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Fully bio-degradable plastic master batch and preparing process thereof

A technology for biodegradable plastic and plastic masterbatch, applied in the field of biodegradable plastic masterbatch and its preparation, can solve the problems of high production cost and difficulty in promotion, and achieve the effects of low unit cost, good replaceability and abundant resources

Inactive Publication Date: 2004-09-01
丁少忠
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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 (6-8 US dollars / kg), and it is a non-fast-growing resource, it is difficult to promote it in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: (1) 100 parts of starch, 200 parts of water, 0.3 parts of anticaking agent were mixed, stirred into a slurry, and poured into SK80-2A sand mill disperser for refinement, and the refinement time was 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60℃; (2) Dehydrate the preliminarily refined starch slurry through HDZC-006-1 ultrafiltration membrane unit; (3) Dehydrate the starch and glycerin after the initial dehydration Or 100 parts of corn oil are mixed and stirred into a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min to the starch particle size <1μm, and the refinement temperature is controlled at 50-70℃; 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the starch water content is less than 0.5%; (5) Put the secondary dehydrated starch in a GKH1250-N centrifuge for pro...

Embodiment 2

[0035]Example 2: (1) Mix 100 parts of starch, 200 parts of water, and 0.2 parts of anticaking agent into a slurry, then pour it into SK80-2A sand mill dispersing machine for refinement, and the refinement time is 20-30min to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60℃; (2) Dehydrate the preliminarily refined starch slurry through HDZC-006-1 ultrafiltration membrane unit; (3) Dehydrate the starch and glycerin after the initial dehydration Or 100 parts of corn oil are mixed and stirred into a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min to the starch particle size <1μm, and the refinement temperature is controlled at 50-70℃; 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the starch water content is less than 0.5%; (5) Put the secondary dehydrated starch in a GKH1250-N centrifuge for proper sepa...

Embodiment 3

[0036] Example 3: (1) 100 parts of starch, 200 parts of water, 0.9 parts of anticaking agent were mixed, stirred into a slurry, and poured into SK80-2A sand mill disperser for refinement, and the refinement time was 20-30min to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60℃; (2) Dehydrate the preliminarily refined starch slurry through HDZC-006-1 ultrafiltration membrane unit; (3) Dehydrate the starch and glycerin after the initial dehydration Or 100 parts of corn oil are mixed and stirred into a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min to the starch particle size <1μm, and the refinement temperature is controlled at 50-70℃; 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the starch water content is less than 0.5%; (5) Put the secondary dehydrated starch in a GKH1250-N centrifuge for proper s...

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Abstract

The invention provides a complete biodegradable plastic masterbatch and method for making same, wherein the plastic masterbatch comprises starch, coupling agent, dispersing agent, poly cyclic lactone, plasticity agent, and oxidation agent, while the preparation process comprises the steps of, (1) fining of starch, dewatering, (2) mixed melting, (3) extrusion forming.

Description

Technical field [0001] The invention relates to a biodegradable plastic master batch and a preparation method thereof, in particular to a completely biodegradable plastic master batch and a preparation method thereof. Background technique [0002] Various degradable plastic materials are known on the market, such as: photodegradation, photobiodegradation, photooxidation biodegradation, high starch content biodegradation, high calcium carbonate photooxidation degradation plastic materials, etc. However, because these plastic materials contain more or less polyolefin components such as polyethylene, polypropylene, polystyrene or polyvinyl chloride, the degradation is not complete after being discarded, and the problem of "white pollution" has not been completely solved. [0003] In recent years, "Introduction to the characteristics of polycaprolactone and its application prospects" (Chinese Academy of Sciences Xinjiang Branch, Academic Report of the Fourth Xinjiang Academic Annual ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08L3/02C08L67/04
CPCC08J3/226C08L2201/06C08B31/006C08B31/003C08L3/02C08L3/04C08J2403/02C08L67/04C08L2666/18
Inventor 丁少忠
Owner 丁少忠
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