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

Ethylene-ethylene vinyl alcohol copolymer/phosphorylated soybean isolated protein intercalated montmorillonite barrier packaging membrane and preparation method thereof

A technology of phosphorylated soybeans and intercalated montmorillonite, which is applied in the field of composite packaging films, can solve the problems of not easy to rot and decompose, easily produce harmful gas and peculiar smell, and achieve the effect of convenient operation, good convenience and simple process

Active Publication Date: 2016-04-06
HEFEI UNIV OF TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the increase of people's awareness of environmental protection, the application of plastic synthetic film has been challenged, and people have gradually discovered its shortcomings: it is easy to produce harmful gases and odors, and it is abandoned in the environment after use and is not easy to rot and decompose, so it is called "white pollution".

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
  • Ethylene-ethylene vinyl alcohol copolymer/phosphorylated soybean isolated protein intercalated montmorillonite barrier packaging membrane and preparation method thereof
  • Ethylene-ethylene vinyl alcohol copolymer/phosphorylated soybean isolated protein intercalated montmorillonite barrier packaging membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 100g of 10wt% ethylene-vinyl alcohol copolymer solution, put it into a 1000ml three-necked flask, heat it in a water bath to 60°C, and stir for 8 hours to obtain a homogeneous coating solution.

[0034] Place a layer of polyethylene film with a thickness of 100 μm on the coating platform of the AFA-III type automatic coating film dryer, start the vacuum pump to keep the polyethylene film flat on the coating platform, take 15g of the above coating solution and pour it on the poly On the vinyl film, apply the coating solution evenly on the polyethylene film, push the scraper at a speed of 50mm / s, dry at 35°C for 48h, then increase the temperature to 80°C, dry for 24h, remove water and formic acid, Finally, the film was peeled off from the polyethylene film, and its main performance results are shown in Table 1.

Embodiment 2

[0036] Take 100g of 10wt% ethylene-vinyl alcohol copolymer solution, add it to a 1000ml three-necked flask, heat it in a water bath to 65°C, add 10g of 1wt% phosphorylated soybean protein isolate intercalation montmorillonite solution, and stir for 8.5h to obtain a homogeneous coating film liquid.

[0037] Place a layer of polyethylene film with a thickness of 100 μm on the coating platform of the AFA-III type automatic coating film dryer, start the vacuum pump to keep the polyethylene film flat on the coating platform, take 15g of the above coating solution and pour it on the poly On the vinyl film, apply the coating solution evenly on the polyethylene film, push the scraper at a speed of 55mm / s, dry at 35°C for 48h, then raise the temperature to 80°C, dry for 24h, remove water and formic acid, Finally, the composite film was peeled off from the polyethylene film, and its main performance results are shown in Table 1.

Embodiment 3

[0039] Take 100g of 10wt% ethylene-vinyl alcohol copolymer solution, add it to a 1000ml three-necked flask, heat it in a water bath to 70°C, add 30g of 1wt% phosphorylated soybean protein isolate intercalation montmorillonite solution, stir for 9 hours, and obtain a homogeneous coating solution .

[0040]Place a layer of polyethylene film with a thickness of 100 μm on the coating platform of the AFA-III type automatic coating film dryer, start the vacuum pump to keep the polyethylene film flat on the coating platform, take 15g of the above coating solution and pour it on the poly On the vinyl film, apply the coating solution evenly on the polyethylene film, push the scraper at a speed of 65mm / s, dry at 35°C for 48h, then raise the temperature to 80°C, dry for 24h, remove water and formic acid, Finally, the composite film was peeled off from the polyethylene film, and its main performance results are shown in Table 1.

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 size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention provides an ethylene-ethylene vinyl alcohol copolymer / phosphorylated soybean isolated protein intercalated montmorillonite barrier packaging membrane which is a composite membrane of phosphorylated soybean isolated protein intercalated montmorillonite and ethylene-ethylene vinyl alcohol copolymer, wherein the mass of the phosphorylated soybean isolated protein intercalated montmorillonite in the membrane accounts for 1-7% that of the ethylene-ethylene vinyl alcohol copolymer; the mass of the montmorillonite in the phosphorylated soybean isolated protein intercalated montmorillonite accounts for 20% that of the soybean isolated protein, and the mass of sodium tripolyphosphate accounts for 3% that of the soybean isolated protein. The water vapor penetration constant of the composite barrier membrane is less than 3.5*10<6> g / (md atm) and lower than that of the ethylene-ethylene vinyl alcohol copolymer membrane which is 4.13*10<6> g / (md atm), and the oxygen penetration constant is less than 1.15*10<4>cm<3> / (md atm) and lower than that of the ethylene-ethylene vinyl alcohol copolymer membrane which is 1.25*10<4>cm<3> / (md atm); besides, the influence of humidity on the barrier performance of the composite membrane obviously smaller, and better convenience is provided for application of the ethylene-ethylene vinyl alcohol copolymer / phosphorylated soybean isolated protein intercalated montmorillonite barrier packaging membrane to food packaging.

Description

1. Technical field [0001] The invention relates to a composite packaging film, in particular to an ethylene-vinyl alcohol copolymer / phosphorylated soybean protein isolate intercalation montmorillonite barrier packaging film for food and a preparation method thereof. 2. Background technology [0002] With the increase of people's awareness of environmental protection, the application of plastic synthetic film has been challenged, and people have gradually discovered its shortcomings: it is easy to produce harmful gases and odors, and it is abandoned in the environment after use and is not easy to rot and decompose, so it is called "white pollution". Some developed countries abroad have invested a lot of manpower and material resources in researching and replacing plastics with other materials as materials for synthetic membranes. Biopolymer materials have become a current research hotspot due to their advantages such as easy regeneration, no pollution, and biodegradability. ...

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): C08L23/08C08K9/04C08K3/34C08J5/18
CPCC08J5/18C08J2323/08C08K3/346C08K9/08C08L2201/14C08L2203/16C08L23/0861
Inventor 王华林张亨牛柏澄郝利兰孙敏
Owner HEFEI UNIV OF TECH
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