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Biological starch-based (sheet) degradation master batch

A bio-starch and masterbatch technology, applied in the field of plastic masterbatch, can solve the problems of lack of high-tech transformation value-added, low profit and low profit in starch processing

Inactive Publication Date: 2010-12-15
梁雄辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional starch processing industry has low profits. Due to years of competition, the starch processing industry has made little profit. Starch processing lacks high-tech transformation and value-added, which reduces the income of farmers to a certain extent.

Method used

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  • Biological starch-based (sheet) degradation master batch
  • Biological starch-based (sheet) degradation master batch
  • Biological starch-based (sheet) degradation master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Starch refining process, wherein, in the starch refining process, starch and stearic acid are stirred at a low speed for 2 minutes (minutes) in a high-mixing pot at normal temperature, and the rotating speed is adjusted to a high speed stirring for 3 minutes (minutes), and the rotating speed is adjusted to a low speed and then discharged. Transfer the mixed material into the refiner, classification speed: 1000r / min (rotation per minute), refine to 1500 mesh;

[0026] Starch high-speed mixing process; in which, firstly, the materials are accurately weighed, glycerin and ethylene glycol are weighed and mixed evenly, and the starch is added to the high-mixer, and then plasticizer is added to the high-mixer, and the high-mixer is started. Run at high speed for 5 minutes (minutes), switch to high speed operation for 5 minutes (minutes), and then switch to medium speed operation; slowly add maleic anhydride into the high-mixing pot, stir at medium speed for 2 to 3 minutes (min...

Embodiment 2

[0032] Basic plastic resins include: high-density polyethylene (HDPE), polypropylene (PP), polystyrene (PS); among them, by weight, 30% of biological starch degradation masterbatch, 68% of basic plastic resin, and 2% of self-oxidizing agent.

Embodiment 3

[0034] The basic plastic resins are: high-density polyethylene (HDPE), polypropylene (PP), polystyrene (PS); among them, by weight, the biological starch degradation masterbatch is 80%, the basic plastic resin is 18%, and the self-oxidizing agent is 2%.

[0035] In the foregoing embodiments, the set temperature of the extruder is divided into sections, which are respectively:

[0036]

[0037]

[0038] Among them, the main engine speed of the extruder is 200-260r / min, the feeding speed is 10-15Hz, the cutting speed is 20-30Hz, the melt pressure is 1.5-3.0; vacuum one: -0.05mpa; vacuum two: -0.08mpa.

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Abstract

The invention discloses a biological starch degradation plastic master batch, comprising the following components by weight percent: 70%-80% of refined starch, 7%-10% of flexibilizer, 0.5%-2% of initiator, 4%-7% of modifier, 1%-3% of plasticizer and 3%-6% of lubrication processing aid. The invention further discloses a preparation method thereof.

Description

technical field [0001] The invention relates to a plastic master batch, in particular to a biological starch-based degradable master batch. Background technique [0002] Biological (potato, corn) starch-degradable plastic sheet type has the same physical and mechanical properties and other special properties as ordinary plastic products; and the process is simple and the cost is low. At the same time, it can be degraded in the natural environment, so as to reduce environmental pollution and alleviate environmental contradictions, and meet the requirements of reduction, recycling, and harmlessness in the Solid Waste Pollution Prevention and Control Law. [0003] With the increasing scarcity of petroleum resources, polymers such as plastics are mainly derived from petroleum, and petroleum is a non-renewable resource that has gradually become exhausted. The biological (potato corn) starch-degradable plastic sheet type with renewable resources such as starch as the main raw mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/06C08L23/08C08B31/04C08J3/22C08L23/06C08L23/12C08L25/06B29C47/92B29C48/92
Inventor 梁雄辉
Owner 梁雄辉
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