CN109877024A - A kind of electrostatic painting process of solar energy backboard - Google Patents
A kind of electrostatic painting process of solar energy backboard Download PDFInfo
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- CN109877024A CN109877024A CN201910300094.7A CN201910300094A CN109877024A CN 109877024 A CN109877024 A CN 109877024A CN 201910300094 A CN201910300094 A CN 201910300094A CN 109877024 A CN109877024 A CN 109877024A
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- base material
- pet base
- solar energy
- electrostatic
- energy backboard
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Abstract
The invention discloses a kind of electrostatic painting process of solar energy backboard, the solar energy backboard includes PET base material, the film layer for being formed in by electrostatic spraying the PET base material upper and lower surface；The electrostatic painting process includes the following steps: 1) PET base material removing surface；2) first drying；3) roller coating conduction liquid；4) secondary drying；5) electrostatic spraying；6) UV photocuring.By the above-mentioned means, the present invention substitutes the mode of existing applied adhesive using electrostatic spraying mode, the good film layer of weatherability, compactness is formed in solar energy backboard substrate upper and lower surface, simple process is easily-controllable, and the feature of environmental protection is good.
Description
Technical field
The present invention relates to polyester application techniques fields, more particularly to a kind of electrostatic painting process of solar energy backboard.
Background technique
Solar energy backboard is located at the back side of solar panel, plays protection and supporting role to cell piece, has reliable
Insulating properties, water preventing ability, resistance to ag(e)ing.Existing solar energy backboard generally has a three-decker, such as application No. is
201110389391.7 Chinese invention patent patent disclose a kind of solar panel and preparation method thereof, the solar energy
Solar panel successively includes weathering layer, structure enhancement layer and weathering layer, passes through adhesive layer between the structure enhancement layer and weathering layer
It is adhesively fixed；The weathering layer is fluorine material layer, and the structure enhancement layer is Kapton；The material of the fluorine material layer
Selected from Kynoar, vinylidene-tetrafluoraoethylene-hexafluoropropylene copolymer, or combinations thereof, the material of the Kapton
Material selected from thermoplastic polyimide, low-temperature setting polyimides, or combinations thereof；The preparation method includes the following steps: that (1) will
Film is made by stretch processes to get structure enhancement layer is arrived in the raw material of the structure enhancement layer；(2) by step (1)
The upper and lower surfaces of structure enhancement layer obtained are respectively coated binder, the heat cure under 130 DEG C of constant temperature
30min makes its degree of cross linking reach 60%-80%；(3) 140 DEG C at a temperature of, weathering layer is bonded in step (2) resulting production
The upper and lower surfaces of object are to get solar cell backboard.The mechanical property of solar cell backboard provided by the invention and
Thermal property is stablized, and resistance to barrier property is prominent, and combination between layers is stronger, and back board structure is more stable, can be used for supporting guarantor
Protect solar battery sheet；And due to the superpower mechanical property of polyimides, stable high and low temperature resistance and excellent exhausted
Edge performance, the service life of solar cell backboard provided by the invention theoretically can achieve 40 years as long as.But this hair
It is bonded under polarity condition between bright structure enhancement layer and weathering layer, is easy layering, especially serious in summer lightening activity, polyamides
Imines be easy it is breakdown so that battery structure damage.It furthermore is viscous by being coated between structure of the invention enhancement layer and weathering layer
Agent connection is tied, such adhesive generally contains the noxious materials such as formaldehyde, so that there is also certain in terms of the feature of environmental protection for technique
Defect.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of electrostatic painting process of solar energy backboard, using electrostatic
The complex method for substituting existing applied adhesive is applied, keeps the combination of solar energy backboard obtained between layers more firm, does not allow
Easily layering, and binder is not used in technique, the feature of environmental protection is good.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of the quiet of solar energy backboard is provided
Electrospray technique, the solar energy backboard include PET base material, by electrostatic spraying are formed in the PET base material upper and lower surface
Film layer；The electrostatic painting process includes the following steps:
1) PET base material removing surface: PET base material was immersed in degreaser, using ultrasonic cleaning 6 ~ 8 minutes；
2) first drying: by step 1), treated that PET base material is placed in dryer, is dried using hot air circulation；
3) roller coating conduction liquid: conductive using upper and lower surface coating silanes of the roll coating model to the PET base material after step 2 drying
Liquid；
4) secondary drying: by step 3), treated that PET base material is placed in dryer again, is dried using hot air circulation；
5) electrostatic spraying: by step 4), treated that PET base material connects anode and is grounded, and the spray gun of two groups of matrix arrangements is connect negative
Pole is simultaneously respectively perpendicular upper and lower surfaces in alignment with PET base material, under the high pressure effect of electrostatic generator, by powdery paints
It is injected in the upper and lower surfaces of PET base material；
6) UV photocuring: 150 DEG C of UV photocurings are carried out to step 5) treated PET base material, enable powdery paints in PET base material
Upper and lower surface be solidified into film layer respectively.
In a preferred embodiment of the present invention, in step 1), the temperature of the degreaser is 30 DEG C.
In a preferred embodiment of the present invention, step 2, in step 4), the hot air circulation drying temperature is 80
℃。
In a preferred embodiment of the present invention, in step 3), the roll coating model is to carry out roller coating using anilox roll,
Its process conditions are as follows: roller coating pressure is 2.0 ~ 2.5kgf/cm2, anilox roll mesh number is 10 ~ 12 mesh, and roll coating speeds are 15 ~ 30m/
min。
In a preferred embodiment of the present invention, in step 5), the process conditions of the electrostatic spraying are as follows: described in setting
The distance on the spray gun of two groups of matrix arrangements to PET base material surface is 10cm, and the partial size of powdery paints is 10 ~ 25 μm.
In a preferred embodiment of the present invention, the film layer with a thickness of 6 ~ 8 μm.
The beneficial effects of the present invention are: the present invention uses electrostatic spraying mode in the upper and lower surface dusty spray of PET base material
Coating obtains film layer in PET base material outer surface, pastes again compared to tradition in solar energy backboard substrate upper and lower surface applied adhesive
The mode of attached fluorine material layer, present invention process do not use binder, so that simple process is easily-controllable, the feature of environmental protection is good；And electrostatic
The conjugation applied between the film layer and PET base material formed is high, can improve the integrally-built stability of backboard；Furthermore without using bonding
Agent is also avoided that backboard yellowing occurs using rear adhesive layer for a long time, so as to further increase solar energy backboard
Service life.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
The embodiment of the present invention includes:
A kind of electrostatic painting process of solar energy backboard, the solar energy backboard include PET base material, are formed in by electrostatic spraying
The film layer of the PET base material upper and lower surface；
Specifically, the electrostatic painting process includes the following steps:
1) PET base material removing surface: PET base material is immersed in the degreaser that temperature is 30 DEG C, using 6 ~ 8 points of ultrasonic cleaning
Clock.
2) first drying: by step 1), treated that PET base material is placed in dryer, is dried using 80 DEG C of hot air circulations
It is dry.
3) silanes roller coating conduction liquid: is coated with using upper and lower surface of the roll coating model to the PET base material after step 2 drying
Conduction liquid；Wherein the roll coating model carries out roller coating, process conditions using anilox roll are as follows: roller coating pressure is 2.0 ~ 2.5kgf/
cm2, anilox roll mesh number is 10 ~ 12 mesh, and roll coating speeds are 15 ~ 30m/min.It can ensure that PET base material or more under this process condition
The conduction liquid of surface coating is uniform, it is ensured that the adhesive force of next step powdery paints.
4) secondary drying: by step 3), treated that PET base material is placed in dryer again, is dried using 80 DEG C of hot air circulations
It is dry.
5) electrostatic spraying: by step 4), treated that PET base material connects anode and is grounded, by the spray gun of two groups of matrix arrangements
It connects cathode and is respectively perpendicular the upper and lower surfaces in alignment with PET base material, under the high pressure effect of electrostatic generator, by powder
Coating is injected in the upper and lower surfaces of PET base material；The wherein process conditions of the electrostatic spraying are as follows: setting two groups of matrix forms
The distance on the spray gun of arrangement to PET base material surface is 10cm, and the partial size of powdery paints is 10 ~ 25 μm.In the present embodiment preferably,
High-weatherability toner coating, such as epoxy powder coating can be used in the powdery paints, and controls partial size 10 ~ 25
μm, the compactness of film layer can be improved.
6) UV photocuring: 150 DEG C of UV photocurings are carried out to step 5) treated PET base material, enable powdery paints in PET
The upper and lower surface of substrate is solidified into film layer respectively.Preferably, the film layer with a thickness of 6 ~ 8 μm.
Present invention discloses a kind of electrostatic painting process of solar energy backboard, substitute existing coating using electrostatic spraying mode
The mode of binder forms the good film layer of weatherability, compactness in solar energy backboard substrate upper and lower surface, and simple process is easily-controllable,
The feature of environmental protection is good；And the conjugation between the film layer and PET base material that electrostatic spraying is formed is high, and it is integrally-built steady to improve backboard
It is qualitative；Furthermore be also avoided that backboard using rear adhesive layer yellowing occurs for a long time without using binder, so as into
The service life of one step raising solar energy backboard.
Furthermore electrostatic painting process of the present invention is also not limited to the surface spraying to photovoltaic backboard, can equally fit
For the surface spraying to other polyester material substrates.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of electrostatic painting process of solar energy backboard, which is characterized in that the solar energy backboard includes PET base material, passes through
Electrostatic spraying is formed in the film layer of the PET base material upper and lower surface；The electrostatic painting process includes the following steps:
1) PET base material removing surface: PET base material was immersed in degreaser, using ultrasonic cleaning 6 ~ 8 minutes；
2) first drying: by step 1), treated that PET base material is placed in dryer, is dried using hot air circulation；
3) roller coating conduction liquid: conductive using upper and lower surface coating silanes of the roll coating model to the PET base material after step 2 drying
Liquid；
4) secondary drying: by step 3), treated that PET base material is placed in dryer again, is dried using hot air circulation；
5) electrostatic spraying: by step 4), treated that PET base material connects anode and is grounded, and the spray gun of two groups of matrix arrangements is connect negative
Pole is simultaneously respectively perpendicular upper and lower surfaces in alignment with PET base material, under the high pressure effect of electrostatic generator, by powdery paints
It is injected in the upper and lower surfaces of PET base material；
6) UV photocuring: 150 DEG C of UV photocurings are carried out to step 5) treated PET base material, enable powdery paints in PET base material
Upper and lower surface be solidified into film layer respectively.
2. the electrostatic painting process of solar energy backboard as described in claim 1, which is characterized in that in step 1), the degreasing
The temperature of liquid is 30 DEG C.
3. the electrostatic painting process of solar energy backboard as described in claim 1, which is characterized in that in step 2, step 4), institute
Stating hot air circulation drying temperature is 80 DEG C.
4. the electrostatic painting process of solar energy backboard as described in claim 1, which is characterized in that in step 3), the roller coating
Mode is to carry out roller coating, process conditions using anilox roll are as follows: roller coating pressure is 2.0 ~ 2.5kgf/cm2, anilox roll mesh number is 10
~ 12 mesh, roll coating speeds are 15 ~ 30m/min.
5. the electrostatic painting process of solar energy backboard as described in claim 1, which is characterized in that in step 5), the electrostatic
The process conditions of spraying are as follows: the distance of the spray gun of setting two groups of matrix arrangements to PET base material surface is 10cm, and powder applies
The partial size of material is 10 ~ 25 μm.
6. the electrostatic painting process of solar energy backboard as described in claim 1, which is characterized in that the film layer with a thickness of 6 ~
8μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300094.7A CN109877024A (en) | 2019-04-15 | 2019-04-15 | A kind of electrostatic painting process of solar energy backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300094.7A CN109877024A (en) | 2019-04-15 | 2019-04-15 | A kind of electrostatic painting process of solar energy backboard |
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| Publication Number | Publication Date |
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| CN109877024A true CN109877024A (en) | 2019-06-14 |
Family
ID=66937337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910300094.7A Pending CN109877024A (en) | 2019-04-15 | 2019-04-15 | A kind of electrostatic painting process of solar energy backboard |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032447A (en) * | 1987-09-25 | 1989-04-19 | 聚塑料株式会社 | The plastic static coating is with conductive agent and have the plastic molded product of electrostatic coating |
| CN101186780A (en) * | 2007-10-24 | 2008-05-28 | 扬州三川实业有限公司 | Ultraviolet light solidifying powdery paints, producing method and applying method thereof |
| CN106311565A (en) * | 2015-06-30 | 2017-01-11 | 富钰精密组件（昆山）有限公司 | Electrostatic spraying method for complex of metal and non-conducting material and shell |
| CN107008634A (en) * | 2017-05-18 | 2017-08-04 | 东莞市旭通达模具塑胶有限公司 | The water paint coating process and coating of a kind of television receiver plastic casing |
| CN107841204A (en) * | 2017-11-03 | 2018-03-27 | 通威太阳能（安徽）有限公司 | A kind of Weather-resistant high reflection rate solar cell backboard film and preparation method thereof |
| CN108384411A (en) * | 2018-02-09 | 2018-08-10 | 杭州五源科技实业有限公司 | A kind of woodwork light curable conductive powdery paints and preparation method thereof |
-
2019
- 2019-04-15 CN CN201910300094.7A patent/CN109877024A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032447A (en) * | 1987-09-25 | 1989-04-19 | 聚塑料株式会社 | The plastic static coating is with conductive agent and have the plastic molded product of electrostatic coating |
| CN101186780A (en) * | 2007-10-24 | 2008-05-28 | 扬州三川实业有限公司 | Ultraviolet light solidifying powdery paints, producing method and applying method thereof |
| CN106311565A (en) * | 2015-06-30 | 2017-01-11 | 富钰精密组件（昆山）有限公司 | Electrostatic spraying method for complex of metal and non-conducting material and shell |
| CN107008634A (en) * | 2017-05-18 | 2017-08-04 | 东莞市旭通达模具塑胶有限公司 | The water paint coating process and coating of a kind of television receiver plastic casing |
| CN107841204A (en) * | 2017-11-03 | 2018-03-27 | 通威太阳能（安徽）有限公司 | A kind of Weather-resistant high reflection rate solar cell backboard film and preparation method thereof |
| CN108384411A (en) * | 2018-02-09 | 2018-08-10 | 杭州五源科技实业有限公司 | A kind of woodwork light curable conductive powdery paints and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘登良: "《塑料橡胶涂料与涂装技术》", 31 January 2001, 化学工业出版社 * |
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