CN117799271A - Flexible solar photovoltaic backboard and preparation method thereof - Google Patents
Flexible solar photovoltaic backboard and preparation method thereof Download PDFInfo
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- CN117799271A CN117799271A CN202311869319.3A CN202311869319A CN117799271A CN 117799271 A CN117799271 A CN 117799271A CN 202311869319 A CN202311869319 A CN 202311869319A CN 117799271 A CN117799271 A CN 117799271A
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- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 claims abstract description 51
- 239000002313 adhesive film Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 239000011241 protective layer Substances 0.000 claims abstract description 19
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011737 fluorine Substances 0.000 claims abstract description 18
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- 238000000034 method Methods 0.000 claims description 7
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 5
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- 238000001125 extrusion Methods 0.000 claims description 4
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Laminated Bodies (AREA)
Abstract
The invention discloses a flexible solar photovoltaic backboard and a preparation method thereof, the flexible solar photovoltaic backboard comprises a protective layer, an upper insulating layer, a supporting layer and a lower insulating layer from top to bottom, wherein the protective layer is made of a layer of fluorine-containing material, the upper insulating layer and the lower insulating layer are made of PET and PP double-layer adhesive films, the supporting layer is made of continuous fiber reinforced thermoplastic composite materials, the fluorine-containing material is covered on the surfaces of PET films of the upper insulating layer, the PP film surfaces of the upper insulating layer and the lower insulating layer are adhered to one side of the supporting layer, and the PET surface of the lower insulating layer is positioned at the lowest layer. The solar cell panel has the advantages of light weight, good shape following property, voltage breakdown resistance, low cost and sheet structure, and can effectively reduce the cost and the installation cost of the whole solar cell panel.
Description
Technical Field
The invention relates to the field of solar cell module back plates, in particular to a flexible solar photovoltaic back plate and a preparation method thereof.
Background
The back plate material in the solar cell module needs to have certain performance requirements in the outdoor long-term use process, including voltage breakdown resistance, low water vapor transmittance, hydrolysis resistance, damp heat resistance and the like. In addition, the back sheet is required to have high mechanical strength, good dimensional stability, and high insulation to protect and support the solar cell for a long period of time.
At present, the traditional photovoltaic module comprises glass, a crystalline silicon battery, a polyester film containing fluorocarbon paint and a back plate supporting material of metal or composite material. The traditional photovoltaic material is used in the field, is difficult to install due to heavy weight, has poor snow pressure resistance and is easy to fail in hail experiments; when traditional photovoltaic materials are used for building roofs, the support is often placed on the roof together with concrete piers, so that the waterproof materials of the roofs are easy to damage, and the problem of roof water leakage occurs. Therefore, the traditional photovoltaic module backboard mainly solves the problems of heavy weight, insufficient bearing, incapability of adapting to various complex shapes, curved surface lamination and the like.
Disclosure of Invention
The invention aims to solve the problems and provide a flexible solar photovoltaic backboard and a preparation method thereof. Compared with the prior art, the technical scheme mainly solves the technical problems of performance requirements such as voltage breakdown resistance, low water vapor transmittance, hydrolysis resistance, wet heat resistance and the like; meanwhile, the composite material has light weight, high mechanical strength, good dimensional stability and high insulativity; the solar cell can be protected and supported for a long time, and the requirements of special-shaped lamination are met.
The invention is realized by the following technical scheme:
the invention discloses a flexible solar photovoltaic backboard, which comprises a protective layer, an upper insulating layer, a supporting layer and a lower insulating layer from top to bottom, wherein the protective layer is made of a layer of fluorine-containing material, the upper insulating layer and the lower insulating layer are made of PET and PP double-layer adhesive films, the supporting layer is made of a continuous fiber reinforced thermoplastic composite material, the fluorine-containing material covers the surface of the PET film of the upper insulating layer, the PP film surfaces of the upper insulating layer and the lower insulating layer are adhered with one side of the supporting layer, and the PET surface of the lower insulating layer is positioned at the lowest layer. The protective layer can protect the solar cell panel from the influence of external environment, and the upper insulating layer and the lower insulating layer can prevent current from leaking from the backboard; and the support layer ensures the strength of the backboard and supports and protects the solar cell. The PET layer has the characteristics of hydrolysis resistance, oxidation resistance, uniformity and the like; the PP layer has the characteristics of high adhesion, 121 ℃ softening resistance, oxidation resistance and the like.
As a further improvement, the fluorine-containing material of the present invention is 50g/m 2 PVF or PVDF film of (C) or 10g/m 2 Fluorocarbon paint coating of (2). The protective layer solves the problem of hydrolysis of the PET adhesive film, and can ensure the integrity of the PET adhesive film.
As a further improvement, the PET and PP double-layer adhesive films of the upper insulating layer and the lower insulating layer are prepared by film blowing and biaxial stretching, and stretching forces in the longitudinal and transverse directions are ensured in the preparation process so as to improve the strength of the co-extrusion adhesive film.
As a further improvement, the continuous fiber reinforced thermoplastic composite material of the supporting layer is formed by compounding more than three layers of continuous fiber reinforced thermoplastic resin sheets, wherein the continuous fiber reinforced thermoplastic resin sheets are formed by impregnating resin and continuous fibers, and the gram weight is 200g/m 2 The flame retardance reaches the B1 level.
As a further improvement, the continuous fiber proportion in the continuous fiber reinforced thermoplastic resin sheet of the present invention is 55 to 70%; the resin in the continuous fiber reinforced thermoplastic resin sheet is PP, PET, PA material containing flame retardant, and the continuous fibers are glass fiber, basalt fiber, carbon fiber and other materials.
As a further improvement, the proportion of the continuous fibers is 65-70%, and the continuous fibers are continuous glass fibers impregnated by PET.
The invention also discloses a preparation method of the flexible solar photovoltaic backboard, which comprises the following steps: the method comprises the steps of firstly covering a fluorine-containing material on the surface of a PET film of an upper insulating layer PET and a PP double-layer adhesive film, and then compounding the material, the continuous fiber reinforced thermoplastic composite material, the lower insulating layer PET and the PP double-layer adhesive film together through hot pressing, wherein the PP surfaces of the upper insulating layer PET and the lower insulating layer PET and the PP double-layer adhesive film are contacted with the surface of the continuous fiber reinforced thermoplastic composite material, and are compounded together through hot pressing, the compounding temperature is 170-200 ℃, the pressure is 50-80N, and the PP adhesive films in the upper insulating layer and the lower insulating layer and the continuous fiber reinforced thermoplastic composite material are fully fused and combined.
As a further improvement, the PP surfaces of the upper insulating layer and the lower insulating layer of the present invention are corona treated. For better adhesion.
As a further improvement, the continuous fiber reinforced thermoplastic composite material is formed by compounding more than three layers of continuous fiber reinforced thermoplastic resin sheets, and the compounding mode is as follows:
the continuous fibers in each layer of continuous fiber reinforced thermoplastic resin sheet are unidirectionally oriented, the continuous fiber reinforced thermoplastic resin sheets are vertically stacked by 90 degrees or stacked by 0 degrees in the same direction, namely, the continuous fiber reinforced thermoplastic resin sheets are staggered and stacked by 90 degrees, the compounding temperature is 200-220 ℃, and the pressure is 80-120N so as to achieve full melting among layers, and the multi-layer continuous fiber reinforced thermoplastic resin sheets are combined into a single whole. Stacking angles of 0 ° and 90 °,0 ° and 90 ° refer to two different azimuth or orientation angles: 0 ° refers to the angle measured along the strip rolling direction, i.e. the direction parallel to the strip surface; by 90 deg. is meant the angle measured perpendicular to the direction of strip rolling, i.e. perpendicular to the strip surface,
as a further improvement, the invention relates to a continuous fiber reinforced thermoplastic composite material comprising:
when three layers are compounded: compounding together by hot pressing in a combination mode of 0 degree/90 degree/0 degree, wherein the compounding temperature is 200-220 ℃ and the pressure is 80-120N;
four layers are compounded: compounding together by hot pressing in a combination mode of 0 degree/90 degree/0 degree/90 degree or 0 degree/90 degree/0 degree, wherein the compounding temperature is 200-220 ℃ and the pressure is 100-120N;
five layers are compounded together through hot pressing in a combination mode of 0 degree/90 degree/0 degree or 0 degree/90 degree/0 degree, and the compounding temperature is 200-220 ℃ and the pressure is 100-120N.
The grammage of each layer may be the same or different.
The beneficial effects of the invention are as follows:
1. the solar cell has high mechanical strength and good dimensional stability, and can protect and support the solar cell for a long time. The backboard has high mechanical strength, can bear external impact and pressure, has good dimensional stability, is not easy to deform, and can pass hail resistance experiments.
2. Has high insulation and good shape following performance, and can meet the requirements of special-shaped lamination. Light weight and good shape following property: compared with the traditional glass backboard, the soft solar backboard has the advantages of portability, softness, easiness in processing and the like. The solar panel has light weight, can lighten the weight of the whole solar panel, and can adapt to various complex shapes and curved surfaces.
The PET/PP co-extrusion adhesive film has the performances of voltage breakdown resistance, low water vapor transmittance, hydrolysis resistance, damp heat resistance and the like, and can be used outdoors for a long time. Voltage breakdown capability: the solar cell module has high insulation performance and good voltage breakdown resistance, and the voltage breakdown resistance is more than or equal to 50KV, so that the solar cell module can be effectively protected; low water vapor transmission rate: the PET/PP co-extrusion adhesive film has lower water vapor transmittance, can prevent water from penetrating into the solar cell module, and ensures the normal operation of the solar cell module; hydrolysis and wet heat resistance: the fluorine-containing material can protect the inner layer from moisture and damp and hot environment in the long-term outdoor use process.
4. The fluorine-containing layer of the backboard has the functions of ageing resistance, UV resistance, oxidation resistance and the like, and has the condition of outdoor long-term exposure use.
5. Low cost: the back plate material with the thin plate structure can effectively reduce the cost and the installation cost of the whole solar cell panel.
In summary, compared with the prior art, the flexible sheet-shaped solar photovoltaic backboard has the performances of voltage breakdown resistance, low water vapor transmittance, hydrolysis resistance, damp heat resistance and the like, has high mechanical strength, good dimensional stability, high insulativity and good shape following property, can protect and support the solar cell for a long time, and meets the requirements of special-shaped lamination.
Due to the advancement of the technical scheme, the invention can be widely applied to the solar photovoltaic industry. The flexible solar photovoltaic backboard has the performances of voltage breakdown resistance, low water vapor transmittance, hydrolysis resistance, damp heat resistance and the like, has the characteristics of high mechanical strength, good dimensional stability, high insulativity and good shape following property, can protect and support the solar cell for a long time, and meets the requirements of special-shaped lamination.
The technical scheme can be applied to the fields of solar photovoltaic power stations, solar photovoltaic building integration, solar photovoltaic carport, solar photovoltaic caravan clean energy and the like. In a solar photovoltaic power station, the laminar back plate can be used as a protection and support material of a solar cell module, so that the stability and durability of the solar cell module are effectively improved, and the power generation efficiency of a photovoltaic power generation system is improved. In the solar photovoltaic building integration, the flaky backboard can meet the special-shaped fitting requirement of the outer facade and the roof of the building, and the solar power generation and building integration design is realized. In the solar photovoltaic shed, the flaky backboard can be used as a solar cell module protection material at the top of the shed, so that the shed can be realized and the power generation function is realized. In the solar photovoltaic caravan clean energy, the lamellar backboard can be used as a solar cell module protection material for a roof and a side surface, so that the functions of self-power generation and self-heating of the caravan are realized.
With the rapid development of renewable energy sources and the increase of the demand for clean energy sources, the solar photovoltaic industry has a wide market demand. The lamellar solar photovoltaic backboard is used as one of key materials of the solar photovoltaic module, has excellent performance and application prospect, is beneficial to promoting the development of the solar photovoltaic industry, and meets the requirements of the market on the efficient, stable and reliable solar cell module.
The flexible solar backboard is a novel solar cell backboard material, has the advantages of portability, softness, easiness in processing and the like, and can effectively reduce the cost of the whole solar cell board. With the continuous development and progress of technology, the application prospect of the flexible solar back plate will be wider and wider.
Drawings
Fig. 1 is a schematic structural diagram of a photovoltaic backsheet of the present invention:
in the figure, 1-a fluorine-containing material; 2-upper insulating layer; 3-a continuous fiber reinforced thermoplastic composite; 4-lower insulating layer
Detailed Description
The technical scheme of the invention is further described by the specific embodiments with reference to the accompanying drawings in the specification:
example 1
FIG. 1 is a schematic structural view of a photovoltaic backsheet of the present invention; a flexible solar photovoltaic backboard is composed of a protective layer, an upper insulating layer 2, a supporting layer and a lower insulating layer 4. The protective layer is a layer of fluorine-containing paint; the upper insulating layer 2 and the lower insulating layer 4 are both PET/PP double-layer adhesive films, and the supporting layer is a PET-based continuous fiber reinforced thermoplastic composite material 3. The fluorine-containing paint of the protective layer is coated on the PET film surface of the insulating layer, the PP film surface of the upper insulating layer 2 is adhered to one side of the supporting layer, and the PP surface of the lower insulating layer 4 is adhered to the other side of the supporting layer. The protective layer can protect the solar cell panel from the influence of external environment, and the insulating layer can prevent current from leaking from the backboard; and the support layer ensures the strength of the backboard and supports and protects the solar cell.
The protective layer is a layer of fluorine-containing material 1 material, fluorocarbon paint coating and 10g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The protective layer solves the problem of hydrolysis of the PET adhesive film,the integrity of the PET adhesive film can be ensured.
The insulating layer is a PET/PP double-layer adhesive film, and the PET/PP double-layer adhesive film consists of a PET layer and a PP layer. The PET layer contains 10% of titanium dioxide and 1.5% of nucleating agent, and has the characteristics of hydrolysis resistance, oxidation resistance, uniformity and the like; the PP is modified by maleic anhydride, and the PP layer has the characteristics of high adhesion, 121 ℃ softening resistance, oxidation resistance and the like. The PET/PP double-layer adhesive film is prepared into an adhesive film by means of film blowing and the like. The film blowing is carried out in two sections, so that the stretching ratio of the longitudinal direction and the transverse direction of the adhesive film is ensured
The supporting layer is made of a continuous fiber reinforced thermoplastic composite material and is formed by compounding more than three layers of continuous fiber reinforced thermoplastic resin sheets. The continuous fiber reinforced thermoplastic resin sheet is formed by impregnating resin and continuous fibers, and has a gram weight of 200g/m 2 The flame retardance reaches the B1 level.
The resin in the continuous fiber reinforced thermoplastic resin sheet is PET, and the fiber is glass fiber PET resin, and the ratio of APET to CPET is 6:4.PET: fiberglass = 45:55. The gram weight of the single-layer continuous fiber reinforced thermoplastic resin sheet is 200g/m 2 . The continuous fiber-reinforced thermoplastic resin sheet is compounded as follows: the three-layer sheet material is compounded by hot pressing at 200-220 deg.c and 80-120N to form the composite structure with 0 deg/90 deg/0 deg.c, so as to realize the effect of combining the prepreg layers into one integral.
The PET/PP double-layer adhesive film is subjected to corona treatment before bonding and compounding. And finishing the compounding of the backboard within 24 hours after corona.
A flexible solar photovoltaic backboard and a preparation method thereof are provided, wherein a PET/PP double-layer adhesive film coated with fluorocarbon paint, a continuous fiber reinforced thermoplastic composite material and a PET/PP double-layer adhesive film are compounded together through hot pressing, wherein the PP surface of the PET/PP double-layer adhesive film is contacted with the surface of the continuous fiber reinforced thermoplastic composite material and compounded together through hot pressing. The compounding temperature is 170-200 ℃ and the pressure is 50-80N.
Example 2
A flexible solar photovoltaic backboard is composed of a protective layer, an upper insulating layer 2, a supporting layer and a lower insulating layer 4. The protective layer is a layer of fluorine-containing paint; the upper insulating layer 2 and the lower insulating layer 4 are both PET/PP double-layer adhesive films, and the supporting layer is a PP-based continuous fiber reinforced thermoplastic composite material 3. The fluorine-containing adhesive film of the protective layer is covered on the PET film surface of the upper insulating layer 2, the PP film surface of the upper insulating layer 2 is adhered to the supporting layer surface, and the other side of the supporting layer is adhered to the PP surface of the lower insulating layer 4.
The protective layer is a layer of 50g/m 2 PVDF of (b); the protective layer solves the problem of hydrolysis of the PET adhesive film, and can ensure the integrity of the PET adhesive film.
The upper insulating layer 2 and the lower insulating layer 4 are PET/PP double-layer adhesive films, and the PET/PP double-layer adhesive films consist of PET layers and PP layers. The PET layer contains 10% of titanium dioxide and 1.5% of nucleating agent, and has the characteristics of hydrolysis resistance, oxidation resistance, uniformity and the like; the PP is modified by maleic anhydride, and the PP layer has the characteristics of high adhesion, 121 ℃ softening resistance, oxidation resistance and the like. The PET/PP double-layer adhesive film is prepared into an adhesive film in a biaxial stretching mode.
The supporting layer is a continuous fiber reinforced thermoplastic composite material 3 and is formed by compounding more than three layers of continuous fiber reinforced thermoplastic resin sheets. The continuous fiber reinforced thermoplastic resin sheet is formed by impregnating resin and continuous fibers, and has a gram weight of 200g/m 2 And 300g/m 2 The flame retardance reaches the B1 level.
The resin in the continuous fiber reinforced thermoplastic resin sheet is PP, and the fiber is glass fiber. PP glass fiber=35:65. The gram weight of the single-layer continuous fiber reinforced thermoplastic resin sheet is 200g/m 2 And 300g/m 2 . The continuous fiber-reinforced thermoplastic resin sheet is compounded as follows: the three layers of sheet materials are compounded together in a 0 degree/90 degree/0 degree combination mode through hot pressing, and the gram weight distribution of the sheet materials is 200g/m 2 、300g/m 2 、200g/m 2 . The compounding temperature is 200-220 ℃ and the pressure is 80-120N so as to achieve the full melting between layers.
A flexible solar photovoltaic backboard and a preparation method thereof are provided, wherein PET/PP double-layer adhesive film, continuous fiber reinforced thermoplastic composite material and PET/PP double-layer adhesive film of composite PVDF film are compounded together through hot pressing, wherein the PP surface of PET/PP double-layer adhesive film is contacted with the surface of continuous fiber reinforced thermoplastic composite material and compounded together through hot pressing. The compounding temperature is 170-200 ℃ and the pressure is 50-80N.
While only the preferred embodiments of the present invention have been described above, it should be noted that it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the essential technical features of the present invention, and the modifications and adaptations should and are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The utility model provides a flexible solar photovoltaic backplate, its characterized in that includes from the top down's protective layer, goes up insulating layer, supporting layer and lower insulating layer, the protective layer be one deck fluorine-containing material, last insulating layer, lower insulating layer be PET and PP bilayer glued membrane, the supporting layer be continuous fiber reinforced thermoplastic composite, fluorine-containing material cover on the PET membrane surface of last insulating layer, the PP membrane face of lower insulating layer adhere with the supporting layer, the PET face of lower insulating layer be located the lower floor.
2. The flexible solar photovoltaic backsheet according to claim 1, wherein the fluorine-containing material is 50g/m 2 PVF or PVDF film of (C) or 10g/m 2 Fluorocarbon paint coating of (2).
3. The flexible solar photovoltaic backboard according to claim 2, wherein the PET and PP double-layer adhesive films of the upper insulating layer and the lower insulating layer are prepared by film blowing and biaxial stretching, and stretching forces in the longitudinal and transverse directions are ensured in the preparation process so as to improve the strength of the co-extrusion adhesive film.
4. The flexible solar photovoltaic backsheet according to claim 1, 2 or 3, wherein the continuous fiber reinforced thermoplastic composite material of the support layer is formed by compounding three or more continuous fiber reinforced thermoplastic resin sheets, the continuous fiber reinforced thermoplastic resin sheets are formed by impregnating resin and continuous fibers, and the gram weight is 200g/m 2 The flame retardance reaches the B1 level.
5. The flexible solar photovoltaic backsheet according to claim 4, wherein the proportion of continuous fibers in the continuous fiber reinforced thermoplastic resin sheet is 55-70%, the resin in the continuous fiber reinforced thermoplastic resin sheet is PP, PET, PA material containing flame retardant, and the continuous fibers are glass fiber, basalt fiber, carbon fiber and the like.
6. The flexible solar photovoltaic backsheet according to claim 5, wherein the continuous fibers are present in a ratio of 65-70% and the continuous fibers are continuous glass fibers impregnated with PET.
7. The preparation method of the flexible solar photovoltaic backboard is characterized by comprising the following steps of: the method comprises the steps of firstly covering a fluorine-containing material on the surface of a PET film of an upper insulating layer PET and a PP double-layer adhesive film, and then compounding the PET film of the upper insulating layer PET and the PET film of the lower insulating layer PET and the PP double-layer adhesive film of the support layer together through hot pressing, wherein the PP surfaces of the PET film of the upper insulating layer PET and the PP double-layer adhesive film are contacted with the surface of the PET film of the continuous fiber reinforced thermoplastic composite material, and are compounded together through hot pressing, the compounding temperature is 170-200 ℃, the pressure is 50-80N, and the PP adhesive films in the upper insulating layer PET film and the lower insulating layer PET film and the PP double-layer adhesive film are fully fused and combined with the continuous fiber reinforced thermoplastic composite material.
8. The method for manufacturing a flexible solar photovoltaic back sheet according to claim 7, wherein the PP surfaces of the upper insulating layer and the lower insulating layer are subjected to corona treatment.
9. The method for preparing a flexible solar photovoltaic back sheet according to claim 8, wherein the continuous fiber reinforced thermoplastic composite material is formed by compounding more than three layers of continuous fiber reinforced thermoplastic resin sheets, and the compounding mode is as follows:
the continuous fibers in each layer of the continuous fiber reinforced thermoplastic resin sheet are unidirectionally oriented, the continuous fiber reinforced thermoplastic resin sheets are vertically stacked by 90 degrees or stacked by 0 degrees in the same direction at 90 degrees, namely, the continuous fiber reinforced thermoplastic resin sheets are staggered and stacked at 90 degrees, the compounding temperature is 200-220 ℃, and the pressure is 80-120N so as to achieve full melting between layers, and the multi-layer continuous fiber reinforced thermoplastic resin sheets are combined into a single whole.
10. The method of manufacturing a flexible solar photovoltaic backsheet according to claim 9, wherein when the continuous fiber reinforced thermoplastic composite is:
when three layers are compounded: compounding together by hot pressing in a combination mode of 0 degree/90 degree/0 degree, wherein the compounding temperature is 200-220 ℃ and the pressure is 80-120N;
four layers are compounded: compounding together by hot pressing in a combination mode of 0 degree/90 degree/0 degree/90 degree or 0 degree/90 degree/0 degree, wherein the compounding temperature is 200-220 ℃ and the pressure is 100-120N;
five layers are compounded together through hot pressing in a combination mode of 0 degree/90 degree/0 degree or 0 degree/90 degree/0 degree, and the compounding temperature is 200-220 ℃ and the pressure is 100-120N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311869319.3A CN117799271A (en) | 2023-12-31 | 2023-12-31 | Flexible solar photovoltaic backboard and preparation method thereof |
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| CN202311869319.3A CN117799271A (en) | 2023-12-31 | 2023-12-31 | Flexible solar photovoltaic backboard and preparation method thereof |
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| CN117799271A true CN117799271A (en) | 2024-04-02 |
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| CN202311869319.3A Pending CN117799271A (en) | 2023-12-31 | 2023-12-31 | Flexible solar photovoltaic backboard and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117799271A (en) |
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2023
- 2023-12-31 CN CN202311869319.3A patent/CN117799271A/en active Pending
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