Master batch capable of fully and biologically degrading plastic film and preparation method thereof

A biodegradable plastic and masterbatch technology, applied in the field of polymer film, can solve the problems of difficult promotion and high production cost, and achieve the effect of eliminating white pollution, low unit cost and reducing content

Inactive Publication Date: 2012-07-25
浙江天禾生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high unit production cost of this kind of masterbatch (5-6 US dollars / kg) and non-fast-growing resources, it is difficult to promote in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: (1) Mix 100 parts of starch, 150 parts of water, and 0.25 parts of anticaking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it, and the refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary deh...

Embodiment 2

[0032]Example 2: (1) Mix 100 parts of starch, 150 parts of water, and 0.5 parts of anti-caking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it. The refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary dehydrat...

Embodiment 3

[0033] Example 3: (1) Mix 100 parts of starch, 180 parts of water, and 1 part of anticaking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it, and the refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary dehydra...

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PUM

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Abstract

The invention discloses a master batch capable of fully and biologically degrading a plastic film and a preparation method thereof, and belongs to the field of high molecular films. The formula of the master batch comprises the following materials in parts by weight: 100 parts of starch, 2-9 parts of coupling agent, 8-18 parts of dispersing agent, 8-25 parts of polycyclolactone, 1-50 parts of polylactic acid, 8-15 parts of poly (hydroxybutyrate-hydroxyvalerate) (PHBV), 10-25 parts of plasticizer, 0.15-1.0 part of anti-tackiness agent, 0.15-1.2 parts of pro-oxidant and 1-15 parts of chemical precipitation promoter. The preparation method of the master batch comprises the three steps of: thinning the starch; mixing; and forming. The product provided by the invention has the advantages of high starch content, being a fast-growing and renewable resource, rich resource, low unit cost, high substitutability, obvious economic benefit and ecological benefit and capabilities of reducing the content of polycyclolactone, increasing polylactic acid and poly (hydroxybutyrate-hydroxyvalerate) (PHBV), improving product performance and meanwhile reducing cost.

Description

technical field [0001] The invention belongs to the technical field of polymer films, and in particular relates to a masterbatch formula of fully biodegradable plastic films and a preparation method thereof. Background technique [0002] Known degradable plastic materials contain polyethylene, polypropylene and other polyolefin components, so they are not completely degraded after being discarded, and the problem of "white pollution" has not been completely solved. A large amount of plastic waste in life has caused great pressure on the environment . [0003] In recent years, "Introduction to the Characteristics of Polycaprolactone and Its Application Prospect", "Research on the Production Technology of Bio-based Degradable Plastic Polylactic Acid", "Proceedings of the Third Special Committee on Degradable Plastics of China Plastics Association", "Microbiology Synthesis of Polyhydroxyalkanoate Polymer Masterbatch", "Biodegradable Plastics and Bio-Based Plastics" and other l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L67/04C08J3/22C08B31/00
Inventor 裘陆军裘煜毕道成张陆祥宓可均杨文斌
Owner 浙江天禾生态科技有限公司
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