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Barrier film

A technology of barrier film and barrier layer, which is applied in the direction of coating, layered products, synthetic resin layered products, etc., can solve the problems of complicated process and high manufacturing cost of barrier film, and achieve zero volume shrinkage, low flammability, good The effect of water and oxygen resistance

Inactive Publication Date: 2020-07-03
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high manufacturing cost and complicated process of the current barrier film, the present invention provides a barrier film with simple preparation method and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A barrier film, comprising an upper base material layer, a lower base material layer, and a barrier layer located between the upper base material layer and the lower base material layer. The upper substrate layer and the lower substrate layer can be made of common substrate materials, usually polyethylene terephthalate (PET). The barrier layer is formed by hydrolysis of fluorine-containing benzoxazine silane (TFP-TMOS) in a mixed solvent for 20 minutes;

[0016] The mixed solvent is composed of 1,4-dioxane and deionized water, the volume ratio of 1,4-dioxane and deionized water is 1:1, and the addition amount of fluorine-containing benzoxazine silane 10% of the total mass of the barrier layer.

[0017] The barrier layer is coated on the surface of the lower substrate and cured at 150°C for 10-15 minutes, and then the upper substrate is attached to the surface of the barrier layer and cured at 150°C for 40-50 minutes to form a barrier film.

[0018] The thickness of th...

Embodiment 2

[0020] A barrier film, comprising an upper base material layer, a lower base material layer, and a barrier layer located between the upper base material layer and the lower base material layer. The upper substrate layer and the lower substrate layer can be made of common substrate materials, usually polyethylene terephthalate (PET). The barrier layer is formed by hydrolysis of fluorine-containing benzoxazine silane (TFP-TMOS) in a mixed solvent for 15 minutes;

[0021] The mixed solvent is composed of 1,4-dioxane and deionized water, the volume ratio of 1,4-dioxane and deionized water is 0.25:1, and the addition amount of fluorine-containing benzoxazine silane 12% of the total mass of the barrier layer.

[0022] The barrier layer is coated on the surface of the lower substrate and cured at 150°C for 10-15 minutes, and then the upper substrate is attached to the surface of the barrier layer and cured at 150°C for 40-50 minutes to form a barrier film.

[0023] The thickness of...

Embodiment 3

[0025] A barrier film, comprising an upper base material layer, a lower base material layer, and a barrier layer located between the upper base material layer and the lower base material layer. The upper substrate layer and the lower substrate layer can be made of common substrate materials, usually polyethylene terephthalate (PET). The barrier layer is formed by hydrolysis of fluorine-containing benzoxazine silane (TFP-TMOS) in a mixed solvent for 30 minutes;

[0026] The mixed solvent is composed of 1,4-dioxane and deionized water, the volume ratio of 1,4-dioxane and deionized water is 0.5:1, and the addition amount of fluorine-containing benzoxazine silane 15% of the total mass of the barrier layer.

[0027] The barrier layer is coated on the surface of the lower substrate and cured at 150°C for 10-15 minutes, and then the upper substrate is attached to the surface of the barrier layer and cured at 150°C for 40-50 minutes to form a barrier film.

[0028] The thickness of ...

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Abstract

A barrier film comprises an upper base material layer, a lower base material layer and a barrier layer located between the upper base material layer and the lower base material layer, and the barrierlayer is formed by hydrolyzing fluorine-containing benzoxazine silane in a mixed solvent for 15-30 min; and the mixed solvent is composed of 1,4-dioxane and deionized water, the volume ratio of the 1,4-dioxane to the deionized water is (0.25-9):1, and the addition amount of the fluorine-containing benzoxazine silane is 5-15% of the total mass of the barrier layer. The barrier film has the following beneficial effects: only a very thin layer of polybenzoxazine is needed to play a very good barrier role, and the stiffness of the film layer is relatively high.

Description

technical field [0001] The present invention relates to a barrier film. Background technique [0002] At present, wide color gamut display technology is mainly divided into OLED technology and quantum dot liquid crystal display technology. Both OLED and quantum dot are sensitive to water and oxygen in the environment. Therefore, the barrier film is used as a protective film in wide color gamut display. Widely used in equipment. [0003] At present, the barrier film mainly adopts the method of vacuum coating, which uses high voltage to bombard inorganic particles into particles and then deposits them on the surface of the substrate. This preparation process is complex and costly. Contents of the invention [0004] In order to solve the problems of high production cost and complicated process of the current barrier film, the present invention provides a barrier film with a simple preparation method and low cost. [0005] The technical solution for solving the technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/36B32B33/00C09D179/04
CPCB32B27/08B32B27/36B32B33/00B32B2250/244B32B2255/10B32B2255/24B32B2307/7246C09D179/04
Inventor 罗培栋王群
Owner NINGBO DXC NEW MATERIAL TECH
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