CN103789755A - Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device - Google Patents
Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device Download PDFInfo
- Publication number
- CN103789755A CN103789755A CN201410039123.6A CN201410039123A CN103789755A CN 103789755 A CN103789755 A CN 103789755A CN 201410039123 A CN201410039123 A CN 201410039123A CN 103789755 A CN103789755 A CN 103789755A
- Authority
- CN
- China
- Prior art keywords
- aluminium foil
- polyimide resin
- atomization
- prepared
- composite solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Laminated Bodies (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a method for preparing a huge dual-side flexible aluminum foil by spraying a compound solution through an atomizing and powder-spraying device. The method comprises the following steps: (1) preparing a compound liquid: dissolving a monomer of polyimide resin to obtain a polyimide resin solution, adding PTC (Positive Temperature Coefficient) powder into the polyimide resin solution, and mixing uniformly; (2) heating the aluminum foil to 100-400 DEG C through a heating device, and spraying the compound solution prepared in the step (1) onto the aluminum foil by using the atomizing and powder-spraying device to form a coating of polyimide resin compound PTC liquid; (3) baking the aluminum foil onto which the polyimide resin compound PTC liquid coating is sprayed in the step (2), and performing a cross-linking reaction to obtain the huge dual-side flexible aluminum foil. Compared with the prior art, the method has the advantages that the machining process is simple and convenient, the production efficiency and yield are increased, the thickness consistence of a product is high, and the prepared huge dual-side flexible aluminum foil is high in reliability, quick and accurate in the thermosensitive reaction, and convenient for adjusting the volume.
Description
Technical field
The present invention relates to the preparation method of double-faced flexible aluminium foil, relate in particular to a kind of atomization dusting device and spray the method that composite solution is prepared jumbo double-faced flexible aluminium foil.
Background technology
Along with scientific and technical develop rapidly, social every profession and trade is matrix material, electronic material particularly, and decorative material etc. increase day by day to the demand of functional aluminium foil.Functional aluminium foil has become the critical material of the PCB that plays support, interconnection components and parts effect in the functional energy and electronic system product at present, and it is called " neural network " of electronic product signal and power transmission, communication.Aluminium foil is as the base mateiral of electronic industry, and the development of PCB technology is being followed in its development always, and PCB technology is along with the with rapid changepl. never-ending changes and improvements of electronic product improves constantly.The development of IT product technology has promoted PCB towards multiple stratification, slimming, densification, high speed, highly reliableization, functionalization future development, and it is boundless that therefore exploitation has the aluminium foil market prospect of high-performance, high quality, high reliability, functionalization more.
Since the people such as the Heyman of Philips company of nineteen fifty Holland find can to obtain positive temperature coefficient (PTC) characteristic after BaTiO3 is ceramic semiconductor, people are more and more deep to its understanding.Meanwhile, also just increasingly extensive in its application aspect, be penetrated into the every field such as daily life, industrial or agricultural technology, military science, communication, aerospace.PTC thermistor Heating element is the modern product down to high-tech tip in future.It is widely used in light industry, house, traffic, space flight, agricultural, medical treatment, environmental protection, mining, civilian apparatus etc., and it,, compared with the Heating elements such as nickel, chromium silk or far infrared, has advantages of remarkable.When apply interchange or volts DS intensification at PTC element, below Curie-point temperature, resistivity is very low; Once when surmounting Curie-point temperature, resistivity increases suddenly, make its electric current drop to stationary value, reach A.T.C, constant temperature object.Not rubescent when PTC element heating, the flames of anger (resistance wire rubescent and have naked light), nonflammable.When PTC component ambient temperature exceeds limit value, its power drops to equilibrium value automatically, can not produce danger of combustion.The energy input adoption rate formula of PTC element, current limiting effect, also saves electric power than the switched attenuator switched-mode energy input of the Heating elements such as nichrome wire.Ptc material has two kinds of macromolecular material class and ceramic-like, ceramic-like PTC element this as oxide compound, the high temperature oxidation drawback of Ni-Cr free silk, does not have the frangible phenomenon of infrared tube yet, the life-span is long.And multi-hole type is longer than the anapsid life-span.PTC element itself is temperature automatically controlled, does not need separately to add A.T.C line unit.Multi-hole type PTC does not more need other heat abstractors, does not need to use conductive resin yet.PTC element can normally use under low pressure (6-36 volt) and high pressure (110-240 volt).Low pressure PTC element is applicable to all kinds of low voltage well heaters, instrument low temp compensating, the well heater on automobile and on computer peripheral device.High pressure P TC element is applicable to the heating of following electric installation: electric thermal-insulation plate, shoe baking device, thermosol gelgun, electric cooker, electric shoes, electric mosquito heater, intravenous injection heating, light-weight plastic closing machine, steam hair comb, steam generator, humidifier, curler, videocorder, duplicating machine, vending machine, hot-air screen, hand warmer, tea drier, Water pipe heating device, travelling clothes-drying machine, finish-baking room for automobile, liquefied gas bottle well heater, shower, beauty care device, Electric heating table, baby bottle thermostat, electric heating moxibustion instrument, electric hot water bottle, electric blanket etc.
The appearance of ptc material, the fast not and capacity problem of this two aspect not greatly of the speed that can solve traditional switch.Along with updating of scientific and technical development and technique, the characteristic of PTC element will be more and more perfect, its normality can will be further improved by galvanization, may cause a field technology revolution of traditional switch in AC and DC field, also have a wide range of applications for linear quadratic control equipment, it will reduce the manufacturing cost of electronics greatly, improves economy, the reliability of electronic system operation.
Ptc material is processed due to barium titanate ceramics material, and the control of tradition processing homogeneity is more difficult, has limited the application of ptc material.
Tradition preparation PTC components and parts are due to the restriction of technique, and PTC components and parts and electrode are processed respectively, then weld or are cemented to device with pole plate, take Miniature component as main, there are no the report of jumbo ultra-thin function aluminium foil processing.
Summary of the invention
For problems of the prior art, the invention provides the method that the compound PTC liquid of a kind of polyimide resin is prepared jumbo double-faced flexible aluminium foil, the method course of processing is easy, can enhance productivity and acceptance rate.
For achieving the above object, the present invention is by the following technical solutions:
A kind of atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: the monomer of polyimide resin makes polyimide resin solution after dissolving, PTC powder is added to polyimide resin solution, mix; (2) by heating unit, aluminium foil is heated to 100-400 ℃, utilizes spraying equipment on aluminium foil, to spray the composite solution that step (1) makes, on aluminium foil, form the coating of the compound PTC liquid of polyimide resin; (3) baking procedure (2) sprayed the aluminium foil of the compound PTC liquid coating of polyimide resin, arrived jumbo double-faced flexible aluminium foil through crosslinking reaction.
Described aluminium foil is electrolytic aluminum foil or hot pressing aluminium foil.
Described step (1) ptc material is carbon black, carbon fiber, graphite flake, silver, copper sheet, silver-colored copper-clad nano particle, barium titanate micro mist, the leaded mass percent barium titanate micro mist that is 1.0-1.5% or the barium titanate micro mist that is 1.8-2.2% containing strontium mass percent.
In described step (1), the monomer of polyimide resin is aminopropane or biphenyl acid anhydrides, and described monomer adopts ultrasonic wave to carry out composite while mixing with PTC powder after dissolving.
In described step (2), the thickness of aluminium foil is 3-70 μ m.
The thickness of the compound PTC liquid coating of polyimide resin forming on aluminium foil in described step (2) is 1-10 μ m.
In described step (3), crosslinking reaction is: ultraviolet light cross-linking reaction, microwave crosslinking reaction, ir-crosslinkable reaction, crosslinking electron beam irradiation reaction, radiation crosslinking reaction or heat cross-linking reaction.
In described step (3), baking is carried out at Long Yaozhong, experiences respectively 160 ℃, and 200 ℃, 250 ℃, 300 ℃, 350 ℃ of humidity provinces, each humidity province baking time is 1-30 minute.
The thickness of the jumbo double-faced flexible aluminium foil that described step (3) makes is 5-90 μ m.
Compared with prior art, the course of processing of the present invention is easy, can enhance productivity and acceptance rate, and product thickness consistence is strong, and the jumbo double-faced flexible aluminium foil property of fine qualities making is high, and thermosensitive response speed is fast, accurate and capacity is easy to adjust; The present invention is take ultra-thin aluminum foil as base material, utilize spraying technology, process respectively one deck ptc material on aluminium foil two sides, form jumbo double-faced flexible aluminium foil functional material, meet the application demand of the every field such as daily life, industrial or agricultural technology, military science, communication, aerospace.
Accompanying drawing explanation
Fig. 1 is spraying coating process schema of the present invention.
embodiment
As shown in Figure 1, the present embodiment atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: get aminopropane 93g, be dissolved in 1000g methyl nitrosourea and prepare solution, this solution with water is bathed cooling, under nitrogen protection, add successively biphenyl acid anhydrides 73.7g, mixed solution is returned to room temperature, continue to stir 3 hours, carry out polyreaction, obtain the thermoplastic polyimide resin precursor solution of thickness, 140g carbon fiber is added in above solution ultrasonic in ultrasonic wave and stirred two hours, make composite solution, (2) be that the electrolytic aluminum foil of 5 μ m is emitted through unwinding device 1 by thickness, by heating unit 2, the electrolytic aluminum foil of emitting is heated to 100 ° of C, 1.3 meters of fabric widths, on the atomization dusting device 3 of long 16 meters, spray 600 meters continuously with the speed of 50 ms/min, control the flow of composite solution by the flowrate control valve 4 arranging on atomization dusting device, making curing coating layer thickness is 2.5 μ m, cooling through refrigerating unit 5, then enter wrap-up 6, the double-face spray painting of the solution that completes the compound PTC of polyimide resin on electrolytic aluminum foil, (3) electrolytic aluminum foil in wrap-up is batched out in the imperial kiln that is contained in 50 meters long, experience successively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ are heated, each 10 minutes of each humidity province, completes sub-amidation, makes 600 meters of packages long through ultraviolet light cross-linking reaction, 1.3 meters of fabric widths, thickness is the jumbo double-faced flexible electrolytic aluminum foil of 10 μ m.
Embodiment 2
The present embodiment atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: get aminopropane 93g, be dissolved in 1000g methyl nitrosourea and prepare solution, this solution with water is bathed cooling, under nitrogen protection, add successively biphenyl acid anhydrides 73.7g, mixed solution is returned to room temperature, continue to stir 3 hours, carry out polyreaction, obtain the thermoplastic polyimide resin precursor solution of thickness, 140g carbon black is added in above solution ultrasonic in ultrasonic wave and stirred two hours, make composite coating liquid, (2) be that the electrolytic aluminum foil of 3 μ m is emitted through unwinding device by thickness, by heating unit, the electrolytic aluminum foil of emitting is heated to 150 ° of C, 1.3 meters of fabric widths, on the plasma coating machine of long 16 meters, spray 600 meters continuously with the speed of 50 ms/min, by the flow of the flowrate control valve control composite solution that arranges on atomization dusting device, making curing coating layer thickness is 1 μ m, cooling through refrigerating unit, then enter wrap-up, complete the double-face spray painting of the compound PTC liquid of polyimide resin on electrolytic aluminum foil, (3) electrolytic aluminum foil in wrap-up is batched out in the imperial kiln that is contained in 50 meters long, experience successively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ are heated, each 1 minute of each humidity province, completes sub-amidation, makes 600 meters of packages long through ultraviolet light cross-linking reaction, 1.3 meters of fabric widths, thickness is the jumbo double-faced flexible electrolytic aluminum foil of 5 μ m.
Embodiment 3
The present embodiment atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: get aminopropane 93g, be dissolved in 1000g methyl nitrosourea and prepare solution, this solution with water is bathed cooling, under nitrogen protection, add successively biphenyl acid anhydrides 73.7g, mixed solution is returned to room temperature, continue to stir 3 hours, carry out polyreaction, obtain the thermoplastic polyimide resin precursor solution of thickness, 100g graphite flake is added in above solution ultrasonic in ultrasonic wave and stirred two hours, make composite solution, (2) be that the hot pressing aluminium foil of 70 μ m is emitted through unwinding device by thickness, by heating unit, the hot pressing aluminium foil of emitting is heated to 250 ° of C, 1.3 meters of fabric widths, on the atomization dusting device of long 16 meters, spray 600 meters continuously with the speed of 50 ms/min, by the flow of the flowrate control valve control composite solution that arranges on atomization dusting device, making curing coating layer thickness is 10 μ m, cooling through refrigerating unit, then enter wrap-up, complete the double-face spray painting of the compound PTC liquid of polyimide resin on hot pressing aluminium foil, (3) the hot pressing aluminum foil coil in wrap-up is taken out in the imperial kiln that is contained in 50 meters long, experience successively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ are heated, each 20 minutes of each humidity province, completes sub-amidation, makes 600 meters of packages long through ir-crosslinkable reaction, 1.3 meters of fabric widths, thickness is the jumbo double-faced flexible hot pressing aluminium foil of 90 μ m.
Embodiment 4
The present embodiment atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: get aminopropane 93g, be dissolved in 1000g methyl nitrosourea and prepare solution, this solution with water is bathed cooling, under nitrogen protection, add successively biphenyl acid anhydrides 73.7g, mixed solution is returned to room temperature, continue to stir 3 hours, carry out polyreaction, obtain the thermoplastic polyimide resin precursor solution of thickness, 150g graphite flake is added in above solution ultrasonic in ultrasonic wave and stirred two hours, make composite solution, (2) be that the electrolytic aluminum foil of 30 μ m is emitted through unwinding device by thickness, by heating unit, the electrolytic aluminum foil of emitting is heated to 300 ° of C, 1.3 meters of fabric widths, on the atomization dusting device of long 16 meters, spray 600 meters continuously with the speed of 50 ms/min, by the flow of the flowrate control valve control composite solution that arranges on atomization dusting device, making curing coating layer thickness is 5 μ m, cooling through refrigerating unit, then enter wrap-up, complete the double-face spray painting of the compound PTC liquid of polyimide resin on electrolytic aluminum foil, (3) electrolytic aluminum foil in wrap-up is batched out in the imperial kiln that is contained in 50 meters long, experience successively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ are heated, each 25 minutes of each humidity province, completes sub-amidation, makes 600 meters of packages long through heat cross-linking reaction, 1.3 meters of fabric widths, thickness is the jumbo double-faced flexible electrolytic aluminum foil of 40 μ m.
The present embodiment atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, comprise the following steps: (1) prepares composite solution: get aminopropane 93g, be dissolved in 1000g methyl nitrosourea and prepare solution, this solution with water is bathed cooling, under nitrogen protection, add successively biphenyl acid anhydrides 73.7g, mixed solution is returned to room temperature, continue to stir 3 hours, carry out polyreaction, obtain the thermoplastic polyimide resin precursor solution of thickness, 50g graphite flake is added in above solution ultrasonic in ultrasonic wave and stirred two hours, make composite solution, (2) be that the hot pressing aluminium foil of 50 μ m is emitted through unwinding device by thickness, by heating unit, the hot pressing aluminium foil of emitting is heated to 400 ° of C, 1.3 meters of fabric widths, on the plasma coating machine of long 16 meters, spray 600 meters continuously with the speed of 50 ms/min, by the flow of the flowrate control valve control composite solution that arranges on atomization dusting device, making curing coating layer thickness is 5 μ m, cooling through refrigerating unit, then enter wrap-up, complete the double-face spray painting of the compound PTC liquid of polyimide resin on hot pressing aluminium foil, (3) the hot pressing aluminum foil coil in wrap-up is taken out in the imperial kiln that is contained in 50 meters long, experience successively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ are heated, each 25 minutes of each humidity province, completes sub-amidation, makes 600 meters of packages long through heat cross-linking reaction, 1.3 meters of fabric widths, thickness is the jumbo double-faced flexible hot pressing aluminium foil of 60 μ m.
Claims (9)
1. an atomization dusting device sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that comprising the following steps: (1) prepares composite solution: the monomer of polyimide resin makes polyimide resin solution after dissolving, PTC powder is added to polyimide resin solution, mix; (2) by heating unit, aluminium foil is heated to 100-400 ℃, utilizes atomization dusting device on aluminium foil, to spray the composite solution that step (1) makes, on aluminium foil, form the coating of the compound PTC liquid of polyimide resin; (3) baking procedure (2) sprayed the aluminium foil of the compound PTC liquid coating of polyimide resin, arrived jumbo double-faced flexible aluminium foil through crosslinking reaction.
2. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: described aluminium foil is electrolytic aluminum foil or hot pressing aluminium foil.
3. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: described step (1) ptc material is carbon black, carbon fiber, graphite flake, silver, copper sheet, silver-colored copper-clad nano particle, barium titanate micro mist, the leaded mass percent barium titanate micro mist that is 1.0-1.5% or the barium titanate micro mist that is 1.8-2.2% containing strontium mass percent.
4. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: in described step (1), the monomer of polyimide resin is aminopropane or biphenyl acid anhydrides, described monomer adopts ultrasonic wave to carry out composite while mixing with PTC powder after dissolving.
5. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: in described step (2), the thickness of aluminium foil is 3-70 μ m.
6. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: the thickness of the compound PTC liquid coating of polyimide resin forming on aluminium foil in described step (2) is 1-10 μ m.
7. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: in described step (3), crosslinking reaction is: ultraviolet light cross-linking reaction, microwave crosslinking reaction, ir-crosslinkable reaction, crosslinking electron beam irradiation reaction, radiation crosslinking reaction or heat cross-linking reaction.
8. atomization dusting device according to claim 1 sprays the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: in described step (3), baking is carried out at Long Yaozhong, experience respectively 160 ℃, 200 ℃, 250 ℃, 300 ℃, 350 ℃ of humidity provinces, each humidity province baking time is 1-30 minute.
9. spray according to the arbitrary described atomization dusting device of claim 1-8 the method that composite solution is prepared jumbo double-faced flexible aluminium foil, it is characterized in that: the thickness of the jumbo double-faced flexible aluminium foil that described step (3) makes is 5-90 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039123.6A CN103789755A (en) | 2014-01-27 | 2014-01-27 | Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039123.6A CN103789755A (en) | 2014-01-27 | 2014-01-27 | Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103789755A true CN103789755A (en) | 2014-05-14 |
Family
ID=50665801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039123.6A Pending CN103789755A (en) | 2014-01-27 | 2014-01-27 | Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103789755A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724859A (en) * | 2022-06-09 | 2022-07-08 | 南通海星电子股份有限公司 | Preparation process of polyimide-aluminum composite foil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101276940A (en) * | 2007-03-28 | 2008-10-01 | 松下电器产业株式会社 | Nonaqueous electrolyte secondary battery and method for manufacturing the same |
| CN101466544A (en) * | 2006-04-18 | 2009-06-24 | 宇部兴产株式会社 | Polyimide film for coating metal and metal-laminated polyimide film |
| CN101887960A (en) * | 2010-07-13 | 2010-11-17 | 清华大学 | Lithium ion battery pole ear and lithium ion battery with same |
| CN102806723A (en) * | 2012-08-09 | 2012-12-05 | 广东生益科技股份有限公司 | Double-sided flexible copper clad laminate and manufacturing method thereof |
-
2014
- 2014-01-27 CN CN201410039123.6A patent/CN103789755A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466544A (en) * | 2006-04-18 | 2009-06-24 | 宇部兴产株式会社 | Polyimide film for coating metal and metal-laminated polyimide film |
| CN101276940A (en) * | 2007-03-28 | 2008-10-01 | 松下电器产业株式会社 | Nonaqueous electrolyte secondary battery and method for manufacturing the same |
| CN101887960A (en) * | 2010-07-13 | 2010-11-17 | 清华大学 | Lithium ion battery pole ear and lithium ion battery with same |
| CN102806723A (en) * | 2012-08-09 | 2012-12-05 | 广东生益科技股份有限公司 | Double-sided flexible copper clad laminate and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724859A (en) * | 2022-06-09 | 2022-07-08 | 南通海星电子股份有限公司 | Preparation process of polyimide-aluminum composite foil |
| CN114724859B (en) * | 2022-06-09 | 2022-08-12 | 南通海星电子股份有限公司 | Preparation process of polyimide-aluminum composite foil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103794801B (en) | Plasma spray coating macromolecule compound PTC powder prepares the method for lithium battery collector | |
| CN106384617B (en) | The preparation method and film of a kind of graphene/copper nano-wire laminated film | |
| CN103449423A (en) | Graphene heat conducting membrane and preparation method thereof | |
| CN105315795A (en) | Intelligent high-temperature-resistant far infrared conductive heating energy-saving material | |
| CN103794802A (en) | Method for preparing lithium battery current collector by electrostatic coating polymer composite PTC powder | |
| CN104080208A (en) | Manufacturing method of electrothermal film | |
| CN108503940B (en) | A kind of low Curie point PTC organic composite material and preparation method thereof | |
| CN106111499A (en) | A kind of electrical heating ice-phobic coating and preparation method thereof | |
| CN110381614B (en) | Far infrared heating material, preparation method of far infrared heating body and far infrared heating body | |
| CN106810915B (en) | A kind of novel magnetic exothermic paint | |
| CN103789755A (en) | Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device | |
| CN103785602A (en) | Method for preparing jumbo double-sided flexible aluminum foil through electrostatic coating of composite solution | |
| CN103786402B (en) | Atomization dusting device sprays the method that composite solution prepares jumbo double-faced flexible Copper Foil | |
| CN103811096B (en) | Method for preparing double-faced flexible aluminum foil by electrostatic coating of polymer composite PTC (positive temperature coefficient) powder | |
| CN103805936A (en) | Method for preparing extremely large double-sided flexible aluminum foil by lasma spraying composite solution | |
| CN108601113A (en) | A kind of graphite Electric radiant Heating Film and its preparation method and application | |
| CN103789712B (en) | Plasma spraying polymer compound PTC powder prepares the method for double-faced flexible aluminium foil | |
| CN203457334U (en) | Mica heating plate | |
| CN103786415A (en) | Method for preparing huge two-sided flexible copper foil with plasma spraying complex solution | |
| CN203678562U (en) | Electrostatic PTC film coating machine | |
| CN103786403A (en) | Method for preparing wide-breadth double-sided flexible copper foils using electrostatic coating complex solution | |
| CN103805935A (en) | Method for preparing double-face flexible copper foil by plasma spraying polymer-based composite PTC (Positive Temperature Coefficient) powder | |
| CN103789762A (en) | Method for preparing flexible double-sided aluminum foil by spraying polymer composite positive temperature coefficient (PTC) powder through powder spraying device | |
| CN103785593A (en) | Method for preparing double-sided flexible copper foil by sprinkling polymer composite PTC powder through powder sprinkling device | |
| CN103785594B (en) | Method for preparing double-sided flexible copper foil by electrostatically coating polymer composite PTC powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140514 |
|
| RJ01 | Rejection of invention patent application after publication |