CN106023829B - A kind of LED ad display screens - Google Patents
A kind of LED ad display screens Download PDFInfo
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- CN106023829B CN106023829B CN201610575693.6A CN201610575693A CN106023829B CN 106023829 B CN106023829 B CN 106023829B CN 201610575693 A CN201610575693 A CN 201610575693A CN 106023829 B CN106023829 B CN 106023829B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
This application involves a kind of LED ad display screens, it is internally provided with LED display including frame and the frame, the bottom end of the frame is provided with support column, for electric installation and control device, and the edge of the frame is equipped with heat emission hole, and the surface of the frame and support column is coated with etch resistant layer.
Description
Technical field
This application involves advertisement display field more particularly to a kind of LED ad display screens.
Background technology
LED is the abbreviation of light emitting diode, is a kind of display mode by controlling semiconductor light-emitting-diode, to
Show image, word, animation etc..Currently, many billboards are all made of propagandizing device of the LED display as product, and reach
Good display effect.
However, existing ad display screen is normally at outdoor, environment is complicated, needs to be subjected to pollutant in rainwater and gas
Corrosion, be easy to cause damage, influences using effect and service life.
Invention content
The present invention is intended to provide a kind of LED ad display screens, set forth above to solve the problems, such as.
A kind of LED ad display screens are provided in the embodiment of the present invention, including the inside of frame and the frame is set
It is equipped with LED display, the bottom end of the frame is provided with support column, for electric installation and control device, described to pass through for electric installation
The control device is electrically connected with the LED display；The edge of the frame is equipped with heat emission hole, the frame and support column
Surface is coated with etch resistant layer, and the etch resistant layer thickness is 400~600 μm, and the etch resistant layer is that composite coating painting is conformal
At the composite coating forms etch resistant layer by coating, dry, solidification 20h.
The technical solution that the embodiment of the present invention provides can include the following benefits：
Etch resistant layer is arranged on the surface of display frame and support column in the present invention, and the etch resistant layer has good anti-
Corrosive effect can extend the service life of display screen, set forth above to solve the problems, such as.
The additional aspect of the application and advantage will be set forth in part in the description, and will partly become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
It is exemplary and explanatory, the application can not be limited.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of display screen of the present invention.
Fig. 2 is the production flow diagram of composite coating of the present invention.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
Metal is under the action of surrounding medium, since corruption can occur for chemical reaction, electrochemical reaction or physical dissolution etc.
Erosion.Corrosion of metal problem spread economic every field, in life, day commonly used home appliance surface can occur corrosion and
The reduction service life equally faces the various problems that metal erosion is brought, the anticorrosion to metal in fields such as traffic, machinery, chemical industry
Technology has become the very important problem of Material Field.
Currently, mainly metal material and corrosive environment are kept apart, and then avoid metal using the method for surface covering
Be corroded.According to the difference of covering material, surface covering is divided into metal covering and nonmetallic covering.It is to work as using anticorrosive paint
One of preceding most widely used, most effective anticorrosion technique.The chief component of coating has film forming matter, solvent, color stuffing
And auxiliary agent.
Polyaniline has many advantages, such as synthesis material at low cost, scratch resistance, anticorrosive, is a kind of commonly used anticorrosive to have
Machine conducting polymer, studies have shown that polyaniline, which is added in epoxy resin, can be obviously improved its mechanical performance and antiseptic property,
However, polyaniline compound anticorrosive paint still has the problems such as indissoluble, anticorrosion ability is poor at present, therefore develop and expand polyaniline
Application in corrosion-resistant field has very important significance.
Application scenarios one：
Fig. 1 shows a kind of LED ad display screens that embodiments herein is related to, as shown in Figure 1, including frame 1 with
And the frame 1 is internally provided with LED display 2, the bottom end of the frame 1 is provided with support column 3, for electric installation 4 and control
Device 5 processed, it is described to be electrically connected with the LED display 2 by the control device 5 for electric installation 4；The edge of the frame 1
Equipped with heat emission hole, the surface of the frame 1 and support column 3 is coated with etch resistant layer, and the etch resistant layer thickness is 400~600 μ
M, the etch resistant layer are that composite coating applies to be formed, and the composite coating forms anticorrosive by coating, dry, solidification 20h
Layer.
The embodiment of the present invention on the surface of the frame and support column by being coated with etch resistant layer, the etch resistant layer
With good anti-corrosion effects, the service life of display screen can be extended.
Preferably, the composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, plating
The composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer.
In the composite coating of the application, using the composite fibre that copper carbon fiber and polyaniline fiber form as network layer,
On the one hand, copper carbon fiber has excellent flexibility and electric conductivity, is conducive to the transmission of conductive ion；Simultaneously copper carbon fiber with
Polyaniline fiber is used in mixed way, and the two interacts to form network structure so that the application composite coating is in mechanical properties, enhancing
The suppleness of coating, impact resistance, while the composite network structure enhances the wearability of composite coating, increases and uses the longevity
Life；In terms of electrochemistry, corynebacterium copper carbon fiber mutually splices, and forms conductive network, for conductive in corrosion electrolytic solution
Ion has electric screening action, enhances the corrosion resistance of coating；On the other hand, in the application composite coating network layer effectively every
Contact from matrix and corrosion electrolyte, has physical shielding effect, hinders diffusion of the corrosive ion to matrix, improves matrix
Corrosion resistance.
Preferably, the composite coating is using normal propyl alcohol as antifreeze.
In the application composite coating, normal propyl alcohol is added as antifreeze so that at low temperature, which still has
There is comparable corrosion resistance, meanwhile, frost resistance and composite fibre act synergistically, at low temperature the mechanical performance of composite coating film
Decline relatively low, produces good effect.
It is further preferred that the preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper as electrode, using electrochemical method on its surface
Film, copper film thickness are 3 μm, are then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, surpasses
It under sound, is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, by FeCl36H2O
It is dissolved in distilled water, forms solution B, be then uniformly mixed A, B, wherein A, B volume ratio are 2:3, A, B mixed solution are existed
Reaction 10h is stood under the conditions of ice-water bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water into
Property, then with ethyl alcohol to be washed till filtrate colourless, and product is dried to 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, constantly stirs
It mixes, while acidification 2h, is then washed with deionized water to neutrality, 5h is dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in water
78 DEG C of processing 30min, are then added 0.5g Al nano-particles in bath, and magnetic agitation 1h obtains the uniform suspension of Al particles；
The ammonium persulfate of 10g is dissolved in 100ml hydrochloric acid solutions, magnetic agitation 1h, then utilizes separatory funnel by ammonium persulfate solution
It is added drop-wise in aniline solution, being stirred continuously makes it react 4h, is then allowed to stand filtering, will pulverize after filtrate washing drying
End is to get polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
The application composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate,
Aluminium triphosphate, talcum powder and barium sulfate are as color stuffing, the composite fibre conduct of copper carbon fiber and polyaniline fiber composition
Network layer, n-butanol and N-Methyl pyrrolidone are as mixed solvent, and silane coupling agent is as auxiliary agent, and polyamide 6 50 is as solid
Agent, normal propyl alcohol is as antifreeze；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones is added,
Magnetic agitation 30min, is then sonicated 2h；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, by solution in two beakers
Mixing stirs 2h, sequentially adds 3 parts of 4 parts of normal propyl alcohol, 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, then
2 parts of 50 curing agent of polyamide 6 are added after stirring 1h, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 400~
600μm。
Preferably, in terms of the experiment effect of the application composite coating, the corrosion resistance of the application composite coating：It is anticorrosive
Performance is evaluated by electrochemical means, will coat different-thickness composite coating of the present invention
Matrix be placed in the Na2S solution of 4wt%, stand 300h, test resistance change rate, it is found that
The corrosion of the application composite coating is smaller from electric current, can effectively prevent corrosion of the corrosion electrolyte to matrix,
And the anti-freezing property of the composite coating is good.
Application scenarios two：
Fig. 1 shows a kind of LED ad display screens that embodiments herein is related to, as shown in Figure 1, including frame 1 with
And the frame 1 is internally provided with LED display 2, the bottom end of the frame 1 is provided with support column 3, for electric installation 4 and control
Device 5 processed, it is described to be electrically connected with the LED display 2 by the control device 5 for electric installation 4；The edge of the frame 1
Equipped with heat emission hole, the surface of the frame 1 and support column 3 is coated with etch resistant layer, and the etch resistant layer thickness is 400~600 μ
M, the etch resistant layer are that composite coating applies to be formed, and the composite coating forms anticorrosive by coating, dry, solidification 20h
Layer.
The embodiment of the present invention on the surface of the frame and support column by being coated with etch resistant layer, the etch resistant layer
With good anti-corrosion effects, the service life of display screen can be extended.
Preferably, the composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, plating
The composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer.
In the composite coating of the application, using the composite fibre that copper carbon fiber and polyaniline fiber form as network layer,
On the one hand, copper carbon fiber has excellent flexibility and electric conductivity, is conducive to the transmission of conductive ion；Simultaneously copper carbon fiber with
Polyaniline fiber is used in mixed way, and the two interacts to form network structure so that the application composite coating is in mechanical properties, enhancing
The suppleness of coating, impact resistance, while the composite network structure enhances the wearability of composite coating, increases and uses the longevity
Life；In terms of electrochemistry, corynebacterium copper carbon fiber mutually splices, and forms conductive network, for conductive in corrosion electrolytic solution
Ion has electric screening action, enhances the corrosion resistance of coating；On the other hand, in the application composite coating network layer effectively every
Contact from matrix and corrosion electrolyte, has physical shielding effect, hinders diffusion of the corrosive ion to matrix, improves matrix
Corrosion resistance.
It is further preferred that the preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper as electrode, using electrochemical method on its surface
Film, copper film thickness are 3 μm, are then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, surpasses
It under sound, is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, by FeCl36H2O
It is dissolved in distilled water, forms solution B, be then uniformly mixed A, B, wherein A, B volume ratio are 2:3, A, B mixed solution are existed
Reaction 10h is stood under the conditions of ice-water bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water into
Property, then with ethyl alcohol to be washed till filtrate colourless, and product is dried to 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, constantly stirs
It mixes, while acidification 2h, is then washed with deionized water to neutrality, 5h is dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in water
78 DEG C of processing 30min, are then added 0.5g Al nano-particles in bath, and magnetic agitation 1h obtains the uniform suspension of Al particles；
The ammonium persulfate of 10g is dissolved in 100ml hydrochloric acid solutions, magnetic agitation 1h, then utilizes separatory funnel by ammonium persulfate solution
It is added drop-wise in aniline solution, being stirred continuously makes it react 4h, is then allowed to stand filtering, will pulverize after filtrate washing drying
End is to get polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
The application composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate,
Aluminium triphosphate, talcum powder and barium sulfate are as color stuffing, the composite fibre conduct of copper carbon fiber and polyaniline fiber composition
Network layer, n-butanol and N-Methyl pyrrolidone are as mixed solvent, and silane coupling agent is as auxiliary agent, and polyamide 6 50 is as solid
Agent；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones is added,
Magnetic agitation 30min, is then sonicated 2h；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, by solution in two beakers
Mixing stirs 2h, sequentially adds 3 parts of 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, adds after being stirred for 1h
Enter 2 parts of 50 curing agent of polyamide 6, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 400~
600μm。
Preferably, in terms of the experiment effect of the application composite coating, the corrosion resistance of the application composite coating：It is anticorrosive
Performance is evaluated by electrochemical means, and the Na2S that the matrix for coating different-thickness composite coating of the present invention is placed on to 4wt% is molten
In liquid, 300h, test resistance change rate are stood, it is found that the corrosion of the application composite coating is smaller from electric current, can effectively prevent corruption
Lose corrosion of the electrolyte to matrix.
Application scenarios three：
Fig. 1 shows a kind of LED ad display screens that embodiments herein is related to, as shown in Figure 1, including frame 1 with
And the frame 1 is internally provided with LED display 2, the bottom end of the frame 1 is provided with support column 3, for electric installation 4 and control
Device 5 processed, it is described to be electrically connected with the LED display 2 by the control device 5 for electric installation 4；The edge of the frame 1
Equipped with heat emission hole, the surface of the frame 1 and support column 3 is coated with etch resistant layer, and the etch resistant layer thickness is 0~200 μm,
The etch resistant layer is that composite coating applies to be formed, and the composite coating forms etch resistant layer by coating, dry, solidification 20h.
The embodiment of the present invention on the surface of the frame and support column by being coated with etch resistant layer, the etch resistant layer
With good anti-corrosion effects, the service life of display screen can be extended.
Preferably, the composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, plating
The composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer.
In the composite coating of the application, using the composite fibre that copper carbon fiber and polyaniline fiber form as network layer,
On the one hand, copper carbon fiber has excellent flexibility and electric conductivity, is conducive to the transmission of conductive ion；Simultaneously copper carbon fiber with
Polyaniline fiber is used in mixed way, and the two interacts to form network structure so that the application composite coating is in mechanical properties, enhancing
The suppleness of coating, impact resistance, while the composite network structure enhances the wearability of composite coating, increases and uses the longevity
Life；In terms of electrochemistry, corynebacterium copper carbon fiber mutually splices, and forms conductive network, for conductive in corrosion electrolytic solution
Ion has electric screening action, enhances the corrosion resistance of coating；On the other hand, in the application composite coating network layer effectively every
Contact from matrix and corrosion electrolyte, has physical shielding effect, hinders diffusion of the corrosive ion to matrix, improves matrix
Corrosion resistance.
Preferably, the composite coating is using normal propyl alcohol as antifreeze.
In the application composite coating, normal propyl alcohol is added as antifreeze so that at low temperature, which still has
There is comparable corrosion resistance, meanwhile, frost resistance and composite fibre act synergistically, at low temperature the mechanical performance of composite coating film
Decline relatively low, produces good effect.
It is further preferred that the preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper as electrode, using electrochemical method on its surface
Film, copper film thickness are 3 μm, are then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, surpasses
It under sound, is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, by FeCl36H2O
It is dissolved in distilled water, forms solution B, be then uniformly mixed A, B, wherein A, B volume ratio are 2:3, A, B mixed solution are existed
Reaction 10h is stood under the conditions of ice-water bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water into
Property, then with ethyl alcohol to be washed till filtrate colourless, and product is dried to 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, constantly stirs
It mixes, while acidification 2h, is then washed with deionized water to neutrality, 5h is dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in water
78 DEG C of processing 30min, are then added 0.5g Al nano-particles in bath, and magnetic agitation 1h obtains the uniform suspension of Al particles；
The ammonium persulfate of 10g is dissolved in 100ml hydrochloric acid solutions, magnetic agitation 1h, then utilizes separatory funnel by ammonium persulfate solution
It is added drop-wise in aniline solution, being stirred continuously makes it react 4h, is then allowed to stand filtering, will pulverize after filtrate washing drying
End is to get polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
The application composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate,
Aluminium triphosphate, talcum powder and barium sulfate are as color stuffing, the composite fibre conduct of copper carbon fiber and polyaniline fiber composition
Network layer, n-butanol and N-Methyl pyrrolidone are as mixed solvent, and silane coupling agent is as auxiliary agent, and polyamide 6 50 is as solid
Agent, normal propyl alcohol is as antifreeze；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones is added,
Magnetic agitation 30min, is then sonicated 2h；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, by solution in two beakers
Mixing stirs 2h, sequentially adds 3 parts of 4 parts of normal propyl alcohol, 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, then
2 parts of 50 curing agent of polyamide 6 are added after stirring 1h, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 0~200 μ
m。
Preferably, in terms of the experiment effect of the application composite coating, the corrosion resistance of the application composite coating：It is anticorrosive
Performance is evaluated by electrochemical means, and the Na2S that the matrix for coating different-thickness composite coating of the present invention is placed on to 4wt% is molten
In liquid, 300h, test resistance change rate are stood, it is found that the corrosion of the application composite coating is smaller from electric current, can effectively prevent corruption
Corrosion of the electrolyte to matrix is lost, and the anti-freezing property of the composite coating is good.
Application scenarios four：
Fig. 1 shows a kind of LED ad display screens that embodiments herein is related to, as shown in Figure 1, including frame 1 with
And the frame 1 is internally provided with LED display 2, the bottom end of the frame 1 is provided with support column 3, for electric installation 4 and control
Device 5 processed, it is described to be electrically connected with the LED display 2 by the control device 5 for electric installation 4；The edge of the frame 1
Equipped with heat emission hole, the surface of the frame 1 and support column 3 is coated with etch resistant layer, and the etch resistant layer thickness is 200~400 μ
M, the etch resistant layer are that composite coating applies to be formed, and the composite coating forms anticorrosive by coating, dry, solidification 20h
Layer.
The embodiment of the present invention on the surface of the frame and support column by being coated with etch resistant layer, the etch resistant layer
With good anti-corrosion effects, the service life of display screen can be extended.
Preferably, the composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, plating
The composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer.
In the composite coating of the application, using the composite fibre that copper carbon fiber and polyaniline fiber form as network layer,
On the one hand, copper carbon fiber has excellent flexibility and electric conductivity, is conducive to the transmission of conductive ion；Simultaneously copper carbon fiber with
Polyaniline fiber is used in mixed way, and the two interacts to form network structure so that the application composite coating is in mechanical properties, enhancing
The suppleness of coating, impact resistance, while the composite network structure enhances the wearability of composite coating, increases and uses the longevity
Life；In terms of electrochemistry, corynebacterium copper carbon fiber mutually splices, and forms conductive network, for conductive in corrosion electrolytic solution
Ion has electric screening action, enhances the corrosion resistance of coating；On the other hand, in the application composite coating network layer effectively every
Contact from matrix and corrosion electrolyte, has physical shielding effect, hinders diffusion of the corrosive ion to matrix, improves matrix
Corrosion resistance.
Preferably, the composite coating is using normal propyl alcohol as antifreeze.
In the application composite coating, normal propyl alcohol is added as antifreeze so that at low temperature, which still has
There is comparable corrosion resistance, meanwhile, frost resistance and composite fibre act synergistically, at low temperature the mechanical performance of composite coating film
Decline relatively low, produces good effect.
It is further preferred that the preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper as electrode, using electrochemical method on its surface
Film, copper film thickness are 3 μm, are then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, surpasses
It under sound, is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, by FeCl36H2O
It is dissolved in distilled water, forms solution B, be then uniformly mixed A, B, wherein A, B volume ratio are 2:3, A, B mixed solution are existed
Reaction 10h is stood under the conditions of ice-water bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water into
Property, then with ethyl alcohol to be washed till filtrate colourless, and product is dried to 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, constantly stirs
It mixes, while acidification 2h, is then washed with deionized water to neutrality, 5h is dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in water
78 DEG C of processing 30min, are then added 0.5g Al nano-particles in bath, and magnetic agitation 1h obtains the uniform suspension of Al particles；
The ammonium persulfate of 10g is dissolved in 100ml hydrochloric acid solutions, magnetic agitation 1h, then utilizes separatory funnel by ammonium persulfate solution
It is added drop-wise in aniline solution, being stirred continuously makes it react 4h, is then allowed to stand filtering, will pulverize after filtrate washing drying
End is to get polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
The application composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate,
Aluminium triphosphate, talcum powder and barium sulfate are as color stuffing, the composite fibre conduct of copper carbon fiber and polyaniline fiber composition
Network layer, n-butanol and N-Methyl pyrrolidone are as mixed solvent, and silane coupling agent is as auxiliary agent, and polyamide 6 50 is as solid
Agent, normal propyl alcohol is as antifreeze；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones is added,
Magnetic agitation 30min, is then sonicated 2h；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, by solution in two beakers
Mixing stirs 2h, sequentially adds 3 parts of 4 parts of normal propyl alcohol, 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, then
2 parts of 50 curing agent of polyamide 6 are added after stirring 1h, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 200~
400μm。
Preferably, in terms of the experiment effect of the application composite coating, the corrosion resistance of the application composite coating：It is anticorrosive
Performance is evaluated by electrochemical means, and the Na2S that the matrix for coating different-thickness composite coating of the present invention is placed on to 4wt% is molten
In liquid, 300h, test resistance change rate are stood, it is found that the corrosion of the application composite coating is smaller from electric current, can effectively prevent corruption
Corrosion of the electrolyte to matrix is lost, and the anti-freezing property of the composite coating is good.
Application scenarios five：
Fig. 1 shows a kind of LED ad display screens that embodiments herein is related to, as shown in Figure 1, including frame 1 with
And the frame 1 is internally provided with LED display 2, the bottom end of the frame 1 is provided with support column 3, for electric installation 4 and control
Device 5 processed, it is described to be electrically connected with the LED display 2 by the control device 5 for electric installation 4；The edge of the frame 1
Equipped with heat emission hole, the surface of the frame 1 and support column 3 is coated with etch resistant layer, and the etch resistant layer thickness is 600~800 μ
M, the etch resistant layer are that composite coating applies to be formed, and the composite coating forms anticorrosive by coating, dry, solidification 20h
Layer.
The embodiment of the present invention on the surface of the frame and support column by being coated with etch resistant layer, the etch resistant layer
With good anti-corrosion effects, the service life of display screen can be extended.
Preferably, the composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, plating
The composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer.
In the composite coating of the application, using the composite fibre that copper carbon fiber and polyaniline fiber form as network layer,
On the one hand, copper carbon fiber has excellent flexibility and electric conductivity, is conducive to the transmission of conductive ion；Simultaneously copper carbon fiber with
Polyaniline fiber is used in mixed way, and the two interacts to form network structure so that the application composite coating is in mechanical properties, enhancing
The suppleness of coating, impact resistance, while the composite network structure enhances the wearability of composite coating, increases and uses the longevity
Life；In terms of electrochemistry, corynebacterium copper carbon fiber mutually splices, and forms conductive network, for conductive in corrosion electrolytic solution
Ion has electric screening action, enhances the corrosion resistance of coating；On the other hand, in the application composite coating network layer effectively every
Contact from matrix and corrosion electrolyte, has physical shielding effect, hinders diffusion of the corrosive ion to matrix, improves matrix
Corrosion resistance.
Preferably, the composite coating is using normal propyl alcohol as antifreeze.
In the application composite coating, normal propyl alcohol is added as antifreeze so that at low temperature, which still has
There is comparable corrosion resistance, meanwhile, frost resistance and composite fibre act synergistically, at low temperature the mechanical performance of composite coating film
Decline relatively low, produces good effect.
It is further preferred that the preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper as electrode, using electrochemical method on its surface
Film, copper film thickness are 3 μm, are then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, surpasses
It under sound, is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, by FeCl36H2O
It is dissolved in distilled water, forms solution B, be then uniformly mixed A, B, wherein A, B volume ratio are 2:3, A, B mixed solution are existed
Reaction 10h is stood under the conditions of ice-water bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water into
Property, then with ethyl alcohol to be washed till filtrate colourless, and product is dried to 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, constantly stirs
It mixes, while acidification 2h, is then washed with deionized water to neutrality, 5h is dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in water
78 DEG C of processing 30min, are then added 0.5g Al nano-particles in bath, and magnetic agitation 1h obtains the uniform suspension of Al particles；
The ammonium persulfate of 10g is dissolved in 100ml hydrochloric acid solutions, magnetic agitation 1h, then utilizes separatory funnel by ammonium persulfate solution
It is added drop-wise in aniline solution, being stirred continuously makes it react 4h, is then allowed to stand filtering, will pulverize after filtrate washing drying
End is to get polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
The application composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate,
Aluminium triphosphate, talcum powder and barium sulfate are as color stuffing, the composite fibre conduct of copper carbon fiber and polyaniline fiber composition
Network layer, n-butanol and N-Methyl pyrrolidone are as mixed solvent, and silane coupling agent is as auxiliary agent, and polyamide 6 50 is as solid
Agent, normal propyl alcohol is as antifreeze；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones is added,
Magnetic agitation 30min, is then sonicated 2h；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, by solution in two beakers
Mixing stirs 2h, sequentially adds 3 parts of 4 parts of normal propyl alcohol, 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, then
2 parts of 50 curing agent of polyamide 6 are added after stirring 1h, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 600~
800μm。
Preferably, in terms of the experiment effect of the application composite coating, the corrosion resistance of the application composite coating：It is anticorrosive
Performance is evaluated by electrochemical means, and the Na2S that the matrix for coating different-thickness composite coating of the present invention is placed on to 4wt% is molten
In liquid, 300h, test resistance change rate are stood, it is found that the corrosion of the application composite coating is smaller from electric current, can effectively prevent corruption
Corrosion of the electrolyte to matrix is lost, and the anti-freezing property of the composite coating is good.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the present invention
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and includes the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited in the precision architectures for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (1)
1. a kind of LED ad display screens, including frame and the frame are internally provided with LED display, the frame
Bottom end is provided with support column, for electric installation and control device, which is characterized in that it is described for electric installation by the control device with
The LED display electrical connection；The edge of the frame is equipped with heat emission hole, and the surface of the frame and support column is coated with anti-corruption
Lose layer；
The etch resistant layer thickness is 400~600 μm；
The etch resistant layer is that composite coating applies to be formed, and the composite coating forms anti-corruption by coating, dry, solidification 20h
Lose layer；
The composite coating is using epoxy resin as film forming matter, and polyaniline/Al nano-particles are as filler, copper carbon fiber and poly-
The composite fibre of aniline fiber composition is as network layer, and the composite coating is using normal propyl alcohol as antifreeze；
The preparation process of the composite coating is as follows：
Step 1 prepares copper carbon fiber：
Carbon fiber is taken, a diameter of 30~60 μm, carbon fiber plates one layer of copper film as electrode, using electrochemical method on its surface,
Copper film thickness is 3 μm, is then cut to 3~5mm length；
Step 2 prepares polyaniline fiber：
It is 1 to take volume ratio:Aniline, is dissolved in distilled water by 60 aniline and distilled water under the action of inorganic acid, under ultrasound,
It is uniformly mixed, forms solution A, it is 1 then to take mass ratio:50 FeCl36H2O and distilled water, FeCl36H2O is dissolved
In distilled water, solution B is formed, is then uniformly mixed A, B, wherein A, B volume ratio are 2:3, by A, B mixed solution in ice water
Reaction 10h is stood under the conditions of bath, obtains bottle green product, and reaction acquired solution filtering is first washed with deionized water to neutrality, then
It is colourless it to be washed till filtrate with ethyl alcohol, product is dried 30h in drying box, obtains polyaniline fiber；
Then, copper carbon fiber and polyaniline fiber, mass ratio 1 are taken:2, it puts it into dilute hydrochloric acid solution, is stirred continuously, together
When acidification 2h, be then washed with deionized water to neutrality, 5h be dried in drying box, obtain composite fibre；
Step 3 prepares polyaniline/Al nano-particles：
It takes the neopelex of 3g to be dissolved into 200ml deionized waters first, the aniline of 3ml is added, in a water bath
78 DEG C of processing 30min, are then added 0.5g Al nano-particles, magnetic agitation 1h obtains the uniform suspension of Al particles；By 10g
Ammonium persulfate be dissolved in 100ml hydrochloric acid solutions, then ammonium persulfate solution is added drop-wise to by magnetic agitation 1h using separatory funnel
In aniline solution, be stirred continuously make its react 4h, be then allowed to stand filtering, by filtrate washing dry after grind into powder to get
Polyaniline/Al nano-particle powders；
Step 4 prepares composite coating：
Composite coating using epoxy resin as film forming matter, polyaniline/Al nano-particles as filler, trbasic zinc phosphate, aluminium triphosphate,
Talcum powder and barium sulfate are as color stuffing, and the composite fibre of copper carbon fiber and polyaniline fiber composition is as network layer, positive fourth
As mixed solvent, silane coupling agent is used as curing agent, normal propyl alcohol as auxiliary agent, polyamide 6 50 for alcohol and N-Methyl pyrrolidone
As antifreeze；
It takes 5 parts of polyanilines/Al nano-particles and 9 parts of composite fibre to be placed in beaker, 60 parts of N-Methyl pyrrolidones, magnetic force is added
30min is stirred, 2h is then sonicated；
Then 10 parts of epoxy resin and 6 parts of n-butanols are put into another beaker, magnetic agitation 1h, solution in two beakers is mixed
It closes, stirs 2h, sequentially add 3 parts of 4 parts of normal propyl alcohol, 1 part of trbasic zinc phosphate, 2 parts of aluminium triphosphate, 1 part of talcum powder and barium sulfate, then stir
2 parts of 50 curing agent of polyamide 6 are added after mixing 1h, the composite coating of the application is obtained after mechanical agitation 2h；
The composite coating is coated in target object surface, cures 12h after dry, and after solidification, coating layer thickness is 400~600 μm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142211A (en) * | 2011-05-09 | 2011-08-03 | 利亚德光电股份有限公司 | LED (light-emitting diode) display device |
| CN102460542A (en) * | 2009-05-29 | 2012-05-16 | 路易斯·安东尼奥·塞达 | Advertising panel |
| CN203055366U (en) * | 2013-01-21 | 2013-07-10 | 湖北爱商光电股份有限公司 | Movable light-emitting diode (LED) display screen |
| CN103680331A (en) * | 2012-09-09 | 2014-03-26 | 山东耀国新能源科技有限公司 | Outdoor LED (light-emitting diode) screen device using solar energy as power supply |
| CN205158850U (en) * | 2015-12-04 | 2016-04-13 | 智愚 | With city information linkage platform |
| CN205334891U (en) * | 2016-01-15 | 2016-06-22 | 富顺光电科技股份有限公司 | Light emitting diode (LED) display screen with heat dissipation structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739079U (en) * | 1993-12-24 | 1995-07-14 | 廣治 入原 | Advertising cloth with LED |
| KR100681385B1 (en) * | 2006-05-09 | 2007-02-15 | (주)베이직테크 | The led indication device for multi vision |
-
2016
- 2016-07-18 CN CN201610575693.6A patent/CN106023829B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102460542A (en) * | 2009-05-29 | 2012-05-16 | 路易斯·安东尼奥·塞达 | Advertising panel |
| CN102142211A (en) * | 2011-05-09 | 2011-08-03 | 利亚德光电股份有限公司 | LED (light-emitting diode) display device |
| CN103680331A (en) * | 2012-09-09 | 2014-03-26 | 山东耀国新能源科技有限公司 | Outdoor LED (light-emitting diode) screen device using solar energy as power supply |
| CN203055366U (en) * | 2013-01-21 | 2013-07-10 | 湖北爱商光电股份有限公司 | Movable light-emitting diode (LED) display screen |
| CN205158850U (en) * | 2015-12-04 | 2016-04-13 | 智愚 | With city information linkage platform |
| CN205334891U (en) * | 2016-01-15 | 2016-06-22 | 富顺光电科技股份有限公司 | Light emitting diode (LED) display screen with heat dissipation structure |
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| CN106023829A (en) | 2016-10-12 |
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Effective date of registration: 20180810 Address after: 325000 A1 four four - five building of electronic and Electrical Technology Park, No. 1, Ningxiang Road, Dongtou, Zhejiang. Applicant after: Wenzhou Lian Xin Chong Chuang Space Service Co., Ltd. Applicant after: Wenzhou Dongtou XinDa Electrical Appliance Co., Ltd. Address before: No. 32, Zhenhai District, Zhejiang Province, Zhenhai District, Drum Tower East Road, Ningbo, Zhejiang Applicant before: Wei Xingfei |
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Denomination of invention: A LED advertising display screen Effective date of registration: 20201125 Granted publication date: 20180925 Pledgee: Dongtou Bank of China Limited Pledgor: WENZHOU TONGTOU XINDA ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2020330001024 |