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Heat-sealable antistatic polyamide co-extruded composite film as well as preparation method and application thereof

A co-extrusion composite and polyamide technology, which is applied in the field of heat-sealable antistatic polyamide co-extrusion composite film and its preparation, can solve the problems of uneven flow of the heat-sealing layer, easy generation of static slippery agent, and impact on performance. Achieve the effects of reducing heat shrinkage, excellent antistatic performance, and enhancing heat shrinkage

Inactive Publication Date: 2022-02-18
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of uneven flow of the heat-sealing layer of the existing heat-sealable film, easy generation of static electricity and influence of performance with conventional slippery agents, the present invention provides a heat-sealable antistatic polyamide co-extruded composite film, including heat-sealable Polyamide surface layer, polyamide core layer, polyamide functional surface layer;

Method used

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  • Heat-sealable antistatic polyamide co-extruded composite film as well as preparation method and application thereof
  • Heat-sealable antistatic polyamide co-extruded composite film as well as preparation method and application thereof
  • Heat-sealable antistatic polyamide co-extruded composite film as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The heat-sealable polyamide co-extrusion film has a three-layer structure, and the structure of the film is a heat-sealable polyamide surface layer, a polyamide core layer, and a polyamide functional surface layer from the outside to the inside;

[0043] The mass percent of each component of the heat-sealable polyamide surface layer is: 99.6% of nylon 6 / 66 / 1010 copolymer, 0.1% of polytetrafluoroethylene (PTFE) micropowder, and 0.3% of organosilicon crosslinking microspheres.

[0044] The mass percent of each component of the polyamide core layer is: 82% of nylon 6, 15% of PA6-b-PEG, and 3% of active nano magnesium oxide.

[0045] The mass percent of each component of the polyamide functional surface layer is: 84.7% of nylon 6, 15% of PA6-b-PEG, and 0.3% of organic silicon cross-linked microspheres.

[0046] Its preparation method:

[0047] B1. Mix the components in the heat-sealable polyamide surface layer, polyamide core layer and polyamide functional surface layer in t...

Embodiment 2

[0052] The heat-sealable polyamide co-extrusion film has a three-layer structure, and the structure of the film is a heat-sealable polyamide surface layer, a polyamide core layer, and a polyamide functional surface layer from the outside to the inside;

[0053] The mass percent of each component of the heat-sealable polyamide surface layer is: 98.5% of nylon 6 / 66 / 1010 copolymer, 0.5% of polytetrafluoroethylene (PTFE) micropowder, and 1% of organosilicon crosslinking microspheres.

[0054] The mass percent of each component of the polyamide core layer is: 75% of nylon 6, 20% of PA6-b-PEG, and 5% of active nano magnesium oxide.

[0055] The mass percent of each component of the polyamide functional surface layer is: 79% of nylon 6, 20% of PA6-b-PEG, and 1% of organic silicon cross-linked microspheres.

[0056] Its preparation method is identical with embodiment 1.

Embodiment 3

[0058] The heat-sealable polyamide co-extrusion film has a three-layer structure, and the structure of the film is a heat-sealable polyamide surface layer, a polyamide core layer, and a polyamide functional surface layer from the outside to the inside;

[0059] The mass percent of each component of the heat-sealable polyamide surface layer is: 99.85% of nylon 6 / 66 / 1010 copolymer, 0.05% of polytetrafluoroethylene (PTFE) micropowder, and 0.1% of organosilicon crosslinking microspheres.

[0060] The mass percent of each component of the polyamide core layer is: 89% of nylon 6, 10% of PA6-b-PEG, and 1% of active nano magnesium oxide.

[0061] The mass percent of each component of the polyamide functional surface layer is: 89.9% of nylon 6, 10% of PA6-b-PEG, and 0.1% of organic silicon cross-linked microspheres.

[0062] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to the technical field of plastic packaging materials, in particular to a heat-sealable antistatic polyamide co-extruded composite film and a preparation method and application thereof. The heat-sealable antistatic polyamide co-extruded composite film comprises a heat-sealable polyamide surface layer, a polyamide core layer and a polyamide functional surface layer, wherein the heat-sealable polyamide surface layer comprises copolymer nylon, an anti-dripping agent and an opening slipping agent; the polyamide core layer comprises nylon 6, an antistatic agent and nanometer metal particles; and the polyamide functional surface layer comprises nylon 6, the antistatic agent and the opening slipping agent. The heat-sealable antistatic polyamide co-extruded composite film provided by the invention has excellent comprehensive properties such as relatively good apparent mass and heat-sealing strength, relatively low friction coefficient, haze and heat shrinkage rate, high tensile strength and large elongation at break, is integrally made of a single material, is convenient for later recycling, has good antistatic performance, and shows wide application prospects in the packaging fields of food, medicines, electronic products and the like.

Description

technical field [0001] The invention relates to the technical field of plastic packaging materials, in particular to a heat-sealable antistatic polyamide co-extruded composite film and its preparation method and application. Background technique [0002] Biaxially oriented nylon film (BOPA) has the characteristics of high tensile strength, excellent puncture resistance, and excellent performance in gas barrier properties, pinhole resistance, transparency, printability, etc., so it is widely used in food , medicine, cosmetics and mechanical electronics and other packaging fields. The existing biaxially oriented polyamide film is usually made of nylon 6, which has a melting point of 220°C and is not easy to be heat-sealed (the existing heat-sealing temperature is 110-140°C). In the existing market, nylon and CPP or CPE heat-sealable materials are compounded with solvent-based adhesives to meet the heat-sealing performance. However, composite CPP and other heat-sealing materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/34B32B27/06B32B7/025B32B7/027C08J5/18C08L77/06C08L77/02C08L27/18C08L87/00C08K3/22B29D7/01B65D65/40
CPCB32B27/34B32B27/08B32B7/025B32B7/027C08J5/18B29D7/01B65D65/40C08J2377/06C08J2377/02C08J2427/18C08J2487/00C08K2003/222B29K2105/0008B32B2307/31B32B2307/21
Inventor 贾露颜艺林林新土陈曦廖贵何李智尧郑伟
Owner 厦门长塑实业有限公司
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