Agranular type silver-based conductive ink and preparation method therefor and application thereof

A conductive ink, particle-free technology, applied in applications, inks, household appliances, etc., can solve the problems that restrict the commercial production of particle-free silver-based conductive ink, short shelf life, etc., to achieve easy industrial production, reduce heat treatment temperature, The effect of simple preparation method

Inactive Publication Date: 2016-03-23
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of particle-free conductive ink is that it can be decomposed at low temperature and has high conductivity, but its stability (short shelf life and low temperature and light-proof storage) restricts the further commercial production of particle-free silver-based conductive ink

Method used

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  • Agranular type silver-based conductive ink and preparation method therefor and application thereof
  • Agranular type silver-based conductive ink and preparation method therefor and application thereof
  • Agranular type silver-based conductive ink and preparation method therefor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the preparation of particle-free silver-based conductive ink

[0034] The raw material is composed of: (by weight percentage)

[0035] Silver acetate 45.6%, methanol-N,N-dimethylethanolamine (1:2) 40%, formic acid 14%, curdlan 0.4%;

[0036] The preparation method is: weigh the raw materials according to the above ratio, place silver acetate in methanol-N,N-dimethylethanolamine (1:2), oscillate ultrasonically for 5 minutes, mix well, add formic acid under stirring conditions, and react for 30 minutes , and then add curdlan to adjust the viscosity and surface tension of the ink, and filter to obtain a particle-free silver-based conductive ink. Its viscosity is 11cp and its surface tension is 40mN / m.

Embodiment 2

[0037] Embodiment 2: the preparation of particle-free silver-based conductive ink

[0038] The raw material is composed of: (by weight percentage)

[0039] Silver citrate 20%, methanol-N,N-dimethylethanolamine (1:2) 50%, ascorbic acid 29.5%, sodium hydroxymethylcellulose 0.5%;

[0040] The preparation method is as follows: weigh the raw materials according to the above ratio, place silver citrate in methanol-N,N-dimethylethanolamine (1:2), oscillate ultrasonically for 5 minutes, mix well, add ascorbic acid under stirring condition, and react After 30 minutes, sodium hydroxymethylcellulose was added to adjust the viscosity and surface tension of the ink, and filtered to obtain a particle-free silver-based conductive ink. Its viscosity is 14cp and its surface tension is 45mN / m.

Embodiment 3

[0041] Embodiment 3: the preparation of particle-free silver-based conductive ink

[0042] The raw material is composed of: (by weight percentage)

[0043] Silver nitrate 55%, methanol-isopropanolamine (1:2) 30%, ascorbic acid 14.7%, curdlan 0.3%;

[0044] The preparation method is as follows: weigh the raw materials according to the above ratio, place silver citrate in methanol-N,N-dimethylethanolamine (1:2), oscillate ultrasonically for 5 minutes, mix well, add ascorbic acid under stirring condition, and react After 30 minutes, sodium hydroxymethylcellulose was added to adjust the viscosity and surface tension of the ink, and filtered to obtain a particle-free silver-based conductive ink. Its viscosity is 10cp and its surface tension is 50mN / m.

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Abstract

The invention discloses agranular type silver-based conductive ink. The agranular type silver-based conductive ink is prepared from the following raw materials in percentage by weight: 20-55% of a metal silver salt, 30-50% of an alcohol amine solution, 10-30% of a reducing agent and 0.3-0.5% of an additive, wherein the metal silver salt is at least one of silver nitrate, silver citrate and silver acetate; the alcohol amine solution is prepared by mixing an alcohol solvent and an amine solvent in a volume ratio of 1: (0.5-3); the reducing agent is at least one of ascorbic acid and formic acid; and the additive is at least one of curdlan and carboxymethyl cellulose sodium. The invention further discloses a preparation method for the conductive ink and the application in preparing an RFID label antenna. The conductive ink disclosed by the invention is strong in stability, low in thermal treatment temperature, simple in preparation method and easy to realize industrial production.

Description

technical field [0001] The invention relates to a particle-free silver-based conductive ink, a preparation method and application thereof, and belongs to the technical field of printed electronics. Background technique [0002] Radio Frequency Identification (RFID) is a non-contact automatic identification technology based on the principle of radio frequency, which has been widely used in transportation, logistics, packaging, green food traceability and other fields. However, due to technical limitations, the current methods for preparing RFID tag antennas mainly include etching, electroplating and conductive ink printing. Among them, the etching method has problems such as high cost, complicated production process, low precision and environmental pollution; the main disadvantage of the electroplating method is that the cost of small batch production is expensive, but the equipment investment required for mass production is relatively high. Conductive ink printing can be di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/38
CPCC09D11/38C09D11/52
Inventor 张晶伊希斌王小军琚伟王修春
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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