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Preparation method of spherical ag@t-znow powder and method and application of high dielectric polymer composite film

A composite film and polymer technology, which is applied in the parts of fixed capacitors and the dielectric of fixed capacitors, can solve the problem that quantum tunneling effect is difficult to meet the requirements of dielectric properties, achieve excellent electrical properties, improve capacitance, The effect of improving the dielectric properties

Active Publication Date: 2021-07-27
哈尔滨金氙科技有限公司
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  • Application Information

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Problems solved by technology

[0005] The present invention solves the technical problem that it is difficult to meet the dielectric performance requirements of modern microcapacitors and sensors due to the inability to produce quantum tunneling effect of spherical nano-silver as a reinforcing phase; and provides a preparation method of spherical Ag@T-ZnOw powder And the method and application of preparing high dielectric polymer composite film

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  • Preparation method of spherical ag@t-znow powder and method and application of high dielectric polymer composite film
  • Preparation method of spherical ag@t-znow powder and method and application of high dielectric polymer composite film
  • Preparation method of spherical ag@t-znow powder and method and application of high dielectric polymer composite film

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Embodiment 1

[0032] Example 1: The preparation method of spherical Ag@T-ZnOw powder in this example is carried out according to the following steps:

[0033] Step 1. Mix 0.25g of silver nitrate and 1.0g of polyvinylpyrrolidone, then add 100mL of ethylene glycol, heat up to 150°C while stirring, keep warm for 2h, and cool naturally to 70°C;

[0034] Step 2, then add 2g of tetraacicular zinc oxide, keep warm at 70°C and stir at 1500rmp for 2h, then cool to room temperature;

[0035] Step 3, then wash with ethanol solution with a volume concentration of 95%, centrifuge at 2000rpm for 3 times, and then dry at 80°C to obtain Ag@T-ZnOw powder, such as Figures 1a-1d As shown, it can be seen from the figure that the surface of the tetrapod-shaped zinc oxide is covered with spherical nano-silver particles, and the appearance is good.

[0036] The method for preparing a high dielectric polymer composite film from the spherical Ag@T-ZnOw powder prepared by the above method is completed through the ...

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Abstract

The invention discloses a method for preparing spherical Ag@T‑ZnOw powder and a method and application for preparing a high dielectric polymer composite film, and relates to a method for preparing spherical composite powder and its application. The invention aims to solve the technical problem that it is difficult to meet the dielectric performance requirements of modern microcapacitors and sensors due to the inability to produce the quantum tunneling effect because the spherical nanometer silver is used as an enhanced phase. The present invention uses silver nitrate, polyvinylpyrrolidone and ethylene glycol as raw materials to prepare spherical Ag, then adds tetrapod-shaped zinc oxide, washes, centrifuges, and dries after reaction to obtain spherical Ag@T‑ZnOw powder. Dielectric polymer composite films were prepared by film laying and sheet pressing. The spherical Ag@T‑ZnOw powder of the present invention can produce quantum tunneling effect and has excellent electrical properties. After adding polymer matrix, devices such as sensors and microcapacitors can be prepared, and has broad application prospects.

Description

technical field [0001] The present invention relates to a preparation method of spherical composite powder and its application; in particular to a preparation method of spherical Ag@T-ZnOw powder and a method and application of high dielectric polymer composite film; spherical Ag@T-ZnOw powder The body is used to make microcapacitors and sensor devices. Background technique [0002] With the rapid development of electronic information technology and nanotechnology, embedded capacitors have been widely used in various microelectronic systems. Among them, the miniaturization and weight reduction of electronic components have put forward higher requirements for the integration, safety and life of the devices. It has become the development trend of modern dielectric materials to prepare composite materials with high dielectric constant and low electrical loss based on polymer matrix. [0003] Dielectric materials store energy in the form of electrostatics and have very importa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K7/18C08K7/08C08J5/18C08L75/04H01G4/18
CPCC08J5/18C08J2375/04C08K7/08C08K7/18C08K9/10C08K2201/001C08K2201/011H01G4/18
Inventor 翁凌罗金玉关丽珠张笑瑞刘立柱
Owner 哈尔滨金氙科技有限公司
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