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Preparation method of plastic raw material beneficial to degradation

A raw material and plastic technology, applied in the field of plastic raw material preparation, can solve the problems of inability to ensure constant extrusion temperature, inconvenient raw material crushing and pre-mixing, and particle screening that cannot be mixed, and achieves easy industrial production, low cost, and protection environmental effects

Inactive Publication Date: 2020-01-07
ANHUI HUANJIA TIANYI RENEWABLE RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The patent No. CN107891541A discloses a preparation method of plastic granule raw material, but the plastic granule raw material is not easy to decompose after preparation, and it is easy to cause "white pollution"; and in the process of preparation, it is not convenient to crush the raw material and Mixing is inconvenient to prepare for subsequent mixing. At the same time, in the process of extrusion granulation, the extrusion temperature cannot be kept constant, resulting in poor extrusion effect. The mixed particles after extrusion cannot be screened, which is beneficial use

Method used

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  • Preparation method of plastic raw material beneficial to degradation
  • Preparation method of plastic raw material beneficial to degradation
  • Preparation method of plastic raw material beneficial to degradation

Examples

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Effect test

Embodiment 1

[0042] see Figure 1-8 Shown, a kind of preparation method that is beneficial to the plastic raw material of degradation comprises the following steps:

[0043] Step 1, in parts by weight, first weigh 60 parts of polyvinyl alcohol, 40 parts of n-butyraldehyde, 60 parts of hydrochloric acid and 0.5 part of sodium bicarbonate with a concentration of 31%; add 620 parts of distilled water into the dissolution kettle, and heat up to 72 ℃, slowly add polyvinyl alcohol under stirring, gradually raise the temperature to 95 ℃, and dissolve in the dissolution kettle at a constant temperature for 4 hours, so that the polyvinyl alcohol becomes an aqueous solution, and after filtering, transfer it to the acetal kettle, cool to 50 ℃ and add normal Butyraldehyde, continue to cool at 23°C, add hydrochloric acid, then keep at 20°C for 1 hour, at 25°C for 1.5 hours, at 30°C for 0.5 hours, at 40°C for 0.5 hours, at 45°C for 0.5 Hours, keep warm at 50°C for 0.5 hours, after the end of heat prese...

Embodiment 2

[0050] see Figure 1-8 Shown, a kind of preparation method that is beneficial to the plastic raw material of degradation comprises the following steps:

[0051] Step 1, in parts by weight, first weigh 40 parts of polyvinyl alcohol, 20 parts of n-butyraldehyde, 40 parts of hydrochloric acid and 0.3 part of sodium bicarbonate with a concentration of 31%; add 580 parts of distilled water into the dissolution kettle, and heat up to 68 ℃, slowly add polyvinyl alcohol under stirring, gradually raise the temperature to 95 ℃, and dissolve in the dissolution kettle at a constant temperature for 4 hours, so that the polyvinyl alcohol becomes an aqueous solution, and after filtering, transfer it to the acetal kettle, cool to 50 ℃ and add normal Butyraldehyde, continue to cool at 13°C, add hydrochloric acid, then keep at 18°C ​​for 1 hour, at 20°C for 1.5 hours, at 25°C for 0.5 hours, at 35°C for 0.5 hours, at 40°C for 0.5 Hours, keep warm at 45°C for 0.5 hours, after the end of the heat...

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Abstract

The invention discloses a preparation method of a plastic raw material beneficial to degradation, wherein the preparation method comprises the steps: sending 30-40 parts by weight of degradable resinpowder, 10-14 parts by weight of glycerol starch ester and 35-42 parts by weight of modified starch into a kneader, and kneading for 15-20 min; then adding the kneaded raw materials into a crushing box of a mixing mill, and then sequentially adding 3-5 parts of a dispersing agent, 2-3 parts of a composite coupling agent, 4-8 parts of a plasticizer, 2-5 parts of an antioxidant, 1-3 parts of a fluorescent whitening agent, 0.5-2 parts of an ultraviolet light absorber and 2.5-8 parts of a filling agent. Starch and polyvinyl alcohol used in the preparation method are easily biodegradable high molecular materials, so elimination of white pollution is facilitated, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of plastic raw material preparation, in particular to a method for preparing plastic raw material which is beneficial to degradation. Background technique [0002] The extensive use of plastics has produced many disposable plastic wastes that cannot be recycled, causing increasingly serious "white pollution", such as groundwater pollution and soil pollution, and the destruction of animal and plant resources, seriously endangering human survival and health. Starch has the characteristics of regeneration, cheapness, easy storage and convenient transportation. Under certain conditions, it can undergo various reactions and derive many derivatives. [0003] The patent No. CN107891541A discloses a preparation method of plastic granule raw material, but the plastic granule raw material is not easy to decompose after preparation, and it is easy to cause "white pollution"; and in the process of preparation, it is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/14C08L3/06C08L3/04C08L23/08C08L23/06C08L91/00C08L97/02C08K5/134B29B7/48B29B9/06B29B13/10
CPCB29B7/484B29B9/06B29B13/10C08L29/14C08L2201/06C08L2205/035C08L3/06C08L3/04C08L23/0869C08L23/06C08L91/00C08L97/02C08K5/1345
Inventor 杨传荣刘新安
Owner ANHUI HUANJIA TIANYI RENEWABLE RESOURCES
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