Preparation method of high-strength biodegradable plastic packaging bag

Abstract

The invention mainly relates to the technical field of packaging material processing, and discloses a preparation method of a high-strength biodegradable plastic packaging bag, which comprises the following steps: resin mixing, strengthening treatment, degradation treatment, tape casting, and cutting and hot pressing. According to the preparation method of a high-strength biodegradable plastic packaging bag, the raw materials come from a variety of sources, the method is simple, and a prepared biodegradable plastic packaging bag is high in strength, can be used for the second time, meets the packaging requirements of different commodities, can be quickly biodegraded without causing fragment residues after being discarded, has a better protection effect on the environment, obviously reducesthe pressure of white pollution on the environment, and is more environment-friendly.

Description

technical field [0001] The invention mainly relates to the technical field of packaging material processing, in particular to a preparation method of a high-strength biodegradable plastic packaging bag. Background technique [0002] With the gradual improvement of people's living standards, a wide range of products are more and more in line with people's daily needs, but the wide range of products are supported by packaging, whether it is food or daily necessities, in order to prevent the products from absorbing water and moisture, almost all products will Plastic packaging bags are used for packaging, but after people buy goods, the external plastic packaging bags are directly thrown away. More and more plastic packaging bags will cause white pollution, which will put a lot of pressure on the environment and make the environment Loss of self-cleaning ability, so degradable plastic packaging bags should be used to package goods, but currently there are few degradable plastic...

AI Technical Summary

Problems solved by technology

[0002] With the gradual improvement of people's living standards, a wide range of products are more and more in line with people's daily needs, but the wide range of products are supported by packaging, whether it is food or daily necessities, in order to prevent the products from absorbing water and moisture, almost all products will Plastic packaging bags are used for packaging, but after people buy goods, the external plastic packaging bags are directly thrown away. More and more plastic packaging bags will cause white pollution, which will put a lot of pressure on the environment and make the environment Loss of self-cleaning ability, so degradable plastic packaging bags should be used to package goods, but currently there are few degradable plastic packaging bags, let alone popularization, and a small amount of degradable plastic packaging bags are not strong enough and can only be used for For one-time use, many of them cannot meet the requirements of packaged goods, so the strength of degradable plastic packaging bags should be improved, and the preparation process of degradable plastic packaging bags should be improved

[0003] The existing patent document CN107488293A discloses a bio-based fully degradable plastic food packaging bag and its preparation method, specifically disclosing that the raw material components are tax-increased modified starch, plastic resin, oxidative degradation additive, biodegradation aid and heat stabilizer, Among them, the oxidative degradation additives, biodegradation aids and heat stabilizers are all food-safe; although the packaging bags prepared in the patent documents have improved the biodegradation effect to a certain extent, the strength of the plastic packaging bags is low. Therefore, it is necessary to increase the strength of biodegradable plastic packaging bags to meet the packaging needs of different commodities, facilitate the further promotion and use of degradable plastic packaging bags, and reduce environmental pollution.

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