

example 3

[0071] In Example 3, the polymer is polystyrene, and the rest of the materials and manufacturing process are similar to those in Embodiment 1, so as to obtain polystyrene / polythiophene / barium titanate nanoparticles / polystyrene high-dielectric composite film.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
concentrationaaaaaaaaaa
Login to View More

Abstract

The embodiment of the invention discloses a method for preparing a high dielectric polymer composite film. The method comprises the following steps: preparing a polymer ultrathin film on a substrate by using an LB film method, preparing an oxidizing agent / nano-particle composite film on the surface of the polymer ultrathin film by using a spraying method, then obtaining a conductive polymer nano-particle composite film on the surface of the polymer ultrathin film by using a chemical vapor phase polymerization and deposition method, depositing the other layer of polymer thin film on the composite film by using the LB film method, and then performing heating treatment on the composite film to obtain the high dielectric polymer composite film. The composite film prepared by the method is the high dielectric polymer composite film of a polymer dielectric / nano-particle dielectric / conductive polymer / polymer dielectric, has a characteristic of self-supporting, and is very widely applied to high-energy density capacitors and other energy storage devices.

Description

technical field [0001] The invention relates to the technical field of high dielectric thin film materials, in particular to a method for manufacturing high dielectric polymer composite thin films. Background technique [0002] High dielectric thin film materials have very broad application prospects in new energy storage devices and high-power energy storage systems. High dielectric thin film materials mainly include inorganic ceramic materials and high dielectric polymer materials. Inorganic ceramic materials have the advantage of high dielectric constant, but their mechanical properties are poor and it is not easy to form a large-area film. Polymer dielectric materials have the advantages of good processability and self-support, but the dielectric constant of ordinary polymer dielectric materials is not high. How to effectively improve the dielectric constant of polymer dielectric materials is the current dielectric material Hotspots in the research field. [0003] B...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/12B32B27/30B32B27/28C08G61/12
Inventor 杨亚杰袁文涛杨文耀杨晓洁徐建华蒋亚东
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com