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Photochromic film as well as preparation method and application thereof

A photochromic film and photochromic dye technology, applied in optics, optical components, optical components, etc., can solve problems such as inability to convert colors, attract dye particles to each other, and lose color conversion capabilities, so as to achieve product profit improvement and production efficiency. High efficiency, excellent anti-blue light performance and the effect of photochromic function

Active Publication Date: 2020-06-26
乐凯光电材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the compression of photochromic dye particles in the coating, it is easy to cause the dye particles after discoloration to attract each other, so that color conversion cannot be performed quickly, and some photochromic dye particles lose their color conversion ability.

Method used

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  • Photochromic film as well as preparation method and application thereof
  • Photochromic film as well as preparation method and application thereof
  • Photochromic film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0028] As a preferred embodiment, the photochromic film includes the following components in parts by mass:

[0029] 50-70 parts of cellulose acetate; 8-10 parts of plasticizer; 2-4 parts of antioxidant; 2-3 parts of activator; 0.1-0.4 parts of heat-shrinkable additive; 0.8-1.0 parts of color-changing dye; 500-700 parts of solvent.

[0030] As a more preferred embodiment, the photochromic film includes the following components in parts by mass:

[0031] 50-70 parts of cellulose acetate; 8-10 parts of plasticizer; 2.5-3 parts of antioxidant; 2.5-3 parts of activator; 0.1-0.32 parts of heat-shrinkable additive; 0.8-1.0 parts of color-changing dye; 500-700 parts of solvent.

[0032] Preferably, the photochromic film includes the following components in parts by mass:

[0033] 60 parts of cellulose acetate; 8 parts of plasticizer; 2.5 parts of antioxidant; 3 parts of activator;

[0034] antioxidant

[0035] As an embodiment, the antioxidant includes hindered phenol antioxid...

Embodiment 1

[0099] A photochromic film comprising the following components:

[0100] 60g of cellulose acetate; 6g of plasticizer; 3g of antioxidant; 1g of activator; 0.1g of heat-shrinkable additive;

[0101] The cellulose acetate is cellulose triacetate.

[0102] The plasticizer is dibutyl sebacate.

[0103] The antioxidant is antioxidant 1010.

[0104] The activator is glyceryl stearate.

[0105] The heat-shrinkable additive is Bi-Ni oxide containing La, La 2 Ni 2 o 5 .

[0106] The backlight integration agent is an azobenzene-containing mesoporous mica compound, N-ethyl-N-(2-chloroethyl)aniline.

[0107] The photochromic dye is 1-(2-hydroxyethyl)-3,3-dimethylindoline-6'-nitrobenzospiropyran, and the CAS number is 16111-07-2.

[0108] The solvent includes a first solvent, a second solvent and a third solvent. The mass ratio of the first solvent, the second solvent and the third solvent is 2:1:1.

[0109] The first solvent, the second solvent and the third solvent are all mixed s...

Embodiment 2

[0116] A photochromic film comprising the following components:

[0117] 60g of cellulose acetate; 8g of plasticizer; 2.5g of antioxidant; 3g of activator; 0.32g of heat-shrinkable additive;

[0118] The cellulose acetate is cellulose triacetate.

[0119] The plasticizer is benzene polyester W-23-S.

[0120] The antioxidant is antioxidant 1010.

[0121] The activator is glycerol triacetate.

[0122] Described heat-shrinkable additive is with embodiment 1.

[0123] The backlight integration agent is the same as in Example 1.

[0124] Described photochromic dye is with embodiment 1.

[0125] The solvent includes a first solvent, a second solvent and a third solvent. The mass ratio of the first solvent, the second solvent and the third solvent is 2:1:1.

[0126] The first solvent, the second solvent and the third solvent are all mixed solvents of dichloromethane and methanol, and the mass ratio of the dichloromethane to methanol is 95:5.

[0127] The preparation method of...

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Abstract

The invention belongs to the technical field of photochromic films, and particularly relates to a photochromic film as well as a preparation method and application thereof. The photochromic film comprises the following components in parts by mass: 50-80 parts of cellulose acetate; 6-10 parts of a plasticizer; 1-5 parts of an antioxidant; 1-5 parts of an activator; 0.1 to 0.5 part of a thermal shrinkage additive; 0.1 to 0.5 part of a backlight integrating agent; 0.5 to 1.0 part of a photochromic dye; 500-700 parts of solvent. According to the photochromic film disclosed by the invention, the activating agent, the thermal shrinkage additive and the backlight integrating agent are compounded; the prepared photochromic film is compared with a photochromic film which reaches the same technicallevel and is not added with the substances; the thickness of the film is reduced, the addition amount of photochromic dyes is reduced by 10%, the photoresponse rate of the film is remarkably increased, the fading rate is obviously increased, compared with the same type of products with the same color change depth, the cost is reduced, and the product profit is greatly increased.

Description

technical field [0001] The application belongs to the technical field of photochromic films, and in particular relates to a photochromic film and its preparation method and application. Background technique [0002] Cellulose acetate films are widely used as supports and protective films for polarizers due to their excellent optical and physical properties. In recent years, driven by new media and online sales, high-end fashion polarized glasses have developed rapidly. A kind of photochromic glasses that can absorb 400-450nm high-energy blue light energy to stimulate the internal photochromic dye particle structure transformation, thereby deepening the color of polarized glasses lenses and blocking visible light, has been highly praised by the market, and the demand for products has increased rapidly. In addition, with the improvement of people's material living standards, the rise of outdoor sports has spawned a large number of outdoor sports display instruments, which are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/12C08K13/02C08K5/134C08K5/103C08K3/22C08K5/18C08K5/3417C08J5/18G02B5/23G02B5/30G02C7/10G02C7/12G02F1/1335
CPCC08J5/18G02B5/30G02B5/23G02C7/102G02C7/12G02F1/133509G02F1/133528C08K13/02C08K5/1345C08K5/103C08K2003/2293C08K5/18C08K5/3417
Inventor 屈子健吴永平杜彦飞包继甜
Owner 乐凯光电材料有限公司
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