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Functional film structure and preparation method thereof, refrigeration film and refrigeration product

A technology of functional film and film layer structure, applied in refrigeration and liquefaction, refrigerators, chemical instruments and methods, etc., can solve the problems of affecting the service life of the reflective film structure, peeling off of the silver reflective film and the flexible base film, and the separation of the silver reflective film and the flexible base film. Large base film and other problems, to achieve the effect of improving oxidation resistance and salt spray resistance, ensuring interfacial bonding force, and improving overall adhesion

Active Publication Date: 2020-11-17
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown, the traditional reflective film structure 1 includes a flexible base film 11, a silver reflective film 12, an adhesive layer 13, and a flexible substrate 14 that are stacked in sequence. Although the reflectivity is high, the adhesive layer will Large shrinkage stress is generated, which leads to deformation of the silver reflective film, which causes a large stress at the interface joint between the silver reflective film and the flexible base film, which in turn causes the silver reflective film to peel off from the flexible base film
In addition, due to the poor corrosion resistance of the silver reflective film, especially in environments such as high temperature and high humidity, it will seriously affect the service life of the reflective film structure.

Method used

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  • Functional film structure and preparation method thereof, refrigeration film and refrigeration product
  • Functional film structure and preparation method thereof, refrigeration film and refrigeration product
  • Functional film structure and preparation method thereof, refrigeration film and refrigeration product

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preparation example Construction

[0035] The preparation method of the above-mentioned functional film structure comprises,

[0036] S1: Provide basement film;

[0037] S2: setting a reflective layer on the surface of the base film;

[0038] S3: forming a stress buffer layer on the surface of the reflective layer away from the base film, wherein the stress buffer layer has pores, the pores have a diameter of 80nm-100nm, and the pores are in the stress buffer layer The volume percentage is 30%-40%. Among them, the deposition angle range is 60°-70°, and the target-base distance is 11cm-13cm.

[0039] The preparation method of the stress buffer layer 25 is not limited, such as: magnetron sputtering method, electron evaporation method, etc., as long as pores can be formed. The inventors have found through experiments that the bonding effect between the stress buffer layer 25 and the reflective layer 23 formed by the magnetron sputtering method is the best. The principle of the buffering effect of the stress bu...

Embodiment 1

[0063] Such as figure 2 , the functional film structure of this embodiment includes a base film and a reflective layer and a stress buffer layer sequentially stacked on the base film.

[0064] In the functional film structure of this embodiment, the thickness of the base film is 50 μm, and the material of the base film is polyethylene terephthalate; the thickness of the reflection layer is 90 nm, and the material of the reflection layer is silver; the thickness of the stress buffer layer The thickness is 800nm, and the material of the stress buffer layer is Ti. The pore diameter of the prepared stress buffer layer is 90 nm, and the volume percentage of the pores in the stress buffer layer is 34%.

[0065] The functional film structure is installed on the polymer film in an adhesive manner, and the stress buffer layer is pasted on the adhesive layer to obtain a cooling film.

Embodiment 2

[0067] Such as image 3 , The functional film structure of this embodiment includes a base film and a first barrier layer, a reflective layer and a stress buffer layer sequentially stacked on the base film.

[0068] In the functional film structure of this embodiment, the thickness of the base film is 50 μm, and the material of the base film is polyethylene terephthalate; the thickness of the first barrier layer is 20 nm, and the material of the first barrier layer is TiN x The thickness of the reflective layer is 90nm, and the material of the reflective layer is silver; the thickness of the stress buffer layer is 800nm, and the material of the stress buffer layer is Ti. The pore diameter of the prepared stress buffer layer is 90 nm, and the volume percentage of the pores in the stress buffer layer is 34%.

[0069] The functional film structure is installed on the polymer film in an adhesive manner, and the stress buffer layer is pasted on the adhesive layer to obtain a cooli...

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Abstract

The invention relates to a functional film structure, a preparation method thereof, a refrigeration film and a refrigeration product. The functional film structure comprises a base film, a reflectinglayer and a stress buffer layer, the reflecting layer and the stress buffer layer are sequentially stacked on the base film, pores are formed in the stress buffer layer, the pore diameter of the poresranges from 80 nm to 100 nm, and the volume percentage of the pores in the stress buffer layer ranges from 30% to 40%. In the preparation process of the refrigeration film, pores in the stress bufferlayer in the functional film structure can release shrinkage stress caused by volume change when a bonding layer is cured into a bonding layer, so that interface bonding among film layers in the refrigeration film is excellent, and the overall adhesive force is high. The pore diameter of the pores in the stress buffer layer and the volume percentage of the pores can give consideration to the stress buffer effect and binding force of the stress buffer layer. Meanwhile, the refrigeration film has excellent oxidation resistance, salt mist resistance and the like, and is long in service life andgood in cooling effect.

Description

technical field [0001] The invention relates to the field of film technology, in particular to a functional film structure and a preparation method thereof, a refrigeration film and refrigeration products. Background technique [0002] Such as figure 1 As shown, the traditional reflective film structure 1 includes a flexible base film 11, a silver reflective film 12, an adhesive layer 13, and a flexible substrate 14 that are stacked in sequence. Although the reflectivity is high, the adhesive layer will A larger shrinkage stress is generated, which causes the silver reflective film to deform, so that a larger stress will be generated at the interface joint between the silver reflective film and the flexible base film, which in turn causes the silver reflective film to peel off from the flexible base film. In addition, due to the poor corrosion resistance of the silver reflective film, especially in environments such as high temperature and high humidity, it will seriously a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/26B32B7/12B32B9/00B32B9/04B32B15/00B32B15/04B32B15/09B32B15/20B32B27/36B32B37/00F25B23/00
CPCB32B3/26B32B7/12B32B9/00B32B9/04B32B9/041B32B9/045B32B15/00B32B15/04B32B15/09B32B15/20B32B27/36B32B37/00F25B23/00
Inventor 徐绍禹颜毓雷
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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