Light-transmitting barrier composite film and preparation method thereof

A composite film, light transmittance technology, applied in the direction of film/sheet adhesive, coating, adhesive, etc., can solve the problems of unsatisfactory peel strength and filling performance, complex light transmission process, etc.

Active Publication Date: 2020-02-11
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 pro

Method used

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  • Light-transmitting barrier composite film and preparation method thereof
  • Light-transmitting barrier composite film and preparation method thereof
  • Light-transmitting barrier composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
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: Coating polyester adhesive with a thickness of 25 μm on the first inorganic layer 12 as the first adhesive layer 20; then bonding with the second inorganic layer 32, and then coating the other side of the second PET film with a thickness of 50 μm 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 barrier film are shown i...

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 belongs to the field of barrier films for blocking water vapor. Based on disadvantages of poor water vapor barrier effect and complex process in the prior art, the invention provides a light-transmitting barrier composite film with characteristics of good barrier effect and simple process and a preparation method thereof. The light-transmitting barrier composite film sequentially comprises a first macromolecule polymer layer, a first adhesive layer, a second macromolecule polymer layer and a second adhesive layer, wherein the first macromolecule polymer layer is subjected to inorganic treatment and has a thickness of 25-150 [mu]m, the first adhesive layer has a thickness of 5-50 [mu]m, the second macromolecule polymer layer is subjected to inorganic treatment and has a thickness of 25-150 [mu]m, and the second adhesive layer has a thickness of 10-250 [mu]m. Compared with the light-transmitting barrier composite film in the prior art, the light-transmitting barrier composite film is simple in preparation process and good in barrier performance, has the water vapor transmission rate of less than 10<-4> g/m<2>/day, and further has good peel strength and good filling performance.

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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IPC IPC(8): C09J7/29C08J7/06C08J7/04C08L67/02
CPCC09J7/29C08J7/06C09J2467/006C09J2433/00C08J2367/02C08J2475/04C09J2301/16C09J2301/122
Inventor 陈建平徐海斌
Owner ZHONGSHAN DONGYI HIGH TECH MATERIAL
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