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Method for preparing high temperature sintering electronic argentalium paste from self-crosslinking acrylate resin

An acrylate and high-temperature sintering technology, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve the problems of slurry preparation and control difficulties, and avoid secondary flow phenomena, products The performance is easy to control and the effect of small investment

Inactive Publication Date: 2012-08-22
杭州得力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high solid content requirements of thick-film electronic silver-aluminum paste, which are generally above 80%, there is little room for adjusting the performance indicators of the paste by using auxiliary solvents, resulting in difficulties in the preparation and control of paste.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, add 38.0% diethylene glycol butyl ether in a reaction kettle equipped with a condenser, start the stirrer and heat for standby; then 39.0% methyl methacrylate, 5.0% isooctyl acrylate, Add 15.0% glycidyl methacrylate and 3.0% N-methylol acrylamide into the mixing kettle, add 0.1% benzoyl peroxide and stir evenly, and set aside; the diethylene glycol butyl ether in the reaction kettle is heated to 75 ℃, add the above-mentioned mixed monomers dropwise into the reaction kettle, control all the mixed monomers to be added within 3 hours, continue to react for 2 hours, cool and discharge to obtain the cross-linked acrylate resin. In addition, 5% of spherical silver powder with a fineness of 3-20μm, 10.0% of flake silver powder, 50.0% of aluminum powder, and 15.0% of low-melting lead-free glass powder with a fineness of 3-20μm were added to the mixer and mixed evenly, adding 0.5 % of silane coupling agent KH550, after stirring evenly, add 15.0% of the above-mentioned sel...

Embodiment 2

[0028] First, add 85.0% diethylene glycol butyl ether acetate in a reactor equipped with a condenser, start the stirrer and heat for standby; then add 8.0% methyl methacrylate, 2.0% butyl acrylate , 3.0% glycidyl methacrylate, 1.0% N-methylol acrylamide, 1.0% hydroxyethyl acrylate were added to the mixing kettle, and 0.3% azobisisobutyronitrile was added to stir evenly and set aside; to be reacted When the temperature of diethylene glycol butyl ether acetate in the kettle rises to 85°C, add the above-mentioned mixed monomers dropwise into the reaction kettle, control all the mixed monomers to be added within 2.5 hours, continue to react for 1 hour, cool and discharge to obtain self Joint-type acrylate resin. In addition, add 5.0% of spherical silver powder with a fineness of 3-20 μm, 5.0% of flake silver powder, 60% of aluminum powder and 10.0% of low-melting lead-free glass powder with a fineness of 3-20 μm into the mixer and mix evenly. Add 0.8% silane coupling agent KH560,...

Embodiment 3

[0030] First, add 25.0% of diethylene glycol dibutyl ether and 25.0% of diethylene glycol methyl ether acetate into a reaction kettle equipped with a condenser, start the stirrer and heat for standby; then add 28.0% of methyl Add methyl acrylate, 5.0% ethyl acrylate, 5.0% isooctyl acrylate, 10.0% glycidyl methacrylate, 1.0% N-methylol acrylamide, 1.0% hydroxypropyl acrylate to the mixing tank Add 0.5% benzoyl peroxide, stir evenly, and set aside; when the diethylene glycol ether ester mixed solvent in the reaction kettle is heated up to 88°C, add the above-mentioned mixed monomers to the reaction kettle dropwise, and control all the mixed monomers within 2 hours. After adding, continue to react for 2 hours, cool and discharge to obtain a self-crosslinkable acrylate resin. In addition, add 8.0% of spherical silver powder with a fineness of 3-20 μm, 5.0% of flake silver powder, 65% of aluminum powder and 5.0% of low-melting lead-free glass powder with a fineness of 3-20 μm into ...

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Abstract

The invention discloses a method for preparing high temperature sintering electronic argentalium paste from self-crosslinking acrylate resin. The method comprises the following steps of: firstly selecting acrylate monomers, and preparing the self-crosslinking acrylate resin through solution polymerization; mixing ultrafine argentalium powder, lead-free glass powder with low melting point, a surface modifier, an auxiliary agent and a defoaming agent, and dispersing the mixture into the self-crosslinking acrylate resin; and repeatedly grinding the mixture to obtain the electronic argentalium paste. The method for preparing the high temperature sintering electronic argentalium paste has the characteristics of simple process, convenience and feasibility, no need of special equipment, less investment, easy control of product performance and the like.

Description

technical field [0001] The invention relates to a preparation method of self-crosslinking type acrylate resin high-temperature sintered electronic silver-aluminum paste. Background technique [0002] Electronic paste is an important class of electronic fine chemicals. It can be widely used in many industries such as electronics, information, communication, aerospace, computer, electrical appliance manufacturing, precision components and solar energy. Its manufacturing technology involves related fields such as metallurgy, material, chemical industry, electronic technology and screen printing. Due to the wide range of applications of electronic paste, the wide range of fields involved in research and development, and the high technological content of products, developed countries with the world's industrial level have always paid more attention to the research and development of electronic paste products. [0003] In recent years, with the increasing shortage of conventiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/22H01L31/0224
Inventor 沈良王杰宋锡瑾
Owner 杭州得力科技股份有限公司
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