High-toughness co-extrusion barrier film material

A barrier film, high toughness technology, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of low strength, low barrier performance, and high breakage rate, so as to improve the barrier performance, increase mechanical stability, and save social resources

Inactive Publication Date: 2019-01-25
张雨
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Co-extruded barrier film materials currently on the market, due to material selection, proportioning and process reasons, often have poor barrier properties, puncture resistance, heat seal strength, opening properties, adhesion, and pollution resistance during use. advanced questions
For example, the co-extrusion film of the existing products is basically a symmetrical PA (nylon) structure, and its barrier performance is not

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] Example 1

[0010] A high-toughness co-extruded barrier film material. The film has a layered structure. The layers are 21% polyethylene PE layer, 15% metallocene polyethylene layer, 5% TiC adhesive layer, 18% ethylene -Vinyl alcohol copolymer EVOH barrier layer, 5% TiC adhesive layer, 15% metallocene polyethylene layer and 21% polyethylene PE layer. Each layer of the film is formed by a co-extrusion process.

Example Embodiment

[0011] Example 2

[0012] A high-toughness co-extrusion barrier film material, the film is a layered structure, each layer is 15% polyethylene PE layer, 10% metallocene polyethylene layer, 5% TiC adhesive layer, 5% ethylene -Vinyl alcohol copolymer EVOH barrier layer, 5% TiC adhesive layer, 10% metallocene polyethylene layer and 15% polyethylene PE layer. Each layer of the film is formed by a co-extrusion process.

Example Embodiment

[0013] Example 3

[0014] A high-toughness co-extrusion barrier film material. The film has a layered structure. The layers are 60% polyethylene PE layer, 50% metallocene polyethylene layer, 5% TiC adhesive layer, and 25% ethylene. -Vinyl alcohol copolymer EVOH barrier layer, 5% TiC adhesive layer, 50% metallocene polyethylene layer and 60% polyethylene PE layer. Each layer of the film is formed by a co-extrusion process.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a high-toughness co-extrusion barrier film material. The film is of a layered structure and sequentially includes a 21% polyethylene PE layer, a 15% metallocene polyethylene layer, a 5% TiC bonding layer, a 18% ethylene-vinyl alcohol copolymer EVOH barrier layer, a 5% TiC bonding layer, a 15% metallocene polyethylene layer and a 21% polyethylene PE layer. The provided high-toughness co-extrusion barrier film material aims at achieving the purposes that by improving and optimizing a formula of the film and adopting the ethylene-vinyl alcohol copolymer EVOH barrier layerfor replacing a traditional BOPA layer, the barrier performance of the film is improved, and by adopting the polyethylene PE layers and the metallocene polyethylene layers, the mechanical stability of the film is improved. At the same time, through improvement and optimization of the formula, the materials of the layers are formed through a co-extrusion process, the tensile strength, adhesion, puncture resistance and barrier performance of the film are significantly improved, and the heat-sealing strength, openness and anti-contamination performance of the film are all significantly improved.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner 张雨
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap