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Electroconductive paste composition and the method of producing the same

A technology of electrical conductivity and composition, applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve problems such as fire and explosion, and achieve low contact resistance, good conductivity, and good adhesive effect

Inactive Publication Date: 2010-10-06
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for highly reactive resins such as fluororesins with high fluorine content, when directly kneaded with metal powder particles such as silver particles under high shear force, there is a risk of fire and explosion, and it has become a manufacturing process. Barriers to productivity gains in

Method used

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  • Electroconductive paste composition and the method of producing the same
  • Electroconductive paste composition and the method of producing the same
  • Electroconductive paste composition and the method of producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132] Silver powder treated with 10% silver oxide with an average particle size of 400nm 50g

[0133] (manufactured by Mitsui Kinzoku Co., Ltd., FHD, crystallite diameter less than 10nm)

[0134] 5 g of a 10% by mass aqueous solution of cocoaminoacetate

[0135] (Alkylamine salt type cationic surfactant)

[0136] 0.5 g of a 10% by mass aqueous solution of polyoxyethylene cocoalkylamine ether

[0137] (Alkylamine type nonionic surfactant)

[0138] water 50g

[0139] The above materials and 400 g of zirconia beads with a diameter of 2 mm were put into a polyethylene bottle with a volume of 250 ml, mixed, and mixed for 4 hours using a rotary machine (ball mill) to obtain a silver particle dispersion (a).

[0140] Transfer 100 g of the silver powder dispersion (a1) to a flat tray with bottom dimensions of 200 mm long x 150 mm wide, preliminarily freeze-dry, and then vacuum freeze-dry using "DFM-05AS" manufactured by Nippon Vacuum Co., Ltd. Load the dispersion (a1) of the sil...

Embodiment 2

[0189] Except using the fluororesin " VITON A-500 " (manufactured by DuPont) of fluorine content 66% instead of DYNEON FC-2211 in the embodiment 1 as the fluororesin, with the same method as the embodiment 1, obtain the silver paste (B2 ). Screen printing on PET results in repeatable prints without blurring or uneven colors. The volume resistivity is 2.08×10 -5 Ω·cm. By screen printing using a mask film with a printed pattern and silver paste (B2), printing was repeated on an ITO-deposited glass plate in the same manner as in Example 1 to obtain a rectangular printed coating film and printed pattern. . No printing failure was observed. The average thickness of the rectangular printed coating film was 11.9 μm. Measure the volume resistivity, the average is 2.08×10 -5 Ω·cm. In addition, when the contact resistance was measured by the TLM method, it was 0.411Ω. When the above coating film was immersed in saturated saline at room temperature for 120 hours, no change in sur...

Embodiment 3

[0225] 33g of silver powder (TC-38S, manufactured by Deli Chemical Co., Ltd.) with a volume average particle diameter of 1.26 μm and 7 g of fluorine resin (DYNEONFC-2211, manufactured by Sumitomo 3M Co., Ltd.) with a fluorine content of 7 g were dissolved in butyl cellosolve acetic acid Esters and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate 50:50 mixed solution 11.5g, form varnish solution, this varnish solution and 2mm diameter zirconia beads of 400g The mixture was put into a 250 cc polyethylene bottle, mixed and stirred with a shaker for 4 hours, and a silver paste was obtained.

[0226] This silver paste was coated on PET with a thickness of 50 μm using an applicator, and the formed coating film was fired at 230° C. for 30 minutes, and the film thickness and volume resistivity were measured.

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Abstract

The invention relates to an electroconductive paste composition and a method of producing the same. The electroconductive paste composition can form wiring patterns on electrodes, with high conductivity, good adhesion and low contact resistance to a transparent conductive firm, good moisture resistance, good weather resistance and high reliability. In particular, the electroconductive paste composition is characterized by including fluororesin, solvent and conductive powders mainly composed of silver or silver compound; wherein fluorine atom content in the fluororesin is higher than 40% by mass and lower than 75% by mass.

Description

technical field [0001] The present invention relates to a conductive paste composition. More specifically, the present invention relates to an electroconductive paste composition suitable for forming electrodes or electric wiring, and a method for producing the same, which can be suitably used in Films used in solar cells, touch panels, and EL elements, substrates, and other substrates provided with transparent conductive films can be formed by coating or printing on the substrate to form a coating film and heating and curing the coating film. The conductive pattern has excellent adhesion and conductivity, and can also form a highly reliable electrode. Background technique [0002] In the electroluminescent element, a light-emitting layer and a dielectric layer are sequentially provided on a transparent electrode deposited with ITO (indium tin oxide), and a conductive paste is coated on the transparent electrode layer and the dielectric layer to form a lead-out electrode. ...

Claims

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Application Information

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IPC IPC(8): H01B1/22H01B13/00C08L27/12C08K9/10C08K9/02C08K3/08
Inventor 末永涉平林宪一菅野勉千手康弘江幡良子
Owner DIC CORP
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