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

Biodegradable plastic and preparation method thereof

A biodegradable plastic and biodegradable resin technology, applied in the field of plastic products, can solve the problems of limited compatibility and insufficient mechanical properties, and achieve the effects of increased compatibility, good mechanical properties and water resistance

Pending Publication Date: 2022-04-12
宁波嘉信化工实业有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a large number of hydroxyl groups on the surface of the starch used in this invention to make the composite material have a certain degree of water absorption. Blending with hydrophobic degradable resins leads to limited compatibility and insufficient mechanical properties.

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
  • Biodegradable plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for producing a biodegradable plastic is: weighing 40 g of a biodegradable resin in a 70 ° C drying tank and drying 24h and 20 g of potato starch, 1 g diphenylmethane-4,4'-diisocyanate, 1 g butyl Hydroxy anise ether, 1 g of calcium stearate, 3G PEG600, plasticized granulation in three screw extruders, resulting in biodegradable plastic; extrusion temperature is 160 ° C.

[0041] The biodegradable resin is a mass ratio of 2: 1 (adipate-co-benzothylene terephthalate) and a mixture of polylactic acid.

Embodiment 2

[0043] A method of preparing a biodegradable plastic is: weighing 40 g of biodegradable resin in a 70 ° C drying tank for 24 h and 20g modified potato starch, 1 g diphenylmethane-4,4'-diisocyanate, 1g Butylhydroxynediocene ether, 1 g of calcium stearate, 3G PEG600 is plasticized and granulated in three screw extruders to obtain biodegradable plastic; the extrusion temperature is 160 ° C.

[0044] The biodegradable resin is a mass ratio of 2: 1 (adipate-co-benzothylene terephthalate) and a mixture of polylactic acid.

[0045] The preparation method of modified potato starch includes the steps of:

[0046] (1) 20mL 90 wt% ethanol, 30 ml of water, 15 ml ammonia water in 30 ° C to obtain a solution L 1 ; 50 ml of 90 wt% ethanol solution, 1.0 ml of tetraethyl ester at 30 ° C to give a solution L 2 Reduce solution 2 Add to solution L 1 In 30 ° C, the reaction was stirred at 30 ° C for 2 h, 6 ml of tetraeth ester was added, and then the resulting solid was placed at 60 ° C drying tank af...

Embodiment 3

[0050] The preparation method of biodegradable plastic is: 120 g of a biodegradable resin is placed in a 70 ° C drying tank for 24 h and 20g modified potato starch, 5 g of coconut shell fibers, 1 g diphenylmethane-4, 4 ' - Diisocyanate, 1 g butyl hydroxylholder ether, 1 g of calcium stearate, 3G PEG600 is plasticized and granulated in three screw extruders, resulting in biodegradable plastic; extrusion temperature is 160 ° C.

[0051] The biodegradable resin is a mass ratio of 2: 1 (adipate-co-benzothylene terephthalate) and a mixture of polylactic acid.

[0052] The preparation method of modified potato starch includes the steps of:

[0053] (1) 20mL 90 wt% ethanol, 30 ml of water, 15 ml ammonia water in 30 ° C to obtain a solution L 1 ; 50 ml of 90 wt% ethanol solution, 1.0 ml of tetraethyl ester at 30 ° C to give a solution L 2 Reduce solution 2 Add to solution L 1 In 30 ° C, the reaction was stirred at 30 ° C for 2 h, 6 ml of tetraeth ester was added, and then the resulting so...

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses biodegradable plastic and a preparation method thereof. The biodegradable plastic is prepared from the following components: 30 to 50 parts of biodegradable resin, 20 to 40 parts of starch, 4 to 8 parts of modified coconut fiber, 1.0 to 1.5 parts of cross-linking agent, 0.8 to 1.5 parts of antioxidant, 0.5 to 1.5 parts of lubricant and 2 to 5 parts of plasticizer. The biodegradable plastic prepared by the invention has good mechanical properties and water resistance, can prevent water evaporation, and can be degraded by microorganisms in the environment.

Description

Technical field [0001] The present invention relates to the field of plastic articles, in particular, to a biodegradable plastic and a preparation method thereof. Background technique [0002] The plastic is a polymer compound which is polymerized by a monomer as a raw material, which is medium in which a polymer compound is polymerized by adding polymerization or polycondensation, and is medium, and between fibers and rubber, by synthetic resin and filler, plasticizer, stabilizer, lubrication The additives such as agents and colors are composed. [0003] Plastics due to its various scenarios and excellent cost performance, flexible design into a variety of functional packages, unique traits, extensive application, difficult to alternative, lasting vitality, several plastics commonly used, such as poly Ethylene, polypropylene, polystyrene, polyvinyl chloride, and polyphenylene glycol ester, etc. [0004] Compared with ordinary materials, biodegradable materials have a wide source...

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
IPC IPC(8): C08L67/02C08L67/04C08L3/02C08L97/02C08K9/06C08K9/04C08K7/26
Inventor 魏旭东丁向丽
Owner 宁波嘉信化工实业有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com