Polymer dispersed liquid crystal dimming film and preparation method thereof

A technology of dispersing liquid crystal and dimming film, applied in optics, nonlinear optics, instruments, etc., can solve the problems of high driving voltage and low transparency of polymer dispersed liquid crystal dimming film, and achieve clear and outstanding projection imaging effect and high transparency. , a wide range of effects

Inactive Publication Date: 2019-03-01
王浪伟
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a polymer dispersed liquid crystal dimming film

Method used

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  • Polymer dispersed liquid crystal dimming film and preparation method thereof
  • Polymer dispersed liquid crystal dimming film and preparation method thereof
  • Polymer dispersed liquid crystal dimming film and preparation method thereof

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Embodiment Construction

[0043] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.

[0044] A polymer dispersed liquid crystal dimming film, the raw material of the polymer dispersed liquid crystal dimming film is composed of the following parts by weight: monomer hydroxypropyl methacrylate 25-30 parts, epoxy resin 38-45 parts, o-phthalic acid 22-28 parts of phenyl phenoxyethyl acrylate, 4-6 parts of lauryl methacrylate, 4-6 parts of photoinitiator, 4-6 parts of light stabilizer, 140-180 parts of liquid crystal, 1.8-2.2 parts of nanoparticles .

[0045] Wherein the structural formula of hydroxypropyl methacrylate is as follows:

[0046]

[0047] The structural formula of o-phenylphenoxyethyl acrylate is as follows:

[0048]

[0049] The structural formula of lauryl methacrylate is as follows:

[0050]

[0051] Photoinit...

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Abstract

The invention relates to a polymer dispersed liquid crystal dimming film and a preparation method thereof. The dimming film is prepared from, by weight, 25-30 parts of monomer hydroxypropyl methacrylate, 38-45 parts of epoxy resin, 22-28 parts of o-phenyl phenoxyethyl acrylate, 4-6 parts of lauryl methacrylate, 4-6 parts of a photoinitiator, 4-6 parts of a light stabilizer, 140-180 parts of liquidcrystals and 1.8-2.2 parts of nano particles. The preparation method comprises the steps that monomer hydroxypropyl methacrylate, epoxy resin, o-phenyl phenoxyethyl acrylate and lauryl methacrylate are added to a mixing container to be mixed and stirred, then the liquid crystals are added, then the materials are mixed, then the photoinitiator, the light stabilizer and the nano particles are addedto be stirred, after the raw materials are obtained, coating and pressing fit are carried out, and the polymer dispersed liquid crystal dimming film is obtained after curing is carried out. When theprepared polymer dispersed liquid crystal dimming film is used, the switching response between a scattering state and a transparent state is fast, the driving voltage is low, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of polymer-dispersed liquid crystal and its preparation, in particular to a polymer-dispersed liquid crystal dimming film and a preparation method thereof. Background technique [0002] Polymer-dispersed liquid crystal is to mix low-molecular liquid crystal with prepolymer, and undergo polymerization reaction under certain conditions to form micron-sized liquid crystal droplets uniformly dispersed in the polymer network, and then use the dielectric anisotropy of liquid crystal molecules A material with electro-optic response characteristics is obtained, which mainly works between the scattering state and the transparent state and has a certain gray scale. Polymer liquid crystal film is a film material with excellent comprehensive performance obtained by combining liquid crystal and polymer. Liquid crystal molecules endow polymer liquid crystal films with remarkable electro-optic properties, which have attra...

Claims

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Application Information

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IPC IPC(8): G02F1/1334G02F1/133G02F1/1333
CPCG02F1/13306G02F1/1333G02F1/1334
Inventor 王浪伟刘文龙李林
Owner 王浪伟
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