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Method for measuring silver element content of conductive silver paste material

A technology for conductive silver paste and element content, applied in the field of chemical analysis, can solve the problems of complex silver element measurement methods and low measurement efficiency, and achieve the effects of fast measurement speed, simple steps and accurate measurement results.

Inactive Publication Date: 2012-03-28
SHANGHAI FALAB TEST
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Problems solved by technology

[0005] In order to solve the problem of complex silver element measurement method and low measurement efficiency in the existing silver paste materials, the present invention proposes the following technical solutions:

Method used

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Embodiment Construction

[0018] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0019] A method for measuring silver element content in a conductive silver paste material, the method may further comprise the steps:

[0020] A. Take a certain amount of silver paste sample with a balance, the weight is 0.6293g, and it is recorded as m 1 ;

[0021] B. Put the weighed silver paste sample into an oven, bake it at 80°C for 4 to 6 hours, then take out the silver paste sample, weigh it with a balance after natural cooling, and record it;

[0022] C. Put the silver paste sample obtained in step B into the oven again, and bake it for 1 hour at a temperature of 150-200°C, then take out the silver paste sample, weigh it with a balance after natural cooling, and record it ;

[0023] ...

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Abstract

The invention provides a method for measuring the silver element content of a conductive silver paste material. The method comprises the following steps of: A, weighing a certain amount of silver paste sample, and making as m1; B, putting the weighed silver paste into a baking oven, baking at the temperature 80 DEG C for 4-6 hours, taking out, cooling, weighing and recording; C, putting the silver paste sample obtained in the step B into the baking oven once again, baking at the temperature 150-200 DEG C for 1 hour, taking out, cooling, weighing and recording; D, putting the silver paste sample obtained in the step C into the baking oven once again, baking at the temperature 350 DEG C for 1 hour, taking out, cooling, weighing and recording; E, repeating the step D till the weight of the sample does not change, and marking the final weight of the silver paste sample as m2; and F, obtaining the content of the silver element in the silver paste according to a formula. The method has the advantages of simple steps, easiness for operating, high measuring speed, high efficiency and accurate measuring result.

Description

technical field [0001] The invention relates to the field of chemical analysis, in particular to a method for measuring silver elements in conductive silver paste materials. Background technique [0002] Generally speaking, silver paste materials can be divided into two types: conductive and non-conductive. Conductive silver paste is usually added with conductive fillers such as silver metal particles as a conductive medium, while non-conductive silver paste is added with non-conductive fillers. Such as ceramic filler, ceramic powder such as silicon dioxide or boron nitride or polymer filler, polytetrafluoroethylene polymer powder. Among them, the conductive silver paste mainly consists of metallic silver particles, binders, solvents and additives. [0003] Metallic silver particles are the main component of conductive silver paste, and the content in the paste is directly related to the conductivity. In a sense, high silver content is beneficial to improve its conductivit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 冯银巧
Owner SHANGHAI FALAB TEST
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