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Method for producing water-soluble PTC functional conductive carbon paste

A technology of conductive carbon paste and manufacturing method, which is applied to conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of oily conductive carbon paste toxicity, restrictions on popularization and application, and impact on human health, etc., and achieves remarkable energy-saving effect. Simple, practical effects

Inactive Publication Date: 2009-04-15
TIANJIN HUALIN WEIYE TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oily conductive carbon paste has certain toxicity, pollutes the environment, affects human health, and is flammable, explosive, high production cost, and greatly restricted in popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of manufacture method of water-soluble PTC functional conductive carbon paste, implementation step comprises:

[0030] The first step: the preparation of conductive carbon paste, by weight percentage, using the following raw materials:

[0031] Deionized water 58%, (58g);

[0032] Toner 10%, (10g);

[0033] Two-component polyurethane 24%, (24g);

[0034] Dispersant A: 760W 4%, (4g);

[0035] Dispersant B: 702 4%, (4g);

[0036] At room temperature, gradually add the above-mentioned amount of deionized water into the two-component polyurethane weighed according to the above-mentioned amount, and then add it while stirring; Agent 702, fully stirred evenly, and homogenized with a homogenizer;

[0037] The second step: the preparation of PTC functional materials, by weight percentage, using the following raw materials:

[0038] Deionized water 46%, (46g);

[0039] Substrate wetting agent: 500 3%, (3g);

[0040] Ethylene glycol methyl ether 10%, (10g);

[004...

Embodiment 2

[0050] The first step: the preparation of conductive carbon paste, by weight percentage, using the following raw materials:

[0051] Deionized water 41%, (41g);

[0052] Toner 15%, (15g);

[0053] Two-component polyurethane 28%, (28g);

[0054] Dispersant A: 760W 7%, (7g);

[0055] Dispersant B: 702 9%, (9g);

[0056] At room temperature, gradually add the above-mentioned amount of deionized water into the two-component polyurethane weighed according to the above-mentioned amount, and then add it while stirring; Agent 702, fully stirred evenly, and homogenized with a homogenizer;

[0057] The second step: the preparation of PTC functional materials, by weight percentage, using the following raw materials:

[0058] Deionized water 30%, (30g);

[0059] Substrate wetting agent: 500 2%, (2g);

[0060] Ethylene glycol methyl ether 18%, (18g);

[0061] Stearic Acid 33%, (33g);

[0062] Monoglyceride 10%, (10g);

[0063] Emulsifier: Tween 40 4%, (4g);

[0064]Glycerin 3%, ...

Embodiment 3

[0071] The first step: the preparation of conductive carbon paste, by weight percentage, using the following raw materials:

[0072] Deionized water 40%, (40g);

[0073] Toner 18%, (18g);

[0074] Two-component polyurethane 36%, (36g);

[0075] Dispersant A: 760W 3%, (3g);

[0076] Dispersant B: 702 3%, (3g);

[0077] At room temperature, gradually add the above-mentioned amount of deionized water into the two-component polyurethane weighed according to the above-mentioned amount, and then add it while stirring; Agent 702, uniformly stirred with a high-speed mixer, and then homogenized with a high-speed homogenizer;

[0078] The second step: the preparation of PTC functional materials, by weight percentage, using the following raw materials:

[0079] Deionized Water 32%, (32g)

[0080] Substrate wetting agent: 500 4%, (4g)

[0081] Ethylene glycol methyl ether 12%, (12g);

[0082] Stearic Acid 20%, (20g);

[0083] Monoglycerides 26%, (26g);

[0084] Emulsifier: Tween...

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Abstract

The invention relates to a preparation method of conductive carbon paste with water solubility and PTC function. The method comprises the following steps of: first step: carrying out preparation of the carbon paste; adding 40 percent to 60 percent of deionized water into 24 percent to 40 percent of bicomponent polyurethane, uniformly mixing, adding 10 percent to 20 percent of carbon powder, adding dispersing agent and uniformly stirring; second step: carrying out preparation of PTC functional material; taking 30 percent to 50 percent of deionized water, adding 2 percent to 4 percent of matrix wetting agent 500, 10 percent to 20 percent of ethylene glycol monomethyl ether and 3 percent to 5 percent of emulsifying agent; adding tween and uniformly mixing; then adding stearic acid, monoglyceride and glycerin, heating to 80 DEG C, uniformly stirring, homogenizing, emulsifying, reducing temperature to 35 DEG C, and filtering for spare; and third step: carrying out the preparation of conductive carbon paste with water solubility and PTC function, taking 100 parts by weight of conductive carbon paste and 30 to 60 parts by weight of PTC functional material, and mixing and stirring; and taking 0 percent to 4 percent of defoaming agent which is put into conductive carbon paste with PTC function in stirring and uniformly stirring. The method has simple operation, loose preparation conditions, wide material obtaining, no toxicity and no pollution; and the product thereof has excellent conductivity, safeness, reliability and wide application.

Description

technical field [0001] The invention relates to a method for manufacturing conductive carbon paste, in particular to a method for manufacturing water-soluble PTC functional conductive carbon paste. Background technique [0002] At present, the conductive carbon paste with PTC function in the domestic market is oily, but there is no water-soluble PTC conductive carbon paste. Oily conductive carbon paste has certain toxicity, pollutes the environment, affects human health, and is flammable, explosive, high in production cost, and its popularization and application are greatly restricted. [0003] Therefore, to provide a method for manufacturing water-soluble PTC functional conductive carbon paste with simple operation, no pollution, low cost, wide selection of materials, excellent electrical conductivity, and safe and reliable use is one of the urgent problems to be solved by researchers in this field. Contents of the invention [0004] The purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K13/02C08K3/04C08J3/21H01B1/24
Inventor 张宝玲徐明玉李树福张兴祥
Owner TIANJIN HUALIN WEIYE TECH DEV
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