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Manufacture method of flexible electrochromic thin films and flexible electrochromic thin films thereof

A thin film preparation and color changing technology, applied in the field of optical materials, can solve problems such as difficulty in realizing large-scale continuous production and large-area operation, complex production process, etc., and achieve the effects of easy large-scale continuous production, simple process and low cost.

Inactive Publication Date: 2007-08-15
广州英诺维升新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned PDLC film is limited by the glass specification and size. In order to control the thickness of the dispersed liquid crystal layer, it is usually necessary to add glass beads of corresponding size to the PDLC. The production process is complicated, and it is difficult to achieve large-scale continuous production and large-area operation.

Method used

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  • Manufacture method of flexible electrochromic thin films and flexible electrochromic thin films thereof
  • Manufacture method of flexible electrochromic thin films and flexible electrochromic thin films thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In a three-neck flask equipped with a condenser tube and a thermometer, add 20g of butyl methacrylate prepolymer, 77g of acetylene bridge liquid crystal and 3g of 1-hydroxycyclohexane phenyl ketone, and stir at 80°C for 30min to make the solution clarify.

[0032] Pour the above clarified solution into the coating roller, coat it on the surface of a polyester conductive film (20Ω / □) with a size of 10cm×10cm, control the speed of the roller to make the thickness of the solution layer 10μm, and then paste another layer through the roller For polyester conductive films of the same size, wires are drawn out from two layers of polyester conductive film layers through conductive graphite glue, and cured under ultraviolet light at 365nm for 2s to obtain a flexible electrochromic film.

Embodiment 2

[0034] In a three-neck flask equipped with a condenser tube and a thermometer, add 40g of butyl methacrylate prepolymer, 58g of acetylene bridge liquid crystal and 2g of 1-hydroxycyclohexane phenyl ketone, and stir at 80°C for 1h to make the solution clarify.

[0035] Pour the above clarified solution into a roller, coat it on the surface of a PI conductive film (100Ω / □) with a size of 20cm×20cm, control the speed of the roller to make the solution layer thickness 50μm, and then paste another layer of the same size through the roller PI conductive film, lead wires on the two layers of PI conductive film through conductive gold glue, and cure it under ultraviolet light at 365nm for 3s to obtain a flexible electrochromic film.

Embodiment 3

[0037] In a three-neck flask equipped with a condenser tube and a thermometer, add 8g of butyl methacrylate prepolymer, 90g of acetylene bridge liquid crystal and 2g of 1-hydroxycyclohexane phenyl ketone, and heat at 80°C under magnetic stirring 1.5h to clear the solution.

[0038] Pour the above clarified solution into a roller, coat it on the surface of a polyester conductive film (80Ω / □) with a size of 50cm×50cm, control the rotation speed of the roller to make the thickness of the solution layer 40μm, and then paste another layer of the same size through the roller The polyester conductive film is used, and the conductive silver glue is used to lead the wires on the two layers of the polyester conductive film for standby, and the ultraviolet light is cured at 365nm for 5s, and the flexible electrochromic film is obtained.

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Abstract

This invention relates to one flexible electrical variable change film process method and the film in the optical materials technique, which comprises the following steps: adopting roller coating method for one layer of the allyl propionate pre-polymer part on film surface and mixture solution to row phase liquid crystal and light triggered agent; then through roller adding other layer of conductive electrical film through ultraviolet light fixing to form flexible polymer disperse LCD film.

Description

technical field [0001] The invention belongs to the technical field of optical materials, and in particular relates to a method for preparing a flexible electrochromic film and a flexible electrochromic film prepared by the method. technical background [0002] Polymer-dispersed liquid crystal (polymer-dispersed liquid crystal, PDLC) film is a film formed by uniformly dispersing tiny nematic liquid crystal droplets in a polymer matrix. Generally, the polymer prepolymer, liquid crystal molecules and photoinitiator are injected into the liquid crystal cell formed by two pieces of conductive glass, and the polymer dispersed liquid crystal film is formed after photocuring. Usually, the film thickness obtained by controlling the distance between two conductive glasses is tens of microns, and the liquid crystal droplet size is about several microns. The orientation of the liquid crystal molecules in each droplet is distributed along the bipolar axis, and the refractive index alon...

Claims

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Application Information

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IPC IPC(8): G02F1/15B32B27/06B32B9/00C08J5/24
Inventor 彭波韦玮林群方发成高潮
Owner 广州英诺维升新材料有限公司
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