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Polymer dispersed liquid crystal shearing effect privacy glass and preparation method and application thereof

A technology for dispersing liquid crystals and shearing effects, which is applied in optics, nonlinear optics, instruments, etc., and can solve the problems that the shearing effects of polymer dispersed liquid crystals have not been extensively researched and developed.

Inactive Publication Date: 2010-04-14
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the research on strained liquid crystals has been paid attention to in the preparation of liquid crystal devices such as large phase retarders, but the application of the shear effect of polymer dispersed liquid crystals has not been extensively researched and developed. It is necessary to develop new methods for the shear effect of polymer dispersed liquid crystals. Application field

Method used

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  • Polymer dispersed liquid crystal shearing effect privacy glass and preparation method and application thereof
  • Polymer dispersed liquid crystal shearing effect privacy glass and preparation method and application thereof
  • Polymer dispersed liquid crystal shearing effect privacy glass and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The first step is to prepare polymer dispersed liquid crystal material

[0028] Prepare a prepolymer with 20% alkoxynonyl phenyl acrylate, 70% trimethylolpropane triacrylate, 5% chain transfer agent 2-mercaptoethanol and 5% photoinitiator 1173. The prepolymer and the nematic liquid crystal material are stirred and mixed uniformly in a mass ratio of 1:1 to prepare a polymer dispersed liquid crystal material;

[0029] The second step, coating polymer dispersed liquid crystal layer

[0030] The polymer-dispersed liquid crystal material formulated in the first step is coated onto a piece of ultra-flat thick glass that is not coated with a transparent conductive layer of a transparent conductive glass for plasma display with a thickness of 3mm to form a polymer-dispersed liquid crystal layer. The thickness of the polymer-dispersed liquid crystal layer is 10 μm, and the size of the ultra-flat-thick glass used is determined by actual needs;

[0031] The third step is to prep...

Embodiment 2

[0034] The first step is to prepare polymer dispersed liquid crystal material

[0035]Prepare a prepolymer with 20% alkoxynonyl phenyl acrylate, 70% trimethylolpropane triacrylate, 5% chain transfer agent 2-mercaptoethanol and 5% photoinitiator 1173. The prepolymer and the nematic liquid crystal material are stirred and mixed uniformly in a mass ratio of 1:2 to prepare a polymer dispersed liquid crystal material;

[0036] The second step, coating polymer dispersed liquid crystal layer

[0037] The polymer-dispersed liquid crystal material formulated in the first step is coated onto a piece of ultra-flat thick glass that is not coated with a transparent conductive layer of a transparent conductive glass for plasma display with a thickness of 5 mm to form a polymer-dispersed liquid crystal layer. The thickness of the polymer-dispersed liquid crystal layer is 15 μm, and the size of the ultra-flat-thick glass used is determined by actual needs;

[0038] The third step is to prep...

Embodiment 3

[0041] The first step is to prepare polymer dispersed liquid crystal material

[0042] With 20% alkoxy nonyl phenyl acrylate, 70% trimethylolpropane triacrylate, 5% chain transfer agent 3-mercapto propionate isooctyl ester and 5% photoinitiator 1173 to prepare pre Polymer, the prepolymer and the nematic liquid crystal material are stirred and mixed evenly in a mass ratio of 1:3, and at the same time, soft plastic microspheres, microfilaments or fine hair debris with a diameter of 10-20 μm are added, and the dosage is The planar area of ​​the prepared dimming glass product is calculated to be 2 , formulated as a polymer dispersed liquid crystal material;

[0043] The second step, coating polymer dispersed liquid crystal layer

[0044] Coat the polymer-dispersed liquid crystal material prepared in the first step on a piece of ultra-flat glass with a thickness of 8mm that is not coated with a transparent conductive layer of transparent conductive glass for plasma displays or liq...

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Abstract

The invention discloses polymer dispersed liquid crystal shearing effect privacy glass and a preparation method and application thereof and relates to privacy glass based on polymer dispersed liquid crystal. The privacy glass is formed by clamping one layer of polymer dispersed liquid crystal shearing effect film between two pieces of flat glass; the polymer dispersed liquid crystal shearing effect film is formed mainly by mixing prepolymer and nematic liquid crystal material according to the mass ratio of 1:1-3, the prepolymer comprises 20 percent of alkoxy nonylphenyl acrylic ester, 70 percent of trimethylolpropane triacrylate, 5 percent of chain transfer agent and 5 percent of light trigger 1173, and the flat glass is super flat heavy sheet glass which is the raw material of the unplated transparent conducting layer of the transparent conducting glass for a plasma panel display or a liquid crystal display, wherein the thickness is 3-8 mm. The privacy glass has the functions of turning-on and turning-off, is particularly applied as functional curtains in the building decoration industry, has very low production cost, is bistable for turning-on and turning-off and needs no electricity in use.

Description

technical field [0001] The technical solution of the present invention relates to polymer-dispersed liquid crystal-based switchable glass, specifically, polymer-dispersed liquid crystal shear effect switchable glass and its preparation method and application. Background technique [0002] Polymer dispersed liquid crystal (referred to as PDLC) film is a high-tech product invented in the 1980s. It has application value in many fields such as dimming glass, large-screen display, and holographic grating. It is still a topic of concern to researchers of liquid crystal devices. [0003] In the study of polymer dispersed liquid crystals, it was found that applying shear stress to the upper and lower substrates of polymer dispersed liquid crystal products or polymer network liquid crystal products prepared from glass substrates will cause light transmission, which is the shear effect of polymer dispersed liquid crystals ( Sheared Liquid Crystal), it is a kind of strained liquid crys...

Claims

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Application Information

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IPC IPC(8): G02F1/1334G02F1/1333
Inventor 范志新张志东解会杰魏向东宋新华王丹
Owner HEBEI UNIV OF TECH
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