A kind of conductive paste organic carrier and its preparation and application

A technology of organic carrier and conductive silver paste, which is applied in the field of composite material preparation, can solve the problems of toxic resistivity of volatile products, high sintering temperature of conductive silver paste, poor volatilization level, etc., to improve rheological properties, printing performance, and raw material price Inexpensive, the effect of changing the vapor pressure

Active Publication Date: 2022-12-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the deficiencies of the prior art, an organic carrier for conductive paste and its preparation and application are provided, which effectively solves the problems of high sintering temperature, poor volatilization level and volatile product of the existing conductive silver paste. Problems such as toxicity and high resistivity greatly improve the sintered surface quality of the slurry

Method used

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  • A kind of conductive paste organic carrier and its preparation and application
  • A kind of conductive paste organic carrier and its preparation and application
  • A kind of conductive paste organic carrier and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The organic vehicle for the conductive paste of the present embodiment and its preparation and application are carried out as follows:

[0039] (1) Weigh 16g each of n-hexanol, diethylene glycol butyl ether acetate, and terpineol according to the mass ratio of 1:1:1, put them in a beaker and stir on a magnetic stirrer to make a uniform solvent.

[0040] (2) Weigh 3 g of polyvinylpyrrolidone (molecular weight: 1,300,000) and add it to the prepared solvent, place it on a magnetic stirrer and stir for 10 h until the PVP is completely dissolved in the solvent to obtain a viscous transparent liquid.

[0041] (3) Weigh 1g of castor oil and add it to the viscous liquid, place it on a magnetic stirrer until it is evenly stirred to obtain the required conductive paste organic vehicle.

[0042](4) Mix the prepared organic carrier and silver powder according to the mass ratio of 1:2 (the silver powder includes spherical silver powder with an average grain size of 1 μm and flake si...

Embodiment 2

[0045] The preparation method of the novel intermetallic compound based on high-entropy alloy diffusion welding in this embodiment is carried out in the following steps:

[0046] (1) Weigh 24g of n-hexanol and diethylene glycol butyl ether acetate according to the mass ratio of 1:1, put them in a beaker and stir on a magnetic stirrer to make a uniform solvent.

[0047] (2) Weigh 3 g of polyvinylpyrrolidone (molecular weight: 1,300,000) and add it to the prepared solvent, place it on a magnetic stirrer and stir for 10 h until the PVP is completely dissolved in the solvent to obtain a viscous transparent liquid.

[0048] (3) Weigh 1g of castor oil and add it to the viscous liquid, place it on a magnetic stirrer until it is evenly stirred to obtain the required conductive paste organic vehicle.

[0049] (4) Mix the prepared organic carrier and silver powder according to the mass ratio of 1:2 (the silver powder includes spherical silver powder with an average grain size of 1 μm an...

Embodiment 3

[0052] The preparation method of the novel intermetallic compound based on high-entropy alloy diffusion welding in this embodiment is carried out in the following steps:

[0053] (1) Weigh 48g of n-hexanol, place it in a beaker and stir on a magnetic stirrer to make a uniform solvent.

[0054] (2) Weigh 3 g of polyvinylpyrrolidone (molecular weight: 1,300,000) and add it to the prepared solvent, place it on a magnetic stirrer and stir for 10 h until the PVP is completely dissolved in the solvent to obtain a viscous transparent liquid.

[0055] (3) Weigh 1g of castor oil and add it to the viscous liquid, place it on a magnetic stirrer until it is evenly stirred to obtain the required conductive paste organic vehicle.

[0056] (4) Mix the prepared organic carrier and silver powder according to the mass ratio of 1:2. The silver powder includes spherical silver powder with an average grain size of 1 μm and flake silver powder with a size of 1-5 μm and a thickness of 500 nm, and it...

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Abstract

The invention discloses an organic carrier for conductive paste and its preparation and application; in particular, an organic carrier suitable for low-temperature sintering conductive silver paste and its preparation and application. One of the preferred versions of the organic carrier includes 5.77% polyvinylpyrrolidone, 30.77% n-hexanol (1-Hexanol), 30.77% diethylene glycol butyl ether acetate, 30.77% terpineol and 1.92% castor oil. The invention solves the problems of high sintering temperature and cracks on the volatile surface of the existing conductive silver paste, and the raw materials are cheap and easy to purchase; the prepared organic carrier has moderate viscosity and is applied to the conductive silver paste. The rheological property of the paste is good and the printing performance Good and high resolution, and can achieve low temperature sintering, high electrical conductivity after sintering, and smooth surface, which provides the necessary conditions for the application of high resolution, high electrical conductivity solar grid panels, etc. It can be used in the preparation of high-resolution solar grid panels, etc.

Description

technical field [0001] The invention relates to an organic carrier of conductive paste and its preparation and application; it belongs to the technical field of composite material preparation. Background technique [0002] The 21st century is an era of rapid development of the electronic information manufacturing industry. Some smart devices, such as smart phones, tablet computers, wearable watches and other electronic products are ubiquitous. The emergence of these devices has driven the development of the information industry and the integrated circuit industry. Promote the research and development of related new materials. As the key conductive functional material of such electronic components, conductive silver paste mainly plays the role of conductive wiring and electrical connection in these electronic components, and its development and application have also attracted widespread attention. [0003] Conductive silver paste is a viscous or paste-like suspension system ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B13/00
CPCH01B1/22H01B13/00
Inventor 刘文胜唐思危柳萧伍思远陈柏杉黄宇峰马运柱
Owner CENT SOUTH UNIV
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