Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-resistance antibacterial PE (polyethylene) film and preparation method thereof

A high-barrier, nano-technology, applied in the field of high-barrier antibacterial PE film and its preparation, can solve the problems of poor barrier antibacterial effect, etc., achieve good barrier properties, improve antibacterial properties and barrier properties, and broaden the application effect.

Active Publication Date: 2013-07-17
ANHUI SONGTAI PACKAGING MATERIALS
View PDF3 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantage is that it has poor barrier properties to oxygen, water vapor, etc. and poor antibacterial effect.
Although it is currently the most widely used and used plastic packaging film, it is often used as the inner layer film of composite flexible packaging materials.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-resistance antibacterial PE (polyethylene) film and preparation method thereof
  • High-resistance antibacterial PE (polyethylene) film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the high-barrier antibacterial PE film is that the nanocomposite modified masterbatch is added to the LDPE matrix resin, and the high-barrier antibacterial PE film is obtained by extrusion blow molding; the quality of the nanocomposite modified masterbatch is the LDPE matrix 5% of resin mass. The ratio of each component is:

[0025] 100 parts of LDPE, 6.0 parts of nano ZnO, 20 parts of montmorillonite, 20 parts of maleic anhydride grafted polyethylene;

[0026] Its preparation method is as follows:

[0027] 1) First disperse 20 parts by mass of montmorillonite in 1mol L -1 In the zinc chloride aqueous solution, the solid-to-liquid ratio is 1g / 10ml, stirred at a constant temperature of 65°C for 4h, filtered and washed repeatedly until there is no zinc ion in the filtrate, dried by blasting at 80°C for 24h, then put into a muffle furnace for drying at 400°C Bake for 2 hours to obtain montmorillonite loaded with nano-ZnO with a loading capacity of 30...

Embodiment 2

[0033] In this embodiment, the high-barrier antibacterial PE film is that the nanocomposite modified masterbatch is added to the LDPE matrix resin, and the high-barrier antibacterial PE film is obtained by extrusion blow molding; the quality of the nanocomposite modified masterbatch is the LDPE matrix 3% of resin mass. The ratio of each component is:

[0034] 100 parts of LDPE, 8.0 parts of nano ZnO, 30 parts of montmorillonite, 30 parts of maleic anhydride grafted polyethylene;

[0035] Its preparation method is as follows:

[0036] 1) Disperse 30 parts by mass of montmorillonite in 1mol L -1 In the zinc chloride aqueous solution, the solid-to-liquid ratio is 1g / 10ml, stirred at a constant temperature of 65°C for 4h, filtered and washed repeatedly until there is no zinc ion in the filtrate, dried by blasting at 80°C for 24h, then put into a muffle furnace for drying at 400°C Bake for 2 hours to obtain montmorillonite loaded with nano-ZnO with a loading capacity of 27%.

...

Embodiment 3

[0042] In this embodiment, the high-barrier antibacterial PE film is that the nanocomposite modified masterbatch is added to the LDPE matrix resin, and the high-barrier antibacterial PE film is obtained by extrusion blow molding; the quality of the nanocomposite modified masterbatch is the LDPE matrix 8% of resin mass. The ratio of each component is:

[0043] 100 parts of LDPE, 3.2 parts of nano ZnO, 10 parts of montmorillonite, 10 parts of maleic anhydride grafted polyethylene;

[0044] Its preparation method is as follows:

[0045] 1) Disperse 10 parts by mass of montmorillonite in 1mol L -1 In the aqueous solution of zinc acetate, the solid-to-liquid ratio is 1g / 10ml, stirred at 65°C for 4h, filtered and washed repeatedly until there is no zinc ion in the filtrate, dried by blast at 80°C for 24h, then baked in a muffle furnace at 400°C 2h, the montmorillonite loaded with nano-ZnO was obtained with a loading of 32%.

[0046] 2) Disperse the nano-ZnO-loaded montmorillonite ...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
degree of graftingaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-resistance antibacterial PE (polyethylene) film and a preparation method thereof, wherein the high-resistance antibacterial PE film is prepared in the way that nanometer composite modified master batch is added to LDPE (low density polyethylene) matrix resin and finally extrusion blown molding is carried out; the mass of the nanometer composite modified master batch is 3-8% of the mass of the LDPE matrix resin; and the nanometer composite modified master batch is prepared by carrying out blending extrusion on nanometer ZnO loaded organic montmorillonite, LDPE and maleic anhydride grafted polyethylene, the organic montmorillonite loading the nanometer ZnO is prepared by intercalation composition of nanometer ZnO loaded montmorillonite and an intercalation agent, and the nanometer ZnO loaded montmorillonite is prepared by loading the nanometer ZnO on montmorillonite. Compared with a pure PE film, the high-resistance antibacterial PE film disclosed by the invention has the advantages that the oxygen transmission rate is reduced by 31%, the water transmission rate is reduced by 40% and the antibacterial rate is up to 99.7%.

Description

1. Technical field [0001] The invention belongs to the preparation technology of food and medicine packaging film materials, in particular to a high-barrier antibacterial PE film and a preparation method thereof. 2. Background technology [0002] PE film is a translucent and soft film with good chemical stability, temperature resistance, heat sealing and moisture resistance, and is widely used in food and pharmaceutical packaging materials. Its main disadvantage is that it has poor barrier properties to oxygen, water vapor, etc. and poor antibacterial effect. Although it is currently the most widely used and used plastic packaging film, it is often used as the inner film of composite flexible packaging materials. 3. Contents of the invention [0003] The invention aims to provide a high-barrier antibacterial PE film and a preparation method thereof. The technical problem to be solved is to modify PE to improve the barrier and antibacterial performance of the PE packaging ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08K9/12C08K9/04C08K3/22C08K3/34C08J3/22
Inventor 焦国平王华林翟林峰齐继业
Owner ANHUI SONGTAI PACKAGING MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com