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Application of graphene, spraying slurry for filter, preparation method of spraying slurry, and filter

A filter and graphene technology, applied in conductive coatings, waveguide devices, coatings, etc., can solve problems such as poor adhesion, low Q value, and high sintering temperature, so as to improve adhesion and improve insertion loss. Effect

Active Publication Date: 2020-08-28
江西苏煜新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the 5G filter sprayed with silver paste, which accounts for a large proportion of 5G filters, still has problems such as high insertion loss, low Q value, poor adhesion, and high sintering temperature, so it needs to be solved urgently

Method used

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  • Application of graphene, spraying slurry for filter, preparation method of spraying slurry, and filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a kind of spray slurry for filter, and its preparation method comprises the following steps:

[0021] S1. Weigh 1 kg of glass powder, 10 kg of organic carrier, 0.1 kg of film-forming aid, 0.1 kg of graphene, and 88.8 kg of silver powder, and set aside. Among them, graphene can use commercially available graphene products with a purity greater than 90%, an oxygen impurity content of less than 6%, and a hydrogen impurity content of less than 1%. 25m 2 / g, the average particle size is 0.5μm, and the conductivity is not less than 25000S / m; the glass powder is a commercially available Bi-B-Si-Zn-Ti-Zr system glass powder; the organic carrier is a commercially available ethyl cellulose system Organic carrier; film-forming aid is commercially available dodecyl alcohol ester.

[0022] S2. Place the above-mentioned weighed glass powder, organic carrier, film-forming aid, graphene, and silver powder in a planetary mixer for stirring and mixing, and then...

Embodiment 2

[0024] This embodiment provides a kind of spray slurry for filter, and its preparation method comprises the following steps:

[0025] S1. Weigh 3kg of glass powder, 20kg of organic carrier, 5kg of film-forming aid, 1kg of graphene, and 71kg of silver powder, and set aside. Among them, graphene can use commercially available graphene products with a purity greater than 90%, an oxygen impurity content of less than 6%, and a hydrogen impurity content of less than 1%. 25m 2 / g, the average particle size is 6μm, and the conductivity is not less than 25000S / m; the glass powder is commercially available Bi-B-Si-Zn-Ti-Zr system glass powder; the organic carrier is commercially available ethyl cellulose system organic Carrier; film-forming aid is commercially available dodecyl alcohol ester.

[0026] S2. Place the above-mentioned weighed glass powder, organic carrier, film-forming aid, graphene, and silver powder in a planetary mixer for stirring and mixing, and then place them in a ...

Embodiment 3

[0028] This embodiment provides a kind of spray slurry for filter, and its preparation method comprises the following steps:

[0029] S1. Weigh 1.2kg of glass powder, 12kg of organic carrier, 0.8kg of film-forming aid, 1kg of graphene, and 85kg of silver powder, and set aside. Among them, graphene can use commercially available graphene products with a purity greater than 90%, an oxygen impurity content of less than 6%, and a hydrogen impurity content of less than 1%. 25m 2 / g, the average particle size is 1μm, and the conductivity is not less than 25000S / m; the glass powder is commercially available Bi-B-Si-Zn-Ti-Zr system glass powder; the organic carrier is commercially available ethyl cellulose system organic Carrier; film-forming aid is commercially available dodecyl alcohol ester.

[0030] S2. Place the above-mentioned weighed glass powder, organic carrier, film-forming aid, graphene, and silver powder in a planetary mixer for stirring and mixing, and then place them i...

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Abstract

The invention is applicable to the technical field of filters, and provides application of graphene, a spraying slurry for a filter, a preparation method of the spraying slurry, and the filter. The spraying slurry for the filter comprises glass powder, an organic carrier, a coalescing agent, graphene and silver powder. According to the embodiment of the invention, the graphene is added into the spraying slurry to improve the conductivity of the spraying slurry, the adhesive force of the spraying slurry to a ceramic substrate and other properties significantly, so that the spraying slurry can be used for spraying of a 5G filter, and the problems of too high insertion loss, too low Q value, uneven adhesive force, relatively high sintering temperature and the like of the existing 5G filter are solved.

Description

technical field [0001] The invention belongs to the field of filter technology, and in particular relates to an application of graphene, a spray slurry for a filter, a preparation method thereof and a filter. Background technique [0002] The fifth generation mobile communication technology (5th Generation Mobile Networks, 5G) is the latest generation of cellular mobile communication technology. The rise of 5G has driven the development of its upstream and downstream industry chains, including higher requirements for the miniaturization and light weight of filters, making dielectric ceramic filters the only choice for 5G filters. [0003] Metallization is a key process in the production of filters. At present, metallization can use chemical plating, spraying, sputtering, screen printing and other processes to coat silver on the ceramic dielectric substrate, and achieve metallization on the ceramic surface after drying and sintering. . At present, the main 5G filter sprayin...

Claims

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Application Information

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IPC IPC(8): C09D5/24C09D7/61C09D101/28C09D5/38H01P1/20
CPCC08K2003/0806C09D5/24C09D5/38C09D101/28C09D7/61H01P1/20C08K13/02C08K3/40C08K3/042C08K3/08C08K5/103
Inventor 吴新正
Owner 江西苏煜新能源科技有限公司