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Reflective dimming glass based on electric response and preparation method

A dimming glass, electrical response technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of easy damage to polymer networks, poor mechanical properties of thin films, short service life, etc., to achieve long service life, not easy to damage , the effect of strong practicability

Active Publication Date: 2022-01-11
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, the present invention provides a trans-type dimming glass based on electric response and its preparation method to solve the problem of poor mechanical properties of the film and easy destruction of the polymer network in the electronically controlled trans-type dimming glass in the prior art, which leads to practical Poor performance and short service life

Method used

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  • Reflective dimming glass based on electric response and preparation method
  • Reflective dimming glass based on electric response and preparation method
  • Reflective dimming glass based on electric response and preparation method

Examples

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Effect test

Embodiment 1

[0041] Prepare two transparent substrates 1 that are all coated with a layer of conductive ITO coating 2. The transparent substrate 1 is made of glass, and a flat orientation layer is coated on the surface of the conductive ITO coating 2 of the transparent substrate 1 respectively; The parallel alignment layers 3 of the transparent substrate 1 are arranged opposite to each other, and spacer particles that control the thickness of the interlayer space are mixed in the middle to make a liquid crystal 4 cell; take 20 parts by mass of a liquid crystal polymerizable monomer and 10 parts by mass of a non-liquid crystal polymerizable monomer , 2 parts by mass of photoinitiator, and 68 parts by mass of liquid crystal 4, after weighing, the mixture is heated to 70°C in a yellow light environment without ultraviolet light, so that the liquid crystal 4 is transformed into an isotropic state. At this temperature, inject the liquid crystal 4 mixed solution into the liquid crystal 4 box, and...

Embodiment 2

[0044] Prepare two transparent substrates 1 that are all coated with a layer of conductive ITO coating 2. The transparent substrate 1 is made of glass, and a flat orientation layer is coated on the surface of the conductive ITO coating 2 of the transparent substrate 1 respectively; The parallel alignment layers 3 of the transparent substrate 1 are oppositely arranged, and spacer particles controlling the thickness of the interlayer space are mixed in the middle to form a liquid crystal 4 cell; take 5 parts by mass of liquid crystal polymerizable monomers and 5 parts by mass of non-liquid crystal polymerizable monomers , 1 part by mass of photoinitiator, and 89 parts by mass of liquid crystal 4. After weighing, the mixture is heated to 70°C under a yellow light environment without ultraviolet light, so that the liquid crystal 4 is transformed into an isotropic state. At this temperature, inject the liquid crystal 4 mixed solution into the liquid crystal 4 cell, and keep it warm ...

Embodiment 3

[0047] Prepare two transparent substrates 1 that are all coated with a layer of conductive ITO coating 2. The transparent substrate 1 is made of glass, and a flat orientation layer is coated on the surface of the conductive ITO coating 2 of the transparent substrate 1 respectively; The parallel alignment layers 3 of the transparent substrate 1 are arranged opposite to each other, and spacer particles that control the thickness of the interlayer space are mixed in the middle to make a liquid crystal 4 cell; take 10 parts by mass of a liquid crystal polymerizable monomer and 10 parts by mass of a non-liquid crystal polymerizable monomer , 2 parts by mass of photoinitiator, and 78 parts by mass of liquid crystal 4. After weighing, the mixture is heated to 70°C in a yellow light environment without ultraviolet light, so that the liquid crystal 4 is transformed into an isotropic state. At this temperature, inject the liquid crystal 4 mixed solution into the liquid crystal 4 cell, an...

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Abstract

The invention relates to reflective dimming glass based on electrical response and a preparation method. The reflective dimming glass comprises two transparent substrates which are oppositely arranged. The opposite surfaces of the two transparent substrates are respectively coated with a conductive ITO coating, the surfaces of the conductive ITO coatings are coated with parallel orientation layers, an interlayer space is formed between the two transparent substrates and the parallel orientation layers, and the interlayer space is filled with polymer dispersed liquid crystals; the liquid crystals are dispersed in the formed polymer network; when an electric field is not applied to the interlayer space, the liquid crystal and the liquid crystal polymerizable monomer are in parallel orientation, so that the trans-dimming glass presents a uniform optical medium and is in a transparent state; when an electric field is applied to the interlayer space through the conductive ITO coating, the liquid crystal is oriented parallel to the direction of the electric field, so that the refractive indexes are not matched, and the reflective dimming glass is in a scattering state. The reflective dimming glass disclosed by the invention is good in mechanical property, high in practicability and relatively long in service life, and a polymer network is not easy to damage.

Description

technical field [0001] The invention relates to the field of dimming glass design, in particular to an electric response-based trans-tunable glass and a preparation method thereof. Background technique [0002] The surface of the existing car window glass is usually covered with a layer of solar film, which has a high blocking effect on visible light. Although it improves the privacy of the car, it also affects the visibility of the people inside There is a greater impact, resulting in some security risks. Once the solar film is pasted, its optical performance cannot be adjusted according to the preferences of the people in the car or the changes in the environment, and it is difficult to meet people's needs to change the light and dark environment in the car at any time. [0003] In view of the limitations of the above-mentioned filmed window glass, most of them use electronically controlled trans dimming glass to replace the traditional window glass. The trans-type dimmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334G02F1/1337G02F1/1339
CPCG02F1/1334G02F1/13345G02F1/133788G02F1/1339G02F1/13392
Inventor 曲悦任云霄杨槐
Owner PEKING UNIV
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