CN214027574U - Refrigeration film, article comprising refrigeration film - Google Patents

Abstract

The utility model relates to a refrigeration membrane, including the basic unit and in proper order range upon range of set up in reflection stratum, gluing agent layer and the fluorine-containing resin layer in the basic unit, gluing agent layer include the colloid and distribute in functional additive in the colloid, gluing agent layer can pass through atmospheric window emission heat with the infrared radiation mode. The utility model discloses still relate to a goods including refrigeration membrane. The utility model discloses a weatherability and the refrigeration effect of refrigeration membrane are excellent, and light pollution is low, use the utility model discloses a goods of refrigeration membrane have excellent refrigeration effect at the emissivity more than or equal to 93% of 7 mu m-14 mu m wave band, at the reflectivity more than or equal to 92% of 300nm-2500nm wave band, simultaneously, the glossiness of goods is low, can effectively reduce light pollution when using.

Description

Refrigeration film, article comprising refrigeration film

Technical Field

The utility model relates to a film technology field especially relates to refrigeration membrane, including refrigeration membrane's goods.

Background

The refrigeration film can transmit heat to the outer space in a mode of reflecting sunlight and infrared radiation of an atmospheric window waveband, so that the attached matrix achieves the effect of cooling. However, since the refrigeration film is generally used outdoors, it is necessary to increase a protective layer in consideration of weather resistance, and add an anti-aging auxiliary such as a UV absorber, a UV reflecting agent, and an antioxidant, and the reflectance + absorptance + transmittance (approximately equal to 0) of the refrigeration film becomes 1, and when the anti-aging auxiliary is added, the absorptance in the 0.3 μm to 2.5 μm band increases, thereby decreasing the reflectance of the refrigeration film and further decreasing the refrigeration effect.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a refrigeration film having excellent weather resistance and refrigeration effect and low light pollution, and an article including the refrigeration film.

The utility model provides a refrigeration membrane, refrigeration membrane include the basic unit and stack gradually set up in reflection stratum, gluing agent layer and fluorine resin layer on the basic unit, gluing agent layer include the colloid and distribute in functional additive in the colloid, gluing agent layer can pass through atmospheric window emission heat with the infrared radiation mode.

In one embodiment, the difference between the refractive index of the colloid and the refractive index of the functional additive is X, and the absolute value of X is greater than or equal to 0.05.

In one embodiment, the functional additive has a refractive index of 1.5 or more or 1.43 or less.

In one embodiment, the adhesive layer includes at least one of an acrylate adhesive layer and a polyurethane adhesive layer, and the thickness of the adhesive layer is 1 μm to 20 μm.

In one embodiment, the particle size of the functional additive is smaller than the thickness of the adhesive layer, and the particle size of the functional additive is 0.2 μm to 15 μm.

In one embodiment, the reflective layer has a thickness of 1nm to 500 nm.

In one embodiment, the reflective layer includes at least one of a metal layer and an alloy layer.

In one embodiment, the thickness of the fluororesin layer is 15 μm to 100 μm.

In one embodiment, the base layer has a thickness of 5 μm to 500 μm.

In one embodiment, the base layer is selected from a polymeric film.

The utility model discloses an among the refrigeration membrane, first, fluorine-containing resin layer has excellent weatherability, and gluing agent layer also has certain weatherability, so, the weatherability of refrigeration membrane is excellent, need not to increase the protective layer, also need not to add anti-aging auxiliary agents such as UV absorbent, UV reflection agent and anti-oxidant in the whole refrigeration membrane, both can reduce the cost of refrigeration membrane, also can not reduce the reflectivity of refrigeration membrane, makes the refrigeration membrane have excellent reflectivity; secondly, functional additives are distributed in the adhesive layer, so that the adhesive layer can transfer heat to the outer space in an infrared radiation mode of an atmospheric window waveband, and meanwhile, the fluorine-containing resin layer can also transfer heat to the outer space in an infrared radiation mode of the atmospheric window waveband, so that the refrigeration film has excellent emissivity through the synergistic effect of the adhesive layer and the fluorine-containing resin layer; thirdly, the functional additives in the adhesive layer have different refractive indexes from those of the colloid, so that the emissivity and the reflectivity of the refrigeration film can be improved. Therefore, the emissivity of the refrigeration film of the utility model is more than or equal to 93% at the wave band of 7-14 μm, and the reflectivity is more than or equal to 92% at the wave band of 300-2500 nm, thus having excellent refrigeration effect.

Meanwhile, the refractive indexes of the functional additive and the colloid in the adhesive layer are different, so that light can be refracted for many times in the refrigeration film, the glossiness of the refrigeration film is smaller than or equal to 80, and the light pollution of the refrigeration film in the use process can be effectively reduced.

An article comprising a refrigeration film, the article comprising a substrate and the refrigeration film as described above disposed on the substrate, wherein a surface of the fluorine-containing resin layer in the refrigeration film, which is away from the adhesive layer, is a light incident side.

In one embodiment, the substrate comprises at least one of a metal substrate, a plastic substrate, a glass substrate, a rubber substrate, a bitumen substrate, a cement substrate, a textile substrate.

In one of them embodiment, the goods is radiation refrigeration waterproofing membrane, the base member is one of petroleum asphalt tyre asphalt felt, the fine child coiled material of petroleum asphalt glass, aluminium foil face coiled material, SBS modified asphalt waterproofing membrane, APP modified asphalt waterproofing membrane, EPT coiled material, polyvinyl chloride coiled material, chlorinated polyethylene coiled material, rubber blend coiled material, TPO waterproofing membrane.

In one embodiment, the article is a radiation-cooled metal sheet and the substrate is one of an aluminum alloy metal sheet, a zinc-plated metal sheet, a tin-plated metal sheet, a composite steel metal sheet, and a color-coated steel metal sheet.

In one embodiment, the article is a radiation-cooled textile, the radiation-cooled textile being one of a cloth, an umbrella, a sunshade, a tent, a car cover, a curtain, a garment, a hat.

The utility model discloses a goods including above-mentioned refrigeration membrane has excellent refrigeration effect at the emissivity more than or equal to 93% of 7 mu m-14 mu m wave band, at the reflectivity more than or equal to 92% of 300nm-2500nm wave band, and simultaneously, the glossiness of goods is low, can effectively reduce light pollution when using.

Drawings

Fig. 1 is a schematic structural view of the refrigeration film of the present invention;

fig. 2 is a schematic structural view of an article of the present invention including a refrigeration film.

In the figure: 10. a refrigeration film; 101. a base layer; 102. a reflective layer; 103. an adhesive layer; 103a, colloid; 103b, functional additives; 104. a fluorine-containing resin layer; 20. a substrate.

Detailed Description

The present invention provides a refrigeration film, and a product including the refrigeration film, which will be further described below with reference to the accompanying drawings.

As shown in fig. 1, for the utility model provides a refrigeration membrane 10, including basic unit 101 and in proper order stack up set up in reflection stratum 102, gluing agent layer 103 and fluorine-containing resin layer 104 on the basic unit 101, gluing agent layer 103 includes colloid 103a and distributes in functional additive 103b in colloid 103a, gluing agent layer 103 can pass through atmospheric window emission heat with the infrared radiation mode.

The utility model discloses an among the refrigeration membrane 10, gluing agent layer 103 can transmit the heat to outer space with the infrared radiation's of atmosphere window wave band mode, and fluorine-containing resin layer 104 also can transmit the heat to outer space with the infrared radiation's of atmosphere window wave band mode to, through gluing agent layer 103 and fluorine-containing resin layer 104 synergism, can effectively improve the emissivity of refrigeration membrane 10.

The utility model discloses an among the refrigeration membrane 10, fluororesin layer 103 has excellent weatherability, and gluing agent layer 103 also has certain weatherability, so, refrigeration membrane 10's weatherability is excellent, need not to increase the protective layer, also need not to add anti-aging auxiliary agents such as UV absorbent, UV reflecting agent and anti-oxidant among the whole refrigeration membrane 10, can not reduce refrigeration membrane 10's reflectivity, makes refrigeration membrane 10 have excellent reflectivity.

Meanwhile, the functional additive 103b in the adhesive layer 103 has a different refractive index from the colloid 103a, so that the emissivity and the reflectivity of the refrigeration film 10 can be further improved in an auxiliary manner, and light can be refracted for multiple times in the refrigeration film 10, so that the glossiness of the refrigeration film 10 is reduced.

Therefore, the utility model discloses a reflectance more than or equal to 93%, and glossiness 80 less than or equal to at 300nm-2500nm wave band at the emissivity of 7 mu m-14 mu m wave band of refrigeration membrane 10 makes the utility model discloses a refrigeration membrane 10 not only has excellent refrigeration effect, and glossiness is low moreover, can effectively reduce the light pollution in the use.

In one or more embodiments, the difference between the refractive index of the colloid 103a and the refractive index of the functional additive 103b is X, and the absolute value of X is greater than or equal to 0.05, so as to further increase the emissivity and the reflectivity of the refrigeration film 10 and further reduce the glossiness of the refrigeration film 10 by increasing the difference between the refractive indices of the colloid 103a and the functional additive 103 b.

The utility model discloses an in the refrigeration membrane 10, colloid 103a in the gluing agent layer 103 is formed by gluing agent solidification, and the main component of gluing agent is the bonding material, plays the bonding effect, and its nature has decided performance, usage and the service condition of gluing agent, the bonding material is selected from the compound that contains at least one kind of group in ester group, the urethane group in the molecular chain.

The adhesive contains a curing agent, a toughening agent, a diluent, and inorganic fillers such as talc, asbestos powder, and aluminum powder, in addition to the binder.

In the refrigeration membrane 10 of the present invention, the material of the fluorine-containing resin layer 104 includes at least one of ethylene-tetrafluoroethylene copolymer, polyvinylidene fluoride, ethylene chlorotrifluoroethylene copolymer, tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer, and perfluoroethylene propylene copolymer.

The fluororesin layer of the present invention does not contain the functional additive 103b, and thus the fluororesin layer can be prevented from being degraded, and the weather resistance and the refrigeration effect of the refrigeration film 10 can be ensured during long-term use.

The fluorine-containing resin layer 104 may be a fluorine-containing resin coating layer or a fluorine-containing resin film. In one or more embodiments, the fluororesin layer 104 is preferably a fluororesin film, and more preferably a lathed film, such that the fluororesin layer 104 can be surface-treated by corona treatment, ultraviolet light irradiation treatment, plasma surface treatment, or the like, to generate polar groups on the treated surface of the fluororesin layer 104, wherein the polar groups generally include at least one of hydroxyl groups and carbonyl groups.

The hydroxyl, carbonyl and other polar groups on the surface of the fluorine-containing resin layer 104 can react with the bonding substance to form chemical bonds, so that the fluorine-containing resin layer 104 and the adhesive layer 103 are bonded by the adhesive, and the bonding strength is high. Meanwhile, the polar group can also improve the polarity and the surface energy of the fluorine-containing resin layer 104, so that the surface energy of the fluorine-containing resin layer is more matched with the surface energy of the adhesive layer 103, the bonding strength is further improved in an auxiliary manner, and the high-strength bonding of the fluorine-containing resin layer 104 and the adhesive layer 103 is further realized.

The surface of the fluorine-containing resin layer 104 for bonding to the adhesive layer is set as a first surface, and the surface away from the first surface is set as a second surface. In one or more embodiments, the first surface is subjected to surface treatment, so that the first surface contains polar groups such as hydroxyl groups and carbonyl groups, and the bonding strength between the fluorine-containing resin layer 104 and the adhesive layer 103 is ensured; and the second surface is not surface treated to keep the second surface of the fluororesin layer 104 low in surface energy.

When the refrigeration film 10 is used, the second surface of the fluorine-containing resin layer 104 is the light incident side of the refrigeration film 10 and is usually exposed to the environment, and when the second surface is a surface with low surface energy, the adhesion of pollutants on the surface of the refrigeration film 10 can be effectively reduced, the cleanliness of the refrigeration film 10 is maintained, and the refrigeration effect of the refrigeration film 10 in long-term use is further ensured.

In one or more embodiments, the thickness of the fluororesin layer 104 is 15 μm to 100 μm, preferably 25 μm to 50 μm, to secure the emissivity as well as the weather resistance of the refrigeration film 10.

The utility model discloses an among the refrigeration membrane 10, the surface energy of reflection stratum 102 is higher, can form the bonding on high surface energy layer with high cohesion energy ester group, urethane group in the bonding material, and bonding strength is big. Meanwhile, the bound water adsorbed on the surface of the reflecting layer 102 can also form hydrogen bonds with ester groups and urethane groups in the binding substance to realize binding, so that the binding strength between the reflecting layer 102 and the adhesive layer 103 is improved in an auxiliary manner, and further, the high-strength binding between the reflecting layer 102 and the adhesive layer 103 is realized.

The surface of the reflective layer 102 inevitably contains adsorbed water, and a trace amount of adsorbed water or hydrate is present on the surface even after polishing.

In the refrigeration film 10 of the present invention, the reflective layer 102 includes at least one of a metal layer and an alloy layer. The metal layer comprises at least one of a silver layer, an aluminum layer, a chromium layer, a titanium layer, a copper layer and a nickel layer, and the alloy layer comprises at least one of a silver alloy layer, an aluminum alloy layer, a chromium alloy layer, a titanium alloy layer, a copper alloy layer and a nickel alloy layer.

The reflective layer 102 made of a metal material may be directly formed on the base layer 101 by a magnetron sputtering method or the like, and has high adhesion strength with the base layer 101.

In one or more embodiments, the thickness of the reflective layer 102 is 1nm to 500nm, preferably 80nm to 200nm, which not only ensures the reflectivity of the refrigeration film 10, but also reduces the stress of the reflective layer 102, and at the same time, reduces the cost of the refrigeration film 10.

In one or more embodiments, the reflective layer 102 may be formed by stacking more than two sub-reflective layers, so that the stress accumulation of the reflective layer 102 may be better reduced.

Therefore, the utility model discloses in refrigeration membrane 10, all have excellent interlayer bonding strength between basic unit 101 and the reflection stratum 102, between reflection stratum 102 and the gluing agent layer 103, between gluing agent layer 103 and the fluorine-containing resin layer 104 to can effectively avoid refrigeration membrane 10 to appear the fault phenomenon of peeling off when crooked coiling and long time use, guarantee refrigeration membrane 10's stability in use.

The adhesive includes a phenol resin adhesive, an acrylate adhesive, a polyurethane adhesive, and the like, and the adhesive satisfying the conditions includes at least one of the acrylate adhesive and the polyurethane adhesive in consideration of the adhesion strength between the adhesive layer 103 and the fluorine-containing resin layer 104 and between the adhesive layer 103 and the reflective layer 102, and also in consideration of the weather resistance of the adhesive layer 103. Thus, the adhesive layer 103 includes at least one of an acrylate adhesive layer and a polyurethane adhesive layer.

In the acrylate adhesive, the adhesive substance is polyacrylate and has a refractive index of about 1.48, and in the polyurethane adhesive, the adhesive substance is polyisocyanate or polyurethane and has a refractive index of about 1.45. Therefore, in order to secure the difference in refractive index between the colloid 103a and the functional additive 103b, the refractive index of the functional additive 103b is preferably 1.5 or more or 1.43 or less.

The functional additive 103b satisfying the refractive index of 1.5 or more includes SiC and SiO₂、CaSO₄、BaSO₄And the functional additive 103b satisfying a refractive index of 1.43 or less includes TiN and the like, and is specifically selected according to the adhesive used. When selected, the shape of the functional additive 103b is not particularly limited, and may be any shape such as spherical, ellipsoidal, and rod-like.

In order to ensure the adhesion of the adhesive layer 103 to the reflective layer 102 and the fluorine-containing resin layer 104, in one or more embodiments, the thickness of the adhesive layer 103 is 1 μm to 20 μm, preferably 3 μm to 15 μm.

The particle size of the functional additive 103b is smaller than the thickness of the adhesive layer 103, preferably 0.2 μm to 15 μm, and more preferably 0.5 μm to 8 μm, so as to ensure that the functional additive 103b is dispersed inside the adhesive layer 103 and does not protrude out of the surface of the adhesive layer 103, and ensure the contact area between the adhesive layer 103 and the reflective layer 102 and between the adhesive layer 103 and the fluorine-containing resin layer 104.

In order to ensure the emissivity of the adhesive layer 103 and not affect the adhesive property thereof, in one or more embodiments, the mass percentage of the functional additive 103b in the adhesive layer 103 is 0.5% to 20%, preferably 2% to 10%.

In the refrigeration film 10 of the present invention, the base layer 101 is used for protecting the reflective layer 102, and is used for being attached to and fixed with the substrate to be cooled when the refrigeration film 10 is used, and the thickness of the base layer 101 is 5 μm to 500 μm, preferably 15 μm to 75 μm. The material of the base layer 101 is selected from at least one of resins, such as polyesters, polyacrylates, polyamides, polyurethanes, polyolefins, and fluororesins.

In one or more embodiments, the substrate 101 is selected from at least one of a polyethylene terephthalate film, a polybutylene terephthalate film, a polyethylene naphthalate film, a polyethylene terephthalate-1, 4-cyclohexanedimethanol film, a polycaprolactam film, a polyhexamethylene adipamide film, a polydodecalactam film, a polydecamethylene sebacamide film, a polyethylene film, a polypropylene film, a poly-4-methyl-1-pentene film, a fluoroethylene propylene copolymer film, an acrylonitrile-butadiene-styrene plastic film, a polymethyl methacrylate film, a polyvinylidene fluoride film, and an ethylene chlorotrifluoroethylene copolymer film, preferably having a high tensile strength, Low cost biaxially oriented polyester film (BOPET).

As shown in fig. 2, for the product including the refrigeration film provided by the present invention, the product includes the base 20 and the refrigeration film 10 disposed on the base 20, the surface of the fluorine-containing resin layer 104 in the refrigeration film 10, which is far away from the adhesive layer 103, is the light incident side, i.e. the second surface of the fluorine-containing resin layer 104 is the light incident side.

In one or more embodiments, the substrate 20 comprises at least one of a metal substrate, a plastic substrate, a glass substrate, a rubber substrate, a bitumen substrate, a cement substrate, a textile substrate.

In one or more embodiments, the goods are radiation refrigeration waterproofing membrane, base member 20 includes at least one in petroleum asphalt paper child linoleum, the fine child coiled material of petroleum asphalt glass, aluminium foil face coiled material, SBS modified asphalt waterproofing membrane, APP modified asphalt waterproofing membrane, EPT coiled material, polyvinyl chloride coiled material, chlorinated polyethylene coiled material, rubber blend coiled material, TPO waterproofing membrane.

In one or more embodiments, the article is a radiation-cooled metal sheet and the substrate 20 comprises at least one of an aluminum alloy metal sheet, a zinc-plated metal sheet, a tin-plated metal sheet, a composite steel metal sheet, a color-coated steel metal sheet.

In one or more embodiments, the article is a radiation-cooled textile including at least one of an umbrella, a canopy, a tent, a vehicle cover, a curtain, a garment, a hat.

Therefore, the product of the refrigeration film has the advantages of high emissivity (93% or more) at the waveband of 7-14 μm and high reflectivity (92% or more) at the waveband of 300-2500 nm, excellent refrigeration effect, low glossiness and effective reduction of light pollution during use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The refrigeration film is characterized by comprising a base layer, and a reflecting layer, an adhesive layer and a fluorine-containing resin layer which are sequentially arranged on the base layer in a stacking mode, wherein the adhesive layer can emit heat through an atmospheric window in an infrared radiation mode.

2. A refrigeration film as recited in claim 1, wherein the adhesive layer comprises at least one of an acrylate adhesive layer and a polyurethane adhesive layer, and the thickness of the adhesive layer is 1 μm to 20 μm.

3. A refrigeration film according to any one of claims 1 to 2, wherein the thickness of the reflective layer is 1nm to 500nm, and the reflective layer comprises at least one of a metal layer and an alloy layer.

4. A refrigerant film as claimed in any one of claims 1 to 2, wherein said fluororesin layer has a thickness of 15 μm to 100 μm.

5. A refrigerant film as claimed in any one of claims 1 to 2, wherein said base layer has a thickness of 5 μm to 500 μm, and said base layer is selected from a polymer film.

6. An article comprising a refrigeration film, wherein the article comprises a substrate and the refrigeration film of claim 1 disposed on the substrate, and wherein a surface of the fluororesin layer in the refrigeration film, which is away from the adhesive layer, is a light-in side.

7. The article comprising a refrigeration film of claim 6, wherein the matrix comprises at least one of a metal matrix, a plastic matrix, a glass matrix, a rubber matrix, a bitumen matrix, a cement matrix, a textile matrix.

8. The product of claim 6, wherein the product is a radiation-cooling waterproof coiled material, and the substrate is one of a petroleum asphalt paper-based asphalt felt, a petroleum asphalt glass fiber-based coiled material, an aluminum foil-faced coiled material, an SBS modified asphalt waterproof coiled material, an APP modified asphalt waterproof coiled material, an ethylene propylene diene monomer coiled material, a polyvinyl chloride coiled material, a chlorinated polyethylene coiled material, a rubber-blended coiled material, and a TPO waterproof coiled material.

9. The article comprising a refrigeration film of claim 6, wherein the article is a radiation-cooled metal sheet and the substrate is one of an aluminum alloy metal sheet, a zinc-plated metal sheet, a tin-plated metal sheet, a composite steel metal sheet, a color-coated steel metal sheet.

10. The article comprising a refrigeration film of claim 6, wherein the article is a radiation-cooled textile, the radiation-cooled textile being one of a cloth, an umbrella, a sunshade, a tent, a vehicle cover, a window covering, a garment, a hat.

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