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

Method for preparing biodegradable membrane

A technology for biodegradation and biodegradation of polyester is applied in the field of preparation of biodegradable films, which can solve problems such as soil structure damage and land yield reduction, and achieve the effects of simple production process, improved efficiency and reduced processing steps.

Active Publication Date: 2013-03-13
张晓程
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These abandoned water-retaining films also caused great damage to the soil structure of the land, which directly led to a series of adverse consequences such as land production reduction.

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
  • Method for preparing biodegradable membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Prepare 40 kg of corn starch, 55 kg of polyvinyl alcohol, 6 kg of glycerin, polyglycidyl sebacate-D, 2 kg of L-malic acid, 1 kg of water, 1 kg of stearic acid, and poly 3-hydroxyl Butyrate 5 kg.

[0046] 2. Add corn starch, polyvinyl alcohol, compound plasticizer, lubricant, and biodegradable polyester to the high-speed mixer, and mix well;

[0047] 3. Put the above-mentioned uniformly mixed raw materials into a granulator for mixing, melting, extruding, cooling, and then pelletizing to obtain biodegradable resin pellets for making films;

[0048] 4. Add the biodegradable resin particles obtained in the above steps to a film blowing machine to make a film.

Embodiment 2

[0050] 1. Prepare 30 kilograms of corn starch, 45 kilograms of polyvinyl alcohol, 8 kilograms of glycerin, polyazelaic acid diglycidyl ester-, 5 kilograms of L-malic acid, 2 kilograms of water, 2 kilograms of calcium stearate, and poly 3-hydroxyl Butyrate 8 kg.

[0051] 2. Add starch, polyvinyl alcohol, compound plasticizer, lubricant, and biodegradable polyester into the high-speed mixer, and mix well;

[0052] 3. Put the above-mentioned uniformly mixed raw materials into a granulator for mixing, melting, extruding, cooling, and then pelletizing to obtain biodegradable resin pellets for making films;

[0053] 4. Add the biodegradable resin particles obtained in the above steps to a film blowing machine to make a film.

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 the technical field of agricultural membrane product production methods, in particular to a method for producing a biodegradable membrane preventing from damaging a soil structure. The biodegradable membrane is prepared from starch, polyving akohol, a plasticizer, a lubricating agent and biodegradable polyester serving as raw materials. The method comprises the following steps of: mixing the raw materials according to a ratio; granulating by using a twin-screw extruder; and finally, blowing to form the membrane by using a film blowing machine. The method has the advantages of simple production process, less procedures and high efficiency; and packing materials prepared by the product of the invention are completely degraded into carbon dioxide and water in three months to one year when discarded in nature, and the degradation speed is high, so the biodegradable membrane is an ideal material for replacing the conventional common plastic film and treating white pollution.

Description

Technical field: [0001] The invention relates to the technical field of production methods for film products, in particular to a method for preparing biodegradable films. The film product obtained by this method is biodegradable and will not cause white pollution to the soil. Background technique: [0002] As we all know, white pollution is constantly destroying the environment on which we depend. The world is working hard to eliminate the harm caused by "white pollution" to people. Many fertile fields have reduced production, land desertification, river blockage, and flooding. The shortage of oil resources and rising oil prices have brought many factors of instability to human daily work and life, and seriously affected the environment of the entire society. [0003] For a long time, the agricultural film materials we have used (such as water retention film) are all disposable products made of petroleum synthetic resins, such as polyvinyl chloride, polypropylene, polyethylene and...

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 Patents(China)
IPC IPC(8): C08L29/04C08L3/02C08L67/04C08L67/02C08K5/053C08K3/34C08K5/20C08K5/103C08K5/09C08K5/098B29C55/28
Inventor 祝光富王平彭贤宾吕光春孙立波
Owner 张晓程
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