Preparation method of high-temperature-resistant degradable plastic bowl

Abstract

The invention mainly relates to the technical field of processing of plastic packing supplies, and discloses a preparation method of a high-temperature-resistant degradable plastic bowl. The preparation method comprises the following steps of mixing main materials, adding auxiliary materials, carrying out high-temperature resistance treatment, carrying out granulation and carrying out injection molding. The preparation method for the high-temperature-resistant degradable plastic bowl is simple, and convenient for industrialized preparation, no harmful ingredients are added in the preparation process, no harmful ingredients are generated in the preparation and use process, the prepared plastic bowl is strong in heat resistance, does not soften and deform during heating, can realize secondary use and does not emit harmful ingredients, thus ensuring the health of consumers; and the waste plastic bowl can be quickly degraded and does not generate any residue, so that zero pollution to theenvironment can be realized, being more green and environment-friendly.

Description

technical field [0001] The invention mainly relates to the technical field of processing plastic packaging products, in particular to a method for preparing a high-temperature-resistant degradable plastic bowl. Background technique [0002] Packaging is an indispensable part of products. Whether it is daily necessities or food, it will be packaged, and it is indispensable to use plastic products for packaging to prevent the products from being affected by external moisture. Random discarding of the produced plastic products will also cause great harm to the environment; especially when packaging food, many times when packaging ready-to-eat food, plastic bowls are used. After buying home from the market, they are usually reheated Then eat it, but the traditional plastic bowl will emit harmful ingredients during the heating process, and a little improper control of the heating time and temperature will cause the deformation of the plastic bowl, which not only affects the use o...

AI Technical Summary

Problems solved by technology

[0002] Packaging is an indispensable part of products. Whether it is daily necessities or food, it will be packaged, and it is indispensable to use plastic products for packaging to prevent the products from being affected by external moisture. Random discarding of the produced plastic products will also cause great harm to the environment; especially when packaging food, many times when packaging ready-to-eat food, plastic bowls are used. After buying home from the market, they are usually reheated Then eat it, but the traditional plastic bowl will emit harmful ingredients during the heating process, and a little improper control of the heating time and temperature will cause the deformation of the plastic bowl, which not only affects the use of the plastic bowl, but more seriously, it will have adverse effects on human health. It is very harmful; and the traditional plastic bowls are used for one-time use, it is difficult to use them again after deformation, and it will cause great pollution to the environment after being discarded at will. Therefore, it is necessary to improve the biodegradability of plastic bowls

[0003] The existing patent document CN109337214A discloses a high-strength degradable plastic bowl and its preparation method, specifically disclosing that the raw materials are polypropylene, vegetable starch, cellulose xanthate, solubilizer, polytrimethylene terephthalate, Plastic bowls made of titanium dioxide, sodium stearate, calcium carbonate, and silicone. Although the plastic bowls prepared in the patent documents have certain strength and direct degradation performance, they have poor heat resistance and are easily deformed during heating. The plastic bowl in the document cannot be completely degraded after degradation, and there will be residues, and the residue will take a long time to degrade, and it will also cause certain pollution to the environment. Therefore, the preparation method of the plastic bowl should be improved so that the plastic bowl can be used. Reuse, reduce the use of plastic bowls, and discarded plastic bowls can be quickly and completely degraded to avoid pollution to the environment

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