Ferroelectric polymer electric card material and preparation method thereof

A ferroelectric polymer, electric card technology, applied in electrolytic coatings, manufacturing/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, etc., can solve the refrigeration power of electric card devices. The problems of low density, difficult heat conduction of electric card materials, and low electric card strength can achieve the effect of improving the strength of electric cards, solving heat conduction difficulties, and improving the strength of electric cards.

Inactive Publication Date: 2018-06-22
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide a ferroelectric polymer electric card material and its preparation method, wherein the key ferroelectric polymer morphology, structure, internal microscopic connection structure (especially the corresponding microscopic mechanism of heat conduction), and the overall process design of the corresponding preparation method and the conditions and parameters of each key step are improved. Compared with the existing technology, it can effectively solve the problem of low strength of ferroelectric polymer electric cards To solve the problems of difficult heat conduction in the card material and low cooling power density of the electric card device, the present invention controls the polyvinylidene fluoride-based ferroelectric polymer electric card material to form a nanowire array, and embeds the nanowire array in t...

Method used

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  • Ferroelectric polymer electric card material and preparation method thereof
  • Ferroelectric polymer electric card material and preparation method thereof
  • Ferroelectric polymer electric card material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A. Preparation of porous AAO template, the specific steps are as follows:

[0047] a. Anneal the aluminum foil at 400 degrees Celsius, and the holding time is 2 hours, which is conducive to the subsequent formation of a regular pore structure;

[0048] b. Ultrasonic cleaning of aluminum foil in toluene and ethanol for 10 minutes;

[0049] c. Using the steel plate as the cathode and the aluminum foil as the anode, perform electrochemical polishing in a solution with a volume ratio of perchloric acid and ethanol of 1:4, with a voltage of 20V;

[0050] d. Carry out one oxidation in 0.3mol / L oxalic acid with the polished aluminum foil as the anode and the steel plate as the cathode, the voltage is 60V, and the time is 1 hour;

[0051] e. Soak the aluminum foil after the primary oxidation in a mixed solution of 6wt% phosphoric acid and 1.8wt% chromic acid, place it in an oven at 80 degrees Celsius to remove the surface aluminum oxide formed by the primary oxidation, and the...

Embodiment 2

[0061] In step A, the primary oxidation voltage is 25V, and the reaction time is 6 hours; the secondary oxidation voltage is 25V, and the reaction time is 20 hours, and the rest are the same as in Example 1.

Embodiment 3

[0063] In step A, the electrochemical reaction solution is 0.3mol / L phosphoric acid solution, the primary oxidation voltage is 195V, and the reaction time is 6 hours; the secondary oxidation voltage is 195V, and the reaction time is 20 hours, and the rest are the same as in Example 1.

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Abstract

The invention discloses a ferroelectric polymer electric card material and a preparation method thereof, wherein the ferroelectric polymer electric card material is a polyvinylidene fluoride (PVDF) based ferroelectric polymer electric card nanowire array; the PVDF based ferroelectric polymer electric card nanowire array is also embedded into a porous anodic aluminum oxide (AAO) template. Accordingto the preparation method, a PVDF based ferroelectric polymer electric card material is controlled to form the nanowire array; the nanowire array is also embedded into the porous anodic aluminum oxide AAO template; the ferroelectric polymer nanowire array is prepared in the porous anodic aluminum oxide AAO template through a solution infiltration method, and through improving the morphology, structure, internal microscopic joint construction and the like of a key ferroelectric polymer, in comparison with the prior art, the problems that the strength of a ferroelectric polymer electric card islow, the heat conduction in the electric card material is difficult and the refrigeration power density of an electric card device is low and the like are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and more specifically relates to a ferroelectric polymer electric card material and a preparation method thereof. The prepared electric card material can be used in a new solid-state refrigeration technology, and particularly relates to a ferroelectric polymer electric card nanowire array and its preparation method. Background technique [0002] Refrigeration technology is widely used in industry, military, medical and daily life. At present, the vast majority of refrigeration equipment uses traditional compression refrigeration technology, but this refrigeration method has problems such as low refrigeration efficiency and difficulty in miniaturization of equipment, and the refrigerant used in compression refrigeration has caused serious damage to the environment. People are urgently looking for new refrigeration technology. Way. [0003] Electric card refrigeration is a new type of refri...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08K3/22B82Y40/00
CPCB82Y40/00C08K3/22C08K2003/2227C08L27/16C04B41/009C04B41/4842C04B41/83C09D127/16C04B35/10C04B38/00C04B41/463C08J3/11C04B35/63436C04B35/6344C04B35/64C08J2327/16F25B2321/001C08J2327/12C04B2235/3217C04B2235/48C04B2235/616C04B2235/6567F25B21/00C08J2327/18C25D11/045B29C66/7422B29C44/1209C25D11/18B29C67/202H10N30/098H10N30/857
Inventor 张光祖胡昭耀翁灵兮姜胜林李明钰
Owner HUAZHONG UNIV OF SCI & TECH
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