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Water-based roll printing nickel paste special for MLCC and preparation method of water-based roll printing nickel paste

A technology of nickel paste and roll printing, applied in the field of special roll printing nickel paste for water-based MLCC and its preparation, which can solve the problem of high content of volatile organic compounds

Inactive Publication Date: 2021-09-24
佛山市顺德区百锐新电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water-based MLCC special roll printing nickel paste and its preparation method, to solve the problems in the prior art that the MLCC roll printing nickel paste contains organic solvents and has a high content of volatile organic compounds

Method used

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  • Water-based roll printing nickel paste special for MLCC and preparation method of water-based roll printing nickel paste

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of embodiment 1 water-based MLCC special roller printing nickel paste, comprises the following steps:

[0032] S1, mix 1 part of hydroxyethyl cellulose, 0.5 part of hydroxypropyl cellulose, 0.5 part of hydroxypropyl methyl cellulose with 98 parts of pure water, heat to 45°C, and use a high-speed shear disperser at a speed of 1200rpm After stirring for 30 minutes in the middle, a water-soluble resin binder with a solid content of 2% was obtained;

[0033] S2, 80.5 parts of nickel powder, 18.5 parts of purified water, and 1 part of additives were stirred in a high-speed shear disperser at a speed of 1200rpm for 5 minutes, and then transferred to a 3000rpm nano-sand mill for grinding for 15 minutes to obtain a nano-nickel dispersion;

[0034] S3, 70 parts of nano-barium titanate, 2 parts of nano-magnesia, 2 parts of nano-yttrium oxide, 25 parts of pure water, and 1 part of dispersant were stirred in a high-speed shear disperser at a speed of 1200rpm ...

Embodiment 2

[0037] Embodiment 2, the preparation method of water-based MLCC special roller printing nickel paste, comprises the following steps:

[0038] S1, mix 1 part of hydroxyethyl cellulose, 0.5 part of hydroxypropyl cellulose, 0.5 part of hydroxypropyl methyl cellulose with 98 parts of pure water, heat to 45°C, and use a high-speed shear disperser at a speed of 1200rpm After stirring for 30 minutes in the middle, a water-soluble resin binder with a solid content of 2% was obtained;

[0039] S2, 82.5 parts of nickel powder, 16.5 parts of pure water, and 1 part of additives were stirred in a high-speed shear disperser at a speed of 1200 rpm for 5 minutes, and then transferred to a 3000 rpm nano-sand mill for grinding for 15 minutes to obtain a nano-nickel dispersion;

[0040] S3, 70 parts of nano-barium titanate, 2 parts of nano-magnesia, 2 parts of nano-yttrium oxide, 25 parts of pure water, and 1 part of dispersant were stirred in a high-speed shear disperser at a speed of 1200rpm f...

Embodiment 3

[0043] The preparation method of embodiment 3 water-based MLCC special roller printing nickel paste, comprises the following steps:

[0044] S1, mix 1 part of hydroxyethyl cellulose, 0.5 part of hydroxypropyl cellulose, 0.5 part of hydroxypropyl methyl cellulose with 98 parts of pure water, heat to 45°C, and use a high-speed shear disperser at a speed of 1200rpm After stirring for 30 minutes in the middle, a water-soluble resin binder with a solid content of 2% was obtained;

[0045] S2, 84.5 parts of nickel powder, 14.5 parts of pure water, and 1 part of additives were stirred in a 1200rpm high-speed shear disperser for 5 minutes evenly, and then transferred to a 3000rpm nano-sand mill for grinding for 15 minutes to obtain a nano-nickel dispersion;

[0046] S3, 70 parts of nano-barium titanate, 2 parts of nano-magnesia, 2 parts of nano-yttrium oxide, 25 parts of pure water, and 1 part of dispersant were stirred in a high-speed shear disperser at a speed of 1200rpm for 5 minut...

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Abstract

The invention discloses water-based roller printing nickel paste special for an MLCC. The special roller printing nickel paste comprises the following raw materials in parts by weight: 5-18 parts of a water-soluble adhesive, 60-90 parts of a nickel dispersion liquid, 1-15 parts of an inorganic filler dispersion liquid, 1-5 parts of an auxiliary agent and 1-15 parts of a curing agent, the water-soluble adhesive is prepared from water-soluble resin and purified water in a ratio of 2:90 98; the nickel dispersion liquid is prepared from nickel powder and purified water according to the ratio of 80:15 20; and the inorganic filler dispersion liquid is prepared from inorganic filler and purified water in the ratio of 74:20 30. Compared with traditional MLCC nickel paste, the VOCs content is greatly reduced, other performance is equivalent to the performance of an MLCC prepared from the traditional nickel paste, and the capacitance value of the MLCC is increased through the prepared nickel paste.

Description

technical field [0001] The invention relates to a roll printing conductive nickel paste for MLCC, in particular to a water-based MLCC special roll printing nickel paste and a preparation method thereof. Background technique [0002] Chip Multilayer Ceramic Capacitors (MLCC) have a wide range of application voltage and capacitance, and have the advantages of stable operation, wide range, small dielectric loss, small size, and low price. They are widely used in consumer electronics, industry, communications, automobiles and Military industry and other fields are currently one of the chip components with the largest output and fastest development. [0003] Ceramic capacitors are less affected by temperature, have a long service life, and are miniaturized, accounting for 60% of the entire capacitor market, while MLCCs account for 90% of ceramic capacitors; the sales of MLCCs in my country are increasing year by year, and the sales volume of MLCCs in 2018 will reach 3 trillion. I...

Claims

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Application Information

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IPC IPC(8): H01G4/008H01G4/12H01G4/30
CPCH01G4/30H01G4/008H01G4/1209
Inventor 何伟雄黄大凯
Owner 佛山市顺德区百锐新电子材料有限公司
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