CN105505161A - Graphite-modified water-based conductive coating composition and preparation method thereof - Google Patents
Graphite-modified water-based conductive coating composition and preparation method thereof Download PDFInfo
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- CN105505161A CN105505161A CN201510631390.7A CN201510631390A CN105505161A CN 105505161 A CN105505161 A CN 105505161A CN 201510631390 A CN201510631390 A CN 201510631390A CN 105505161 A CN105505161 A CN 105505161A
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Abstract
The present invention discloses a graphite-modified water-based conductive coating composition comprising water-soluble resin, graphene, graphite, conductive carbon black, a water-based thickener, a film former, a water-based crosslinking coupling agent, a water-based dispersion agent and deionized water; production steps are as follows: (1) preparing a graphene / urethane resin conductive organic carrier, (2) preparing a water-based conductive coating, (3) pouring a mixture of the graphene / urethane resin conductive organic carrier obtained by the step 1 and the water-based conductive coating obtained by the step 2 into a stirrer for sufficiently stirring and mixing for 2 hours to obtain a graphene-modified water-based conductive coating. The graphene-modified water-based conductive coating not only solves the problem of difficult dispersion of graphene microchips and the conductive carbon black in the water-based resin, and is narrow in particle size distribution and well compatible with adhesive resin and high in conductive material content, after a film is formed from the coating, the resistance of a coating layer can be largely reduced, and the prepared conductive coating is good in stability.
Description
Technical field:
The invention belongs to electrically conducting coating preparation method field, particularly a kind of Graphene modified water-soluble conducting paint composite and preparation method thereof.
Background technology:
Electrically conducting coating is the special functional coating developed rapidly with modern science and technology, China begins one's study in the 1950's and applies electrically conducting coating, research and development in recent decades, electrically conducting coating is applied in the multiple military, civilian industrial circles such as electronics, electrical equipment, aviation, chemical industry, printing.
Along with the development of nanotechnology, graphene nano material and matrix compound are obtained conducting polymer composite and just day by day rises; Graphene is as novel conductive fillers, have good conductivity, frictional dissipation little, pollute the advantages such as little, and expanded graphite alkene add the electroconductibility that greatly can improve macromolecular material, reduce its conduction and ooze territory filter value, therefore in Antistatic Paint and conductive polymer composite, there is important using value.
Summary of the invention:
The present invention is directed to above the deficiencies in the prior art, provide a kind of Graphene modified water-soluble conducting paint composite and preparation method thereof.
For achieving the above object, the invention provides
A kind of Graphene modified water-soluble conducting paint composite, is cross-linked coupling agent, aqueous dispersant and deionized water is formed by water soluble resin, Graphene, graphite, conductive carbon black, water-based thickener, membrane-forming agent, water-based; Its weight percent is: water soluble resin 15%-30%, Graphene 0.5%-10%, graphite 5.0 ~ 10%, conductive carbon black 10 ~ 15%, water-based thickener 1.0%-3.0%, water-based are cross-linked coupling agent 2.0%-5.0%, aqueous dispersant 2.0%-5.0%; Deionized water 20%-40%.
A preparation method for Graphene modified water-soluble conducting paint composite, comprises the following steps:
By total weight percent
(1) Graphene/urethane resin conduction organic carrier is prepared: waterborne polyurethane resin 10%, aqueous dispersant 2.5%, deionized water 10%, Graphene 5%, graphite 10% added at normal temperatures and pressures in ball mill and carry out batch mixing ball milling 12 hours, Graphene/urethane resin conduction organic carrier of obtained uniform state.
(2) waterborne conductive coating is prepared: waterborne polyurethane resin 15%, conductive carbon black 15%, aqueous dispersant 2.5%, water-based are cross-linked coupling agent 3%, water-based thickener 2%, deionized water 25%, said mixture is poured in agitator at normal temperatures and pressures and carry out fully being uniformly mixed 1 hour in advance, 1 hour is disperseed through 2000-3000 rev/min of high-speed stirring, re-use three-roll grinder and carry out dispersion treatment, three-roll grinder finally obtains the waterborne conductive coating of outward appearance exquisiteness after carrying out 3-5 grinding through 300 order net filtrations.
(3) the 1st step Graphene/urethane resin conduction organic carrier and the obtained waterborne conductive coating mixture of the 2nd step are poured in agitator be fully uniformly mixed 2 hours, obtain Graphene modified water-soluble electrically conducting coating.
Preferably, in technique scheme, water soluble resin is any one or two or more mixing in waterborne polyurethane resin, water-borne acrylic resin, aqueous epoxy resins.
Preferably, in technique scheme, Graphene is nano-graphene microplate, and particle diameter is 200 nanometer-2 microns.
Preferably, in technique scheme, graphite select in water chestnut sheet graphite, oildag any one.
Preferably, in technique scheme, conductive carbon black is acetylene carbon black.
Preferably, in technique scheme, water-based thickener is any one in association type polyurethanes thickener rheology agent, acrylic emulsion thickener TT-935 and polyurethanes thickening material Exp300.
Preferably, in technique scheme, it is silane coupling agent that water-based is cross-linked coupling agent.
Preferably, in technique scheme, aqueous dispersant is Polyvinylpyrolidone (PVP).
Compared with prior art, the present invention has following beneficial effect:
Patent of the present invention adopts wet grinding technology to prepare Graphene modified water-soluble electrically conducting coating, not only solve graphene microchip and graphitized carbon black in the difficult problem of aqueous resin dispersion, and the narrow diameter distribution of coating, good consistency is had with binding resin, electro-conductive material content is high, the resistance of coating can be reduced to a great extent, the electrically conducting coating good stability of preparation after coating film forming.
Embodiment:
Below the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification sheets and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or integral part, and do not get rid of other element or other integral part.
A preparation method for Graphene modified water-soluble conducting paint composite, making step is:
Embodiment 1:
Calculate by gross weight 100%
(1) Graphene/urethane resin conduction organic carrier is prepared: by waterborne polyurethane resin 10%, nano-graphene microplate 5%, water chestnut sheet graphite 10%, Polyvinylpyrolidone (PVP) 2.5%, deionized water 10%, add in ball mill and carry out batch mixing ball milling 12 hours, Graphene/urethane resin conduction organic carrier of obtained uniform state at normal temperatures and pressures.
(2) waterborne conductive coating is prepared: waterborne polyurethane resin 15%, acetylene carbon black 15%, Polyvinylpyrolidone (PVP) 2.5%, water-based are cross-linked coupling agent 3%, water-based thickener 2%, deionized water 25%, said mixture is poured in agitator at normal temperatures and pressures and carry out fully being uniformly mixed 1 hour in advance, 1 hour is disperseed through 2000-3000 rev/min of high-speed stirring, re-use three-roll grinder and carry out dispersion treatment, three-roll grinder finally obtains the waterborne conductive coating of outward appearance exquisiteness after carrying out 3-5 grinding through 300 order net filtrations.
(3) the 1st step Graphene/urethane resin conduction organic carrier and the obtained waterborne conductive coating mixture of the 2nd step are poured in agitator be fully uniformly mixed 2 hours, obtain Graphene modified water-soluble electrically conducting coating of the present invention.
Embodiment 2:
Calculate by gross weight 100%
(1) Graphene/urethane resin conduction organic carrier is prepared: by waterborne polyurethane resin 10%, nano-graphene microplate 10%, water chestnut sheet graphite 5%, Polyvinylpyrolidone (PVP) 2.5%, deionized water 10%, add in ball mill and carry out batch mixing ball milling 12 hours, Graphene/urethane resin conduction organic carrier of obtained uniform state at normal temperatures and pressures.
(2) waterborne conductive coating is prepared: waterborne polyurethane resin 15%, acetylene carbon black 15%, Polyvinylpyrolidone (PVP) 2.5%, water-based are cross-linked coupling agent 3%, water-based thickener 2%, deionized water 25%, said mixture is poured in agitator at normal temperatures and pressures and carry out fully being uniformly mixed 1 hour in advance, 1 hour is disperseed through 2000-3000 rev/min of high-speed stirring, re-use three-roll grinder and carry out dispersion treatment, three-roll grinder finally obtains the waterborne conductive coating of outward appearance exquisiteness after carrying out 3-5 grinding through 300 order net filtrations.
(3) the 1st step Graphene/urethane resin conduction organic carrier and the obtained waterborne conductive coating mixture of the 2nd step are poured in agitator be fully uniformly mixed 2 hours, obtain Graphene modified water-soluble electrically conducting coating of the present invention.
Compared with prior art, the present invention has following beneficial effect:
Patent of the present invention adopts wet grinding technology to prepare Graphene modified water-soluble electrically conducting coating, not only solve graphene microchip and graphitized carbon black in the difficult problem of aqueous resin dispersion, and the narrow diameter distribution of coating, good consistency is had with binding resin, electro-conductive material content is high, the resistance of coating can be reduced to a great extent, the electrically conducting coating good stability of preparation after coating film forming.
Experimental result: by above-mentioned obtained Graphene modified water-soluble electrically conducting coating, with coating method blade coating in PET film, after heating cure, test its sheet resistance, sticking power and hardness.Result is as shown in table 1.
| Coating is done thick (μm) | Sheet resistance (ohm/) | Sticking power (N) | Hardness | |
| Embodiment 1 | 10 | 150 | 4.1 | 4H |
| Embodiment 2 | 10 | 80 | 4.2 | 4H |
The present invention of the present invention makes Electric radiant Heating Film, electric heating cloth, hot plate also to be had higher far infrared rays it is launched main wave band and is positioned at 2-15 micron, has more the 8-12 micron far infrared rays being suitable for human body.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (9)
1. a Graphene modified water-soluble conducting paint composite, is characterized in that: be cross-linked coupling agent, aqueous dispersant and deionized water formed by water soluble resin, Graphene, graphite, conductive carbon black, water-based thickener, membrane-forming agent, water-based; Its weight percent is: water soluble resin 15%-30%, Graphene 0.5%-10%, graphite 5.0 ~ 10%, conductive carbon black 10 ~ 15%, water-based thickener 1.0%-3.0%, water-based are cross-linked coupling agent 2.0%-5.0%, aqueous dispersant 2.0%-5.0%; Deionized water 20%-40%.
2. a preparation method for Graphene modified water-soluble conducting paint composite, is characterized in that: comprise the following steps
(1) Graphene/urethane resin conduction organic carrier is prepared: waterborne polyurethane resin 10%, aqueous dispersant 2.5%, deionized water 10%, Graphene 5%, graphite 10% added at normal temperatures and pressures in ball mill and carry out batch mixing ball milling 12 hours, Graphene/urethane resin conduction organic carrier of obtained uniform state;
(2) waterborne conductive coating is prepared: waterborne polyurethane resin 15%, conductive carbon black 15%, aqueous dispersant 2.5%, water-based are cross-linked coupling agent 3%, water-based thickener 2%, deionized water 25%, said mixture is poured in agitator at normal temperatures and pressures and carry out fully being uniformly mixed 1 hour in advance, 1 hour is disperseed through 2000-3000 rev/min of high-speed stirring, re-use three-roll grinder and carry out dispersion treatment, three-roll grinder finally obtains the waterborne conductive coating of outward appearance exquisiteness after carrying out 3-5 grinding through 300 order net filtrations;
(3) the 1st step Graphene/urethane resin conduction organic carrier and the obtained waterborne conductive coating mixture of the 2nd step are poured in agitator be fully uniformly mixed 2 hours, obtain Graphene modified water-soluble electrically conducting coating.
3. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: described water soluble resin is any one or two or more mixing in waterborne polyurethane resin, water-borne acrylic resin, aqueous epoxy resins.
4. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, it is characterized in that: described Graphene is nano-graphene microplate, particle diameter is 200 nanometer-2 microns.
5. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: described graphite select in water chestnut sheet graphite, oildag any one.
6. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: described conductive carbon black is acetylene carbon black.
7. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: described water-based thickener is any one in association type polyurethanes thickener rheology agent, acrylic emulsion thickener TT-935 and polyurethanes thickening material Exp300.
8. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: it is silane coupling agent that described water-based is cross-linked coupling agent.
9. a kind of Graphene modified water-soluble conducting paint composite according to claim 1, is characterized in that: described aqueous dispersant is Polyvinylpyrolidone (PVP).
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| CN105969009A (en) * | 2016-05-31 | 2016-09-28 | 无锡伊佩克科技有限公司 | Water-based conductive paint and preparation method thereof |
| CN106336759A (en) * | 2016-08-24 | 2017-01-18 | 上海颐行高分子材料有限公司 | Aqueous acrylate heat-conduction coating material and preparation method thereof |
| CN106519636A (en) * | 2016-11-02 | 2017-03-22 | 广东顺德艺冠云膜科技股份有限公司 | Phytene soft touch film, preparation method and application thereof |
| CN106590400A (en) * | 2016-11-10 | 2017-04-26 | 广东科迪新材料科技有限公司 | Graphene-modified waterborne conductive coating and preparation method thereof |
| CN107151524A (en) * | 2017-07-12 | 2017-09-12 | 合肥展游软件开发有限公司 | A kind of preparation method of electrically-conducting paint for communication apparatus |
| WO2018028362A1 (en) * | 2016-08-09 | 2018-02-15 | 深圳光启高等理工研究院 | Thermally-conductive graphene coating and method for preparing same |
| CN108046842A (en) * | 2017-11-17 | 2018-05-18 | 宿迁南航新材料与装备制造研究院有限公司 | A kind of preparation method of graphene enhancing ceramic fibre |
| CN108129913A (en) * | 2017-12-27 | 2018-06-08 | 深圳市国创珈伟石墨烯科技有限公司 | Watersoluble plumbago alkene electrically conductive ink and preparation method thereof |
| CN108641426A (en) * | 2018-06-07 | 2018-10-12 | 唐山英太石墨烯科技股份有限公司 | Aqueous, environmental protective conductive coating of graphene-containing and preparation method thereof |
| CN108711461A (en) * | 2018-05-22 | 2018-10-26 | 唐山建华科技发展有限责任公司 | Waterborne conductive slurry of graphene-containing and preparation method thereof |
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| CN109135497A (en) * | 2018-06-01 | 2019-01-04 | 湖南国盛石墨科技有限公司 | A kind of kermesinus graphene conductive coating that storage stability is excellent |
| CN109161273A (en) * | 2018-09-14 | 2019-01-08 | 安庆市泽烨新材料技术推广服务有限公司 | Frosting conductive coating |
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| CN108046842A (en) * | 2017-11-17 | 2018-05-18 | 宿迁南航新材料与装备制造研究院有限公司 | A kind of preparation method of graphene enhancing ceramic fibre |
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| CN109233554A (en) * | 2018-06-01 | 2019-01-18 | 湖南国盛石墨科技有限公司 | A kind of conductive coating containing walnut shell modified graphene Polyaniline |
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| CN109321113A (en) * | 2018-09-19 | 2019-02-12 | 梁家庆 | A kind of aqueous polyamide coating and preparation method thereof |
| CN110965333A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Preparation method of water-based antibacterial conductive coating |
| CN109741855A (en) * | 2018-12-29 | 2019-05-10 | 长江润发中科(张家港)纳米科技有限公司 | A kind of graphene conductive slurry and preparation method thereof applied to Electric radiant Heating Film |
| CN109688644A (en) * | 2019-02-18 | 2019-04-26 | 中山市君泽科技有限公司 | One kind being used for graphene far infrared planar heat producing body aqueous slurry |
| CN110628264A (en) * | 2019-08-21 | 2019-12-31 | 厦门大学 | Preparation method of graphene far-infrared additive and far-infrared slurry |
| CN111763459A (en) * | 2020-06-23 | 2020-10-13 | 杭州立兴新材料科技有限公司 | Composite modified electromagnetic shielding water-based paint and preparation method thereof |
| CN116042009A (en) * | 2023-02-10 | 2023-05-02 | 深圳市深赛尔股份有限公司 | Antistatic agent, preparation method and application thereof |
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Application publication date: 20160420 |