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Double-bond polymer quantum dot film and preparation method thereof

A quantum dot film and polymer technology, applied in chemical instruments and methods, electronic equipment, other household appliances, etc., can solve the problems of quantum dot luminescence distortion, difficulty in barrier film, high cost, and reduce the range of edge failure, Strong practicability and the effect of improving the barrier capacity

Active Publication Date: 2019-04-30
四川东方绝缘材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to process the barrier film by this method, the yield is low, and the cost is very high
Simultaneously, this method can be in contact with air at the edge coating layer of quantum dot film interlayer, causes the quantum dot of quantum dot film to luminously distort or does not emit light (edge ​​failure), promptly at 85 ℃ of temperature, 85% humidity or 60 ℃ of temperature, 90% After 1000 hours of treatment under humidity conditions, the edge failure exceeds the width of 0.5mm

Method used

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  • Double-bond polymer quantum dot film and preparation method thereof
  • Double-bond polymer quantum dot film and preparation method thereof
  • Double-bond polymer quantum dot film and preparation method thereof

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Experimental program
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Embodiment 1～20

[0034] 1. Embodiments 1-20: a method for preparing a double-bond polymer quantum dot film, the steps are:

[0035] Step a: First blend 0.1-5 parts by mass of micron-scale light diffusing agent, 0-95 parts by mass of polyolefin resin and 0-95 parts by mass of vinylidene chloride-methyl acrylate copolymer (ie PVDC resin) A layer material, and then 0.02 to 2 mass parts of quantum dots and 0.1 to 10 mass parts of micron light diffusing agent and 80 to 99 mass parts of polyolefin resin are blended into B layer material; the A layer material and B After the layer material is melted at 220°C to 280°C (temperature 1) in extruder 1 and 220°C to 280°C (temperature 2) in extruder 2, it is heated through 220°C to 280°C (temperature 3) ) under the three-layer co-extrusion die mouth extrusion, drool on the cold drum at 60 ~ 100 ℃ (temperature 4) to make an ABA structure film with a thickness of A layer of 10 ~ 200 μm and a thickness of B layer of 18 ~ 300 μm or in Cast sheet on cold drum a...

Embodiment 21

[0057] A double-bond polymer quantum dot film, the double-bond polymer quantum dot film is made of A-layer material and B-layer material through three-layer co-extrusion salivation or biaxial stretching, the thickness of A layer is 10 μm, and the thickness of B layer A quantum dot primary base film with a 300 μm ABA three-layer film structure, and then fluorinated on both surfaces of the quantum dot primary base film to prepare a quantum dot secondary base film with an ABA three-layer film structure, and then in Double-bond polymer quantum dot film prepared by coating thermosetting resin on both surfaces of the quantum dot secondary base film and forming a coating with a drying thickness of 1 μm;

[0058] The A-layer material is a mixture of 0.1 parts by mass of micron-scale light diffusing agent and 95 parts by mass of vinylidene chloride-methyl acrylate copolymer (PVDC resin for short);

[0059] The B layer material is composed of 0.02 parts by mass of quantum dots, 0.1 part...

Embodiment 22

[0063] A double-bond polymer quantum dot film, the double-bond polymer quantum dot film is made of A-layer material and B-layer material through three-layer co-extrusion salivation or biaxial stretching, and the thickness of A layer is 200 μm, and the thickness of B layer is A quantum dot primary base film with an ABA three-layer film structure of 18 μm, and then fluorinated on the double surface of the quantum dot primary base film to prepare a quantum dot secondary base film with an ABA three-layer film structure. Double-bond polymer quantum dot film prepared by coating thermosetting resin on both surfaces of the quantum dot secondary base film and forming a coating with a drying thickness of 10 μm;

[0064] The A-layer material is a mixture of 5 parts by mass of micron-scale light diffusing agent and 95 parts by mass of polyolefin resin;

[0065] The B layer material is composed of 2 parts by mass of quantum dots, 10 parts by mass of micron light diffusing agent and 99 part...

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Abstract

The invention discloses a double-bond polymer quantum dot film and a preparation method thereof. The preparation method of the double bond polymer quantum dot film comprises the following steps: a layer A material and a layer B material undergo three-layer co-extrusion casting or biaxial stretching to obtain a primary quantum dot base film having an ABA three-layer thin film structure, with the thickness of every layer A being 10-200 [mu]m and the thickness of the layer B being 18-300 [mu]m, two surfaces of the primary quantum dot base film are processed by a fluorination technique to obtaina secondary quantum dot base film having the ABA three-layer thin film structure, and two surfaces of the secondary quantum dot base film are coated with a thermosetting resin, and then are dried to form the double-bond polymer quantum dot film with a coating thickness of 1-10 [mu]m. The water vapor transmission rate of the film is 0.01-0.1 g / m<2>.24 h, the edge failure size is 0-0.2 mm after thefilm is treated at a temperature of 85 DEG C under a humidity of 85% or at a temperature of 60 DEG C under a humidity of 90% for 1000 h, and the film can be used in various display fields to enhance the luminous effect in order to make the color beautiful.

Description

technical field [0001] The invention belongs to an optical organic polymer composite film and its preparation, and relates to a double-bond polymer quantum dot film and a preparation method thereof. The double-bond polymer quantum dot film of the present invention is a double-bond polymer quantum dot film based on polyolefin resin and vinylidene chloride (abbreviated as VDC)-methyl acrylate (abbreviated as MA) copolymer (ie PVDC resin for short) film. Dot film, the double-bond polymer quantum dot film can be used in various display fields to increase the luminous effect and make the color more colorful. Background technique [0002] In recent years, liquid crystal displays have been widely popularized. In order to further improve its color gamut, quantum dot light-emitting technology can be used to achieve the goal. Because the quantum dots emit more pure light, after the red and green quantum dots are excited by blue light, the color gamut coverage can be increased to 110%...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L25/10C08L27/16C08L23/06C08L23/08C08K3/00C08K3/08C08K3/22C08K3/30C08K3/36C08J7/12C09D129/04C09D175/04C09D163/00C09D7/61B32B27/08B32B27/06B32B27/32B32B27/30B32B27/18B32B33/00
CPCC09D129/04C09D163/00C09D175/04C08J7/12C08L23/06C08L23/12C08L27/16C09D7/61B32B27/08B32B27/18B32B27/302B32B27/304B32B27/32B32B33/00C08J2327/16C08J2323/06C08J2323/12C08K2201/003C08K2201/011C08K2003/2241B32B2255/10B32B2255/26B32B2250/40B32B2307/7246B32B2457/202C08L23/0823C08L23/145C08L25/10C08K3/36C08K3/22C08K3/00C08K3/30C08K3/08C08K3/346
Inventor 舒维赵贵红马雅琳罗春明唐安斌李建学
Owner 四川东方绝缘材料股份有限公司
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