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A kind of biaxially stretched polyketone co-extruded barrier film and preparation method thereof

A biaxially stretched, barrier film technology, applied in the field of food packaging materials, can solve the problems that cannot meet the requirements of high barrier film application field, biaxially stretched POK film does not have high barrier, etc., to reduce antibacterial ion transfer and improve sports ability , Improve the effect of barrier effect

Active Publication Date: 2021-11-12
福建长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem mentioned in the background technology that "biaxially stretched POK film does not have high barrier properties and cannot meet the requirements of high barrier film application fields"

Method used

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  • A kind of biaxially stretched polyketone co-extruded barrier film and preparation method thereof
  • A kind of biaxially stretched polyketone co-extruded barrier film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A biaxially oriented polyketone co-extruded barrier film, comprising five layers of co-extruded film, the film layer structure from the outside to the inside is a polyamide outer layer, a first polyketone composite material layer, a polyamide antibacterial core layer, and a second polyamide layer. Ketone composite material layer, polyamide inner surface layer;

[0033] The polyamide outer layer and the polyamide inner layer include the following components according to mass percentage: 99.2% of polyamide 6, 0.6% of silicon dioxide, and 0.2% of ethylene bisstearic acid amide.

[0034] The first polyketone composite material layer and the second polyketone composite material layer include the following components according to mass percentage: polyketone resin 62%, semi-aromatic polyamide MXD6 20%, PA-g-MHA 5%, polyacrylic acid 12% , magnesium stearate 1%.

[0035] The polyamide antibacterial core layer comprises the following components according to mass percentage: 82% ...

Embodiment 2

[0042] A biaxially oriented polyketone co-extruded barrier film, comprising five layers of co-extruded film, the film layer structure from the outside to the inside is a polyamide outer layer, a first polyketone composite material layer, a polyamide antibacterial core layer, and a second polyamide layer. Ketone composite material layer, polyamide inner surface layer;

[0043] The polyamide outer layer and the polyamide inner layer include the following components according to mass percentage: 98.5% of polyamide 6, 1% of silicon dioxide, and 0.5% of ethylene bisstearic acid amide.

[0044] The first polyketone composite material layer and the second polyketone composite material layer include the following components according to mass percentage: polyketone resin 45%, semi-aromatic polyamide MXD6 30%, PA-g-MHA 8%, polyacrylic acid 15% , magnesium stearate 2%.

[0045] The polyamide antibacterial core layer includes the following components according to mass percentage: 72% of po...

Embodiment 3

[0048] A biaxially oriented polyketone co-extruded barrier film, comprising five layers of co-extruded film, the film layer structure from the outside to the inside is a polyamide outer layer, a first polyketone composite material layer, a polyamide antibacterial core layer, and a second polyamide layer. Ketone composite material layer, polyamide inner surface layer;

[0049] The polyamide outer layer and the polyamide inner layer include the following components according to mass percentage: 99.5% of polyamide 6, 0.4% of silicon dioxide, and 0.1% of ethylene bisstearic acid amide.

[0050] The first polyketone composite material layer and the second polyketone composite material layer include the following components according to mass percentage: polyketone resin 71.5%, semi-aromatic polyamide MXD6 15%, PA-g-MHA 3%, polyacrylic acid 10% , magnesium stearate 0.5%.

[0051] The polyamide antibacterial core layer comprises the following components according to mass percentage: ...

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Abstract

The invention provides a biaxially oriented polyketone co-extruded barrier film and a preparation method thereof, wherein the biaxially oriented polyketone co-extruded barrier film comprises a polyamide outer layer, a first polyketone composite material layer, and a polyamide antibacterial core layer, the second polyketone composite material layer, polyamide inner surface layer; the components of the first polyketone composite material layer and the second polyketone composite material layer include: polyketone resin 45%~71.5%, semi-aromatic Family polyamide MXD6 15% to 30%, compatibilizer 3% to 8%, polyacrylic acid 10% to 15%, lubricant 0.5% to 2%. The biaxially oriented polyketone co-extruded barrier film has excellent barrier properties and puncture resistance, and is suitable for high-temperature cooking and boiling, and low-temperature refrigeration for flexible packaging.

Description

technical field [0001] The invention relates to the technical field of food packaging materials, in particular to a biaxially stretched polyketone co-extruded barrier film and a preparation method thereof. Background technique [0002] Because of its barrier properties, high barrier films have good gas barrier properties, moisture barrier properties, oil barrier properties, and fragrance retention, and have a wide range of applications. For example, high-barrier films can be used in product packaging such as food, medicine, and chemicals. In addition, high-barrier films are also used in electronic device packaging and fuel cell diaphragms. [0003] At present, high-barrier films mainly include: (1) Coating barrier films such as PVDC and PVA, but PVDC is not environmentally friendly, PVA is not water-resistant, and there may be residual organic solvents, which will further cause pollution; (2) Co-extrusion of MXD6, EVOH High-barrier film, MXD6 is difficult to process, EVOH i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L73/00C08L77/00C08L77/06C08L51/08C08L33/04C08K3/36C08K5/20C08K5/098C08K9/12C08K3/34C08J5/18B32B27/08B32B27/28B32B27/34
CPCB32B27/08B32B27/288B32B27/34B32B2307/7145C08J5/18C08J2373/00C08J2377/02C08J2451/08C08J2477/00C08J2477/06C08K3/346C08K3/36C08K5/098C08K5/20C08K9/12
Inventor 刘运锦贾露林新土李智尧李永泉
Owner 福建长塑实业有限公司
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