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

Preparation method of anti-static biodegradable packaging film

A biodegradable, packaging film technology, applied in biological packaging, sustainable packaging industry, sustainable manufacturing/processing, etc., can solve the problems of reduced mechanical properties of films, affecting the appearance of films, and frictional electrification of plastic films, and achieve excellent mechanical properties. and water resistance, good biodegradability, simplified formulation effect

Active Publication Date: 2022-02-08
JIESHOU CITY TIANHONG PACKAGING MATERIAL
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Starch is recognized as the biodegradable material with the most development potential because of its wide source, low price, renewable utilization, and environmental protection. The material is sensitive to humidity changes and is easy to absorb water. After absorbing water, the mechanical properties of the film are obviously reduced, which limits its popularization and application.
[0003] As we all know, plastic films are easy to be charged by friction. The existence of static electricity will not only affect the appearance of the film due to vacuuming, but also constitute a certain electrostatic hazard.

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

Embodiment 1

[0027] (1) Add water to the high-amylose cornstarch to make starch milk with a mass concentration of 12%, and then heat it to 90-95° C. and stir for gelatinization for 30 minutes to obtain a gelatinized liquid;

[0028] (2) Add potassium carbonate to the gelatinized liquid, stir to dissolve and start to drop 3-bromopropane-1,1,1-triethyl tricarboxylate, high amylose, 3-bromopropane-1,1,1- The molar ratio of triethyl tricarboxylate and potassium carbonate is 3:1:1.02, and the molar weight of high amylose is calculated by the molar weight of hydroxymethyl groups contained in it. During the dropping process, it is heated to 75-80°C and stirred for reaction. After the addition is complete, continue the heat preservation reaction until the reaction of triethyl 3-bromopropane-1,1,1-tricarboxylate is complete, filter with suction, wash with water, dry, and pulverize to obtain modified starch;

[0029] (3) Add polyvinyl alcohol and calcium stearate to the modified starch, stir evenly,...

Embodiment 2

[0033] (1) Add water to the high-amylose cornstarch to make starch milk with a mass concentration of 10%, then heat it to 90-95° C. and stir for gelatinization for 30 minutes to obtain a gelatinized liquid;

[0034] (2) Add potassium carbonate to the gelatinized liquid, stir to dissolve and start to drop 3-bromopropane-1,1,1-triethyl tricarboxylate, high amylose, 3-bromopropane-1,1,1- The molar ratio of triethyl tricarboxylate and potassium carbonate is 4:1:1, and the molar weight of high amylose is based on the molar weight of hydroxymethyl groups contained in it. During the dropping process, it is heated to 75-80°C and stirred for reaction. After the addition is complete, continue the heat preservation reaction until the reaction of triethyl 3-bromopropane-1,1,1-tricarboxylate is complete, filter with suction, wash with water, dry, and pulverize to obtain modified starch;

[0035] (3) Add polyvinyl alcohol and ethylene bisoleic acid amide to the modified starch, stir evenly,...

Embodiment 3

[0039] (1) Add water to the high-amylose cornstarch to make starch milk with a mass concentration of 15%, then heat it to 90-95° C. and stir for gelatinization for 30 minutes to obtain a gelatinized liquid;

[0040] (2) Add potassium carbonate to the gelatinized liquid, stir to dissolve and start to drop 3-bromopropane-1,1,1-triethyl tricarboxylate, high amylose, 3-bromopropane-1,1,1- The molar ratio of triethyl tricarboxylate and potassium carbonate is 5:1:1, and the molar weight of high amylose is based on the molar weight of hydroxymethyl groups contained in it. During the dropping process, it is heated to 75-80°C and stirred for reaction. After the addition is complete, continue the heat preservation reaction until the reaction of triethyl 3-bromopropane-1,1,1-tricarboxylate is complete, filter with suction, wash with water, dry, and pulverize to obtain modified starch;

[0041] (3) Add polyvinyl alcohol and calcium stearate to the modified starch, stir evenly, the weight ...

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 discloses a preparation method of an anti-static biodegradable packaging film, and relates to the technical field of biodegradable films. The anti-static biodegradable packaging film is prepared from modified starch, polyvinyl alcohol and a lubricant, no plasticizer or anti-static agent is added, and the formula composition is greatly simplified. Meanwhile, the modified starch is adopted as a main component, the prepared packaging film belongs to a film material with high starch content and has excellent mechanical property and water resistance, and the application defects of an existing film material with high starch content are overcome.

Description

Technical field: [0001] The invention relates to the technical field of biodegradable films, in particular to a preparation method of an antistatic biodegradable packaging film. Background technique: [0002] Starch is recognized as the biodegradable material with the most development potential because of its wide source, low price, renewable utilization, and environmental protection. The material is sensitive to humidity changes and is easy to absorb water. After absorbing water, the mechanical properties of the film are obviously reduced, which limits its popularization and application. [0003] As we all know, plastic film is easy to be charged by friction. The existence of static electricity will not only affect the appearance of the film due to vacuuming, but also constitute a certain electrostatic hazard. In this field, the antistatic effect of the film is usually improved by adding an antistatic agent, and a surfactant is generally used as the antistatic agent. [0...

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): C08L3/14C08L29/04C08K5/098C08K5/20C08K5/09C08J5/18C08B33/00
CPCC08J5/18C08B33/00C08J2303/14C08J2429/04C08K5/098C08K5/20C08K5/09Y02W90/10
Inventor 李汪洋胡伟张德顺吴磊王爱华郭浩徐凤锦徐文杰刘鹏举李怡俊
Owner JIESHOU CITY TIANHONG PACKAGING MATERIAL
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