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Conductive silver paste containing jade for touch screen and preparing method thereof

A conductive silver paste, touch screen technology, applied in conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problems of poor solder resistance, poor sintering performance, and low adhesion, etc. Achieve the effect of improving ohmic contact performance, improving market competitiveness, and improving screen printability

Inactive Publication Date: 2014-11-12
滁州恒恩光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics that 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 paste on the market has many shortcomings, not only containing lead , cadmium, etc. and are toxic, pollute the environment, and when used on conductive substrates, the adhesion is low, the soldering resistance is not good, and the sintering performance is poor

Method used

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Embodiment Construction

[0012] The conductive silver paste with jade added for a touch screen is characterized in that it is made of the following raw materials in parts by weight: silver powder 52, sodium borate 1.1, ceramic fiber 4, jade 3, sodium sulfide 0.5, ethyl phosphate 4.6, Sodium alginate 4.2, terephthaloyl chloride 3.2, diethyl ether 4, additives 30.

[0013] The auxiliary agent is made of the following raw materials in parts by weight: silicon dioxide 1.5, zinc oxide 4, nitrocellulose 1.9, hydrogenated castor oil 0.3, stearic acid 0.4, organosiloxane 0.1, turpentyl alcohol 16, butyl soluble anhydride Acetate 13 is prepared by putting silicon dioxide and zinc oxide into a calciner and calcining at 520-610°C for 1-2 hours, taking it out and cooling to room temperature, adding nitrocellulose and grinding for 20-40 minutes; dissolving butyl Anhydride acetate, turpentyl alcohol, and organosiloxane were stirred and mixed, reacted at 140-180°C for 2-3 hours, cooled to 80-100°C, added hydrogenate...

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Abstract

The invention discloses a conductive silver paste containing jade for a touch screen. The conductive silver paste is characterized by comprising, by weight, 45-55 parts of silver power, 1.1-2.3 parts of sodium borate, 2-4 parts of ceramic fiber, 3-5 parts of jade, 0.5-0.8 part of sodium sulphide, 2.4-4.6 parts of ethyl orthophosphate, 3.1-5.2 parts of sodium alga acid, 2.1-3.2 parts of paraphthaloyl chloride, 4-6 parts of diethyl ether and 30-40 parts of auxiliaries. Compared with the prior art, the conductive silver paste has the advantages that the volume resistance of the conductive silver paste is extremely low, and the force of adhesion to an ITO film and ohmic contact performance are improved. By the adoption of the production process and formula, the silk-screen printing property, surface hardness and erosion resistance of the silver paste can be improved, the service life of the silver paste can be prolonged, and the market competitiveness of the conductive silver paste is improved.

Description

technical field [0001] The invention relates to the field of conductive silver paste, in particular to a jade-added conductive silver paste for a touch screen 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 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 paste on the market has many shortcomings, not only containing lead , cadmium, etc., are toxic, pollute the environment, and when used on conductive substrates, have low adhesion, poor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B1/16H01B13/00
Inventor 匡民陈龙
Owner 滁州恒恩光电科技有限公司
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