CN101407628B - Method for producing water-soluble PTC functional conductive carbon paste - Google Patents
Method for producing water-soluble PTC functional conductive carbon paste Download PDFInfo
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- CN101407628B CN101407628B CN2008101532522A CN200810153252A CN101407628B CN 101407628 B CN101407628 B CN 101407628B CN 2008101532522 A CN2008101532522 A CN 2008101532522A CN 200810153252 A CN200810153252 A CN 200810153252A CN 101407628 B CN101407628 B CN 101407628B
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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
The present invention relates to a kind of manufacture method of conductive carbon paste, relate in particular to a kind of manufacture method of water-soluble PTC functional conductive carbon paste.
Background technology
At present, the conductive carbon paste that has the PTC function on the domestic market all is a butyrous, and does not have water miscible PTC conductive carbon paste.The oiliness conductive carbon paste has certain toxicity, and contaminate environment influences HUMAN HEALTH, and inflammable, explosive, production cost is high, popularization and application is very restricted.
Therefore, providing a kind of manufacture method of simple to operate, pollution-free, cost is low, it is wide to draw materials, conductivity is good, safe and reliable water-soluble PTC functional conductive carbon paste, is one of the current urgency of this field scientific research personnel difficult problem to be solved.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, provide a kind of and effectively improve the quality of products, technology is simple, the manufacture method of obvious results water-soluble PTC functional conductive carbon paste.
Implementation step of the present invention for achieving the above object is as follows:
A kind of manufacture method of water-soluble PTC functional conductive carbon paste is characterized in that implementation step is as follows:
The first step: the conductive carbon paste preparation, by weight percentage, adopt following starting material:
Deionized water 40～60%,
Carbon dust 10～20%,
Dual-component polyurethane 24～40%,
Dispersant A: 760W 3～8%,
Dispersant B: 702 3～10%;
Under the normal temperature, above-mentioned amount deionized water is progressively added in the dual-component polyurethane that takes by weighing by above-mentioned amount, the limit is stirred just and is added; Behind the mixing, add above-mentioned amount carbon dust while stirring, add dispersion agent 760W, dispersion agent 702, stir, and carry out homogeneous with clarifixator by above-mentioned amount;
Second step: the preparation of PTC functional materials, by weight percentage, adopt following starting material:
Deionized water 30～50%,
The base material wetting agent: 500 2～4%,
Ethylene glycol monomethyl ether 10～20%,
Stearic acid 20～40%,
Tegin 55G 10～30%,
Emulsifying agent: polysorbate40 3～5%,
Glycerine 4～7%;
Measure base material wetting agent 500, ethylene glycol monomethyl ether, the emulsifying agent that deionized water adds above-mentioned amount by above-mentioned: polysorbate40 stirs; Add stearic acid, Tegin 55G, glycerine by above-mentioned amount then, heat while stirring, be heated to 80 ℃ and stir, homogenizing emulsifying is cooled to 35 ℃, filters standby;
The 3rd step: water-soluble PTC functional conductive carbon paste preparation:
Get conductive carbon paste 100 weight parts, be put in the high speed leaf formula a mixing bowl and stir, rotating speed is 100～10000 rev/mins; Get PTC functional materials 30～60 weight parts, drop in the conductive carbon paste that is stirring, stir in the lump, stirring velocity is controlled at 40～100 rev/mins of low-speed ranges; The cancellation infusion accounts for PTC functional conductive carbon paste gross weight 0～4%, drops in the PTC functional conductive carbon paste that is stirring, and stirs in the lump, stirs after 30～40 minutes, grinds refinement with colloidal mill or conoidal mill, and granularity is controlled at below 100 microns, is finished product.
The invention has the beneficial effects as follows: product of the present invention has water-soluble PTC conductive carbon paste function, and principal feature is water-soluble, cleans easily, and is nontoxic, free from environmental pollution, to not influence of HUMAN HEALTH, effectively guarantees operator's good working environment.Product P TC of the present invention (positive temperature coefficient) effect is obvious, and conductive resistance raises and the resistance increase with temperature, and maximum PTC effect can reach more than 10 times, and conductivity is good, safe and reliable.This carbon slurry is of many uses, can be applied to any insulator surface.Base material can be a software, as: paper, pure cotton fabric, plastic tree adipose membrane surface.Also can be coated on the crust, as resin board, huge fat plate etc.As long as reasonable connection electrode can realize electric heating function.According to test: this carbon slurry also has emitting far-infrared function.Practicality is extremely strong, and energy-saving effect is remarkable.The PTC function can be controlled automatically, plays power savings; The finished product excellent property can be used on all respects in the daily lifes such as electric industry, precision instrument, food, agricultural, can expand multiple product innovation, and range of application is very extensive.
The inventive method prescription is reasonable, and technology is simple, is convenient to operation, and cost is low, use extensively, and loose preparation conditions, pollution-free, be beneficial to environmental protection, effectively improve the quality of products, and the starting material wide material sources.The product of the inventive method manufacturing has been filled up the blank of this series products of China, and market outlook are boundless.
Embodiment
Below in conjunction with preferred embodiment, to details are as follows according to embodiment provided by the invention:
Embodiment 1
A kind of manufacture method of water-soluble PTC functional conductive carbon paste, implementation step comprises:
The first step: the conductive carbon paste preparation, by weight percentage, adopt following starting material:
Deionized water 58%, (58g);
Carbon dust 10%, (10g);
Dual-component polyurethane 24%, (24g);
Dispersant A: 760W 4%, (4g);
Dispersant B: 702 4%, (4g);
Under the normal temperature, above-mentioned amount deionized water is progressively added in the dual-component polyurethane that takes by weighing by above-mentioned amount, the limit is stirred just and is added; Behind the mixing, add above-mentioned amount carbon dust while stirring, add dispersion agent 760W, dispersion agent 702, stir, and carry out homogeneous with clarifixator by above-mentioned amount;
Second step: the preparation of PTC functional materials, by weight percentage, adopt following starting material:
Deionized water 46%, (46g);
The base material wetting agent: 500 3%, (3g);
Ethylene glycol monomethyl ether 10%, (10g);
Stearic acid 21%, (21g);
Tegin 55G 10%, (10g);
Emulsifying agent: polysorbate40 3%, (3g);
Glycerine 7%, (7g);
Measure base material wetting agent 500, ethylene glycol monomethyl ether, the emulsifying agent that deionized water adds above-mentioned amount by above-mentioned: polysorbate40 stirs; Add stearic acid, Tegin 55G, glycerine by above-mentioned amount then, heat while stirring, be heated to 80 ℃ and stir, homogenizing emulsifying is cooled to 35 ℃, filters standby;
The 3rd step: water-soluble PTC functional conductive carbon paste preparation:
Get conductive carbon paste 100 weight parts, be put in the high speed leaf formula a mixing bowl and stir, rotating speed is 100～10000 rev/mins; Get PTC functional materials 30 weight parts, drop in the conductive carbon paste that is stirring, stir in the lump, stirring velocity is controlled at 40～100 rev/mins of low-speed ranges; The cancellation infusion accounts for PTC functional conductive carbon paste gross weight 0～4%, drop in the PTC functional conductive carbon paste that is stirring, stir in the lump, stir after 30～40 minutes, (also can not add defoamer directly stirs) promptly stirs, grind refinement with colloidal mill or conoidal mill, granularity is controlled at below 100 microns, is finished product.
The various starting material of described employing all can be buied in market, and mass concentration ratio is 10～20%.
Embodiment 2
The first step: the conductive carbon paste preparation, by weight percentage, adopt following starting material:
Deionized water 41%, (41g);
Carbon dust 15%, (15g);
Dual-component polyurethane 28%, (28g);
Dispersant A: 760W 7%, (7g);
Dispersant B: 702 9%, (9g);
Under the normal temperature, above-mentioned amount deionized water is progressively added in the dual-component polyurethane that takes by weighing by above-mentioned amount, the limit is stirred just and is added; Behind the mixing, add above-mentioned amount carbon dust while stirring, add dispersion agent 760W, dispersion agent 702, stir, and carry out homogeneous with clarifixator by above-mentioned amount;
Second step: the preparation of PTC functional materials, by weight percentage, adopt following starting material:
Deionized water 30%, (30g);
The base material wetting agent: 500 2%, (2g);
Ethylene glycol monomethyl ether 18%, (18g);
Stearic acid 33%, (33g);
Tegin 55G 10%, (10g);
Emulsifying agent: polysorbate40 4%, (4g);
Glycerine 3%, (3g);
Measure base material wetting agent 500, ethylene glycol monomethyl ether, the emulsifying agent that deionized water adds above-mentioned amount by above-mentioned: polysorbate40 stirs; Add stearic acid, Tegin 55G, glycerine by above-mentioned amount then, heat while stirring, be heated to 80 ℃ and stir, homogenizing emulsifying is cooled to 35 ℃, filters standby;
The 3rd step: water-soluble PTC functional conductive carbon paste preparation:
Get conductive carbon paste 100 weight parts, be put in the high speed leaf formula a mixing bowl and stir, rotating speed is 100～10000 rev/mins; Get PTC functional materials 45 weight parts, drop in the conductive carbon paste that is stirring, stir in the lump, stirring velocity is controlled at 40～100 rev/mins of low-speed ranges; Cancellation infusion model is 8007, and defoamer accounts for PTC functional conductive carbon paste gross weight 0.5～4%, drops in the PTC functional conductive carbon paste that is stirring, stir in the lump, stir after 30～40 minutes, grind refinement with colloidal mill or conoidal mill, granularity is controlled at below 100 microns, is finished product.
The various starting material of described employing all can be buied in market, and mass concentration ratio is 10～20%.
Other is same as embodiment 1.
Embodiment 3
The first step: the conductive carbon paste preparation, by weight percentage, adopt following starting material:
Deionized water 40%, (40g);
Carbon dust 18%, (18g);
Dual-component polyurethane 36%, (36g);
Dispersant A: 760W 3%, (3g);
Dispersant B: 702 3%, (3g);
Under the normal temperature, above-mentioned amount deionized water is progressively added in the dual-component polyurethane that takes by weighing by above-mentioned amount, the limit is stirred just and is added; Behind the mixing, add above-mentioned amount carbon dust while stirring, add dispersion agent 760W, dispersion agent 702, utilize high speed agitator evenly to stir, carry out homogeneous with high-shear homogenizer then by above-mentioned amount;
Second step: the preparation of PTC functional materials, by weight percentage, adopt following starting material:
Deionized water 32%, (32g)
The base material wetting agent: 500 4%, (4g)
Ethylene glycol monomethyl ether 12%, (12g);
Stearic acid 20%, (20g);
Tegin 55G 26%, (26g);
Emulsifying agent: polysorbate40 3%, (3g);
Glycerine 3%, (3g);
Measure base material wetting agent 500, ethylene glycol monomethyl ether, the emulsifying agent that deionized water adds above-mentioned amount by above-mentioned: polysorbate40 stirs; Add stearic acid, Tegin 55G, glycerine by above-mentioned amount then, heat while stirring, be heated to 80 ℃ and stir, homogenizing emulsifying is cooled to 35 ℃, filters standby;
The 3rd step: water-soluble PTC functional conductive carbon paste preparation:
Get conductive carbon paste 100 weight parts, be put in the high speed leaf formula a mixing bowl and stir, rotating speed is 100～10000 rev/mins; Get PTC functional materials 60 weight parts, drop in the conductive carbon paste that is stirring, stir in the lump, stirring velocity is controlled at 40～100 rev/mins of low-speed ranges; Take by weighing model and be 8007 defoamer, defoamer accounts for PTC functional conductive carbon paste gross weight 0.5～4%, drops in the PTC functional conductive carbon paste that is stirring, stir in the lump, stir after 30～40 minutes, grind refinement with colloidal mill or conoidal mill, granularity is controlled at below 100 microns, is finished product.
The various starting material of described employing all can be buied in market, and mass concentration ratio is 10～20%.
Other is same as embodiment 1.
Application example: utilize this water-soluble PTC functional conductive carbon paste to be coated in the soft heating element of making on the cotton that has copper conductor, be applied in geothermal heating, therapeutic Electric heating bed mattress etc., all received the effect of highly significant.Because product of the present invention is water-soluble, so toxicological harmless, nonpollution environment, easy cleaning.And have the PTC function,, reduce power consumption and play power savings with the heat-processed A.T.C.
Above-mentioned detailed description of the manufacture method of this water-soluble PTC functional conductive carbon paste being carried out with reference to embodiment; be illustrative rather than determinate; can exemplify out several embodiment according to institute's limited range; therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.
Claims (1)
1. the manufacture method of a water-soluble PTC functional conductive carbon paste is characterized in that implementation step is as follows:
The first step: the conductive carbon paste preparation, by weight percentage, adopt following starting material:
Deionized water 40～60%,
Carbon dust 10～20%,
Dual-component polyurethane 24～40%,
Dispersant A: 760W 3～8%,
Dispersant B: 702 3～10%;
Under the normal temperature, above-mentioned amount deionized water is progressively added in the dual-component polyurethane that takes by weighing by above-mentioned amount, add while stirring; Behind the mixing, add above-mentioned amount carbon dust while stirring, add dispersion agent 760W, dispersion agent 702, stir, and carry out homogeneous with clarifixator by above-mentioned amount;
Second step: the preparation of PTC functional materials, by weight percentage, adopt following starting material:
Deionized water 30～50%,
The base material wetting agent: 500 2～4%,
Ethylene glycol monomethyl ether 10～20%,
Stearic acid 20～40%,
Tegin 55G 10～30%,
Emulsifying agent: polysorbate40 3～5%,
Glycerine 4～7%;
Measure base material wetting agent 500, ethylene glycol monomethyl ether, the emulsifying agent that deionized water adds above-mentioned amount by above-mentioned: polysorbate40 stirs; Add stearic acid, Tegin 55G, glycerine by above-mentioned amount then, heat while stirring, be heated to 80 ℃ and stir, homogenizing emulsifying is cooled to 35 ℃, filters standby;
The 3rd step: water-soluble PTC functional conductive carbon paste preparation:
Get conductive carbon paste 100 weight parts, be put in the high speed leaf formula a mixing bowl and stir, rotating speed is 100～10000 rev/mins; Get PTC functional materials 30～60 weight parts, drop in the conductive carbon paste that is stirring, stir in the lump, stirring velocity is controlled at 40～100 rev/mins of low-speed ranges; The cancellation infusion accounts for PTC functional conductive carbon paste gross weight 0～4%, drops in the PTC functional conductive carbon paste that is stirring, and stirs in the lump, stirs after 30～40 minutes, grinds refinement with colloidal mill or conoidal mill, and granularity is controlled at below 100 microns, is finished product.
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| CN2008101532522A CN101407628B (en) | 2008-11-21 | 2008-11-21 | Method for producing water-soluble PTC functional conductive carbon paste |
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| CN2008101532522A CN101407628B (en) | 2008-11-21 | 2008-11-21 | Method for producing water-soluble PTC functional conductive carbon paste |
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| CN101407628B true CN101407628B (en) | 2011-05-04 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101775205B (en) * | 2010-02-09 | 2012-05-09 | 华烁科技股份有限公司 | Anisotropic pressure-sensing conductive rubber and preparation method thereof |
| CN101800090B (en) * | 2010-03-16 | 2011-08-17 | 彩虹集团公司 | Environmental-friendly conductive sizing agent and preparation method thereof |
| CN102329496B (en) * | 2011-06-30 | 2012-10-10 | 苏州新纶超净技术有限公司 | High-conductivity carbon slurry and preparation method thereof |
| CN102558805B (en) * | 2012-02-24 | 2013-11-06 | 芜湖汉昌电子科技有限公司 | Carbon paste with PTC (Positive Temperature Coefficient) characteristics, PTC geothermal film and production process and installation method of PTC geothermal film |
| CN106467412B (en) * | 2016-05-20 | 2020-02-04 | 济南圣泉集团股份有限公司 | PTC inorganic composite material and preparation method and application thereof |
| CN112391097B (en) * | 2019-08-13 | 2022-04-05 | 新材料与产业技术北京研究院 | Water-based PTC conductive coating and preparation method and application thereof |
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| EP0918339A2 (en) * | 1997-11-06 | 1999-05-26 | Acheson Industries, Inc. | Electrical device containing positive temperature coefficient resistor composition and method of manufacturing the device |
| CN1631927A (en) * | 2004-11-17 | 2005-06-29 | 浙江大学 | Macromolecular conductive composite heat sensitive material and method for preparing same |
| CN1970626A (en) * | 2006-11-01 | 2007-05-30 | 淄博奥德美高分子材料有限公司 | Fluorine silicon modified aqueous polyurethane high polymer conductive emulsion |
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2008
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0918339A2 (en) * | 1997-11-06 | 1999-05-26 | Acheson Industries, Inc. | Electrical device containing positive temperature coefficient resistor composition and method of manufacturing the device |
| CN1631927A (en) * | 2004-11-17 | 2005-06-29 | 浙江大学 | Macromolecular conductive composite heat sensitive material and method for preparing same |
| CN1970626A (en) * | 2006-11-01 | 2007-05-30 | 淄博奥德美高分子材料有限公司 | Fluorine silicon modified aqueous polyurethane high polymer conductive emulsion |
Non-Patent Citations (1)
| Title |
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| 胡慧荣.聚氨酯PTC涂层的制备研究.《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅰ辑》.2004,(第03期),B020-81. * |
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