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A kind of light-transmitting barrier composite film and preparation method thereof

A composite film and adhesive technology, used in chemical instruments and methods, synthetic resin layered products, film/sheet adhesives, etc., can solve the complex light transmission process, unsatisfactory peel strength and filling performance, etc. problem, to achieve the effect of simple process, good sealing barrier effect and good water vapor barrier performance

Active Publication Date: 2022-04-01
ZHONGSHAN DONGYI HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: aiming at the defects of unsatisfactory water vapor barrier effect, peeling strength and filling performance and complicated light transmission process in the prior art, to provide a high-quality product with ideal barrier effect, peeling strength and filling performance and simple process. Light-transmitting barrier composite film and preparation method thereof

Method used

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  • A kind of light-transmitting barrier composite film and preparation method thereof
  • A kind of light-transmitting barrier composite film and preparation method thereof
  • A kind of light-transmitting barrier composite film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0059] As shown in Table 1, an optical-grade PET film with a thickness of 50 μm is used as the substrate layer (i.e. the first polymer layer 10), and a layer of silicon dioxide is deposited on the surface of the PET film by plasma-assisted vapor deposition. (SiO 2 ) inorganic layer, the thickness of the inorganic layer is 200nm (i.e. the first inorganic layer 12); adopt the same method to form the second inorganic layer of 200nm thickness on another optical grade PET film (the second macromolecular polymer layer 30) of 50 μm thickness Layer 32; on the first inorganic layer 12, a polyester adhesive with a thickness of 25 μm is coated as the first adhesive layer 20; after that, it is bonded with the second inorganic layer 32, and then coated with a thickness of 50 μm on the other side of the second PET film The acrylate adhesive is used as the second adhesive layer 40. The light transmittance of the optical grade PET film is 90%, the haze is 1.0, and the properties of the barri...

Embodiment 2

[0061] As in the composite barrier film provided in Example 1, the difference lies in that the thickness of the first polymer layer 10 is 25 μm, and the properties of the barrier film are shown in Table 2.

Embodiment 3

[0063] As in the composite barrier film provided in Example 1, the difference lies in that the thickness of the first polymer layer 10 is 150 μm, and the properties of the barrier film are shown in Table 2.

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Abstract

The invention is applied to the field of barrier films for blocking water vapor, and aims at the defects of unsatisfactory water vapor barrier effect and complicated process in the prior art, and provides a light-transmitting barrier composite film with good barrier effect and simple process and a preparation method thereof. The barrier composite film sequentially includes light-transmitting: the inorganically treated first high molecular polymer layer, the thickness of the first high molecular polymer layer is 25-150 μm; the first adhesive layer, the first high molecular polymer layer The thickness of an adhesive layer is 5-50 μm; the second high molecular polymer layer through inorganic treatment, the thickness of the second high molecular polymer layer is 25-150 μm; the second adhesive layer, the first The thickness of the second adhesive layer is 10-250 μm. Compared with the prior art, the light-transmitting barrier composite film provided by the present invention and its preparation method are simple in process, and the barrier performance of the barrier film is good, and the water vapor transmission rate of the barrier film is less than 10 ‑4 g / m 2 / day, and has good peel strength and filling properties.

Description

technical field [0001] The invention is applied to the field of barrier films that block water vapor and oxygen, and in particular relates to a light-transmitting barrier composite film and a preparation method thereof. Background technique [0002] With the demand for ultra-thin, flexible, and low power consumption of the display, and the lighting industry's demand for (mainly street lamps) low power consumption, full spectrum, no flicker, and low heat generation, organic light-emitting diodes (OLEDs) organically emit light As an emerging luminescent material, it can meet the above conditions for display and lighting. OLED is extremely sensitive to water vapor, and indium tin oxide used as circuit conduction is also extremely sensitive to water vapor and oxygen. Especially for active matrix organic light-emitting diodes (AMOLED), the conditions for achieving a service life of 10,000 hours are less than 10% for the water vapor barrier conditions of the substrate and cover m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B7/12C09J7/29C08J7/06C08J7/048C08J7/046C08L67/02
CPCC09J7/29C08J7/06C09J2467/006C09J2433/00C08J2367/02C08J2475/04C09J2301/16C09J2301/122
Inventor 陈建平徐海斌
Owner ZHONGSHAN DONGYI HIGH TECH MATERIAL