Preparation method of conductive paste

A conductive paste, the technology of the second step, applied in the field of preparation of non-metallic conductive paste, can solve the problems of low-temperature storage of conductive paste, difficult to clean, toxic and harmful substances, etc., and achieve the effects of not easy to deteriorate, easy to clean, and high safety

Active Publication Date: 2017-03-29
天津市瀛浩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to solve the problem that the conductive paste needs to be stored at low temperature and has toxic and harmful substances and is not easy to clean, and provides at least the advantages that will be described later

Method used

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  • Preparation method of conductive paste

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of conductive paste, comprising the steps of:

[0027] Step 1, take 5 parts by weight of glycerin and 15 parts by weight of sodium chloride and dissolve them in 50 parts by weight of water, and adjust the pH value of the solution to 5-6 with hydrochloric acid;

[0028] Step 2: Take 28.5 parts by weight of chitosan and add it to the solution in Step 1, then heat it in a water bath to 95°C while stirring, keep stirring at this temperature for 30min, and the stirring speed is 1000r / min;

[0029] Step 3: Add 1.5 parts by weight of carrageenan to Step 2, stir until it is completely dissolved, and then start to cool down at a cooling rate of 5°C / min, drop the temperature to 70°C, and then heat and stir for 3 minutes;

[0030] Step 4, cooling the product obtained in Step 3 to room temperature to obtain the conductive paste.

Embodiment 2

[0032] A preparation method of conductive paste, comprising the steps of:

[0033] Step 1. Dissolve 8.5 parts by weight of glycerin and 10 parts by weight of sodium chloride with 50 parts by weight of water, and adjust the pH value of the solution to 5-6 with hydrochloric acid;

[0034] Step 2: Take 29.5 parts by weight of carboxymethyl cellulose and add it to the solution in Step 1, then heat it in a water bath to 100°C while stirring, keep stirring at this temperature for 45 minutes, and the stirring speed is 800r / min;

[0035] Step 3: Add 2 parts by weight of konjac gum to step 2, stir until it is completely dissolved, and start to cool down at a cooling rate of 5°C / min, then cool down to 60°C, then heat and stir for 6 minutes;

[0036] Step 4, cooling the product obtained in Step 3 to room temperature to obtain the conductive paste.

Embodiment 3

[0038] A preparation method of conductive paste, comprising the steps of:

[0039] Step 1. Dissolve 10 parts by weight of glycerin and 11.5 parts by weight of sodium chloride with 50 parts by weight of water, and adjust the pH value of the solution to 5-6 with hydrochloric acid;

[0040] Step 2: Take 28 parts by weight of chitosan and add it to the solution in Step 1, then heat it in a water bath to 95°C while stirring, keep stirring at this temperature for 60min, and the stirring speed is 500r / min;

[0041] Step 3: Add 0.5 parts by weight of xanthan gum to step 2, stir until it is completely dissolved, and then start to cool down at a cooling rate of 5°C / min, drop the temperature to 65°C, and then heat and stir for 5 minutes;

[0042] Step 4, cooling the product obtained in Step 3 to room temperature to obtain the conductive paste.

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Abstract

The invention discloses a preparation method of conductive paste. The method comprises the following steps of (1) dissolving taken glycerinum and sodium chloride by using water and adjusting the pH value of a solution to be 5-6; (2) adding taken natural polysaccharide substance to the solution in the step (1), carrying out water-bath heating to 90-100 DEG C while stirring, maintaining the temperature and further stirring; (3) adding a thickener to the step (2), stirring the thickener until completely dissolving and then beginning to cool to 60-70 DEG C, and carrying out heat-preservation stirring; and (4) cooling the product obtained in the step (3) to a room temperature to obtain the conductive paste. No poisonous and harmful substance is added or generated in processing process; and the obtained product has excellent conductivity, can be stored in a room temperature condition and is easy to clean after being used.

Description

technical field [0001] The invention relates to the field of electrical materials. More specifically, the present invention relates to a preparation method of non-metallic conductive paste. Background technique [0002] Conductive paste is widely used in the connection of electronic devices to reduce the contact resistance of connection points. The safety of conductive paste is particularly important because it directly or indirectly contacts the human body. Conductive paste can make the electrodes for detecting electrocardiogram and electroencephalogram more closely connected with the human body, and reduce the resistance between the electrodes and the human body, which is necessary for the detection of electrocardiogram and electroencephalogram. [0003] Conductive paste consists of two basic components: gel and conductive ions. At present, artificially synthesized high molecular polymers are mainly used as gel components, and some chemical reagents, preservatives, flavo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B1/06
CPCH01B1/06H01B13/00
Inventor 卢璐娇
Owner 天津市瀛浩科技有限公司
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