A kind of water vapor oxygen barrier film and preparation method thereof
An oxygen barrier and oxygen barrier technology, applied in chemical instruments and methods, electrical components, gaseous chemical plating, etc., can solve problems such as general color expression, and achieve good protection, high barrier properties, and uniform thickness.
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[0045] The preparation method of the water vapor oxygen barrier film provided by the present invention comprises the following steps:
[0046] (1) Preparation of organic polymer layer
[0047] (2) Coating an anti-blocking layer on the surface of the organic polymer layer
[0048] (3) depositing a water vapor and oxygen barrier layer on the other surface of the organic polymer layer.
[0049] The optical properties of the water vapor and oxygen barrier films in the examples are evaluated by light transmittance and haze. The higher the light transmittance and the lower the haze, the better the light transmittance. Light transmittance (also called light transmittance) and haze were measured using an EEL 57D haze meter from Diffusion, UK.
[0050] The barrier properties of the water vapor and oxygen barrier films in the examples were evaluated by the water vapor transmission rate and the oxygen transmission rate. The water vapor transmission rate and oxygen transmission rate were...
Embodiment 1
[0052] The water vapor and oxygen barrier film provided by the present invention comprises an organic polymer layer, a water vapor and oxygen barrier layer and an anti-blocking layer. Among them, the organic polymer layer is a transparent film prepared by ABA three-layer co-extrusion process, the A layer is made of PE, the B layer is made of PET, the thickness of the organic polymer layer is 50 μm, and the thickness of the A layer is 2 μm, The thickness of the layer is 46 μm. The material of the water vapor and oxygen barrier layer is Al 2 O 3 , with a thickness of 2 nm and a deposition temperature of 80 °C. The anti-blocking particles in the anti-blocking layer are silica particles with a particle size of 0.5-2 μm. The thickness of the anti-blocking layer is 2 μm, and the anti-blocking particles are bonded to the lower surface of the organic polymer layer through water-soluble polyacrylate. The raw material of the anti-adhesion layer is first prepared into a coating liqui...
Embodiment 2
[0054] Water vapor oxygen barrier film as provided in Example 1. Among them, the organic polymer layer is a transparent film prepared by ABA three-layer co-extrusion process, the material of layer A is PVDF, the material of layer B is PET, the thickness of the organic polymer layer is 50 μm, and the thickness of layer A is 2 μm, The thickness of the layer is 46 μm. The material of the water vapor and oxygen barrier layer is Al 2 O 3 , with a thickness of 5 nm and a deposition temperature of 200 °C. The anti-blocking particles in the anti-blocking layer are silica particles with a particle size of 0.5-2 μm. The thickness of the anti-blocking layer is 3 μm, and the anti-blocking particles are bonded to the lower surface of the organic polymer layer through water-soluble polyacrylate. The raw material of the anti-adhesion layer is first prepared into a coating liquid, the coating liquid includes 2% of water-soluble polyacrylate and 0.2% of colloidal silicon, and the rest is p...
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Abstract
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