CN214606411U

CN214606411U - Magnetic control heat insulation antifogging base film

Info

Publication number: CN214606411U
Application number: CN202023221907.0U
Authority: CN
Inventors: 吴培服; 王磊; 池卫
Original assignee: Jiangsu Shuangxing Color Plastic New Materials Co Ltd
Current assignee: Jiangsu Shuangxing Color Plastic New Materials Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-05
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a magnetic control heat insulation antifog base film, which is used for sputtering metal or nonmetal materials on the outer surface of the base film through a vacuum magnetic control sputtering process, and the magnetic control heat insulation antifog base film sequentially comprises an antifog coating, a first hardening coating and a base material layer from inside to outside; the metal and/or nonmetal material is sputtered on the outer side of the substrate layer; the total thickness of the magnetic control heat-insulation antifogging base film is 253-267 mu m, the thickness of the first hardening coating is 2-5 mu m, and the thickness of the antifogging coating is 2-5 mu m. The utility model discloses a magnetic control thermal-insulated antifog base film can obtain good antifog effect through the antifog coating that first hardened coating surface set up.

Description

Magnetic control heat insulation antifogging base film

Technical Field

The utility model relates to an automobile glass pad pasting, building glass pad pasting especially relate to a magnetic control heat insulating film, in particular to magnetic control heat insulating antifog base film with antifog function.

Background

The magnetron heat insulation film is also called a magnetron sputtering metal film, is manufactured by adopting a multilayer magnetron sputtering process and is known for excellent performance of durable reflection heat insulation. Because of its high definition, high heat insulation, high stability, low internal reflection, pure color, never fading, long service life and so on, it is widely used in automobile glass film and building glass film.

The glass film manufactured by the vacuum magnetron sputtering process has great leap in the aspects of lasting heat insulation performance, definition, low reflection, more natural metal primary color and the like. The magnetron sputtering process is characterized in that the advanced aerospace alloy materials such as nickel, silver, titanium, gold and the like are uniformly sputtered on a high-tension PET substrate at high speed and high strength by adopting the most advanced multi-cavity high-speed rotating equipment and utilizing the electric field and magnetic field principle, so that the excellent heat insulation function, clear light transmittance and scientific and natural metal coating of the product are ensured. The product has very good metal texture, incomparable definition and extremely low light reflection. Because the particles are finer and the structure is more compact, the heat insulation durability is higher, and the color can be ensured to be never faded.

In the chinese patent application 2016108119465 previously filed by the applicant, a golden low-emissivity energy-saving window film and a preparation method thereof are disclosed, the window film is golden in the sun, and the film layer structure of the golden window film is as follows from inside to outside: a flexible transparent PET substrate layer; a first high refractive index layer; a first metal oxide layer; a first silver alloy layer; a first barrier layer; a second high refractive index layer; a second metal oxide layer; a second silver alloy layer; a second barrier layer; a third high refractive index layer. This energy-conserving window membrane of golden low radiation of prior art forms refractive index matching relation through the reflection of double-deck silver-alloy layer to the infrared light with three-layer high refraction layer to through the cooperation of thickness parameter, its colour is the golden under the sunlight observation, has splendid visual effect. Meanwhile, the golden window film also has excellent light transmission, heat insulation and oxidation resistance, long service life and easy production.

The above-mentioned prior art window films, on which various refractive layers, metal oxide layers, metal sputtered layers, etc. are required to be attached to an optically transparent substrate, which is the basic functional layer of the window film. As a basis for the window film, the above-mentioned prior art substrate is made of flexible transparent PET. The flexible transparent PET substrate can also be a PET substrate of an optical film or a PET optical substrate, and the requirements of the window film on basic strength, flexibility, light transmittance, heat resistance and the like are met.

The existing magnetic control heat insulation film has obvious advantages in heat insulation and color, but is easy to fog due to the temperature difference between the inside and the outside of glass when the temperature is lower in winter. The magnetic control heat insulation film on the current market cannot avoid the problem of fogging in a wet and cold environment, and has great potential safety hazard.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a magnetic control antifog base film that insulates against heat to reduce or avoid the aforementioned problem.

In order to solve the technical problem, the utility model provides a magnetic control heat-insulating antifog base film, which is used for sputtering metal and/or non-metal materials on the outer surface of the base film through a vacuum magnetic control sputtering process, wherein the magnetic control heat-insulating antifog base film sequentially comprises an antifog coating, a first hardening coating and a base material layer from inside to outside; the metal and/or nonmetal material is sputtered on the outer side of the substrate layer; the total thickness of the magnetic control heat-insulation antifogging base film is 253-267 mu m, the thickness of the first hardening coating is 2-5 mu m, and the thickness of the antifogging coating is 2-5 mu m.

Preferably, the substrate layer is including compound first substrate layer as an organic whole, adhesive layer, second substrate layer and the second sclerosis coating from inside to outside in proper order, the coating of first sclerosis coating is in the surface of first substrate layer.

Preferably, the total thickness of the substrate layer is 245-265 micrometers, the thickness of the first substrate layer is 50-100 micrometers, the thickness of the adhesive layer is 30-45 micrometers, the thickness of the second substrate layer is 110-180 micrometers, and the thickness of the second hardening coating layer is 2-5 micrometers.

The utility model discloses a magnetic control thermal-insulated antifog base film can obtain good antifog effect through the antifog coating that first hardened coating surface set up. In addition, the utility model discloses an antifog coating also is favorable to closely combining with silicone oil type release agent owing to have great surface activity and hydrophilicity, can avoid the release agent to break away from, and is also very favourable to the protection of subsequent processing production magnetic control antifog base film that insulates against heat.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

fig. 1 is a schematic structural view of a magnetic control heat insulation antifogging base film according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a substrate layer of the magnetron heat insulation antifogging base film shown in fig. 1.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

The utility model provides a magnetic control antifog base film that insulates against heat, the base film is applicable to as the basis of car glass pad pasting, building glass pad pasting for various metal and/or non-metallic material (not shown in the figure) are sputtered to the vacuum magnetron sputtering technology at its surface, as shown in fig. 1, it shows the structure schematic diagram according to the utility model discloses a specific embodiment's the antifog base film that insulates against heat of magnetic control.

In an embodiment of the present invention, the magnetically controlled heat insulating antifogging base film of the present invention comprises an antifogging coating 30, a first hardening coating 20 and a substrate layer 10 in sequence from inside to outside. In another embodiment of the present invention, the total thickness of the magnetically-controlled heat-insulating antifogging base film is preferably 253 to 267 μm, the thickness of the first hardening coating 20 is 2 to 5 μm, and the thickness of the antifogging coating 30 is 2 to 5 μm.

Wherein the anti-fog coating 30 is disposed toward the inside of the glass to prevent the moist hot air in the room or the vehicle from condensing on the adhesive film and fogging. The metal and/or non-metal material is sputtered on the outer side of the substrate layer to form one or more layers of sputtered structure, providing excellent heat insulating property and color and other functions. Finally, a pressure-sensitive adhesive layer (not shown in the figure) is arranged on the outer side of the one or more layers of sputtering structures and is used for being stuck on the inner side of the vehicle window or the building glass so as to obtain the heat-insulating and anti-fog functions.

In yet another embodiment of the present invention, the anti-fog coating 30 may comprise the following components: acrylic resin, dimethyl silyl silica surfactant, ethanolamine surface etching agent, polyquaternium surface active bactericide, water-insoluble carbonate, melamine curing agent and propylene glycol solvent.

In one embodiment, the anti-fog coating 30 of the present invention comprises 80-100 parts by weight of acrylic resin, 1-2 parts by weight of dimethylsilylated silica, 10-15 parts by weight of ethanolamine, 0.5-0.8 parts by weight of polyquaternium, 5-10 parts by weight of water-insoluble carbonate, 1-2 parts by weight of melamine, and 80-100 parts by weight of propylene glycol.

The anti-fog coating 30 of the present invention can be prepared by the following steps.

First, after uniformly mixing 80 to 100 parts by weight of acrylic resin, 1 to 2 parts by weight of silica dimethylsilylate, 10 to 15 parts by weight of ethanolamine, 0.5 to 0.8 part by weight of polyquaternium, 5 to 10 parts by weight of water-insoluble carbonate, 1 to 2 parts by weight of melamine and 80 to 100 parts by weight of propylene glycol, the mixture is applied to the outer surface of the first hard coat layer 20 by spin coating or spray coating, and cured at 70 to 120 ℃ for 1 to 2 hours, thereby obtaining a precoat layer on the outer surface of the first hard coat layer 20. In a specific embodiment, the thickness of the precoat is 2-5 μm, and the water-insoluble carbonate added is preferably calcium carbonate or magnesium carbonate with a particle size of 0.5-1 μm.

Thereafter, the precoat layer is subjected to a plasma surface activation treatment. After the surface activation treatment, the surface of the precoat layer forms a uniform rough surface with convex and concave parts, and the water-insoluble carbonate part can be exposed. The plasma surface activation treatment is a common treatment method in the field, and for example, the activation treatment can be carried out by oxygen, the oxygen flow is 100sccm, and the vacuum degree is 0.1-0.2mbar for 30s-60 s.

Then, the precoat layer after the activation treatment is subjected to acid washing. Preferably, the precoat layer is soaked by 6-8mol/L hydrochloric acid at 50-60 ℃ for 10-20 minutes. Through acid washing, the exposed carbonate component on the precoating layer can be partially dissolved, a porous structure can be further obtained, the surface activity of the coating is further improved, the surface tension of the coating is favorably reduced, and the affinity and the diffusibility to water vapor are improved.

Finally, washing and drying with water to obtain the antifogging coating 30 of the utility model. Washing with water for 10-20 min, and oven drying at 50-60 deg.C for 30 min.

Through the test, the utility model discloses an antifog coating is in near car of zero degree centigrade in winter or indoor antifog respond well, and steam produces obvious infiltration effect on the coating surface in 60 minutes, can not gather into and drip, possesses good light transmissivity. The long-term test shows that no obvious performance degradation is seen in half a year, and the waterproof and heat-insulating effects are good. In addition, the utility model discloses an antifog coating also is favorable to closely combining with silicone oil type release agent owing to have great surface activity and hydrophilicity, can avoid the release agent to break away from, and is also very favourable to the protection of subsequent processing production magnetic control antifog base film that insulates against heat.

In another embodiment of the present invention, the first hardened coating 20 may comprise the following components: polymethyl methacrylate, tetraethoxysilane and methyltriethoxysilane.

In a specific embodiment, the first hardened coating 20 may be composed of 70-80 parts by weight of polymethyl methacrylate, 10-20 parts by weight of ethyl orthosilicate, and 10-20 parts by weight of methyltriethoxysilane. The components constituting the first hardened coating 20 can be added into 50-200 parts by weight of diethyl ether and 50-100 parts by weight of deionized water according to the proportion of each 100 parts by weight, and then the mixture is coated on the surface of the substrate layer 10 by spin coating or spray coating, and is cured for 2-3 hours at 90-100 ℃, so as to obtain the first hardened coating 20 of the present invention.

Furthermore, 5-10 parts by weight of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane can be added into the components to provide further coupling modification for the silicon-oxygen component in the coating, so that the compactness and antistatic property of the silicon-oxygen component in the sub-first hardened coating 20 can be further improved. At this time, the first hardened coating 20 may be composed of 70-80 parts by weight of polymethyl methacrylate, 10-20 parts by weight of ethyl orthosilicate, 10-20 parts by weight of methyltriethoxysilane, and 5-10 parts by weight of γ - (2, 3-epoxypropoxy) propyltrimethoxysilane. Similarly, the components of the first hardened coating 20 can be added into 50-200 parts by weight of ethyl ether and 50-100 parts by weight of deionized water according to the proportion of each 100 parts by weight, and then the mixture is coated on the surface of the substrate layer 10 by spin coating or spray coating, and is cured for 2-3 hours at 90-100 ℃, so as to obtain the first hardened coating 20 of the present invention.

Further, the substrate layer 10 of the present invention may adopt a composite substrate with a sandwich structure, and the structure thereof is shown in fig. 2.

In the specific embodiment shown in fig. 2, the substrate layer 10 of the present invention sequentially comprises a first substrate layer 11, an adhesive layer 13, a second substrate layer 12 and a second hardened coating 14, which are combined into a whole, from inside to outside, wherein the first hardened coating 20 is coated on the surface of the first substrate layer 11 of the substrate layer 10. In a specific embodiment of the present invention, the total thickness of the substrate layer 10 is preferably 245-265 μm, the thickness of the first substrate layer 11 is 50-100 μm, the thickness of the adhesive layer 13 is 30-45 μm, the thickness of the second substrate layer 12 is 110-180 μm, and the thickness of the second hardening coating 14 is 2-5 μm.

Polyimide film can be chooseed for use to first substrate layer 11, and polyimide material has outstanding high temperature resistant, resistant radiation, chemical corrosion resistance and electrical insulation performance, can effectively ensure the structural performance index under temperature, humidity environment. Specifically, the first substrate layer 11 may be prepared by using a commercially available transparent polyimide film product similar to that produced by kunshan-fu-huili electronics ltd or a transparent polyimide film product produced by Shandong-guanke optical technology ltd.

The adhesive layer 13 can be made of a commercially available polyurethane adhesive material, such as the polyurethane adhesive product of ZD006 from Jiuta, Inc., Enshi, or can be made of a commercially available acrylate adhesive material, such as the acrylate adhesive of 160 from Nanlin chemical engineering, Inc., Shenzhen.

The second substrate layer 12 may be a roll of APET sheet or a roll of BOPET film, preferably a biaxially oriented polyester film BOPET with a thickness of 250 μm. Biaxially oriented polyester film BOPET has a somewhat better heat resistance than amorphous APET.

The second hardened coating 14 can be obtained using the same composition and process as the first hardened coating 20 to reduce manufacturing complexity.

To sum up, the utility model discloses an antifog coating is in near the car of zero degree centigrade in winter or indoor antifog effectual, and steam produces obvious infiltration effect on the coating surface, can not gather into and drip, possesses good light transmissivity. The long-term test shows no obvious performance degradation, and the waterproof and heat-insulating effects are good. In addition, the utility model discloses an antifog coating also is favorable to closely combining with silicone oil type release agent owing to have great surface activity and hydrophilicity, can avoid the release agent to break away from, and is also very favourable to the protection of subsequent processing production magnetic control antifog base film that insulates against heat.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims

1. A magnetron heat-insulation antifogging base film is used for sputtering a metal or nonmetal material on the outer surface of the magnetron heat-insulation antifogging base film through a vacuum magnetron sputtering process and is characterized by comprising an antifogging coating, a first hardening coating and a base material layer from inside to outside in sequence; the metal or nonmetal material is sputtered on the outer side of the base material layer; the total thickness of the magnetic control heat-insulation antifogging base film is 253-267 mu m, the thickness of the first hardening coating is 2-5 mu m, and the thickness of the antifogging coating is 2-5 mu m.

2. The magnetron heat-insulating antifog base film as claimed in claim 1, wherein the base material layer comprises a first base material layer, an adhesive layer, a second base material layer and a second hardening coating which are compounded into a whole in sequence from inside to outside, and the first hardening coating is coated on the surface of the first base material layer.

3. The magnetron heat-insulating antifog base film as claimed in claim 2, wherein the total thickness of the substrate layer is 245-265 μm, the thickness of the first substrate layer is 50-100 μm, the thickness of the adhesive layer is 30-45 μm, the thickness of the second substrate layer is 110-180 μm, and the thickness of the second hardening coating layer is 2-5 μm.