Modified polyolefin composite membrane composition, modified polyolefin composite membrane and preparation method and application thereof

A composite film and composition technology, applied in chemical instruments and methods, applications, flexible coverings, etc., can solve the problems of composite packaging materials in terms of puncture resistance, moisture resistance, water resistance, gas resistance, oxygen resistance, pressure resistance and drop Poor performance, composite packaging materials are not easy to recycle and reuse, etc.

Active Publication Date: 2021-04-30
SHANGHAI ROYAL NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the composite packaging material in the prior art is not easy to recycle and reuse, the problems of the composite packaging material’s poor puncture resistance, moisture resistance, water resistance and gas and oxygen resistance, and the composite packaging material’s poor performance. To address the problems of poor pressure resistance and drop resistance, a modified polyolefin composite film composition, a modified polyolefin composite film and its preparation method and application are provided

Method used

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  • Modified polyolefin composite membrane composition, modified polyolefin composite membrane and preparation method and application thereof
  • Modified polyolefin composite membrane composition, modified polyolefin composite membrane and preparation method and application thereof
  • Modified polyolefin composite membrane composition, modified polyolefin composite membrane and preparation method and application thereof

Examples

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preparation example Construction

[0051] According to the third aspect of the present invention, the present invention provides a preparation method of the aforementioned composite membrane, wherein the preparation method comprises:

[0052] (1) using the first material to prepare the first layer of film 810;

[0053] (2) using the second material to prepare the interlayer film 830;

[0054] (3) The third material is used to prepare the PE corona layer 610, the fourth material is used to prepare the thermoplastic barrier layer 950, the fifth material is used to prepare the PE heat sealing layer 611, and the PE corona layer 610, the thermoplastic barrier layer 950 and the The PE heat-sealing layer 611 is sequentially bonded by the first polymer adhesive layer 210 and the second polymer adhesive layer 220 to prepare a third film 850;

[0055] (4) The first layer film 810, the intermediate layer film 830 and the third layer film 850 are sequentially bonded through the first glue layer 821 and the second glue lay...

Embodiment 1

[0102] This example is to illustrate the preparation of the modified polyolefin composite film by using the modified polyolefin composite film composition of the present invention and the preparation method of the present invention.

[0103] (1) The modified polyolefin composite film composition includes:

[0104] The first layer of film material: multi-layer co-extruded biaxially oriented polyethylene (BOPE) film.

[0105] Intermediate film material: multilayer co-extruded biaxially oriented polyethylene vapor-deposited alumina film.

[0106] The third layer of film material:

[0107] PE corona layer material: the first medium density linear polyethylene (MLDPE) and the first anti-blocking masterbatch; based on the total weight of the PE corona layer material, the content of the first medium density linear polyethylene is 96.5% by weight, and the content of the first anti-blocking masterbatch is 3.5% by weight.

[0108] Barrier film material: thermoplastic polyvinyl alcoho...

Embodiment 2

[0129] This example is to illustrate the preparation of the modified polyolefin composite film by using the modified polyolefin composite film composition of the present invention and the preparation method of the present invention.

[0130] (1) The modified polyolefin composite film composition includes:

[0131] The first layer of film material: multi-layer co-extruded biaxially oriented polyethylene (BOPE) film.

[0132] Intermediate film material: multilayer co-extruded biaxially oriented polyethylene vapor-deposited alumina film.

[0133] The third layer of film material:

[0134] PE corona layer material: the first medium density linear polyethylene (MLDPE) and the first anti-blocking masterbatch; based on the total weight of the PE corona layer material, the content of the first medium density linear polyethylene is 80% by weight, and the content of the first anti-blocking masterbatch is 20% by weight.

[0135] Barrier film material: thermoplastic polyvinyl alcohol, ...

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Abstract

The invention relates to the technical field of composite packaging and processing, and discloses a modified polyolefin composite film composition, a modified polyolefin composite film and a preparation method and application of the modified polyolefin composite film. The composition comprises a first layer of film material, a middle layer of film material and a third layer of film material, wherein the third layer of film material comprises a PE corona layer material, a barrier layer film material and a PE heat-seal layer material; wherein the first layer of film material and the middle layer of film material respectively contain one or more selected from C4-C8 polyethylene, unitary homo-polypropylene, binary co-polypropylene and ternary co-polypropylene; and the barrier layer film material contains an ethylene-vinyl alcohol copolymer and/or thermoplastic polyvinyl alcohol. The composite film has high barrier property, puncture resistance, pressure resistance and falling property.

Description

technical field [0001] The invention relates to the technical field of composite packaging processing, in particular to a modified polyolefin composite film composition and a modified polyolefin composite film and a preparation method and application thereof. Background technique [0002] With the improvement of people's living standards and the diversification of aesthetics, consumers and producers are pursuing the ultimate in both quality and appearance of packaging. Most packaging uses multi-material films for lamination to meet functional and appearance requirements. For example, the single-product composite packaging structure of liquid milk is: BOPA film / / glue / / PET aluminized film / / glue / / blown PE film; nuts composite packaging structure: BOPP film / / glue / / paper / / glue / / BOPET Aluminized Film / / Glue / / Blown PE Film. [0003] As an indispensable material for product protection, packaging demand and output are increasing, but it is not easy to classify and recycle waste mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/30B32B27/08B32B27/06B32B33/00B32B7/12B32B37/12B65D65/40B65D85/72
CPCB32B27/32B32B27/306B32B27/08B32B33/00B32B7/12B32B37/12B65D65/40B65D85/72B32B2307/7244B32B2307/7246B32B2307/7265B32B2535/00B32B2439/70B32B2439/80Y02W30/80
Inventor 韦丽明黎倬辰
Owner SHANGHAI ROYAL NEW MATERIALS TECH CO LTD
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