Electrochromic coating capable of effectively blocking ultraviolet rays, electrochromic film and preparation method thereof

An electrochromic film and electrochromic technology, applied in the field of dimming films, can solve the problem of limiting the application of electrochromic films, poor resistance to ultraviolet and ultraviolet aging of electrochromic films, and poor ultraviolet blocking performance of electrochromic films And other issues

Inactive Publication Date: 2021-05-07
ECO BAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The performance of the electrochromic film in the related art to ultraviolet and ultraviolet aging resistance is relatively poor. When the electrochromic film is used for car windows, doors and windows, and house windows, firstly, there are more ultraviolet rays entering the room and the car, which makes the indoor , the temperature inside the car is too high; secondly, the service life of the electrochromic film is also short
Therefore, the poor UV barrier performance of the electrochromic film will directly limit the application of the electrochromic film

Method used

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  • Electrochromic coating capable of effectively blocking ultraviolet rays, electrochromic film and preparation method thereof
  • Electrochromic coating capable of effectively blocking ultraviolet rays, electrochromic film and preparation method thereof
  • Electrochromic coating capable of effectively blocking ultraviolet rays, electrochromic film and preparation method thereof

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Embodiment Construction

[0038] The present application will be described in further detail below in conjunction with the examples.

[0039] All raw materials involved in this application are commercially available unless otherwise specified. Among them, the UV curable resin was purchased from Beijing Gerui Kechuang Technology Co., Ltd., and the product model was 07B. β-carboxyethyl acrylate (β-carboxy ethylacrylates, β-CEA), also known as β-acryloyloxypropionic acid. Epoxy acrylic resin was purchased from Guangdong Boxing New Material Technology Co., Ltd., the product model is B-151.

[0040] The effective ultraviolet blocking electrochromic coating of the present application includes the following components: 3,5,5-trimethylhexyl acrylate prepolymer, β-carboxyethyl acrylic monomer, nano-zinc oxide, graphene, optical Initiators, UV curable resins, hybrid liquid crystals and spacers.

[0041] In parts by weight, the 3,5,5-trimethylhexyl acrylate prepolymer can be 9-23 parts, or 11-19 parts, or 14.6...

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Abstract

The invention relates to the technical field of dimming films, and particularly discloses an electrochromic coating capable of effectively blocking ultraviolet rays, an electrochromic film and a preparation method thereof. The electrochromic coating is prepared from a 3, 5, 5-trimethylhexyl acrylate prepolymer, beta-carboxyethyl acrylate, a photoinitiator, UV curing resin, mixed liquid crystal, a spacer, nano zinc oxide and graphene. The preparation method comprises the following steps: S1, preparing a 3, 5, 5-trimethylhexyl acrylate prepolymer for later use; s2, adding nano zinc oxide and graphene; s3, adding the photoinitiator after heating; s4, adding beta-carboxyethyl acrylate, UV curing resin, mixed liquid crystal and spacers, stirring and then uniformly dispersing; using the electrochromic coating used for preparing the electrochromic film. The electrochromic film has the advantages of effectively blocking ultraviolet rays and resisting high temperature.

Description

technical field [0001] The application relates to the technical field of dimming films, more specifically, it relates to an electrochromic coating for effectively blocking ultraviolet rays, an electrochromic film and a preparation method thereof. Background technique [0002] The electrochromic film means that the transmittance of the electrochromic film will change when it is energized and not energized, and it will change reversibly between light transmission and light opacity. The current electrochromic film mostly uses liquid crystal as the raw material, and its main principle is that the liquid crystal molecules are disorderly arranged when no power is applied, making the electrochromic film opaque; when the power is applied, under the action of the electric field, The liquid crystal molecules are arranged in an orderly manner, and when light is irradiated on the electrochromic film, it can pass through the electrochromic film, showing that the electrochromic film is li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/61G02F1/1333
CPCC09D4/06C09D5/18C09D7/61C09D7/67C09D7/68G02F1/1333
Inventor 王建平咸才军
Owner ECO BAO
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