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Heat-resisting electric conduction metal paste and preparing method thereof

A conductive metal, heat-resistant technology, used in conductive materials, conductive materials, cable/conductor manufacturing, etc., can solve the problems of poor heat resistance and unstable conductive metal paste, and achieve good heat resistance and low resistivity. , the effect of small resistivity change

Inactive Publication Date: 2013-11-27
WUJIANG LONGXU METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general conductive metal paste is unstable at high temperature and has poor heat resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A heat-resistant conductive metal paste, comprising the following raw materials in parts by weight: 20 parts of tricresyl phosphate, 12 parts of titanium dioxide, 2 parts of propylene glycol, 10 parts of trichloroethane, 1 part of trichloromethane, oxidation 2 parts of calcium, 6 parts of benzoyl peroxide, 18 parts of potassium persulfate, 20 parts of aluminum stearate.

[0011] The preparation method of the above-mentioned heat-resistant conductive metal paste comprises the following steps: mixing tricresyl phosphate, titanium dioxide, propylene glycol, trichloroethane, fluorotrichloromethane, calcium oxide, benzoyl peroxide, and potassium persulfate, Heat to 45°C for 5 minutes, then add aluminum stearate and mix well.

Embodiment 2

[0013] A heat-resistant conductive metal paste, comprising the following raw materials in parts by weight: 30 parts of tricresyl phosphate, 16 parts of titanium dioxide, 15 parts of propylene glycol, 13 parts of trichloroethane, 10 parts of fluorotrichloromethane, oxidation 16 parts of calcium, 10 parts of benzoyl peroxide, 20 parts of potassium persulfate, 30 parts of aluminum stearate.

[0014] The preparation method of the above-mentioned heat-resistant conductive metal paste comprises the following steps: mixing tricresyl phosphate, titanium dioxide, propylene glycol, trichloroethane, fluorotrichloromethane, calcium oxide, benzoyl peroxide, and potassium persulfate, Heat to 60°C for 7 minutes, then add aluminum stearate and mix well.

Embodiment 3

[0016] A heat-resistant conductive metal paste, comprising the following raw materials in parts by weight: 25 parts of tricresyl phosphate, 14 parts of titanium dioxide, 10 parts of propylene glycol, 11 parts of trichloroethane, 5 parts of fluorotrichloromethane, Calcium 10 parts, benzoyl peroxide 8 parts, potassium persulfate 19 parts, aluminum stearate 25 parts.

[0017] The preparation method of the above-mentioned heat-resistant conductive metal paste comprises the following steps: mixing tricresyl phosphate, titanium dioxide, propylene glycol, trichloroethane, fluorotrichloromethane, calcium oxide, benzoyl peroxide, and potassium persulfate, Heat to 50°C for 9 minutes, then add aluminum stearate and mix well.

[0018] The performance of the present invention is tested through experiments as follows: the resistivity of the present invention is tested under the conditions of 25° C., 75° C. and 150° C. respectively.

[0019] Example 1 Example 2 Example ...

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Abstract

The invention discloses a heat-resisting electric conduction metal paste and a preparing method thereof. The heat-resisting electric conduction metal paste comprises the raw materials, by weight, 20-30 parts of tricresyl phosphate, 12-16 parts of titanium dioxide, 2-15 parts of propylene glycol, 10-13 parts of trichloroethane, 1-10 parts of Freon-11, 2-16 parts of calcium oxide, 6-10 parts of benzoyl peroxide, 18-20 parts of potassium peroxodisulfate and 20-30 parts of aluminium stearate. The electrical resistivity of the electric conduction metal paste prepared through the method is small, the electrical resistivity is only 1.8-1.9 omega*cm at the normal temperature, the change of the electrical resistivity under the high temperature condition is small, and the heat-resisting electric conduction metal paste has good electrical conductivity and heat resistance.

Description

technical field [0001] The invention relates to a metal paste, in particular to a heat-resistant conductive metal paste and a preparation method thereof. Background technique [0002] The contact surface of the electrical connection conductor and the contact surface, no matter how smooth the processing is, they are all uneven from the perspective of the fine structure. An oxide layer is formed to make the effective contact area smaller. The zinc, nickel, chromium and other fine particles in the conductive paste are filled in the gaps of the contact surface, which is equivalent to increasing the conductive contact surface. Under the action of compression force or bolt fastening force, the metal fine particles can break the metal oxidation on the contact surface. Layer, so that the contact resistance is reduced, the temperature rise of the corresponding joint is also reduced, and the service life of the joint is prolonged. For joints of different materials, especially copp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/00H01B13/00
Inventor 徐志坚
Owner WUJIANG LONGXU METAL PROD
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