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Composition, film, preparation method and detection method for ultraviolet light intensity detection

A technology of intensity detection and ultraviolet light, applied in the field of optical detection, can solve problems such as limited area and complicated detection process

Active Publication Date: 2018-03-09
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited area of ​​the selenium photocell, the UV illuminance meter can only measure a small area of ​​ultraviolet light when measuring the intensity of ultraviolet light. For a large area of ​​ultraviolet light, repeated detection is required, resulting in a more complicated detection process.

Method used

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  • Composition, film, preparation method and detection method for ultraviolet light intensity detection
  • Composition, film, preparation method and detection method for ultraviolet light intensity detection
  • Composition, film, preparation method and detection method for ultraviolet light intensity detection

Examples

Experimental program
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Effect test

preparation example Construction

[0067] see image 3 , the present invention also provides a method for preparing a thin film to prepare and provide the above-mentioned thin film; the preparation method includes:

[0068] In the first step, the photopolymerizable monomer, the photoinitiator, the cholesteric liquid crystal, the azobenzene-based monomer, the nematic mixed crystal and the chiral additive are mixed to form a mixed system;

[0069] In the second step, the mixed system is spread to form a prefabricated film layer of the mixed system, and the prefabricated film layer of the mixed system is irradiated with light, so that the photoinitiator in the mixed system initiates the polymerization of the photopolymerizable monomers to obtain a UV Thin films for light intensity detection.

[0070] Compared with the prior art, the preparation method of the film provided by the present invention has the same beneficial effect as the composition provided, and will not be repeated here.

[0071] It is worth notin...

Embodiment 1

[0086] The composition for ultraviolet light intensity detection provided in this example includes nematic mixed crystals, chiral additives, azobenzene-based monomers, photopolymerizable monomers and benzoin dimethyl ether; nematic mixed crystals The mass ratio of , chiral additive, azobenzene monomer, photopolymerizable monomer and benzoin dimethyl ether is 71.3:8:5:15.2:0.5.

[0087] Nematic mixed crystal is SLC-1717, manufacturer: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.

[0088] Chiral additives are:

[0089]

[0090] Azobenzene monomers are:

[0091]

[0092] The photopolymerizable monomers are:

[0093]

[0094] see image 3 , this embodiment also provides a film for ultraviolet light intensity detection, the film includes the composition for ultraviolet light intensity detection, and its preparation method is as follows:

[0095] In the first step, according to the mass ratio of 71.3:8:5:15.2:0.5, nematic mixed crystals, chiral additives, a...

Embodiment 2

[0099] The composition for ultraviolet light intensity detection provided in this embodiment includes nematic mixed crystals, chiral additives, cholesteric liquid crystals, azobenzene-based monomers, photopolymerizable monomers and photoinitiators; nematic The mass ratio of mixed crystal, chiral additive, cholesteric liquid crystal, azobenzene monomer, photopolymer monomer and benzoin ether is 26:19:20:11:22:2.

[0100] Nematic mixed crystal is MAT 09-1284, manufacturer: Merck, Germany.

[0101] Chiral additives include the following two chiral additives with a mass ratio of 1:1:

[0102]

[0103] The cholesteric liquid crystal is:

[0104]

[0105] Azobenzene monomers are:

[0106]

[0107] The photopolymerizable monomers are:

[0108]

[0109] see image 3 , this embodiment also provides a film for ultraviolet light intensity detection, the film is a network structure, which includes the composition for ultraviolet light intensity detection, and its preparati...

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Abstract

The invention discloses a composition, a film, a preparation method and a detection method for ultraviolet light intensity detection, relate to the technical field of optical detection, and reduce the complexity of the detection process while realizing large-area ultraviolet light intensity detection. The composition includes nematic mixed crystals, chiral additives, cholesteric liquid crystals, azobenzene monomers, photopolymerizable monomers and photoinitiators; the film includes the composition mentioned in the above technical scheme, prepared At the same time, each component in the composition is uniformly mixed and spread to form a prefabricated film layer of the mixed system, and is irradiated with ultraviolet light to obtain a film. The composition provided by the invention is used for detecting the intensity of ultraviolet light.

Description

technical field [0001] The invention relates to the technical field of optical detection, in particular to a composition, a film, a preparation method and a detection method for ultraviolet light intensity detection. Background technique [0002] Ultraviolet illuminance meter is an instrument for measuring light intensity, also known as lux meter. [0003] The existing UV light meter is generally composed of a selenium photocell and a microammeter connected to the selenium photocell; during measurement, the photosensitive surface of the selenium photocell is placed under ultraviolet light, so that the selenium photocell generates a photo-generated current through the photoelectric effect, and passes the microammeter. Measure the photogenerated current, and since the scale on the microammeter is based on lux (Lx), after the microammeter measures the photogenerated current of the selenium photocell under the irradiation of ultraviolet light, the reading of the microammeter is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/48C09K19/50C09K19/54
CPCC09K19/50C09K19/542G01J1/48C09K19/2007C09K19/2021C09K2019/0437C09K2019/0448C09K2019/2078C08F2/48G01J1/429C09K19/36C09K19/586C09K2019/546G01J1/50C08F222/1025C08F222/1035C08F220/283G02F1/133711C08F2/50G01J1/0295
Inventor 王菲菲邵喜斌宋平李承珉张洪林赵合彬刘德强
Owner BOE TECH GRP CO LTD
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