Black-display multilayer polymer film, preparation method therefor and application of black-display multilayer polymer film

A polymer film, polymerization method technology, applied in the production of bulk chemicals, etc., can solve the problems of poor electrochromic performance, slow response speed, low optical contrast, etc., achieve fast response time, high optical contrast, excellent electrochromic The effect of color changing properties

Inactive Publication Date: 2019-12-13
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation of this material is relatively simple, but the electrochromic performance of the prepared material is poor, mainly manifested in low optical contrast and slow response speed.

Method used

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  • Black-display multilayer polymer film, preparation method therefor and application of black-display multilayer polymer film
  • Black-display multilayer polymer film, preparation method therefor and application of black-display multilayer polymer film
  • Black-display multilayer polymer film, preparation method therefor and application of black-display multilayer polymer film

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Embodiment 1

[0029] The molecular structure of the polymeric precursor used is as figure 1 shown. The prepared monomer solutions (I), (II), and (III) have a concentration of 1mg / ml, a supporting electrolyte of 0.1M tetrabutylammonium hexafluorophosphate, and an electrolytic solvent of a mixed solvent of dichloromethane and acetonitrile. The ratio is (3 / 2). Preparation of multi-layer polymer film: First, using cyclic voltammetry polymerization method, the polymerization conditions are: the voltage range is -0.6V ~ 1.1V, the scanning speed is 0.4mV / s, and the number of cycles is 8. In the monomer solution In (I), a red polymer film is electrodeposited; secondly, using the same polymerization method and conditions, in the monomer solution (II), continue to electrodeposit a green polymer film on its surface; finally, continue Using the same polymerization method and conditions, another layer of blue polymer film was electrodeposited in the monomer solution (Ⅲ). Wash the prepared multilayer ...

Embodiment 2

[0031] The molecular structure of the polymeric precursor used is as figure 1 shown. The prepared monomer solutions (I), (II), and (III) have a concentration of 1mg / ml, a supporting electrolyte of 0.1M tetrabutylammonium hexafluorophosphate, and an electrolytic solvent of a mixed solvent of dichloromethane and acetonitrile. The ratio is (3 / 2). Preparation of multi-layer polymer film: first, using cyclic voltammetry polymerization method, the polymerization conditions are: the voltage range is -0.6V ~ 1.1V, the scanning speed is 0.4mV / s, and the number of cycles is 8. In the monomer solution In (I), a layer of red polymer film is electrodeposited; secondly, using the same polymerization method and conditions, in the monomer solution (Ⅲ), continue to electrodeposit a layer of blue polymer film; finally, use the same According to the polymerization method and conditions, a green polymer film is electrodeposited in the monomer solution (II). Wash the prepared multilayer film wi...

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Abstract

The invention relates to a black-display multilayer polymer film. The film is prepared by the following methods: firstly, electrodepositing a layer of red polymer film in a monomer solution (I) by using an in-situ electrochemical polymerization method; secondly, continuing to electrodeposit a layer of green polymer film in a monomer solution (II) by using a cyclic volt-ampere polymerization method; and finally, electrodepositing a layer of blue polymer film in a monomer solution (III) by using the cyclic volt-ampere polymerization method, thereby finally obtaining the multilayer polymer film.The invention further provides a preparation method for the black-display multilayer polymer film and an application of the black-display multilayer polymer film. The method is simpler and more controllable, and compared with the existing materials, the prepared black-display polymer electrochromic material has the advantage that more excellent electrochromic performance is shown.

Description

technical field [0001] The invention relates to a multilayer polymer film with black display and a preparation method thereof. The film, as an electrochromic active material, can be used in smart windows, automobile rearview mirrors, plane displays and wearable devices. Background technique [0002] "Electrochromism" (Electrochromism, EC) refers to the phenomenon that a material exhibits a reversible change in macroscopic color due to redox reactions under the action of voltage. After decades of development, electrochromic materials are currently mainly divided into: inorganic electrochromic materials, organic electrochromic materials and inorganic-organic composite electrochromic materials. Compared with inorganic electrochromic materials, organic electrochromic materials, especially conductive polymer electrochromic materials, have higher optical contrast, wider color modulation range, faster response time and better processing performance. Therefore, it has attracted mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C08J5/18C08L65/00
CPCC08G61/126C08J5/18C08J2365/00Y02P20/54
Inventor 张诚闫拴马李维军付海长
Owner ZHEJIANG UNIV OF TECH
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