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Degradable plastic and preparation method thereof

A technology for degrading plastics and degrading resins, applied in the field of degradable plastics and their preparation, can solve problems such as insufficient degradation of plastics, and achieve the effects of increasing surface/volume ratio, good biodegradability, and complete degradation.

Inactive Publication Date: 2013-01-16
郭俊才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a degradable plastic and its preparation method, which overcomes the problem of insufficient plastic degradation

Method used

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  • Degradable plastic and preparation method thereof

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Embodiment

[0031] Weigh the corresponding raw materials according to the following weight percentages:

[0032] Superfine starch: 30;

[0033] Superfine vegetable powder: 15;

[0034] Sorbitol: 5 (plasticizer);

[0035] Glycerin: 3 (plasticizer);

[0036] EAA ethylene-acrylic acid copolymer: 18 (synthetic degradable resin);

[0037] Soybean oil: 1 (compatibilizer);

[0038] White oil: 0.5 (compatibilizer);

[0039] Stearic acid: 0.6 (pro-oxidant);

[0040] Calcium stearate: 0.7 (lubricant);

[0041] Aluminate coupling agent: 1.47 (compatibilizer);

[0042] Oleic acid: 1.0 (pro-oxidant);

[0043] Iron diethyldithiocarbamate: 0.06 (photosensitizer);

[0044] Polyethylene wax: 0.8 (lubricant);

[0045] Manganese acetylacetonate: 0.8 (heat sensitive agent);

[0046] 2,6-di-tert-4-methyl-p-cresol: 0.07 (degradation control agent);

[0047] Linear low density polyethylene: 7 (synthetic resin);

[0048] HDPE: 8 (synthetic resin);

[0049] Low-density polyethylene: 7 (synthetic res...

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Abstract

The invention discloses degradable plastic and a preparation method thereof. The degradable plastic is made from ultrafine starch, ultrafine plant powder, synthetic degradable resin, synthetic resin, plasticizer, pro-oxidant, compatibilizer, lubricant, photosensitizer, heat sensitizer, and degradation control agent. The preparation method of the degradable plastic includes the steps of heating up a container to 70-80 DEG C; adding the ultrafine starch and the ultrafine plant powder into the container, respectively adding the plasticizer, the pro-oxidant, the compatibilizer, the degradation control agent and the synthetic resin, and mixing well; adding the synthetic into another container, sequentially adding the photosensitizer, the heat sensitizer and the lubricant at room temperature, and mixing well; and mixing well the materials and holding the temperature at 100-140 DEG C for each zone to obtain degradable plastic particles. The degradable plastic made by the preparation method has the advantages of thoroughness in degradation, fast degradation, low production cost and the like.

Description

technical field [0001] The invention relates to a degradable plastic and a preparation method thereof. Background technique [0002] Under normal natural environmental conditions, the molecular structure of plastics can remain unchanged for two hundred years. With the increase of plastic consumption year by year, especially the large-scale use of disposable plastic products, it has caused great harm to the environment. [0003] At present, there are methods to solve plastic pollution, such as recycling, incineration, landfill and the use of degradable plastics. Incineration will produce a large amount of smoke and toxic gases, which will cause secondary pollution to the atmosphere. Plastic waste after landfill cannot be degraded, and land occupation will bring harm to environmental soil and groundwater. Recycling requires a lot of manpower and material resources, and the recycling rate is very low, and it cannot be recycled indefinitely, and it still pollutes the environmen...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L97/02C08L67/04C08L23/08C08L23/06C08K5/00C08K5/09C08K5/01C08K5/098C08K5/372C08K5/07C08K5/13B29B9/06
Inventor 郭俊才范瑞光李晋岩
Owner 郭俊才