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Barrier composite film and preparation method thereof

A composite film and adhesive technology, applied in the direction of film/sheet-like adhesives, adhesives, etc., can solve the problems of water vapor barrier effect, unsatisfactory peel strength and filling performance, complex process, etc., and achieve good sealing and barrier effect. , The process is simple, the effect of blocking water permeability is small

Pending Publication Date: 2019-10-29
ZHONGSHAN DONGYI HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a barrier composite film with ideal barrier effect, peel strength and filling performance and simple process in view of the defects of unsatisfactory water vapor barrier effect, peel strength and filling performance and complicated process in the prior art and its preparation method

Method used

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  • Barrier composite film and preparation method thereof
  • Barrier composite film and preparation method thereof
  • Barrier composite film and preparation method thereof

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preparation example Construction

[0055] As one of the preferred embodiments of the present invention, the preparation method of the barrier film of the present invention includes: coating the first adhesive on the polymer layer 10 to form the first adhesive layer 20, and then laminating it with the metal layer 30 , and then coat or stick a layer of pressure-sensitive adhesive or thermosetting adhesive on the other side of the metal layer 30 to form the second adhesive layer 40 , and then stick to the release protection layer 50 .

[0056] As one of the preferred embodiments of the present invention, before the step of applying the first adhesive layer 20 to the high molecular polymer layer 10, the high molecular polymer layer 10 is first subjected to inorganic treatment to form the inorganic layer 12, and / or hardening treatment to form the hardened protective layer 11 .

Embodiment 1

[0059] As shown in Table 1, use a 50 μm thick PET film (DuPont Hongji 50 μm) as the substrate layer, and coat a layer of 10 μm thick polyester adhesive (Comax D812) on the surface of the PET film as the first adhesive After that, it is laminated with a rolled copper foil with a thickness of 50 μm, and then coated with an acrylic adhesive (DIC 6030) with a thickness of 50 μm on the other side of the copper foil. The properties of the barrier film are shown in Table 2.

Embodiment 2

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

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Abstract

The invention relates to the field of barrier films for blocking water vapor, and provides a barrier composite film with a good barrier effect and a simple process and a preparation method thereof. The defects that in the prior art, the oxygen barrier effect of water vapor is not ideal and the process is complicated are overcome. The barrier composite film sequentially comprises a polymer layer with a thickness of 5-100 [mu]m, a first adhesive layer with a thickness of 5-50 [mu]m, a metal layer with a thickness of 10-100 [mu]m and a second adhesive layer with a thickness of 10-200 [mu]m. Compared with the prior art, the barrier composite film and the preparation method thereof are simple in process, the barrier performance of the barrier film is good, the barrier water permeability is lessthan 10<-4>g / m<2> / day, and the peel strength and the filling performance are good.

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 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 materials. -4 g / day...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29
CPCC09J7/29C09J2400/163C09J2467/006C09J2433/00C09J2475/00C09J2400/10C09J2301/16C09J2301/122
Inventor 陈建平徐海斌
Owner ZHONGSHAN DONGYI HIGH TECH MATERIAL
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