Preparation method of pyroelectricity novel material

A new material and pyroelectric technology, which is applied in the field of preparation of new pyroelectric materials, can solve the problems of destroying the regular arrangement of dipoles, restricting film properties, and reducing the crystallinity of materials, so as to improve the pyroelectric properties and raw materials Inexpensive, high crystallinity effect

Inactive Publication Date: 2018-11-13
孝感寰誉新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Polyvinylidene fluoride is currently the only flexible pyroelectric material that has been widely used. However, during processing, a large number of defects are introduced into the crystal region, which destroys the regular arrangement of dipoles, thereby reducing the crystallinity of the material. Thin film performance is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a pyroelectric new material, the preparation technical scheme is as follows:

[0019] According to the number of parts by mass, 10.5 parts of polyvinylidene fluoride powder, 32 parts of ruthenium-doped crystal modifier, 25 parts of N,N-dimethylformamide, 30 parts of N,N-dimethyl Acetamide and 40 parts of dimethyl sulfoxide were added to the reaction kettle, the temperature was raised to 50°C, stirred for 40 minutes, and then ultrasonicated for 3 hours; then the completely dissolved and uniform solution was filtered to obtain a polymer solution; then 0.6 parts of sulfuric acid Triglycine crystal powder and 0.3 parts of 3-hydroxybenzoic acid isopropanol were added to the polymer solution, stirred for 60 minutes, and then ultrasonically dispersed for 40 minutes to obtain a mixed solution in which the powder was uniformly dispersed; drop the obtained mixed solution in the clean Wet film was obtained by using spin-coating technology on the silicon waf...

Embodiment 2

[0026] A preparation method of a pyroelectric new material, the preparation technical scheme is as follows:

[0027] In terms of parts by mass, 8.5 parts of polyvinylidene fluoride powder, 28 parts of ruthenium-doped crystal modifier, 20 parts of N,N-dimethylformamide, 25 parts of N,N-dimethyl Acetamide and 30-50 parts of dimethyl sulfoxide are added to the reaction kettle, the temperature is raised to 40°C, stirred for 30 minutes, and then ultrasonicated for 2 hours; then the completely dissolved and uniform solution is filtered to obtain a polymer solution; then 0.3 parts Add triglyceride sulfate crystal powder and 0.1 part of isopropanol 3-hydroxybenzoate into the polymer solution, stir for 50 minutes, and then ultrasonically disperse for 30 minutes to obtain a mixed solution in which the powder is uniformly dispersed; drop the obtained mixed solution on On the cleaned silicon wafer, use the spin-coating technique to obtain a wet film; place the obtained wet film in an oven...

Embodiment 3

[0034] A preparation method of a pyroelectric new material, the preparation technical scheme is as follows:

[0035] In terms of parts by mass, 12.5 parts of polyvinylidene fluoride powder, 36 parts of ruthenium-doped crystal modifier, 30 parts of N,N-dimethylformamide, 35 parts of N,N-dimethyl Acetamide and 50 parts of dimethyl sulfoxide were added to the reaction kettle, the temperature was raised to 60°C, stirred for 60 minutes, and then ultrasonicated for 5 hours; then the completely dissolved and uniform solution was filtered to obtain a polymer solution; then 0.8 parts of sulfuric acid Add triglyceride crystal powder and 0.5 part of 3-hydroxybenzoic acid isopropanol into the polymer solution, stir for 70 minutes, and then ultrasonically disperse for 50 minutes to obtain a mixed solution in which the powder is evenly dispersed; drop the obtained mixed solution in a clean Wet film was obtained by using spin-coating technology on the silicon wafer; the obtained wet film was...

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Abstract

The invention relates to the field of preparation of a novel material, in particular to a preparation method of a pyroelectricity novel material. The preparation method of the pyroelectricity novel material disclosed by the invention has the advantages that the preparation is simple; the raw materials are cheap; a used crystallization modifying agent has good blending effects with the material perse; through the technologies of low-temperature sharp cooling, radiation and the like, the material further realizes higher crystallization degree and higher polarity, so that the pyroelectricity performance of the material is improved; the application range of the material is expanded.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a method for preparing a new pyroelectric material. Background technique [0002] Infrared radiation is electromagnetic waves with wavelengths between visible light and microwaves, which cannot be detected by the human eye. To detect the existence of this radiation and measure its strength, it must be transformed into other physical quantities that can be detected and measured. An infrared detector is a device that detects the invisible infrared radiation of an object and converts it into a measurable signal or image. Pyroelectric material is a material that uses the pyroelectric effect of the material to detect infrared radiation energy. It does not require refrigeration, has high sensitivity, high detection rate, wide optical response, wide operating frequency, fast response speed, and no bias voltage. , low power consumption, good portability and other advantages, has aro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J7/12C08L27/16C08L77/02C08L43/00C08K5/134
CPCC08J5/18C08J7/123C08J2327/16C08J2443/00C08J2477/02C08K5/1345
Inventor 王大可张玲
Owner 孝感寰誉新材科技有限公司
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