High-temperature-resistance low-square-resistance conductive silver slurry and preparation method for the same

A technology of conductive silver paste and low square resistance, applied to conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problem of low adhesion, toxicity, and poor soldering resistance of conductive substrates and other problems, to achieve the effect of improving electrical conductivity and adhesion performance, broad application prospects, and excellent high temperature resistance

Active Publication Date: 2014-11-26
CHINALAND SOLAR ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics that the conductive silver paste needs to have are: good conductivity (antistatic property), strong adhesion, good printing adaptability and excellent solvent resistance. However, the existing conductive silver pastes on the market have many shortcomings, not only containing Lead, cadmium, etc. are poisonous and pollute the environment, and when used on conductive substrates, they have low adhesion, poor soldering resistance, and poor sintering performance

Method used

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Embodiment Construction

[0012] The described conductive silver paste with high temperature resistance and low square resistance and its preparation method is characterized in that it is made of the following raw materials in parts by weight: silver powder 47, yttrium oxide nano powder 1, thallium oxide nano powder 1.5, urea 1.7, Methyl cellulose 0.5, fatty alcohol sodium sulfate 0.4, medical stone 2, bone glue 5, alkyd resin 1, glycerin 2.7, coniferyl alcohol 2.4, additive 34, appropriate amount of water.

[0013] The auxiliary agent is made of the following raw materials in parts by weight: bismuth oxide 2, boron oxide 3, ethyl cellulose 0.9, sodium lauryl sulfate 0.3, dimethyl phthalate 0.4, lecithin 0.3, polysilicon Oxane 0.3, terpineol 24, the preparation method is to put bismuth oxide and boron oxide in a calciner and calcinate at 520-610°C for 1-2 hours, take it out and cool to room temperature, add ethyl cellulose and grind for 20-40 minutes; stir and mix dimethyl phthalate and terpineol, reac...

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Abstract

The invention discloses a high-temperature-resistance low-square-resistance conductive silver slurry and a preparation method for the same. The high-temperature-resistance low-square-resistance conductive silver slurry is made by the weight parts of the following ingredients: silver powder 45-55, yttria nanometer powder 1-2, thallium oxide nanometer powder 1.1-1.2, urea 1.5-2.7, methyl cellulose 0.5-0.9, fatty alcohol sodium sulfate 0.4-0.8, medical stone 2-4, pastern 3-5, alkyd 1-3, glycerinum 2.4-3.7, coniferyl alcohol 2.4-3.6, accessory ingredient 30-40 and water. The conductive silver slurry has excellent performance of resisting high temperature, can resist high temperature of being over 200 DEG, and uses the yttria nanometer powder and the thallium oxide nanometer powder to increase the conductivity and adherence of the conductive slurry and is very promising.

Description

technical field [0001] The invention relates to the field of conductive silver paste, in particular to a conductive silver paste with high temperature resistance and low square resistance and a preparation method thereof. Background technique [0002] Conductive silver paste refers to the silver paste printed on the conductive substrate to make it have the ability to conduct current and eliminate the accumulated static charge. It is generally printed on non-conductive substrates such as plastic, glass, ceramics or cardboard. It is made of conductive Filler, binder, solvent and additive composition. The characteristics that the conductive silver paste needs to have are: good conductivity (antistatic property), strong adhesion, good printing adaptability and excellent solvent resistance. However, the existing conductive silver pastes on the market have many shortcomings, not only containing Lead, cadmium, etc. are toxic and pollute the environment, and when used on conductive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B1/16H01B13/00
Inventor 郭万东孟祥法董培才陈伏洲
Owner CHINALAND SOLAR ENERGY
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