Method for preparing photo-thermal curing conductive slurry

A technology of conductive paste and photothermal curing, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve the problems of long drying time, affecting work efficiency, high cost and price, and achieves Low cost, improved production efficiency, and increased printing resolution

Inactive Publication Date: 2011-08-17
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art that the cost of conductive paste is high, the drying time is long, and the work efficiency is affected, the present invention proposes a method for manufacturing photothermally cured conductive paste, which includes the following steps:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of preparation of photothermal curing conductive paste, comprises the following steps:

[0012] 1) Select 10 parts by mass of diethyl adipate as the solvent, mix with 3 parts by mass of hard polyester resin VITEL PE-708 and soft polyester resin VITEL R60B, wherein 0.5 parts of hard polyester resin Stir and mix polyester resin VITEL PE-708 and 2.5 parts of soft polyester resin VITEL R60B at 60°C until uniform;

[0013] 2) In the above mixture, add 9 parts by mass of polyester acrylate UCB-657, add 9 parts by mass of reactive diluent isobornyl acrylate, stir and mix;

[0014] 3) In the above mixture, add photoinitiator DAROCUR-1173, 0.5 parts of light stabilizer TINUVIN-292, 0.5 parts of activator triethanolamine according to 0.5 parts by mass, add 0.5 parts of dispersant BYK-104, at room temperature Stir to mix;

[0015] 4) In the above mixture, add flake silver powder with a particle diameter of 5 μm and a tap density of 1.5 to 4.0 g / ml according to 50 parts by...

Embodiment 2

[0018] A kind of preparation of photothermal curing conductive paste comprises the following steps:

[0019] 1) Select 15 parts by mass of diethyl adipate as the solvent, mix with 8 parts by mass of hard polyester resin VITEL PE-708 and soft polyester resin VITEL R60B, wherein hard polyester resin 2 parts of VITEL PE-708, 6 parts of soft polyester resin VITEL R60B, stirring and mixing at 60°C until uniform;

[0020] 2) In the above mixture, add 17 parts by mass of polyester acrylate PE-56F, add 20 parts by mass of reactive diluent isooctyl acrylate, stir and mix;

[0021] 3) In the above mixture, add photoinitiator DAROCUR-1173, light stabilizer TINUVIN-292, 1.5 parts of activator triethanolamine in 3 parts by mass, add 1.5 parts of dispersant BYK-161, stir and mix at room temperature ;

[0022] 4) In the above mixture, add flake silver powder with a particle diameter of 10 μm and a tap density of 1.5 to 4.0 g / ml according to 70 parts by mass, and stir and mix;

[0023] 5) ...

Embodiment 3

[0025] A kind of preparation of photothermal curing conductive paste comprises the following steps:

[0026] 1) Select 8 parts by mass of 1,4-butyrolactone as a solvent, mix with 7 parts by mass of hard polyester resin VITEL PE-708 and soft polyester resin VITEL R60B, wherein hard polyester Resin VITEL PE-708 is 2 parts, soft polyester resin VITEL R60B is 5 parts, stir and mix at 60°C until uniform;

[0027] 2) In the above mixture, add 13 parts by mass parts of aliphatic urethane acrylate B-618, add 8 parts by mass parts of reactive diluent isobornyl acrylate, stir and mix;

[0028] 3) Add 1.5 parts by mass of photoinitiator DAROCUR-1173, 0.5 parts by mass of light stabilizer TINUVIN-292, 1.5 parts of activator triethanolamine, and 0.5 parts of dispersant Noveon in the above mixture. Stir and mix at room temperature;

[0029] 4) In the above mixture, add flake silver powder with a particle diameter of 15 μm and a tap density of 1.5 to 4.0 g / ml according to 59 parts by mass,...

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Abstract

The invention relates to the technical field of screen printing, in particular to a method for preparing photo-thermal curing conductive slurry used for the screen printing, 1) diethyl apipate or 1, 4-butyrolactone is selected based on mass parts as a solvent and is stirred and mixed with hard polyester resin and soft polyester resin to a homogeneous state at 60 DEG C; 2) polyester acrylate or aliphatic urethane acrylate is selected based on mass parts, and a reactive diluent is added based on mass part for stirring and mixing; 3) a photoinitiator, a light stabilizer, an activating agent anda dispersing agent are added based on mass parts for stirring and mixing at normal temperature; 4) flake silver powder are added based on mass part for stirring and mixing; 5) the mixed slurry is ground to obtain the final conductive slurry. The inventive photo-thermal curing conductive silver slurry is capable of increasing printing resolution, enhancing production efficiency and lowering costs as well as is favorable for the implement of environmental protection.

Description

technical field [0001] The invention relates to the technical field of screen printing, in particular to a method for manufacturing photothermally curable conductive paste for screen printing. Background technique [0002] The low-temperature curing conductive paste used in flexible substrates generally adopts a heating curing method, and the curing time is 15 to 20 minutes, and some conductive pastes need 30 minutes or even longer to cure. Due to the long drying time required, it will affect work efficiency in batch printing and processing. Moreover, the line width of ordinary quality paste is not easy to control when printing thin lines, and the conductivity is also very general. Silver paste with high quality, good conductivity and high resolution is more expensive. Invention content: [0003] Aiming at the problems in the prior art that the cost of conductive paste is high, the drying time is long, and the work efficiency is affected, the present invention proposes a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B13/00C08L67/00
Inventor 朱万超
Owner IRICO
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