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Starch-based biodegradable environment-friendly plastic

A technology for degrading plastic and starch, applied in the field of environmentally friendly plastic products, can solve the problems of white pollution and trouble of plastic products, and achieve the effect of low cost, wide distribution, and improved value-added transformation.

Inactive Publication Date: 2011-08-17
梁雄辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, a large number of discarded plastic products have brought "white pollution" troubles because of their non-degradability

Method used

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  • Starch-based biodegradable environment-friendly plastic
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  • Starch-based biodegradable environment-friendly plastic

Examples

Experimental program
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Embodiment Construction

[0016] The invention aims to provide a biostarch degradable plastic masterbatch. The masterbatch is composed of the following components by weight ratio: 70-80% of refined starch, 7-10% of toughening agent, 0.5%-2% of initiator, 4%-7% of modifier, and 1% of plasticizer -3%, lubricating processing aid 3% -6%.

[0017] Among them, the toughening agent is ethylene-vinyl acetate copolymer or POE or M-LLDPE; the initiator is dicumyl peroxide; the modifier is a mixture of stearic acid and maleic anhydride; the plasticizer is ethylene Glycol or glycerin or sorbitol; the lubricating processing aid is white oil or PE wax.

[0018] The content of stearic acid in the modifier accounts for 3%-5% of the total content, and the content of maleic anhydride accounts for 1-2% of the total content.

[0019] The production method of aforementioned biological starch degradable plastic masterbatch, it comprises the following steps:

[0020] Starch refinement process, starch high-speed mixing pro...

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Abstract

The invention discloses starch-based biodegradable environment-friendly plastic. The plastic is prepared from a starch biodegradable plastic master batch, and the master batch consists of the following components in percentage by weight: 70 to 80 percent of refined starch, 7 to 10 percent of toughening agent, 0.5 to 2 percent of initiator, 4 to 7 percent of modifier, 1 to 3 percent of plasticizer, and 3 to 6 percent of lubricating and processing auxiliary agent. The plastic has low cost and wide application. The invention also provides a production method for the master batch.

Description

technical field [0001] The invention belongs to an environment-friendly plastic product, in particular to a starch-based biodegradable environment-friendly plastic. Background technique [0002] Plastic products are being widely used in various fields of people's production and life. Plastics are favored by people for their light weight, waterproof, corrosion resistance, and high strength. [0003] However, a large number of discarded plastic products have brought about "white pollution" because of their non-degradability. For this reason, since the 1970s, people have started to research and develop degradable plastics. As a natural polymer compound, starch has a wide range of sources, a wide variety, low cost, and can be completely degraded in various natural environments, and finally decomposed into CO2 and H2O, without causing any pollution to the environment. Therefore, starch-based degradable plastics It has become the most researched and developed type of biodegradab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L23/08C08L31/04C08K5/09C08K5/1539C08K5/053C08L23/06C08L23/12C08L25/06B29B9/06
Inventor 梁雄辉
Owner 梁雄辉
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