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Electrochromic solution capable of being gelatinized and self-repaired under illumination, and application thereof

An electrochromic and gelling technology, which is applied in the fields of color-changing fluorescent materials, optics, nonlinear optics, etc., can solve the problems of hard to repair gel cracks, increase the complexity of the process, and limit the gelling ability of solutions, and achieve extended Service life, effect of inhibiting phase separation or deposition

Active Publication Date: 2018-07-06
NINGBO MI RUO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its concentration is high (optimum concentration is 7~15% (w / w)), it has limited gelling ability to the solution due to no cross-linking; and in terms of processing, it is first on the conductive layer of the glass substrate The polyacrylic film is prepared by solvent volatilization, which increases the complexity of the process
US Patent US8928966 adds a cross-linked polymer electrolyte with creep resistance to the electrochromic solution, but the polymer electrolyte can conduct electricity, which will have a certain impact on the performance of the electrochromic device
Chinese patent CN201410165629.1 introduces an acrylic acid derivative that can be cross-linked by ultraviolet light into the electrochromic solution, and the gel formed has good stability, simple process, and can inhibit the outflow of the solution after the electrochromic device is broken. Gel fractures due to impact are difficult to repair

Method used

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  • Electrochromic solution capable of being gelatinized and self-repaired under illumination, and application thereof
  • Electrochromic solution capable of being gelatinized and self-repaired under illumination, and application thereof
  • Electrochromic solution capable of being gelatinized and self-repaired under illumination, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Use cinnamoyl chloride and excess butanediol as raw materials, pyridine as hydrochloric acid absorbent, react at room temperature for 2 hours (the reaction formula is shown in the following formula), add ethyl acetate after the reaction, and then wash with water for 3 times, and the organic phase is passed through The solvent was distilled off under reduced pressure to obtain the compound represented by structural formula 1.

[0058]

[0059] The compound represented by structural formula 1 is mixed with 4,4',4''-triphenylmethane triisocyanate, hexamethylene diisocyanate, butanediol, trace organotin catalyst dibutyltin dilaurate, 1,1'- Dineopentyl-4,4'-bipyridine bis(hexafluoroborate) and 5,10-diisopropyl-5,10-dimethylphenazine were dissolved in propylene carbonate to form an electrogenic Color-changing solution (the concentration of the compound represented by structural formula 1 is 10 mmol / L; the concentration of 4,4',4''-triphenylmethane triisocyanate is 20 mmol / ...

Embodiment 2

[0062] Using the atom transfer radical polymerization method, the coumarin-type styrene shown in the structural formula 2 (the compound shown in the structural formula 2) and methoxyethyl acrylate (the molar ratio is 1:4) are polymerized monomers, and the 2- Ethyl bromopropionate was used as an initiator, and CuCl / Me10TATD was used as a catalyst to react in a dioxane solvent at 60°C for 24 hours to obtain a polymer represented by structural formula 3.

[0063]

[0064] The polymer represented by structural formula 3, 1,1'-dihexyl-4,4'-bipyridine bis(trifluoromethanesulfonate) and 5,10-dihydro-5,10-dimethylphenazine Dissolve in butyrolactone to form an electrochromic solution (the concentration of the compound shown in structural formula 3 is 5% (w / v); 1,1'-dihexyl-4,4'-bipyridine bis(trifluoro mesylate) at a concentration of 50 mmol / L; 5,10-dihydro-5,10-dimethylphenazine at a concentration of 50 mmol / L;), perfused in such as figure 1 In the shown electrochromic device, the...

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Abstract

The invention relates to an electrochromic solution. The electrochromic solution includes a solvent, an anode electroactive material, a cathodic electroactive material, and a polymer comprising aryl acrylate and / or aryl acrylate lactone. The invention also relates to an electrochromic device containing the electrochromic solution. The electrochromic solution can be gelatinized and self-repaired under natural sunlight without affecting the electrochromic properties of the electrochromic solution.

Description

technical field [0001] The invention relates to the field of electrochromism, and more particularly relates to an electrochromic solution capable of gelling and self-repairing under light. Background technique [0002] Electrochromism is an electric-driven color-changing technology, which is a process in which a material changes its color by gaining and losing electrons under the action of an applied voltage. It has great application value in electrochromic windows, automobile rearview mirrors, electrochromic glasses, high-resolution photoelectric camera equipment, photoelectric chemical energy conversion / storage, military camouflage and decorative materials, etc. [0003] The basic structure of an electrochromic device is like a sandwich, with an electrochromic medium placed between two substrates coated with conductive materials. Electrochromic devices can be divided into three categories according to the physical state of the electrochromic medium. One is solution-type e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K9/00C08J3/28C08F212/32C08F220/28C08G18/32C08G18/28G02F1/15
CPCC08F220/28C08F220/281C08G18/284C08G18/3206C08J3/28C08J2333/14C09K9/00G02F1/15G02F1/15165C08F212/32
Inventor 曹贞虎胡珊珊
Owner NINGBO MI RUO ELECTRONICS TECH CO LTD
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