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High-performance barrier film and method for preparing same

A barrier film and high-performance technology, applied in the field of preparation of high-performance barrier films, can solve the problems of high production cost, high selling price and high cost, and achieve the effects of reducing thickness and production cost, simple process method and low production cost

Inactive Publication Date: 2017-10-20
向爱双
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the cost of this process is high, resulting in the price of the finished product being as high as 7 US dollars per square meter; on the other hand, the thickness of the barrier film produced by this process has been mass-produced higher than 75 μm, and the thickness below this thickness is currently not available due to technical problems. mass production
[0005] At present, the quantum dot water-oxygen barrier film has the defects of large thickness, high production cost, and difficulty in industrialization. Therefore, it is particularly important to study new high-performance barrier films for the application of quantum dot films.

Method used

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  • High-performance barrier film and method for preparing same

Examples

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Effect test

Embodiment 1

[0034] Japan's Mitsubishi PET barrier film for packaging is used, with a thickness of 12 μm and a water vapor transmission rate of 0.08g / m 2 ·day, light transmittance 95%, divided into two layers, PET substrate layer and aluminum oxide coating layer.

[0035] The preparation flow chart of this embodiment is as follows figure 2 As shown, its specific implementation steps are as follows:

[0036] Lay the aluminum oxide-coated side of the PET barrier film on the glass substrate facing up, fix the four corners and the middle of the four sides with glue strips, and use a No. 2 wire bar to coat a layer of methacrylic resin UV-curable glue with a solid content of 100%. And attach another PET barrier film with the aluminum oxide coating facing up, and then use 800mJ / cm 2 UV energy is used for curing to obtain a composite base film layer with a thickness of 27 μm.

[0037] On the aluminum oxide coating surface of the composite base film, use a No. 3 wire rod to scrape and coat poly...

Embodiment 2

[0041] Adopt Japan Toray PC barrier film for packaging, its thickness is 30μm, water vapor transmission rate is 0.06g / m 2 .day, the light transmittance is 92%, and it is divided into two layers, which are PC substrate layer and silicon oxide layer.

[0042] The preparation flow chart of this embodiment is as follows image 3 As shown, its specific implementation steps are as follows:

[0043] Lay the silicon oxide layer of the PC barrier film upwards on the glass substrate, fix the four corners and the middle of the four sides with glue strips, use a No. After using an organic solvent, attach another PC barrier film with the PC base layer facing up, and dry it at 60°C to obtain a composite base film layer with a thickness of 66 μm.

[0044] On one side of the composite base film, a No. 2 wire rod was used to scrape polyacrylic acid heat-curable glue with a mass solid content of 50%, and cured and dried in a blast drying oven at 60°C to obtain a primer layer with a thickness ...

Embodiment 3

[0048] The Japanese Mitsubishi EVOH barrier film used for packaging has a thickness of 45μm and a water vapor transmission rate of 0.05g / m 2 .day, light transmittance 91%.

[0049]The preparation flow chart of this embodiment is as follows Figure 4 As shown, its specific implementation steps are as follows:

[0050] Spread the EVOH barrier film on the glass substrate, fix the four corners and the middle of the four sides with adhesive strips, use a No. 3 wire bar to coat a layer of methacrylic resin UV curing glue with a mass solid content of 80%, and attach another sheet EVOH barrier film, and then use No. 3 wire rod to coat a layer of methacrylic resin UV curing glue with a mass solid content of 100%, and then attach the third EVOH barrier film, and then use 1000mJ / cm 2 The UV energy is used for curing to obtain a composite base film layer with a thickness of 145 μm.

[0051] On one side of the composite base film, use a No. 10 wire rod to scrape and coat polyurethane he...

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Abstract

The invention discloses a high-performance barrier film and a method for preparing the same. The method includes steps of 1), clinging more than 2 packaging barrier films to each other by adhesion glue and solidifying the packaging barrier films to obtain composite base films; 2), coating a layer of thermosetting glue on each composite base film obtained at the step 1), drying and solidifying each composite base film to add a base coating on the basis of each composite base film; 3), carrying out rough treatment on the surfaces of each composite base film by the aid of processes for coating glue with diffusion particles on the other surface of the composite base film or laser engraving or UV (ultraviolet) glue embossing to form rough layers on the composite base films so as to obtain the high-performance barrier film. The high-performance barrier film and the method have the advantages that the high-performance barrier film prepared by the aid of the method comprises a surface rough layer, a composite base film layer and the bottom coating, is high in barrier rate and low in production cost and is thin, and the method can be directly used for preparing different types of quantum dot films.

Description

technical field [0001] The invention belongs to the field of barrier film processing and manufacturing, and in particular relates to a preparation method and product of a high-performance barrier film. Background technique [0002] The use of quantum dot film with blue light source can effectively improve the color gamut value of the display element. Since the quantum dot material is sensitive to water and oxygen, it is easy to attenuate. Therefore, when making a membrane, it needs to be packaged with a water-oxygen barrier film to avoid direct contact between the quantum dot material and the air, and improve the stability and service life of the quantum dot film during use. . [0003] At present, the thickness of the quantum dot film on the market is 300-360 μm, which can increase the display color gamut value from about 70% of the NTSC1931 standard to about 100% of the NTSC 1931 standard, but the quantum dot film of this thickness is only suitable for large-scale TV disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B38/00B65D65/40
CPCB32B37/1284B32B38/00B32B2038/0076B65D65/40
Inventor 向爱双王石
Owner 向爱双
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