CN218535937U - Film-coated color steel tile composite film and roof tile - Google Patents
Film-coated color steel tile composite film and roof tile Download PDFInfo
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- CN218535937U CN218535937U CN202320002111.0U CN202320002111U CN218535937U CN 218535937 U CN218535937 U CN 218535937U CN 202320002111 U CN202320002111 U CN 202320002111U CN 218535937 U CN218535937 U CN 218535937U
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Abstract
The utility model provides a various steel tile complex film of tectorial membrane and roofing tile. The film-coated color steel tile composite film comprises a protective layer, a color film layer and a color steel tile layer which are sequentially stacked, wherein the protective layer is formed by a double-layer fluorine-containing co-extrusion film. The utility model also provides a roofing tile, it includes above-mentioned various steel tile complex film of tectorial membrane. The utility model provides a various steel tile complex film of tectorial membrane has light, corrosion-resistant, characteristics that intensity is high, is difficult for ageing, has longer life.
Description
Technical Field
The utility model relates to a various steel tile technical field especially relates to a various steel tile complex film of tectorial membrane and roofing tile.
Background
The roof tiles currently used for the factory building mainly comprise color steel tiles and resin tiles. The color steel tile uses the steel plate as a substrate, and is coated with protective coating on the front and back surfaces, and is bent through hot pressing, but the color steel tile has generally poor weather resistance, can rust after being used for a period of time to cause the factory building to leak water, and especially when a large amount of corrosive substances exist in the factory building production environment, the protective coating of the color steel tile hardly plays a role in protection, so that the service life of the color steel tile is greatly shortened, and therefore the color steel tile has to be replaced again, and a large amount of resources are wasted.
The double-layer co-extrusion film obtained at present is low in mechanical property, and the problems of film cracking, delamination and the like occur after long-term outdoor sunlight irradiation, so that the application of the co-extrusion film is greatly reduced. And no report on obtaining a corrosion-resistant composite film is available at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, an object of the utility model is to provide a various steel tile complex film of tectorial membrane and roofing tile. The film-coated color steel tile composite film has the characteristics of light weight, corrosion resistance and high strength, is not easy to age, and has longer service life.
In order to achieve the above object, the utility model provides a various steel tile complex film of tectorial membrane, this various steel tile complex film of tectorial membrane is including protective layer, colored glue film layer and the various steel tile layer that stromatolite set up in proper order, the protective layer comprises double-deck fluorine-containing coextrusion membrane, the protective layer can reach more than 90% to the reflectivity of 280-400nm light.
According to a specific embodiment of the present invention, the thickness of the protective layer is generally controlled to be 20 μm to 25 μm.
According to a specific embodiment of the present invention, the protective layer may have a transverse elongation at break of 120% to 160%.
According to a specific embodiment of the present invention, the transmittance of the protective layer to visible light of 400 to 1100nm is generally 93% or more.
According to the specific embodiment of the present invention, the haze of the protective layer may reach below 15%.
According to the utility model discloses a specific embodiment, double-deck fluorine-containing is crowded membrane altogether as the protective layer on various steel tile surface, can effectively reflect the ultraviolet ray, reduces the ultraviolet radiation that various steel tile received to effectively prolong the life of various steel tile. In some specific embodiments, the double-layer fluorine-containing co-extruded film has a light reflectivity of more than 90% at a wavelength of 280-400 nm.
According to the utility model discloses a concrete embodiment, the utility model discloses a double-deck fluorine-containing co-extrusion membrane have acid and alkali corrosion resistance's performance, with double-deck fluorine-containing co-extrusion membrane as the surface protection layer of the various steel tile complex film of tectorial membrane, can avoid the various steel tile complex film of tectorial membrane to receive acid and alkali corrosion to improve the life of the various steel tile complex film of tectorial membrane.
According to the utility model discloses a concrete embodiment, the utility model discloses a double-deck fluorine-containing co-extrusion film has good mechanical properties to can avoid appearing the condition that the rete ftractures behind harsh aging test. In some embodiments, the bi-layer fluorine-containing coextruded film may have an elongation at break in the transverse direction that is 1.5 times the elongation at break in the transverse direction of a conventional coextruded film. Specifically, the elongation at break of the double-layer fluorine-containing co-extruded film can reach 120-160%.
According to the utility model discloses a concrete embodiment, the utility model discloses a double-deck fluorine-containing co-extrusion membrane have higher transparency, and this double-deck fluorine-containing co-extrusion membrane can give the colored outward appearance of tectorial membrane color steel tile complex film with colored glued membrane layer complex. In some embodiments, the haze of the bi-layer fluorine-containing coextruded film is generally controlled to within 15%. The transmittance of the double-layer fluorine-containing co-extruded film to visible light with the wavelength of 400-1100nm is generally greater than or equal to 93%.
According to the specific embodiment of the utility model, the double-layer fluorine-containing co-extrusion film has ultra-thin thickness, and the thickness can be controlled to be 20-25 μm.
According to the utility model discloses a specific embodiment, double-deck fluorine-containing co-extrusion membrane can constitute by PVDF layer and ETFE layer that the stromatolite set up. In the protective layer composed of the PVDF layer and the ETFE layer, the PVDF layer may be laminated to the outside, and the ETFE layer may be bonded to the color glue film layer. In some embodiments, the two-layer fluorine-containing coextruded film may be a coextruded film of PVDF and ETFE.
According to the utility model discloses a specific embodiment, double-deck fluorine-containing co-extrusion membrane can constitute by PVDF layer and the PMMA layer that the stromatolite set up. In the protective layer composed of the PVDF layer and the PMMA layer, the PVDF layer may be faced outward, and the PMMA layer may be in contact with the color glue film layer. In some embodiments, the two-layer fluorine-containing coextruded film may be a coextruded film of PVDF and PMMA.
According to the specific embodiment of the present invention, the double-layer fluorine-containing co-extrusion film is generally a double-layer film formed by tape casting and extruding two kinds of transparent fluorine-containing polymer films (for example, one of PMMA film or ETFE film and PVDF film). The C-F bond in the fluorine-containing polymer film has high energy and is beneficial to blocking ultraviolet rays.
According to the utility model discloses a specific embodiment, the process that above-mentioned curtain coating was extruded can be: two feed openings of the double-layer casting extruder are used for respectively feeding two layers of fluorine-containing polymer films serving as raw materials, and then the extrusion amount of a grinding opening of the control equipment is used for controlling the proportion of the two layers of raw materials in the co-extruded film subjected to casting, and the specific proportion can be freely controlled according to actual conditions. The laminated structure of the two transparent fluorine-containing polymer films can be realized by controlling equipment and process conditions.
According to the utility model discloses a concrete embodiment, the utility model discloses a double-deck fluorine-containing co-extrusion membrane that adopts has good mechanical properties, ultraviolet barrier property, anticorrosiveness, high transparency, also can not appear fracture, delaminating, the phenomenon of yellowing after harsh aging test. The double-layer fluorine-containing co-extrusion film is used as a surface protection layer of the film-coated color steel tile composite film, so that the color steel tile can be effectively prevented from being subjected to acid-base corrosion and ultraviolet radiation, the aging problem of the film-coated color steel tile composite film is avoided, and the phenomena of cracking, delaminating, yellowing and the like can not occur even if the film-coated color steel tile composite film is aged, so that the service life of the film-coated color steel tile composite film is prolonged.
According to the utility model discloses a concrete implementation scheme, colored glue film layer can connect protective layer and various steel tile layer, and colored glue film layer and double-deck fluorine-containing can give the colored outward appearance of various steel tile after crowded membrane is compound altogether.
According to the specific embodiment of the present invention, the thickness of the color film layer is generally controlled to be 70 μm to 170 μm, for example, 150 μm to 170 μm, 70 μm to 80 μm.
According to the utility model discloses a concrete implementation scheme can adopt the glued membrane that has certain weatherability to glue the rete as the colour, thereby further improve the weatherability of tectorial membrane color steel tile complex film. In some embodiments, the color glue film layer may be a PE film or the like.
According to the utility model discloses a specific embodiment, the thickness of various steel tile layer is generally controlled to be 0.5mm-1mm.
According to the utility model discloses a concrete embodiment, various steel tile layer can be in 840 type various steel tile, 950 type various steel tile or press from both sides in the core cotton various steel tile one. The utility model discloses do not have special restriction to the width and the thickness of various steel tile, can confirm according to actual conditions.
According to the utility model discloses a concrete embodiment, the utility model discloses a various steel tile complex film of tectorial membrane has light, ultra-thin characteristics. In some specific embodiments, the overall thickness of the film-coated color steel tile composite film is generally controlled to be 0.6mm-1.1mm, and the film-coated color steel tile composite film also has the characteristic of light weight.
According to the utility model discloses a concrete implementation scheme, the various steel tile complex film of tectorial membrane can be through with double-deck fluorine-containing coextruding film and the face-to-face complex of colored glue film layer, then cover the surface of colored glue film layer in the surface of various steel tile layer through hot pressing formation.
The utility model also provides a roofing tile, this roofing tile include above-mentioned various steel tile complex film of tectorial membrane. The utility model provides a various steel tile complex film of tectorial membrane uses as the roofing tile, has higher weatherability and corrosion resistance to longer life has.
The beneficial effects of the utility model reside in that:
the utility model provides a various steel tile complex film of tectorial membrane wholly has light, ultra-thin characteristics, can tolerate acid-base corrosion and ultraviolet radiation, conventional various steel tile relatively, the utility model discloses a various steel tile complex film of tectorial membrane is more difficult ageing, even ageing can not produce phenomenons such as fracture, delaminating, yellowing yet. The film-coated color steel tile composite film can be applied as a roof tile and has higher weather resistance and longer service life.
Drawings
Fig. 1 is a schematic structural diagram of the film-coated color steel tile composite film of example 1.
Description of the symbols
The protective layer 1, colored glued membrane layer 2, color steel tile layer 3.
Detailed Description
In order to clearly understand the technical features, objects and advantages of the present invention, the technical solutions of the present invention will be described in detail below, but the present invention is not limited to the scope of the present invention.
The utility model provides a various steel tile complex film of tectorial membrane, its structure is as shown in figure 1, and this various steel tile complex film of tectorial membrane is including the protective layer 1 that stromatolite set up in proper order, colored glue rete 2, various steel tile layer 3. Wherein, the thickness of the protective layer 1 is 20-25 μm, the thickness of the color film layer 2 is 150-170 μm, and the thickness of the color steel tile layer 3 is 0.5-1 mm.
The protective layer 1 is composed of a double-layer fluorine-containing co-extrusion film, and can protect the surface of the film-coated color steel tile composite film from acid-base corrosion and ultraviolet radiation, so that the aging speed of the film-coated color steel tile composite film is delayed. And the double-layer fluorine-containing co-extrusion film has good fracture resistance, and can avoid cracking, delamination and yellowing after aging. The reflectivity of the protective layer 1 to 280-400nm light is more than 90%, the transverse elongation at break of the protective layer 1 is 120-160%, the haze of the protective layer 1 is less than or equal to 15%, and the transmittance of the protective layer 1 to 400-1100nm visible light can reach more than 93%.
The double-layer fluorine-containing co-extruded film consists of an outer layer and an inner layer which are arranged in a laminated manner, wherein the outer layer can be a PVDF layer, and the inner layer can be one of an ETFE layer or a PMMA layer. The outer layer faces to the outside, and the inner layer is connected with the color glue film layer 2.
The utility model discloses a double-deck fluorine-containing co-extrusion membrane constitute for the transparent fluorine-containing polymer film of two kinds of stromatolite settings usually. The double-layer fluorine-containing co-extrusion film can be formed by two kinds of transparent fluorine-containing polymer films in a casting co-extrusion mode. Specifically, the double-layer fluorine-containing co-extruded film may be a co-extruded film of PVDF and ETFE, or a co-extruded film of PVDF and PMMA.
The colored film layer 2 is used for connecting the protective layer 1 and the color steel tile layer 3, and the colored film layer can be matched with the protective layer 1 with higher transparency to endow the film-coated color steel tile composite film with colored appearance. Preferably, a PE film can be adopted as the color film layer 2, and the PE film has certain weather resistance, so that the weather resistance of the film-covered color steel tile composite film can be further improved.
Example 1
The embodiment provides a film-coated color steel tile composite film, the structure of which is shown in fig. 1. The film-coated color steel tile composite film comprises a protective layer 1, a color glue film layer 2 and a color steel tile layer 3 which are sequentially stacked. Wherein, the thickness of the protective layer 1 is 20 μm, the thickness of the color film layer 2 is 70 μm, and the thickness of the color steel tile layer 3 is 0.5mm.
The protective layer 1 is a double-layer fluorine-containing co-extrusion film and is composed of a PVDF layer and a PMMA layer which are arranged in a laminated mode, wherein the PMMA film is connected with the colored glue film layer 2.
The double-layer fluorine-containing co-extruded film is formed by curtain coating and co-extrusion of PVDF and PMMA. The preparation method comprises the following steps: PVDF and PMMA are fed by a double-layer casting extruder through two feed openings, and the proportion of two film layers in the co-extruded film is controlled by controlling the extrusion amount of a grinding opening.
The protective layer 1 (double-layer fluorine-containing co-extrusion film) has the reflectivity of 90% to 280-400nm light, the transverse elongation at break of 120-160%, the transparency of 85% and the transmittance of more than 93% to 400-1100nm visible light.
The color adhesive film layer 2 is made of a Polyethylene (PE) film.
The preparation process of the film-covered color steel tile composite film of the embodiment comprises the following steps: compounding the protective layer 1 and the color film layer 2 by glue with a certain thickness, then pasting the surface of one side of the color film layer 2 opposite to the protective layer 1 with the color steel tile layer 3, and hot-pressing by a compounding machine at the production speed of 15 m/min, the temperature of 138-150 ℃ and the compounding air pressure of 100-110kg/cm 2 And obtaining the film-coated color steel tile composite film.
Test example 1
This test example provides an aging test for the coated color steel tile composite film of example 1. The aging experimental conditions were UV300, DH2000 and TC400, respectively. DH2000 and TC400 were performed according to the IEC61215 standard.
UV300 (UV 300 KWh): the aging conditions were the ultraviolet aging test requirements specified in section 6.26 of transparent protective film for double-sided battery pack encapsulation, standard T/CPIA 0031-2021. DH2000: aging at 85 deg.C and 85 RH% relative humidity for 2000 hr.
TC400: in an environmental test chamber cycling between (-40 deg.C) 2 deg.C to +85 deg.C 2 deg.C, the rate of temperature change between the highest and lowest temperatures should not exceed 100 deg.C/h, should remain stable for at least 10min at each extreme temperature, and one cycle time should not exceed 6h for a total of 400 cycles.
The sample in example 1 is aged by UV300, yellowed after aging by Δ b =0.7, aged by DH2000, yellowed by Δ b =0.5, and aged by TC400, and the film-coated color steel tile composite film is not yellowed after aging, and has no delamination or cracking. The above-mentioned experimental result demonstrates, the utility model provides a various steel tile complex film of tectorial membrane has ageing-resistant, resistant ultraviolet radiation's characteristics, long service life.
Claims (9)
1. The film-coated color steel tile composite film is characterized by comprising a protective layer, a color adhesive film layer and a color steel tile layer which are sequentially stacked, wherein the protective layer is formed by a double-layer fluorine-containing co-extrusion film, and the reflectivity of the protective layer to light of 280-400nm is more than 90%.
2. The film-coated color steel tile composite film according to claim 1, wherein the protective layer has a thickness of 20-25 μm.
3. The film-covered color steel tile composite film according to claim 1 or 2, wherein the double-layer fluorine-containing co-extruded film has a transverse elongation at break of 120-160%.
4. The film-coated color steel tile composite film according to claim 1 or 2, wherein the haze of the double-layer fluorine-containing co-extruded film is less than or equal to 15%, and the transmittance of the double-layer fluorine-containing co-extruded film to visible light of 400-1100nm is greater than or equal to 93%.
5. The film-coated color steel tile composite film according to claim 1 or 2, wherein the double-layer fluorine-containing co-extruded film is composed of a PVDF layer and an ETFE layer which are arranged in a laminated manner, and the ETFE layer is connected with the color glue film layer;
or the double-layer fluorine-containing co-extrusion film is composed of a PVDF layer and a PMMA layer which are arranged in a laminated mode, and the PMMA layer is connected with the color rubber film layer.
6. The film-coated color steel tile composite film according to claim 1, wherein the thickness of the color glue film layer is 70 μm to 170 μm.
7. The laminated color steel tile composite film according to claim 1, wherein the thickness of the color steel tile layer is 0.5mm to 1mm.
8. The film-coated color steel tile composite film according to claim 1, wherein the thickness of the film-coated color steel tile composite film is 0.6mm to 1.1mm.
9. A roof tile comprising the film-coated color steel tile composite film of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320002111.0U CN218535937U (en) | 2023-01-03 | 2023-01-03 | Film-coated color steel tile composite film and roof tile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320002111.0U CN218535937U (en) | 2023-01-03 | 2023-01-03 | Film-coated color steel tile composite film and roof tile |
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| Publication Number | Publication Date |
|---|---|
| CN218535937U true CN218535937U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320002111.0U Active CN218535937U (en) | 2023-01-03 | 2023-01-03 | Film-coated color steel tile composite film and roof tile |
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| CN (1) | CN218535937U (en) |
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- 2023-01-03 CN CN202320002111.0U patent/CN218535937U/en active Active
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