Organic carrier for electronic silver paste and preparation method of organic carrier

An organic carrier, silver paste technology, applied in conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of disconnection and inequality, and achieve improved surface quality, good consistency, and good compatibility. Effect

Inactive Publication Date: 2015-02-25
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve problems such as unevenness, foaming, cracks, disconnection, etc. that the electronic silver paste made by the existing organic carrier is prone to appear in the printing and sintering process, the purpose of the present invention is to provide an organic carrier for electronic silver paste and its preparation method

Method used

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  • Organic carrier for electronic silver paste and preparation method of organic carrier

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Effect test

Embodiment 1

[0027] An organic vehicle for electronic silver paste, which is composed of a thickener, a solvent and an auxiliary agent, the auxiliary agent includes a surfactant, a coupling agent, a plasticizer and a defoamer, and the thickener is ethyl cellulose and Phenolic resin, solvent is terpineol, butyl carbitol, surfactant is zinc stearate, coupling agent is titanate coupling agent TTOP-12, plasticizer is dibutyl phthalate, The defoamer is polyoxypropylene propylene glycol ether, and the components are as follows by weight percentage: ethyl cellulose 4.5%, phenolic resin 2.0%, terpineol 50.0%, butyl carbitol 32.3%, stearate Zinc acid 1.0%, titanate coupling agent TTOP-12 1.5%, dibutyl phthalate 7.5%, polyoxypropylene propylene glycol ether 1.2%.

[0028] The preparation method of the organic carrier for the above-mentioned electronic silver paste specifically comprises the following steps:

[0029] (1) Weigh various raw materials according to the weight percentage of each componen...

Embodiment 2

[0034] An organic vehicle for electronic silver paste, which is composed of a thickener, a solvent and an auxiliary agent, the auxiliary agent includes a surfactant, a coupling agent, a plasticizer and a defoamer, and the thickener is ethyl cellulose and Rosin resin, solvent is terpineol, butyl carbitol, surfactant is zinc stearate, coupling agent is titanate coupling agent TTOP-12, plasticizer is dioctyl phthalate, The defoamer is polyoxypropylene propylene glycol ether, and the components are as follows: ethyl cellulose 8.0%, rosin resin 1.0%, terpineol 71.0%, butyl carbitol 9.0%, stearate Zinc acid 1.5%, titanate coupling agent TTOP-12 1.0%, dioctyl phthalate 7.5%, polyoxypropylene propylene glycol ether 1.0%.

[0035] The components and weight percentages of the organic vehicle in Examples 3-6 are shown in Table 1.

[0036] Table 1 Different ratios of organic carriers

[0037]

[0038] The organic carrier prepared by 20% of Examples 1-6 and 75% silver powder, 3% boron...

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Abstract

The invention discloses an organic carrier for electronic silver paste and a preparation method of the organic carrier. The organic carrier comprises, in weight percent, 4.5-12.0% of thickeners, 68.0-92.0% of solvents, 1.0-5.0% of surfactants, 1.0-2.0% of coupling agents, 0-10.0% of plasticizers and 1.0-4.0% of defoamers. The preparation method of the organic carrier includes the steps: firstly, weighing various raw materials according to the weight percent of components; secondly, heating and stirring the thickeners, the solvents and the plasticizers in water bath until completely dissolving; thirdly, filtering obtained mixture by a filter screen and cooling the mixture to reach the room temperature; and finally, sequentially adding the surfactants, the coupling agents and the defoamers into solution obtained after filtering, and uniformly mixing the mixture to obtain the organic carrier. The organic carrier solves the problems that a thick film element and a circuit easily foam, peel, wrinkle and loose during manufacture, graphic resolution is difficultly improved and the like.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and in particular relates to an organic carrier for electronic silver paste and a preparation method thereof, which are used in the technical field of production of basic materials such as electronic components and thick film circuits. Background technique [0002] Electronic paste is the basic material for manufacturing electronic components and thick film circuits. It has the characteristics of environmental protection, high efficiency and energy saving. With the development of microelectronic technology, the demand for electronic paste is gradually increasing. Generally speaking, electronic paste is mainly composed of functional phase powder, organic carrier, binder and additives, among which the functional phase powder is determined according to the use of electronic paste. According to different purposes, electronic paste is divided into dielectric paste, resistance paste and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L1/28C08L61/06C08L93/04C08L61/14C08L71/02C08L71/08C08K5/098C08K5/12C08K5/05H01B1/22
Inventor 郝晓光周世平白晓华张青李娟王勇程绍娟
Owner LUOYANG INST OF SCI & TECH
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