Photosensitive silver slurry for concentration electrode and method for preparing same

A bus electrode and photosensitive technology, applied in the field of photosensitive silver paste for bus electrode and its preparation, can solve the problems of unevenness and discontinuous silver distribution, and achieve the effect of uniform silver distribution, small shrinkage rate and continuous electrode

Inactive Publication Date: 2006-12-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, the existing photosensitive silver paste also has the disadvantages of discontinuous and uneven silver distribution.

Method used

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  • Photosensitive silver slurry for concentration electrode and method for preparing same
  • Photosensitive silver slurry for concentration electrode and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A photosensitive silver paste for a bus electrode of a plasma display, comprising silver-coated glass powder with a particle size of 0.8-1 μm, nano-silver powder, black dye, photosensitive monomer, photoinitiator, organic solvent, and cellulose Resin and plasticizer, its weight proportion is (5~20%): (40~60%): (1~20%): (3~20%): (0.3~5%): (5~20 %): (5~20%): (1~2%), the above-mentioned silver-coated glass powder is coated with silver film on the outer surface of glass powder particles, and the photosensitive monomer is acrylate or methacrylate, The photoinitiator is one of benzoin and its derivatives, acetophenone and its derivatives or aromatic ketones, the organic solvent is a polar organic solvent with a boiling point above 200°C, and the plasticizer is a polar organic solvent containing a polar ester group. ester, the particle size of the glass powder in the above silver-coated glass powder is 400-600nm, and its formula composition includes: PbO 45%-80%, SiO 2 4~20%...

Embodiment 2

[0015] A preparation method for making the above-mentioned photosensitive silver paste: first prepare silver-coated glass powder and an organic vehicle respectively, and then prepare the photosensitive silver paste. The preparation of the above-mentioned silver-coated glass powder is based on the concentration of 10~20g / L AgNO 3 Stir 125ml of the solution, and add ammonia water until a brown precipitate is formed, then add ammonia water until the precipitate is completely dissolved to obtain a silver-ammonia complex solution, and then add hydrogen with a concentration of 5 to 10 g / L in the silver-ammonia complex solution Sodium oxide solution 40ml, and then add ammonia water dropwise to make the solution transparent, the transparent solution is the silver plating solution; dissolve 40-80g of glucose and 2-20g of tartaric acid in 1000ml of distilled water in turn, boil to fully dissolve the glucose and tartaric acid , cooled to room temperature, adding 5 to 50 ml of absolute et...

Embodiment 3

[0017] Preparation of Ultrafine Glass Powder

[0018] The raw material is 65% by weight of PbO, SiO 2 11%, B 2 o 3 20%, ZnO 4% Grind in a porcelain mortar and mix well. Put this batch material into a high alumina crucible, melt at 1000°C for 2 hours, and melt into a glass state. Pour the glass liquid into cold water, dry the glass slag in a constant temperature box, and ball mill it with a planetary ball mill until the particle size is 400-600nm, then dry it for later use.

[0019] Silver-plated surface of ultra-fine glass powder

[0020] Take 10gAgNO 3 Fully dissolve in 125ml of distilled water, keep stirring the silver solution, slowly add ammonia water until a brown precipitate is formed, then add ammonia water until the precipitate is completely dissolved; add 25g of sodium hydroxide and dissolve in 100ml of distilled water to prepare a sodium hydroxide solution. Add 40ml of sodium hydroxide solution to 125ml of silver nitrate solution, and then add ammonia water d...

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Abstract

This invention discloses phototonus silver plasm materials applied in conflux electrode of the plasm ion display, which comprises silver covered glass powder, nanometer silver powder, black dye materials, light sensitive single body, light triggering agent, organic solvent, fiber resin and plastic strengthening agent. The process method comprises the following steps: first separately processing silver covered glass powder and organic carrier; then processing phototonus silver plasm materials; then adding ammonia till totally solving the deposition; then dropping ammonia till the solvent is transparent; finally adding the glass powder into the mixture silver liquid and deoxidizing liquid to the phototonus silver plasm through hyper acoustic process.

Description

technical field [0001] The invention relates to an electrode material used in a plasma display and a preparation method thereof, in particular to a photosensitive silver paste for a bus electrode of a plasma display and a preparation method thereof. Background technique [0002] Color PDP (Plasma Display) is a large-screen flat-panel display developed rapidly in the early 1990s. With its advantages of thin size, light weight, wide viewing angle and high resolution, it is expected to form a huge market in the early 21st century. application market. Electrode manufacturing is the key technology of color PDP (plasma display). Experience shows that a 107cm display screen needs to manufacture 2000m of electrodes with a width of tens of microns. Therefore, it is necessary to reduce the cost of the display screen and improve the yield of finished products by economically producing electrodes that meet the requirements. the key to. At present, there are t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B1/00H01J17/04
Inventor 林保平唐霁楠
Owner SOUTHEAST UNIV
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