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High barrier film and manufacturing method thereof

A technology with high barrier properties and production methods, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of poor toughness, brittle film, poor barrier properties, etc., and achieve less decrease in barrier properties and higher Barrier performance, good flexibility

Inactive Publication Date: 2012-12-26
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with other barrier materials such as PVDC, EVOH, and aluminum-plastic composite films, MXD6 still has the problem of slightly poorer barrier properties.
Moreover, compared with PA6 (polyamide 6 or nylon 6) films, MXD6 also has the characteristics of poor toughness, and the film is brittle if used alone

Method used

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  • High barrier film and manufacturing method thereof
  • High barrier film and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 Shown is a high barrier film with a three-layer structure consisting of the first surface layer 1, the core layer 2, and the second surface layer 3. The components of the first surface layer 1 are 10wt% of MXD6, 89.6wt% of PA6, 0.2wt% % anti-blocking agent and 0.2wt% slip agent; the above-mentioned core layer 2 consists of 60wt% MXD6, 40wt% PA6; the above-mentioned second surface layer 3 consists of 10wt% MXD6, 89.6wt% PA6, 0.2wt% anti-blocking agent and 0.2wt% slip agent.

Embodiment 2

[0039] Such as figure 1 Shown is a high barrier film with a three-layer structure consisting of the first surface layer 1, the core layer 2, and the second surface layer 3. The components of the first surface layer 1 are 20wt% of MXD6, 79.4wt% of PA6, 0.3wt% % anti-blocking agent and 0.3wt% slip agent; the above-mentioned core layer 2 consists of 65wt% MXD6, 35wt% PA6; the above-mentioned second surface layer 3 consists of 20wt% MXD6, 79.4wt% PA6, 0.3wt% anti-blocking agent and 0.3wt% slip agent.

Embodiment 3

[0041] Such as figure 1 The shown three-layer high barrier film composed of the first surface layer 1, the core layer 2 and the second surface layer 3, the components of the first surface layer 1 are 30wt% of MXD6, 69.5wt% of PA6, 0.3wt% % anti-blocking agent and 0.2wt% slippery agent; the above-mentioned core layer 2 consists of 80wt% MXD6, 20wt% PA6; the above-mentioned second surface layer 3 consists of 30wt% MXD6, 69.5wt% PA6, 0.3wt% anti-blocking agent and 0.2wt% slip agent.

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Abstract

The invention provides a high barrier film and a manufacturing method thereof. The high barrier film is a three-layer structure composed of a first surface layer, a core layer, and a second surface layer. The first surface layer is composed of 0-0.3wt% of a slipping agent, 0-0.5wt% of an anti-block agent, 10-40 wt% of MXD6, and 59.2-90 wt% of PA6 chips; the core layer is composed of 60-95 wt% of MXD6, and 5-40 wt% of PA6 chips; and the second surface layer is composed of 0-0.3wt% of a slipping agent, 0-0.5wt% of an anti-block agent, 10-40 wt% of MXD6, and 59.2-90 wt% of PA6 chips. The high barrier film above has greatly improved barrier performance, and has the characteristics of excellent barrier property, low oxygen transmission rate of the film, and good transparency and flexibility.

Description

Technical field: [0001] The invention relates to a film used in the field of packaging and a manufacturing method thereof, in particular to a film with high gas barrier properties and a manufacturing method thereof. Background technique: [0002] In the traditional process, PVDC (polyvinylidene chloride), EVOH (ethylene-vinyl alcohol copolymer), aluminum-plastic composite film and other materials are generally used as barrier packaging materials. Among them, although PVDC has high barrier performance, it is difficult to process and has certain environmental protection problems; EVOH may affect the processing process and the use of end customers due to the problem of hygroscopicity. The performance drops significantly, so the use is limited; although the aluminum-plastic composite film has excellent barrier properties, it has the disadvantage of being opaque, which is obviously limited in the packaging field. [0003] In order to prevent the above problems, the barrier mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/28C08L77/02B29C47/06B29C55/12
Inventor 林凤龙梁文东曾进兴
Owner 厦门长塑实业有限公司
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