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Conducting silver aluminum slurry containing dicyclohexyl phthalate

A technology of dicyclohexyl phthalate and conductive silver, which is applied to conductive materials, circuits, and electrical components dispersed in non-conductive inorganic materials, can solve problems such as poor solderability and large environmental pollution, and achieve improved The effect of electrical conductivity, lower production cost, and high photoelectric conversion efficiency of cells

Active Publication Date: 2013-04-03
浙江极铝科技有限公司
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AI Technical Summary

Problems solved by technology

In most electronic pastes, the inorganic binder is mainly lead-containing glass powder with a low melting point, which has major defects in environmental pollution and poor solderability

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0023] A conductive silver-aluminum paste containing dicyclohexyl phthalate, which is made from the following raw materials in parts by weight (kg): A material 52.4, B material 15, silane coupling agent KH540 1.5, tributyl phosphate Ester 0.7, silicone leveling agent 1, castor oil 0.5, sodium lauryl sulfonate 0.4, dicyclohexyl phthalate 0.6;

[0024] The material A is prepared from the following raw materials in parts by weight: 1-5 μm silver powder 44, 11-15 μm silver powder 37, 1-5 μm glass powder 12, organic carrier A 26;

[0025] The material B is prepared from the following raw materials in parts by weight: 6-10 μm aluminum powder 28, 16-25 μm aluminum powder 35, 10-15 μm glass powder 10, organic carrier B 20, di-n-pentyl phthalate 1 ;

[0026] Described glass powder is made by the raw material of following weight part: K 2 O 14, CuO 9, AS 2 o 3 9.7, Bi 2 o 3 14,B 2 o 3 8, Al 2 o 3 6, SiO 2 10, V 2 o 5 9.8, Sb 2 o 3 6, AgO 2 20, Co. 2 o 3...

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Abstract

The invention discloses conducting silver aluminum slurry containing dicyclohexyl phthalate. The conducting silver aluminum slurry comprises, by weight, 50-52.4 parts of A material, 10-15 parts of B material, 1-2 parts of silane coupling agent KH540, 0.5-1 part of tributyl phosphate, 1-2 parts of organosilicon flatting agent, 0.3-0.5 part of castor oil, 0.2-0.4 part of sodium dodecyl sulfate and 0.4-0.6 part of dicyclohexyl phthalate. The conducting slurry does not contain lead, completely meets the environment-friendly requirements, is applied to solar battery production and can be high in adhesion when formed on the surface of a solar battery, photoelectric conversion efficiency of the battery is high, silver powder of different grain diameters and the like are selected and used simultaneously, the contact area between grains is increased, and accordingly the conducting capability of the silver slurry is improved.

Description

technical field [0001] The invention relates to the field of conductive paste, in particular to a conductive silver-aluminum paste containing dicyclohexyl phthalate. Background technique [0002] Conductive paste is the key material for packaging, electrodes and interconnection of electronic components, mainly including two categories: burn-in type conductive paste and curable conductive adhesive (conductive ink). [0003] Solar cell conductive paste is composed of silver powder, aluminum powder, etc., inorganic binder, organic carrier and related additives. In most electronic pastes, the inorganic binder is mainly lead-containing glass powder with a low melting point, and its main defects are heavy environmental pollution and poor solderability. Therefore, it has become an inevitable trend to make the conductive paste highly efficient, environmentally friendly and lead-free. Contents of the invention [0004] The object of the present invention is to provide a kind of c...

Claims

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Application Information

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IPC IPC(8): H01B1/16H01B1/22H01B13/00H01L31/0224
Inventor 陈龙匡民马孝燕
Owner 浙江极铝科技有限公司
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