CN216153271U

CN216153271U - Fluorocarbon film and coated glass

Info

Publication number: CN216153271U
Application number: CN202121320148.5U
Authority: CN
Inventors: 贺竟萱
Original assignee: Chongqing Jingxuan Tenang New Material Technology Co ltd
Current assignee: Chongqing Jingxuan Tenang New Material Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-04-01
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a fluorocarbon film and fluorocarbon glass, wherein the fluorocarbon film comprises: the modified PET and the ultraviolet absorbent accounting for 3% -3.5% of the total mass of the first PETG film are mixed to obtain a first PETG film, a first glue layer, a reflection ink layer which is obtained by mixing and stacking printing ink with the light transmittance of more than 95% and UV curing agent accounting for 2% -7% of the total mass of the reflection ink layer and the light transmittance of more than 95% by adopting a gravure printing roller for flexography, and a fluorocarbon PVDF film which is processed by a flame treatment method on the back surface of the film; the reflection printing ink layer covers on the back of fluorine carbon PVDF membrane, and first PETG membrane passes through the adhesion of first glue film and adheres to on the back of reflection printing ink layer. The coated glass includes: the back surface of the fluorocarbon film is adhered to the front surface of the glass through the second adhesive layer. The fluorocarbon film and the fluorocarbon glass have the functions of self-cleaning, high chemical resistance, surface impact resistance, high light transmittance, ultraviolet radiation resistance and heat accumulation reduction.

Description

Fluorocarbon film and coated glass

Technical Field

The present invention relates to polymer films, and particularly to a fluorocarbon film and coated glass.

Background

The glass occupies an important position in the fields of modern building industry, automobile manufacturing industry and the like, and not only can enhance the visual effect, but also can realize multiple functions of lighting, wind prevention, rain prevention and the like. The glass applied to different fields needs to be selected according to factors such as use requirements and the like, for example, the photovoltaic glass applied to the photovoltaic industry usually adopts toughened glass with high strength and good thermal stability. However, no matter which type of glass is adopted, after long-time use, the surface of the glass is easily covered with a layer of dust, and the dust not only affects the light transmittance of the glass, but also corrodes the surface of the glass and reduces the service life of the glass. Therefore, there is a need to develop a product which can prevent dust from accumulating on the surface of glass and can make the glass meet the use requirement.

SUMMERY OF THE UTILITY MODEL

The technical problems to be solved by the utility model are as follows: provided are a fluorocarbon film and coated glass which are self-cleaning, highly chemical resistant, surface impact resistant, highly light transmissive, resistant to ultraviolet radiation, and capable of reducing heat build-up.

In order to solve the problems, the utility model adopts the technical scheme that: the fluorocarbon film includes: the anti-yellowing and whitening ink comprises a first PETG film, a first adhesive layer, an anti-yellowing and whitening ink layer and a fluorocarbon PVDF film, wherein the first PETG film is obtained by mixing modified PET and an ultraviolet absorber accounting for 3-3.5% of the total mass of the first PETG film, the anti-yellowing and whitening ink layer is obtained by mixing ink with light transmittance of more than 95% and a UV curing agent accounting for 2-7% of the total mass of the anti-yellowing and whitening ink layer and with light transmittance of more than 95% and then performing flexography stacking by adopting a gravure printing roller, and the fluorocarbon PVDF film is treated by a flame treatment method on the back of the film; the anti-yellowing white ink layer is printed and stacked on the back surface of the fluorocarbon PVDF film, and the first PETG film is adhered to the back surface of the anti-yellowing white ink layer through the first adhesive layer.

Further, the thickness of the first PETG film is 25-120 micrometers.

Further, in the fluorocarbon film, the thickness of the first adhesive layer is 20 to 25 μm.

Further, the thickness of the anti-yellowing white ink layer is 20-50 micrometers.

Further, in the fluorocarbon film, the thickness of the fluorocarbon PVDF film is 25 to 150 micrometers.

The coated glass comprises: the back surface of the fluorocarbon film is adhered to the front surface of the glass through the second adhesive layer.

The other coated glass is double-film coated glass and comprises: the back surface of the fluorine-carbon film is adhered to the front surface of the glass through the second adhesive layer, and the second PETG film is adhered to the back surface of the glass through the third adhesive layer.

Further, in the coated glass, the glass in the coated glass may adopt ultra-white glass with a thickness of less than 2 mm as a carrier.

The utility model has the beneficial effects that: firstly, the fluorocarbon PVDF film is a film with extremely low polarity on the surface in fluorocarbon series film materials, and the energy structure of a chemical bond determines that the polarity of the surface is approximately 0, namely, the fluorocarbon PVDF film does not have chemical reaction and affinity to any chemical substance, so that any substance cannot cover the fluorocarbon PVDF film, and the fluorocarbon film has a self-cleaning function, high chemical resistance and high light transmittance; secondly, the energy of the-C-F-bond is 5-7 times of the average wavelength energy of ultraviolet rays, so that the ultraviolet rays cannot penetrate through the fluorocarbon PVDF film, the phenomena of aging, chemical function loss and the like of the first adhesive layer, the second adhesive layer and the third adhesive layer due to ultraviolet radiation are prevented, and the service lives of the fluorocarbon film and the coated glass are prolonged; forming a plurality of directional reflection angles on the anti-yellowing white ink layer obtained by flexography stacking of a gravure printing roller, and reflecting more than 45% of infrared rays in sunlight irradiated on the front surface of the fluorine-carbon film to reduce the heat accumulation on the fluorine-carbon film; the glass in the coated glass can adopt ultra-white glass with the thickness less than 2 mm as a carrier, and the coated glass adopting the combination of the ultra-white glass and the fluorocarbon film has low cost and better surface impact resistance compared with toughened glass; in addition, the coated glass combined by the ultra-white glass and the fluorocarbon film is broken in a linear crack manner and cannot scatter when being broken due to natural disasters or other factors, so that the safety performance is improved, the cleaning cost in the later period is reduced, and the coated glass can not lose the light transmission function; and fifthly, adopting the double-film coated glass of the fluorocarbon film and the second PETG film, wherein the fluorocarbon film and the second PETG film form uniform 'film-to-glass adhesive force' on the surface of the glass, so that the stress on the surface of the glass is uniformly distributed again due to external force, and compared with the toughened glass with the same specification, the impact resistance of the double-film coated glass is improved by 3-3.5 times.

Drawings

FIG. 1 is a schematic view of a partial structure of a fluorocarbon film according to the present invention.

FIG. 2 is a schematic view of a partial structure of a coated glass according to the present invention.

FIG. 3 is a partial structural view of a coated glass using a fluorocarbon film and a second PETG film according to the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

Example one

As shown in fig. 1, a fluorocarbon film described in the present embodiment includes: the anti-yellowing white ink film comprises a first PETG film 1, a first adhesive layer 2, an anti-yellowing white ink layer 3 obtained by adopting gravure printing roller flexography and accumulation, and a fluorocarbon PVDF film 4 of which the back surface is treated by a flame treatment method. After the anti-yellowing white ink layer 3 is printed and accumulated on the back surface of the fluorocarbon PVDF film 4, the first PETG film 1 is adhered to the back surface of the anti-yellowing white ink layer 3 through the first glue layer 2 to form a complete fluorocarbon film 5. The first PETG film 1 is obtained by mixing modified PET and an ultraviolet absorbent accounting for 3-3.5 percent of the total mass of the first PETG film. The anti-yellowing white ink layer 3 is obtained by mixing ink with light transmittance of more than 95% and UV curing agent which accounts for 2% -7% of the total mass of the anti-yellowing white ink layer 3 and has light transmittance of more than 95%.

In the embodiment, the thickness of the first PETG film 1 is controlled to be 25-120 micrometers, the thickness of the first glue layer 2 is controlled to be 20-25 micrometers, the thickness of the anti-yellowing white ink layer 3 is controlled to be 20-50 micrometers, and the thickness of the fluorocarbon PVDF film 4 is controlled to be 25-150 micrometers.

The fluorine carbon film with the structure has the following advantages: firstly, the fluorocarbon PVDF film is a film with extremely low polarity on the surface in fluorocarbon series film materials, and the energy structure of a chemical bond determines that the polarity of the surface is approximately 0, namely, the fluorocarbon PVDF film does not have chemical reaction and affinity to any chemical substance, so that any substance cannot cover the fluorocarbon PVDF film, and the fluorocarbon film has a self-cleaning function, high chemical resistance and high light transmittance; secondly, the energy of the-C-F-bond is 5-7 times of the average wavelength energy of ultraviolet rays, so that the ultraviolet rays cannot penetrate through the fluorocarbon PVDF film, the phenomena of aging, chemical function loss and the like of the first adhesive layer, the second adhesive layer and the third adhesive layer due to ultraviolet radiation are prevented, and the service lives of the fluorocarbon film and the coated glass are prolonged; and thirdly, forming a plurality of directional reflection angles on the anti-yellowing white ink layer obtained by adopting gravure printing roller flexography accumulation, and reflecting more than 45% of infrared rays in sunlight irradiated on the front surface of the fluorine-carbon film to reduce the accumulation of heat on the fluorine-carbon film.

Example two

As shown in fig. 2, the coated glass of the present embodiment is characterized in that: the method comprises the following steps: glass 7, a second glue layer 6 and the fluorocarbon film 5 described in the first embodiment, wherein the back surface of the fluorocarbon film 5 is adhered to the front surface of the glass 7 through the second glue layer 6.

The coated glass has the advantages of the fluorocarbon film, the glass 7 in the coated glass can adopt the ultra-white glass with the thickness less than 2 mm as a carrier, and the coated glass adopting the combination of the ultra-white glass and the fluorocarbon film has low cost and better surface impact resistance compared with toughened glass; in addition, the coated glass combined by the ultra-white glass and the fluorocarbon film is broken in a linear crack manner and cannot scatter when being broken due to natural disasters or other factors, so that the safety performance is improved, the cleaning cost in the later period is reduced, and the coated glass can be ensured not to lose the light transmission function.

EXAMPLE III

As shown in fig. 3, the coated glass of the present embodiment is characterized in that: the method comprises the following steps: glass 7, a second glue layer 6, and a fluorocarbon film 5, a third glue layer 8, and a second PETG film 9 described in example one. The back surface of the fluorocarbon film 5 is adhered to the front surface of the glass 7 through the second adhesive layer 6, and the second PETG film 9 is adhered to the back surface of the glass 7 through the third adhesive layer 8. The second PETG film 9 is obtained by mixing modified PET and an ultraviolet absorbent accounting for 3-3.5 percent of the total mass of the second PETG film 9.

The coated glass has the advantages of the fluorocarbon film, and also has the following advantages: the glass 7 in the coated glass can adopt ultra-white glass with the thickness less than 2 mm as a carrier, and the coated glass adopting the combination of the ultra-white glass and the fluorocarbon film has surface impact resistance compared with toughened glass; in addition, the coated glass combined by the ultra-white glass and the fluorocarbon film is broken in a linear crack manner and cannot scatter when being broken due to natural disasters or other factors, so that the safety performance is improved, the cleaning cost in the later period is reduced, and the coated glass can not lose the light transmission function; before the glass 7 is not toughened, the internal stress distribution of the glass 7 is as follows: the stress of the upper glass surface (Fupper) and the stress of the lower glass surface (Flower) are far less than the stress of the center of the glass (Fcenter), the Fcenter = Fupper + Flower, and Fupper ≠ Flower; the force imbalance of the glass causes the glass to have physical properties of high brittleness, frangibility and the like; by adopting the coated glass of the fluorocarbon film 5 and the second PETG film 9, the fluorocarbon film 5 and the second PETG film 9 form uniform 'film-to-glass adhesive force' on the surface of the glass, so that the stress on the surface of the glass is uniformly distributed again due to external force, and compared with toughened glass with the same specification, the impact resistance of the double-coated glass is improved by 3-3.5 times.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.

The fluorocarbon PVDF film can be directly obtained from the market (such as China company of SK company in Korea) according to the standard, the UV curing agent can be directly obtained from the market (such as Tolliy company in Japan), and the first adhesive layer, the second adhesive layer and the third adhesive layer are formed by stacking the adhesives obtained from the market (such as the adhesive with model YH758B produced by New Material Ltd. of Beijing high Union).

The first PETG film and the second PETG film are both modified materials of modified PET, and G is the first letter of Chinese modified pinyin; in the process of mixing and casting PET, 3-3.5% by mass of ultraviolet absorbent is added, and the ultraviolet absorbent can be directly purchased from the market (such as ultraviolet absorbent UV-P produced by Nanjing Milan chemical industry).

The fluorocarbon film with the structure can be applied to the building field such as photovoltaic equipment, the automobile manufacturing industry such as automobile windshield film and other various glass application fields. For the glass applied to different fields, the coated glass in the second embodiment or the third embodiment can be selected selectively, for example: in the photovoltaic field, solar cell panel or photovoltaic board among the photovoltaic equipment are the essential element with solar energy conversion for the electric energy, and its surface is with one deck photovoltaic glass, and current photovoltaic glass is toughened glass, and its surface is not carried out the tectorial membrane and is handled, and solar cell panel generally installs in the open air, uses the back for a long time, and the toughened glass surface covers the one deck dust easily, and the dust not only can corrode the toughened glass surface, still can influence toughened glass's luminousness. A large amount of photovoltaic equipment is thrown in a field area with rare human smoke, and dust on the surface of toughened glass is generally removed through an electric brush, so that the overall cost of the photovoltaic equipment is increased, and the risk of equipment failure also exists. The coated glass described in the second embodiment or the third embodiment can be used instead of the tempered glass. The laminated glass which has the advantages of self cleaning, high chemical resistance, surface impact resistance, high light transmittance and ultraviolet radiation resistance and can reduce heat accumulation can greatly protect wafers in a solar cell panel or a photovoltaic panel and prolong the service life of the wafers.

Claims

1. A fluorocarbon film characterized by: the method comprises the following steps: the film comprises a first PETG film, a first adhesive layer, an anti-yellowing white ink layer obtained by flexography and accumulation of a gravure printing roller and a fluorocarbon PVDF film, wherein the back surface of the film is treated by a flame treatment method; the anti-yellowing white ink layer is printed and stacked on the back surface of the fluorocarbon PVDF film, and the first PETG film is adhered to the back surface of the anti-yellowing white ink layer through the first adhesive layer.

2. A fluorocarbon film according to claim 1, characterized in that: the thickness of the first PETG film is 25-120 micrometers.

3. A fluorocarbon film according to claim 1, characterized in that: the thickness of the first adhesive layer is 20-25 micrometers.

4. A fluorocarbon film according to claim 1, 2 or 3, characterized in that: the thickness of the anti-yellowing white ink layer is 20-50 microns.

5. A fluorocarbon film according to claim 1, 2 or 3, characterized in that: the thickness of the fluorocarbon PVDF film is 25-150 microns.

6. A fluorocarbon film according to claim 4, characterized in that: the thickness of the fluorocarbon PVDF film is 25-150 microns.

7. A coated glass, characterized in that: the method comprises the following steps: glass, a second adhesive layer, and the fluorocarbon film of any one of claims 1 to 6, the rear surface of the fluorocarbon film being adhered to the front surface of the glass by the second adhesive layer.

8. The coated glass according to claim 7, wherein: the glass is ultra-white glass.

9. The coated glass according to claim 7 or 8, wherein: further comprising: the third glue layer and the second PETG film, the second PETG film is adhered to the back of the glass through the third glue layer.