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Intelligent light modulation film manufacturing technique

A production process, intelligent dimming technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of large area and high cost, and achieve the effect of low cost, simple manufacturing and good electro-optical characteristics

Inactive Publication Date: 2013-02-06
ZHEJIANG XIXI GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the equipment of the electron radiation method occupies a large area and costs a lot, which is not as good as the ultraviolet radiation method.

Method used

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  • Intelligent light modulation film manufacturing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A production process of an intelligent dimming film, comprising the following steps:

[0027] 1) In a shading environment, use butyl methacrylate (C 8 H 14 O 2 ) as a monomer, cholesteryl pelargonate (C 36 H 62 O 2 ) as a liquid crystal, prepared into a polymer-dispersed liquid crystal in a mass ratio of 1:1;

[0028] 2) Heat the polymer-dispersed liquid crystal to 20℃~30℃, stir evenly, about 15 minutes;

[0029] 3) The polymer-dispersed liquid crystal is shaded and allowed to stand until it is transparent and uniform, which will take about 30 minutes;

[0030] 4) as figure 1 As shown, in a dust-free environment with a cleanliness level of more than 100,000, the polymer dispersed liquid crystal is added into the hopper 1, and the discharge port of the hopper 1 is located between the ITO surfaces of the two layers of ITO plastic films 2;

[0031] 5) Open the valve of the hopper 1, so that the polymer dispersed liquid crystal enters the pressing roller 3 together ...

Embodiment 2

[0036] A production process of an intelligent dimming film, the difference from Example 1 is that the mass ratio of polymer dispersed liquid crystal in step 1) is butyl methacrylate (C 8 H 14 O 2 ): Cholesteryl pelargonate (C 36 H 62 O 2 )=7:3; in step 6), the radiation intensity in the ultraviolet region is 25 watts / square centimeter, and the advancing speed of the ITO plastic film through the ultraviolet region is 4 m / min; the others are the same as in Example 1.

Embodiment 3

[0038] A production process of an intelligent dimming film, the difference from Example 1 is that the mass ratio of polymer dispersed liquid crystal in step 1) is butyl methacrylate (C 8 H 14 O 2 ): Cholesteryl pelargonate (C 36 H 62 O 2 )=3:7; in step 6), the radiation intensity in the ultraviolet light region is 15 watts / square centimeter, and the advancing speed of the ITO plastic film through the ultraviolet light region is 6 m / min;

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Abstract

The invention discloses a production process used for an intelligent light-adjusting film; a better liquid crystal formula is selected; the adopted polymerizing phase splitting is not direct monomer polymerizing but a monomer pre-polymerizing as well as further ultraviolet solidification polymerizing; the coating type adopts a production method of pressing coating by a pressing roller; the polymer diffusion liquid crystal is arranged between two layers of ITO and drawn to move ahead after being pressed; subsequently, the polymer diffusion liquid crystal is subjected to radiation and solidification by entering ultraviolet region so as to obtain the intelligent light-adjusting film. The technical proposal of the invention can ensure the intelligent light-adjusting film to have good photoelectric characteristic, and has simple manufacture and low cost; and the quality of the intelligent light adjusting film can be ensured.

Description

technical field [0001] The invention belongs to the field of liquid crystal product processing and manufacturing, and in particular relates to a preparation method of an intelligent dimming film. Background technique [0002] PDLC is a two-phase system of liquid crystal and polymer. It disperses small molecule liquid crystal (LC) in a transparent polymer matrix by a certain method to form liquid crystal droplets of micrometer size or nanometer size, while the polymer is liquid crystal Microdroplets provide a stable network structure, and their application properties strongly depend on the composition, morphology, size, properties toward the interface, particle size distribution, and matching of the properties of the two phases. Due to the strong optical anisotropy and dielectric anisotropy of liquid crystal molecules, this material has remarkable electro-optic properties. The indicators to measure its electro-optic performance are: driving voltage, response time, transmitta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1334G02F1/1333
Inventor 赵兴勇邵珠彬
Owner ZHEJIANG XIXI GLASS