CN103468070A - Conductive nano fluorocarbon coating - Google Patents
Conductive nano fluorocarbon coating Download PDFInfo
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- CN103468070A CN103468070A CN201310418640XA CN201310418640A CN103468070A CN 103468070 A CN103468070 A CN 103468070A CN 201310418640X A CN201310418640X A CN 201310418640XA CN 201310418640 A CN201310418640 A CN 201310418640A CN 103468070 A CN103468070 A CN 103468070A
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Abstract
The invention discloses a conductive nano fluorocarbon coating which is prepared by mixing the raw materials by weight percent: 16-30% of modified nanocarbon tube, 4-10% of modified nanocarbon fiber, 40-60% of polyvinyl fluoride resin, 5-10% of 1-nitro-pyrrolidone, 10-20% of iso-butyl formate, 2-5% of dimethylbenzene, 1-5% of propylene diester diacetate, 0.25-1% of polydimethyl siloxane and 0.25-1% of polymethyl phenyl siloxane. The coating has the advantages that (1) the adding quantity of conductive filler reaches up to 40%, so that the adding quantity is greatly increased; (2) the high temperature resistance and the heat stability are greatly improved, so that the coating can endure large current shock; (3) the coating has excellent corrosion resistance and especially can resist the corrosion of acid soil, so that the service life of the coating reaches 20 years; (4) the coating is good in performances and high in cost performance; (5) the coating is widely applied to corrosion prevention of a grounding grid of a large transformer substation.
Description
Technical field
The invention belongs to the protective system technical field, more precisely, relate to a kind of electrical-conductive nanometer fluorocarbon coating.
Background technology
The ground net zinc-plated carbon steel of drawing materials is in the majority, and this material, in complicated edatope, is corroded inevitable.Especially moist rainy area, the galvanized steel used 3～5 years all can occur by the situation of heavy corrosion, even ruptures, and causes a lot of structure deteriorate and power outage.1), adopt copper or copper sheathed steel material therefore, ground net is anticorrosion is important research topic of power system always, and at present ground net safeguard procedures commonly used have:; 2), utilize negative electrode to implement protection; 3), use friction reducer to fall resistance; 4), use the electrically conducting coating conduction.These safeguard procedures respectively have also defectiveness of advantage.For example galvanic protection, though construction is simple, maintenance cost is large; Use friction reducer, difficulty of construction is large, the condition harshness, and anticorrosion cost is high; Although, and employing copper or copper sheathed steel material are very corrosion-resistant, expensive and contaminated soil, even bring disaster to contiguous steel framed structure galvanic couple.And the recently appearance of conductive anti-corrosion coating has changed this situation, its efficiency is high, it is convenient to construct, and is subject to extensive concern at the earth mat corrosion-resistant field very soon.But: 1), most of electrically conducting coating draw materials ordinary epoxy resin, urethane or acrylic resin, their time in edatope has been grown easy aging, degraded and cracking; 2), conductive filler material Graphite Powder 99, aluminium powder, copper powder, silver powder commonly used all exists electroconductibility not strong, easily oxidation, expensive shortcoming; 3), the resistance to elevated temperatures of these electrically conducting coatings is poor, so that heat up rapidly when earth mat meets with thunder and lightning or short trouble, loses efficacy, and do not reach preservative effect.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, provides the substitute of a kind of electrical-conductive nanometer fluorocarbon coating as traditional ground net protective system, solves the technical barrier that the ground net protective system has conduction, ageing-resistant, resistance to elevated temperatures concurrently.
Technical scheme of the present invention is that a kind of electrical-conductive nanometer fluorocarbon coating provided adopts the raw material of following weight per-cent to mix composition:
The caliber of wherein said modified carbon nano-tubes is Ф 5～100nm, pipe range 0.1～50 μ m; The diameter of section of described modified Nano carbon fiber is Ф 1～50nm, long 1～1000 μ m.
Described modified carbon nano-tubes adopts following raw material and step to be made:
(1), get the CNT (carbon nano-tube) identical with above-mentioned modified carbon nano-tubes weight part, drop in propanol solution, be configured to the propanol solution that mass concentration is 2～8%, perhaps, drop in butanol solution, be configured to the butanol solution that mass concentration is 2～8%, sonic oscillation 20～40min, evenly mix, obtain the CNT (carbon nano-tube) mixed solution;
(2), by the weight ratio of step (1) gained CNT (carbon nano-tube) mixed solution 1-3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2～6%, use oxalic acid to regulate pH value to 8～10, sonic oscillation 10～30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(3), step (2) gained silane coupling agent hydrolyzed solution is added in step (1) gained CNT (carbon nano-tube) mixed solution, stir, insert sonic oscillation 3-10h in 70～90 ℃ of temperature environments and obtain the modified carbon nano-tubes finished product;
Described modified Nano carbon fiber adopts following raw material and step to be made:
(4), get the carbon fiber identical with above-mentioned modified Nano carbon fiber weight part, drop in propanol solution, be configured to the propanol solution that mass concentration is 2～8%, perhaps, drop in butanol solution, be configured to the butanol solution that mass concentration is 2～8%, sonic oscillation 20～40min, evenly mix, obtain the carbon nano fiber mixed solution;
(5), by the weight ratio of step (4) gained carbon nano fiber mixed solution 1-3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2～6%, use oxalic acid to regulate pH value to 8～10, sonic oscillation 10～30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(6), step (5) gained silane coupling agent hydrolyzed solution is added in step (4) gained carbon nano fiber mixed solution, stir, insert sonic oscillation 3-10h in 70～90 ℃ of temperature environments and obtain modified Nano carbon fiber finished product;
The invention has the beneficial effects as follows:
1), the add-on that can make conductive filler material is up to 40%, greatly improved the add-on of conductive filler material.And the mutual bridge joint of CNT (carbon nano-tube) and carbon nano fiber, form the conductive network structure, makes product have therefrom high conductivity, and its volume specific resistance also can reach 1 * 10
-5the Ω cm order of magnitude;
2), the strong bonding force of the fluorine carbon geochemistry in polyfluoroethylene resin is extremely strong, so the use of polyfluoroethylene resin makes product greatly improve high thermal resistance and thermostability, can stand the impact of large electric current;
3), the anti-atmosphere of polyfluoroethylene resin, water-fast, anti-soil function product is obtained good Corrosion resistance energy, the especially corrosion of acid resistance soil, work-ing life can be for 20 years;
4), non-maintaining between the usage period, high comprehensive performance in life cycle management, cost performance is high;
5), be widely used in the strong Grounding Grid of Large Substation of the soil corrosions such as acid soil or saltings anticorrosion.
Embodiment
Embodiment 1: at first, adopting following raw material and step to make caliber is Ф 5nm, the modified carbon nano-tubes that pipe range is 0.1 μ m:
(1), get CNT (carbon nano-tube) 16 ㎏, drop in propanol solution, be configured to the propanol solution that mass concentration is 2%, sonic oscillation 20min, evenly mix, and obtains the CNT (carbon nano-tube) mixed solution;
(2), by the weight ratio of step (1) gained CNT (carbon nano-tube) mixed solution 1%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2%, use oxalic acid to regulate pH value to 8, sonic oscillation 10min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(3), step (2) gained silane coupling agent hydrolyzed solution is added in step (1) gained CNT (carbon nano-tube) mixed solution, stir, insert sonic oscillation 3h in 70～90 ℃ of temperature environments and obtain the modified carbon nano-tubes finished product;
Secondly, adopting following raw material and step to make diameter of section is Ф 1nm, the modified Nano carbon fiber of long 1 μ m:
(4), get carbon fiber 4 ㎏, drop in propanol solution, be configured to the propanol solution that mass concentration is 2%, sonic oscillation 20min, evenly mix, and obtains the carbon nano fiber mixed solution;
(5), by the weight ratio of step (4) gained carbon nano fiber mixed solution 1%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2%, use oxalic acid to regulate pH value to 8, sonic oscillation 10min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(6), step (5) gained silane coupling agent hydrolyzed solution is added in step (4) gained carbon nano fiber mixed solution, stir, insert sonic oscillation 3h in 70～90 ℃ of temperature environments and obtain modified Nano carbon fiber finished product;
Then, adopt the above-mentioned modified carbon nano-tubes of 16 ㎏, the above-mentioned modified Nano carbon fiber of 4 ㎏, 40 ㎏ polyfluoroethylene resins, 5 ㎏ 1-nitro-pyrrole alkane ketone, 10 ㎏ tetryl formates, 2 ㎏ dimethylbenzene, 1 ㎏ oxalic acid propylene diester, 0.25 ㎏ polydimethylsiloxane, 0.25 ㎏ PSI to be mixed and made into the electrical-conductive nanometer fluorocarbon coating.
Embodiment 2: at first, adopting following raw material and step to make caliber is Ф 100nm, the modified carbon nano-tubes that pipe range is 50 μ m:
(1), get CNT (carbon nano-tube) 30 ㎏ and drop in butanol solutions, be configured to the butanol solution that mass concentration is 8%, sonic oscillation 40min, evenly mix, and obtains the CNT (carbon nano-tube) mixed solution;
(2), by the weight ratio of step (1) gained CNT (carbon nano-tube) mixed solution 3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 6%, use oxalic acid to regulate pH value to 10, sonic oscillation 30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(3), step (2) gained silane coupling agent hydrolyzed solution is added in step (1) gained CNT (carbon nano-tube) mixed solution, stir, insert sonic oscillation 10h in 70～90 ℃ of temperature environments and obtain the modified carbon nano-tubes finished product;
Secondly, adopting following raw material and step to make diameter of section is Ф 50nm, the modified Nano carbon fiber of long 1000 μ m:
(4), get carbon fiber 10 ㎏ and drop in butanol solutions, be configured to the butanol solution that mass concentration is 8%, sonic oscillation 40min, evenly mix, and obtains the carbon nano fiber mixed solution;
(5), by the weight ratio of step (4) gained carbon nano fiber mixed solution 3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 6%, use oxalic acid to regulate pH value to 10, sonic oscillation 30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(6), step (5) gained silane coupling agent hydrolyzed solution is added in step (4) gained carbon nano fiber mixed solution, stir, insert sonic oscillation 10h in 70～90 ℃ of temperature environments and obtain modified Nano carbon fiber finished product;
Then, adopt the above-mentioned modified carbon nano-tubes of 30 ㎏, the above-mentioned modified Nano carbon fiber of 10 ㎏, 60 ㎏ polyfluoroethylene resins, 10 ㎏ 3-nitro-pyrrole alkane ketone, the different Ding Zhi of 20 formic acid ㎏, 5 ㎏ dimethylbenzene, 5 ㎏ oxalic acid propylene diesters, 1 ㎏ polydimethylsiloxane, 1 ㎏ PSI to be mixed and made into the electrical-conductive nanometer fluorocarbon coating.
Claims (1)
1. an electrical-conductive nanometer fluorocarbon coating, this coating adopts the raw material of following weight per-cent to mix to form:
The caliber of wherein said modified carbon nano-tubes is Ф 5～100nm, pipe range 0.1～50 μ m; The diameter of section of described modified Nano carbon fiber is Ф 1～50nm, long 1～1000 μ m,
Described modified carbon nano-tubes adopts following raw material and step to be made:
(1), get the CNT (carbon nano-tube) identical with above-mentioned modified carbon nano-tubes weight part, drop in propanol solution, be configured to the propanol solution that mass concentration is 2～8%, perhaps, drop in butanol solution, be configured to the butanol solution that mass concentration is 2～8%, sonic oscillation 20～40min, evenly mix, obtain the CNT (carbon nano-tube) mixed solution;
(2), by the weight ratio of step (1) gained CNT (carbon nano-tube) mixed solution 1-3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2～6%, use oxalic acid to regulate pH value to 8～10, sonic oscillation 10～30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(3), step (2) gained silane coupling agent hydrolyzed solution is added in step (1) gained CNT (carbon nano-tube) mixed solution, stir, insert sonic oscillation 3-10h in 70～90 ℃ of temperature environments and obtain the modified carbon nano-tubes finished product;
Described modified Nano carbon fiber adopts following raw material and step to be made:
(4), get the carbon fiber identical with above-mentioned modified Nano carbon fiber weight part, drop in propanol solution, be configured to the propanol solution that mass concentration is 2～8%, perhaps, drop in butanol solution, be configured to the butanol solution that mass concentration is 2～8%, sonic oscillation 20～40min, evenly mix, obtain the carbon nano fiber mixed solution;
(5), by the weight ratio of step (4) gained carbon nano fiber mixed solution 1-3%, getting silane coupling agent drops in deionized water, be configured to the aqueous solution that mass concentration is 2～6%, use oxalic acid to regulate pH value to 8～10, sonic oscillation 10～30min, make the prehydrolysis in deionized water of thrown silane coupling agent, obtain the silane coupling agent hydrolyzed solution;
(6), step (5) gained silane coupling agent hydrolyzed solution is added in step (4) gained carbon nano fiber mixed solution, stir, insert sonic oscillation 3-10h in 70～90 ℃ of temperature environments and obtain modified Nano carbon fiber finished product.
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| CN201310418640.XA CN103468070B (en) | 2013-09-13 | 2013-09-13 | A kind of electrical-conductive nanometer fluorocarbon coating |
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| CN201310418640.XA CN103468070B (en) | 2013-09-13 | 2013-09-13 | A kind of electrical-conductive nanometer fluorocarbon coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965569A (en) * | 2014-04-23 | 2014-08-06 | 浙江大学 | Method for preparing nanometer modified compound conductive plastic |
| CN106497343A (en) * | 2016-10-25 | 2017-03-15 | 黄远明 | A kind of modified carbon nano-tube anticorrosion and antistatic paint |
Citations (3)
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| CN1490363A (en) * | 2002-10-17 | 2004-04-21 | 沈阳金纳新材料有限公司 | Conductive electromagnetic shielding paint and application thereof |
| CN102618107A (en) * | 2012-03-31 | 2012-08-01 | 深圳市贝特瑞纳米科技有限公司 | Conductive graphite cream and preparation method thereof |
| KR20130085551A (en) * | 2011-12-20 | 2013-07-30 | 비나텍주식회사 | Manufacturing method of slurry for super capacitor providing enhanced capacitance characteristic and super capacitor manufactured using the same and manufacturing method of super capacitor thereof |
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2013
- 2013-09-13 CN CN201310418640.XA patent/CN103468070B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490363A (en) * | 2002-10-17 | 2004-04-21 | 沈阳金纳新材料有限公司 | Conductive electromagnetic shielding paint and application thereof |
| KR20130085551A (en) * | 2011-12-20 | 2013-07-30 | 비나텍주식회사 | Manufacturing method of slurry for super capacitor providing enhanced capacitance characteristic and super capacitor manufactured using the same and manufacturing method of super capacitor thereof |
| CN102618107A (en) * | 2012-03-31 | 2012-08-01 | 深圳市贝特瑞纳米科技有限公司 | Conductive graphite cream and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杜新胜: "导电涂料的研究进展", 《中国涂料》, vol. 24, no. 2, 31 December 2009 (2009-12-31), pages 19 - 22 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965569A (en) * | 2014-04-23 | 2014-08-06 | 浙江大学 | Method for preparing nanometer modified compound conductive plastic |
| CN106497343A (en) * | 2016-10-25 | 2017-03-15 | 黄远明 | A kind of modified carbon nano-tube anticorrosion and antistatic paint |
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| CN103468070B (en) | 2015-09-30 |
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Effective date of registration: 20180807 Address after: 410004 398 new Shao Dong Road, Tianxin District, Changsha, Hunan Co-patentee after: Power Science Research Institute of Hunan Electric Power Co., Ltd. Patentee after: State Grid Hunan Electric Power Co., Ltd. Co-patentee after: State Grid Corporation of China Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: Science Research Institute of Hunan Electric Power Co., Ltd. Patentee before: State Grid Corporation of China Co-patentee before: Hunan Province Xiangdian Test & Research Institute Co., Ltd. |
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