Transparent heat-insulating ultraviolet-proof film based on photonic quasicrystal material and preparation method thereof

A photonic quasicrystal and UV protection technology, which is applied in the direction of film/flaky adhesives, coatings, adhesives, etc., can solve the problems of high sealing requirements, difficulty in wide application, high cost, etc., and achieve excellent heat insulation, excellent Transparent heat insulation and UV protection performance, structural color and transparency adjustable effect

Active Publication Date: 2020-09-22
FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with coated heat-reflective glass (strong reflection, light pollution) and vacuum glass (high sealing requirements, expensive), glass film mainly prepares infrared and ultraviolet shielding materials as films and sticks them on the glass surface. This technology can solve the problem well. Glass heat insulation and ultraviolet shielding problems, and flexible application, but the current cost of this type of film is still high, it is difficult to be widely used

Method used

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  • Transparent heat-insulating ultraviolet-proof film based on photonic quasicrystal material and preparation method thereof
  • Transparent heat-insulating ultraviolet-proof film based on photonic quasicrystal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A transparent heat-shielding UV-resistant film based on photonic quasicrystal materials, such as figure 1 As shown, including a transparent substrate layer, a photonic quasicrystal functional film layer, an adhesive layer and a peelable protective layer;

[0043] Among them, the transparent substrate is a PET film with a thickness of 150 microns; the photonic quasicrystal functional film layer is a photonic crystal film composed of core-shell microspheres with a particle size of 280 nanometers and cesium tungsten bronze particles with a particle size of 90 nanometers, with a thickness of 150 microns. Micron;

[0044] The photonic quasicrystal functional film layer is coated on the transparent PET substrate by roll coating, and then the photonic quasicrystal functional film layer is obtained by uniaxially pressing the nuclear microspheres and functional nanoparticles in the structured film;

[0045] Then, a polyacrylate adhesive layer is coated on the photonic quasicrys...

Embodiment 2

[0058] The structure of the transparent heat-insulating and anti-ultraviolet film is the same as in Example 1, and the specific preparation process is as follows:

[0059] (1) Preparation of monodisperse core-shell polymer emulsion

[0060] Using the same experimental procedure as in Example 1, in the first step of the formula, the addition of sodium lauryl sulfate is changed to 1.80 grams to prepare the seed emulsion, and then the core-shell emulsion is obtained through gradual polymerization, and the final product polymer microspheres The size is 252nm, the polydispersity index PDI of the microsphere is 0.12;

[0061] (2) Preparation of prefabricated emulsion dispersion

[0062] The same experimental procedure as in Example 1 was used to prepare the functional nanoparticle aqueous slurry, and then 50g of the infrared functional nanoparticle slurry was mixed with 1000g of the core-shell microsphere emulsion and stirred evenly to obtain a photonic quasicrystal functional thin...

Embodiment 3

[0067] The structure of the transparent heat-insulating and anti-ultraviolet film is the same as in Example 1, and the specific preparation process is as follows:

[0068] (1) Preparation of monodisperse core-shell polymer emulsion

[0069] Using the same experimental procedure as in Example 1, in the first step of the formula, the addition of sodium lauryl sulfate is changed to 2.10 grams to prepare the seed emulsion, and then the core-shell emulsion is obtained through gradual polymerization, the size of the polymer microspheres 231nm, the polydispersity index PDI of microspheres is 0.10;

[0070] (2) Preparation of prefabricated emulsion dispersion

[0071] Using the same experimental procedure as in Example 1 to prepare functional nanoparticle aqueous slurry, then mix 60g of infrared functional nanoparticle slurry with 1000g of core-shell microsphere emulsion, and stir evenly to obtain a photonic quasicrystal functional thin film layer prefabricated emulsion dispersion; ...

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Abstract

The invention belongs to the technical field of film materials, and particularly relates to a transparent heat-insulating ultraviolet-proof composite film based on a photonic quasicrystal material anda preparation method thereof. The composite film structurally comprises a transparent substrate layer, a photonic quasicrystal functional film layer, an adhesive layer and a strippable layer. The photonic quasicrystal film is formed by polymer core-shell-structure microspheres and infrared functional nanoparticles which are stacked and arranged in a three-dimensional ordered manner through a specific process, and has adjustable structure color and optical transparency. The structural color, transparency and ultraviolet and infrared blocking wavelength range of the film can be regulated and controlled by regulating and controlling the core microsphere size, shell thickness and refractive index of the core-shell-structure microspheres and the content of the infrared functional nanoparticles, and the ultraviolet and infrared blocking efficiency can also be controlled by regulating and controlling the thickness. The formed composite film is high in ultraviolet light blocking efficiency, high in visible light transmittance and good in heat insulation effect, and has excellent transparent heat insulation ultraviolet-proof and explosion-proof performance, and can be used for energy conservation, explosion prevention and the like of automobiles and building glass.

Description

technical field [0001] The invention belongs to the technical field of film materials, and in particular relates to a transparent heat-insulating and anti-ultraviolet film and a preparation method thereof. Background technique [0002] For functional reasons such as aesthetics and effective use of sunlight, glass is more and more used in the construction field and the automotive industry, but sometimes its good light transmission also makes the sunlight too strong, which brings a series of problems. We know that the sunlight reaching the earth's surface is mainly composed of infrared light, visible light and ultraviolet light, and the radiated heat is mainly concentrated in the visible light region and infrared light region. In addition, ultraviolet light has high energy. A moderate amount of ultraviolet light is beneficial to health, but excessive ultraviolet radiation can easily damage the eyes and skin and induce diseases; ultraviolet radiation is also the biggest cause o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C08J7/04C09D7/61C09D151/00C08L67/02
CPCC09J7/255C08J7/0427C09D7/61C09D151/003C08J2367/02C08J2451/00C08K2201/011C08K2003/3036C09J2467/006C09J2433/00C08K3/22C08K3/30
Inventor 汪长春
Owner FUDAN UNIV
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