A high-barrier composite film

A high-barrier, composite film technology, applied in the field of packaging materials, can solve problems such as film material aging

Active Publication Date: 2019-01-15
CANGNAN BAOFENG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the process of long-term use, it will cause a certain aging of the film material, so there is an urgent need for a film material that still has high barrier properties under long-term use conditions, and takes into account flame retardancy and antibacterial properties

Method used

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  • A high-barrier composite film
  • A high-barrier composite film

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Effect test

Embodiment

[0055] A high-barrier composite film, adding PP plastic particles and PET plastic particles to a co-extrusion cast film machine to make a PET / PP film including a PET layer and a PP layer,

[0056] The PP plastic particles comprise the following components by weight:

[0057] PP: 120 parts, trihydroxypolyoxypropylene ether: 25 parts, N, N'-(4,4'-methylenediphenyl) bismaleimide: 5 parts, trimethylolpropane triacrylic acid Methyl ester: 15 parts, 4,4'-dihydroxydiphenyl sulfide: 8 parts, montmorillonite: 8 parts, paraffin wax: 10 parts, antioxidant 1010: 0.2 parts, nano-TiO2: 2 parts, polyether siloxane Alkane copolymer: 0.5 parts, methyl hydroxyethyl cellulose: 0.5 parts, vinyl triperoxy tert-butylsilane: 1 part;

[0058] Described PET plastic particle comprises following composition by weight:

[0059] Terephthalic acid: 1000 parts; Ethylene glycol: 600 parts; 2-nitroterephthalic acid-4-methyl ester: 10 parts, maleic anhydride: 50 parts, 2-methyl-2,4- Pentylene glycol: 5 part...

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Abstract

The invention discloses a cast film with a high barrier property. PP plastic particles and PET plastic particles are added into a co-extruding film casting machine to prepare a PET/PP film containing a PET layer and a PP layer. The PP plastic particles are prepared through blending modification, and N,N'-(4,4'-methylene diphenyl)bismaleimide, trimethylolpropane trimethacrylate and 4,4'-dihydroxy diphenyl sulfide are added to improve the barrier property of the cast film. The PET plastic particles are modified through a synthetic modification method, and comprise 2-nitroterephthalic acid-4-methyl ester, maleic anhydride, 2-methyl-2,4-pentanediol, 2,3-diobromoethane-1,4-glycol, tetrabromo terephthalic acid, bis(2-ethyl hexyl)terephthalic acid, 4-phthalic anhydride, 2-amino terephthalic acid, 10 parts of 2,2-diemthyl-1,3-propylene glycol, 2,2-difluoro-1,3-benzodioxole, magnesium fluosilicate and antibacterial agent with terephthalic acid and ethylene glycol being base materials. Through complementation of the two materials, the good effect of high barrier, flame retardancy and antibacterium is achieved.

Description

technical field [0001] The invention relates to a packaging material, in particular to a high-barrier composite film. Background technique [0002] High-barrier film is a multi-layered film made by simultaneously extruding a material with strong gas barrier properties and polyolefin with strong thermal seam and moisture barrier properties. [0003] In the prior art, there are other new requirements for high barrier films, especially in some food packaging, there are also some requirements for antibacterial performance and flame retardancy. Especially in the process of long-term use, it will cause a certain aging of the film material, so there is an urgent need for a film material that still has high barrier properties under long-term use conditions, and takes into account flame retardancy and antibacterial properties. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide one. [0005] To achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L71/02C08L91/06C08L51/06C08K13/02C08K3/34C08K3/22C08K5/375C08K5/103C08G63/685C08G63/682C08G63/78C08G63/91C08K13/06C08K9/04C08K3/36C08L67/06B32B27/08B32B27/18B32B27/24B32B27/32B32B27/36B29C41/32
CPCB29C41/32B32B27/08B32B27/18B32B27/24B32B27/32B32B27/36B32B2250/24B32B2307/3065B32B2307/54B32B2307/7145B32B2307/7242C08G63/6828C08G63/6858C08G63/78C08G63/918C08K3/34C08K3/36C08K9/04C08K13/06C08K2201/011C08L23/12C08L2201/02C08L2205/035C08L71/02C08L91/06C08L51/06C08K13/02C08K3/346C08K2003/2241C08K5/375C08K5/103C08L67/06
Inventor 林福亮
Owner CANGNAN BAOFENG PRINTING
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