CN112552833A - Safe heat-insulation roof car cover film and preparation method thereof - Google Patents
Safe heat-insulation roof car cover film and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a safe heat-insulation roof car cover film and a preparation method thereof. The safe heat-insulation roof car clothing film provided by the invention is composed of a first release film layer, a scratch-resistant layer, a first base material layer, a first metal layer, a laminating adhesive layer, a second metal layer, a second base material layer, a mounting adhesive layer and a second release film layer which are sequentially stacked. The preparation method of the safe heat-insulation roof automobile coating film provided by the invention has the advantages that the process is simple, the preparation time is greatly shortened, the firmness of the metal material sputtered on the surface of the base material can be effectively controlled, and the appearance and the heat insulation effect cannot be influenced by any stretching during preparation.
Description
Technical Field
The invention relates to a heat insulation film, in particular to a heat insulation roof car clothing film with high safety performance and a preparation method thereof.
Background
Conventional paint protective films, i.e., films attached to automobile bodies, building surfaces, etc., provide only basic protective effects. When the automobile is completely exposed to the sun, about 40% of heat can be directly conducted into the automobile through the roof, and the rest about 60% of heat is directly conducted from the periphery of the automobile, so that the temperature in the automobile is too high, and the energy consumption of an air conditioner is too large; the long-term ultraviolet irradiation also causes the fading of the automobile finish and the accelerated aging of the surface material. With the development of science and technology, most automobiles on the market are provided with skylights, panoramic skylights are also popularized, and once the skylight made of glass is impacted by broken stones and high-altitude objects, glass is broken and splashed easily to hurt people in the automobiles, so that potential safety hazards are caused.
At present, the traditional car cover film has the defects of poor heat insulation performance, weak radiation protection capability, poor toughness and the like, and the car cover film integrating the safety and the heat insulation functions is rare. The car clothing film on the market at present adopts PVC (polyvinyl chloride) and TPU (thermoplastic polyurethane elastomer rubber, such as polybutylene terephthalate) materials as base materials, can only play a basic protection role on the surface of an automobile body or a building, cannot effectively reflect ultraviolet rays and infrared rays, cannot be attached to the surface of a car roof with large radian, and is low in safety performance, unsatisfactory in heat insulation effect, short in service life and limited in product popularization.
In addition, when producing car clothing films, the process flow is quite long, and generally takes several hours.
Disclosure of Invention
The invention aims to provide a safe heat-insulation roof car cover film and a preparation method thereof. The car roof car cover film can be tightly attached to the car roof with large radian on the basis of protecting the surface of a car skylight, a car body or a building, has high toughness, and cannot cause glass splashing even being impacted, so that the safety of a person in a car can be effectively protected; meanwhile, the solar energy heat-insulation and heat-preservation film can reflect a large amount of ultraviolet rays and infrared rays, and plays a role in heat insulation and temperature reduction under the condition that the sun is exposed for a long time. The method has the characteristics of short process flow and less time consumption.
The invention provides a safe heat-insulation roof car clothing film, which is formed by sequentially laminating the following layers:
(1) a first release film layer;
(2) a scratch-resistant layer (also called a modified polyurethane hardened coating) with the thickness of 2-30 μm;
(3) the first substrate layer is 20-300 mu m thick and is made of TPU (thermoplastic polyurethane elastomer rubber), PVC (polyvinyl chloride) or PET (thermoplastic polyester);
(4) the thickness of the first metal layer is 2-300 nm, and the material of the first metal layer is one or more (which can be alloy) of nickel, chromium, aluminum, gold, silver, copper and titanium;
(5) the adhesive layer (also called a pressure-sensitive adhesive layer) is 3-10 mu m thick;
(6) the thickness of the second metal layer is 2-300 nm, and the material of the second metal layer is one or more of nickel, chromium, aluminum, gold, silver, copper and titanium;
(7) the thickness of the second substrate layer is 20-300 microns, and the second substrate layer is made of TPU, PVC or PET;
(8) the mounting adhesive layer (also called a pressure sensitive adhesive layer) is 3-25 mu m thick;
(9) a second release film layer.
Further, the material of the first metal layer is nickel chromium, and the material of the second metal layer is nickel chromium.
Further, the first release film layer and the second release film layer are both PET release film layers, and the thickness of the first release film layer and the second release film layer is 16-75 micrometers.
Further, the material of the scratch-resistant layer is polyurethane, and the hardness is as high as 4H.
Furthermore, the laminating adhesive layer and the mounting adhesive layer are both acrylate pressure-sensitive adhesive layers.
Further, the material of the first base material layer is TPU, and the material of the second base material layer is TPU.
The preparation method of the safe heat-insulation roof car cover film comprises the following steps:
(1) sputtering one or more of nickel, chromium, aluminum, gold, silver, copper and titanium on one side of the first base material layer in a magnetron sputtering mode to form a first metal layer;
(2) sputtering one or more of nickel, chromium, aluminum, gold, silver, copper and titanium on one side of the second base material layer in a magnetron sputtering mode to form a second metal layer;
(3) coating a bonding glue layer on the surface of the first metal layer in a coating mode, and then compounding a second metal layer, and tightly bonding the first metal layer and the second metal layer;
(4) coating a scratch-resistant layer on the other side of the first base material layer, and compounding a release film layer to form a first release film layer;
(5) and coating a mounting adhesive layer on the other side of the second substrate layer, and compounding a release film layer to form a second release film layer.
The safe heat-insulation roof automobile cover film can be adhered to the surface of an automobile skylight, an automobile body, a building or a metal plate, can reflect ultraviolet rays and infrared rays to a great extent, and avoids the rise of the internal temperature of an automobile or a building under the long-time irradiation of the sun, so that the heat-insulation performance of the automobile or the building is improved, and the energy consumption is reduced; meanwhile, the automobile roof has the characteristics of strong flexibility and high stretchability, can be tightly attached to the surface of the automobile roof with large radian, cannot cause glass splash when being impacted, and protects the personal safety of personnel in the automobile.
The invention has the beneficial effects that: compared with the prior art, the safe heat-insulation roof car cover film provided by the invention has the advantages of moderate thickness, strong flexibility and high stretchability, can be tightly attached to any part of the surface of a car, has reflectivity of more than 75% to ultraviolet rays and infrared rays at 950nm wave bands under the condition of not changing the appearance of the original car paint car, and has good heat-insulation performance; the used base material is TPU, PVC or PET, so that the glass has high stretchability and high flexibility, can effectively prevent cracked glass from splashing in the vehicle when encountering impact, has high safety performance, is not easy to generate bubbles and wrinkles in the film pasting process, and has strong aesthetic property and convenient operation; the rete reasonable in design, the reflection of light can effectively be reduced to the double-deck metal level, can also protect the eyesight of car personnel when reducing light pollution, still has excellent resistant scraping, anti-oxidant, thermal-insulated and explosion-proof properties, long service life, easily realizes the volume production. The preparation method of the safe heat-insulation roof automobile coating film provided by the invention has the advantages that the process is simple, the preparation time is greatly shortened, the firmness of the metal material sputtered on the surface of the base material can be effectively controlled, and the appearance and the heat insulation effect cannot be influenced by any stretching during preparation.
Drawings
FIG. 1 is a schematic structural view of a safety heat insulation roof car cover film in one embodiment of the invention.
FIG. 2 is a photograph showing an infrared transmittance test of a sunroof when a safety heat-insulating roof car cover film according to an embodiment of the present invention is attached.
FIG. 3 is a photograph showing the infrared transmittance of the sunroof when the safety and thermal insulation roof covering film is not attached.
FIG. 4 is a graph of reflectance of a safety and thermal roof membrane for different wavelengths of light in accordance with one embodiment of the present invention.
Detailed Description
In order to more clearly explain technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
The preparation steps of the safe heat-insulation roof car clothing film are described in detail as follows:
(1) firstly, providing a PET release film layer, wherein the PET release film is stretched without obvious deformation under the condition that the tension is 1250-300N and is used as a first release film 1 or a second release film 9;
(2) providing a transparent flexible TPU, PVC or PET film as a first substrate layer 3, wherein the visible light wave band transmittance of the first substrate layer 3 is more than or equal to 45%; depositing a first metal layer 4 on the first substrate layer 3 by means of cathode and direct-current reactive magnetron sputtering, wherein the material of the first metal layer 4 can be one or any combination of more than one metal materials of nickel, chromium, aluminum, gold, silver, copper and titanium; the first metal layer 4 is used for blocking infrared rays and ultraviolet rays, the reflectivity of the metal layer to the infrared rays and the ultraviolet rays cannot be reduced along with the prolonging of the service time, the service life is prolonged, and the metal layer has a lasting high heat insulation effect;
(3) providing a transparent flexible TPU, PVC or PET film as a second base material layer 7, wherein the visible light wave band transmittance of the second base material layer 7 is more than or equal to 45%; depositing a second metal layer 6 on the second base material layer 7 in a cathode and direct-current reactive magnetron sputtering mode; the material of the second metal layer 6 can be one or any combination of more than one metal materials of nickel, chromium, aluminum, gold, silver, copper and titanium; the second metal layer 6 is used for avoiding reduction of the heat insulation effect caused by oxidation of the second base material layer, the superposition of the second metal layer 6 can better obstruct infrared rays and ultraviolet rays and reduce the reflectivity of the single-layer metal layer (the metal surfaces of the single-layer metal layer have strong reflection, when the metal surfaces of the two metal layers are attached, the same reflectivity can be mutually counteracted, the visual color of human eyes under sunlight is dark black and dark gray), the service life is prolonged, and the heat insulation effect is enhanced;
(4) coating a bonding adhesive layer 5 between a first metal layer 4 and a second metal layer 6 in a winding type coating line mode at a coating speed of 20 m/min, wherein the material of the bonding adhesive layer 5 is a pressure-sensitive adhesive commonly used in the prior art and generally comprises SBS, SIS, tackifying resin, a softening agent, an anti-aging agent, a coloring agent and the like; after the lamination is finished, the two layers of magnetic control metal films can be isolated from air more efficiently, the magnetic control metal films have the characteristic of strong oxidation resistance, the effect of reducing the reflectivity can be achieved, the visual fatigue of a driver is avoided, and the safety heat insulation durability of the safety heat insulation roof car cover film is further enhanced;
(5) coating a scratch-resistant layer 2 on the other side surface of the first base material layer 3 through a coating process, and compounding a first release film layer 1; the scratch-resistant layer 2 is not only scratch-resistant, but also antifouling and corrosion-resistant; the first release film layer 1 needs to be removed in the process of film pasting construction for the automobile, and has no substantial effect;
(6) coating an installation glue layer 8 on the other side of the second substrate layer 7 in a winding type coating and gluing line mode at a coating speed of 20 m/min, and compounding a second release film layer 9; the composite second release film layer 9 is used for protecting the transparent flexible TPU, PVC or PET film from being stretched and deformed under the condition of the tension of 250-300N in the magnetron sputtering process, so that the process requirement that the TPU, PVC or PET film is used as a coating substrate to sputter a metal material (one or any combination of more than one metal material of nickel, chromium, aluminum, gold, silver, copper and titanium) on the coating substrate is met.
Wherein, when the magnetron sputtering deposition coating film is carried out, the temperature in all the chambers is constant, and the constant temperature range in all the chambers is-15 ℃ to 20 ℃. Introducing mixed gas of argon and oxygen in a volume ratio of 5: 1-50: 1 into the corresponding chamber, and setting a sputtering vacuum degree to be 10-6Torr, stable pressure of plating film is 10-3Torr; the power of the double-rotating cathode and the intermediate frequency reaction magnetron sputtering is 10-20 Kw; the power of single rotary cathode and DC reactive magnetron sputtering is 0.3-2.5 Kw.
FIG. 1 is a schematic structural view of a prepared safety heat-insulating roof car cover film. In one exemplary embodiment, the safety and thermal roof membrane is composed of the following layers stacked in sequence:
(1) a first release film layer 1 with a thickness of 23 μm;
(2) a scratch-resistant layer 2 having a thickness of 8 μm;
(3) the first base material layer 3 is 150 mu m thick and made of TPU;
(4) a first metal layer 4 with a thickness of 12nm and made of nickel chromium;
(5) the adhesive layer 5 is 8 microns thick;
(6) the second metal layer 6 is 15nm thick and made of nickel chromium;
(7) the second base material layer 7 is 150 mu m thick and made of TPU;
(8) mounting a glue layer 8 with the thickness of 8 mu m;
(9) and a second release film layer 9 having a thickness of 75 μm.
The infrared ray blocking rate of the safe heat insulation car roof film provided by the invention is tested. The used test instrument is an LS122 IR infrared power meter, the infrared energy receiver is a wide-spectrum infrared power measuring instrument, is mainly used for infrared irradiance test and heat insulation effect demonstration or infrared transmittance test of materials such as heat insulation glass, heat insulation films and the like, and can also be used for measuring the infrared radiation energy power density in various light sources, namely the radiation energy power per square meter, and the unit is watt per square meter (W/m)2) The effect is visual and easy to understand.
Under the condition of direct irradiation of a 2000W solar lamp, the infrared transmittance of an automobile skylight attached with the safety heat-insulation automobile roof coating film provided by the invention and the infrared transmittance of an automobile skylight attached with a common automobile coating film (such as 3M brand, model CPXL-TPU) are respectively measured, and the two data are used for comparison. As a result, as shown in FIGS. 2 and 3, the sunroof having a heat-insulating top coat film and a safety cover film had an infrared transmittance of 1 Watt/square meter (W/m) in radiant energy power per square meter2) And the infrared transmittance of the automobile skylight adhered with the common automobile coating is 1650 watts per square meter (W/m) of radiant energy power per square meter2)。
As shown in fig. 4, the infrared blocking rate of the safety heat-insulation roof car cover film provided by the invention at the wavelength of 950nm is more than 75%, and the total blocking rate of solar energy is more than 50%, which shows that the safety heat-insulation roof car cover film provided by the invention has excellent heat-insulation performance.
Therefore, the barrier layer of the safe heat-insulation roof car clothing film provided by the invention has high reflectivity to ultraviolet rays and infrared rays, and the ornamental value and the aesthetic property are good through the matching of the metal-plated materials. Meanwhile, the safe heat-insulation roof car clothing film also has good oxidation resistance, scratch resistance and excellent heat-insulation performance. The preparation method of the safe heat-insulation car clothing film provided by the invention is simple in process and less in time consumption. The formation of the metal layer by magnetron sputtering requires about 5 minutes per layer (time is slightly different depending on the thickness), so that the manufacturing method can shorten the time of the whole process flow to twenty minutes.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (7)
1. The safe heat-insulation roof car clothing film is characterized by comprising the following layers which are sequentially stacked:
(1) a first release film layer;
(2) a scratch-resistant layer with a thickness of 2-30 μm;
(3) the thickness of the first substrate layer is 20-300 microns, and the first substrate layer is made of TPU, PVC or PET;
(4) the thickness of the first metal layer is 2-300 nm, and the material of the first metal layer is one or more of nickel, chromium, aluminum, gold, silver, copper and titanium;
(5) a gluing layer with the thickness of 3-10 μm;
(6) the thickness of the second metal layer is 2-300 nm, and the material of the second metal layer is one or more of nickel, chromium, aluminum, gold, silver, copper and titanium;
(7) the thickness of the second substrate layer is 20-300 microns, and the second substrate layer is made of TPU, PVC or PET;
(8) installing a glue layer, wherein the thickness of the glue layer is 3-25 mu m;
(9) a second release film layer.
2. The safety and thermal insulating roof membrane of claim 1, wherein the material of the first metal layer is nickel chromium and the material of the second metal layer is nickel chromium.
3. The safe and heat-insulating roof car clothing film as claimed in claim 1, wherein the first release film layer and the second release film layer are both PET release film layers, and the thickness of the PET release film layers is 16-75 μm.
4. The safety and thermal insulation roof car cover film as claimed in claim 1, wherein the material of the scratch-resistant layer is polyurethane, and the hardness is up to 4H.
5. The safe and insulated roof car cover film according to claim 1, wherein the adhesive layer and the mounting adhesive layer are both acrylate pressure sensitive adhesive layers.
6. The safety heat insulation roof car clothing film as claimed in claim 1, wherein the material of the first substrate layer is TPU, and the material of the second substrate layer is TPU.
7. The method for preparing a safety heat-insulating roof car cover film according to claim 1, comprising the steps of:
(1) sputtering one or more of nickel, chromium, aluminum, gold, silver, copper and titanium on one side of the first base material layer in a magnetron sputtering mode to form a first metal layer;
(2) sputtering one or more of nickel, chromium, aluminum, gold, silver, copper and titanium on one side of the second base material layer in a magnetron sputtering mode to form a second metal layer;
(3) coating a bonding glue layer between the first metal layer and the second metal layer, and tightly bonding the first metal layer and the second metal layer;
(4) coating a scratch-resistant layer on the other side of the first base material layer, and compounding a release film layer to form a first release film layer;
(5) and coating a mounting adhesive layer on the other side of the second substrate layer, and compounding a release film layer to form a second release film layer.
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