Plastic packaging bag and method for preparing same

Abstract

The invention relates to a plastic packaging bag and a method for preparing the same, and mainly relates to the technical field of plastic products. The plastic packaging bag comprises, by weight, 10-20 parts of low-density polyethylene, 8-15 parts of high-density polyethylene, 85-100 parts of starch, 24-45 parts of plant fibers, 5-12 parts of diatomaceous earth, 0.5-3 parts of coupling agents, 0.1-1.5 parts of defoaming agents, 0.5-2 parts of antioxidants and 0.5-2.5 parts of inorganic antibacterial agents. The plastic packaging bag and the method have the advantages that the plastic packaging bag is mainly made of the starch and the plant fibers, an appropriate quantity of additives are added into the starch and the plant fibers, accordingly, the high toughness of the plastic packaging bag can be guaranteed, excellent degradation effects can be realized, and influence on ambient environments can be reduced; the inorganic antibacterial agents are added into raw materials, and accordingly effects of inhibiting bacteria and fungi can be realized; technologies for processing the plastic packaging bag are simple and convenient and have low requirements on mechanical equipment, and accordingly the plastic packaging bag and the method are suitable for various large, medium and small enterprises and low in cost, and have excellent economic benefits.

Description

technical field [0001] The invention mainly relates to the technical field of plastic products, in particular to a plastic packaging bag and a preparation method thereof. Background technique [0002] Plastic bags are an indispensable item in people's daily life. They are often used to hold other items. They are widely used because of their cheapness, light weight, large capacity, and easy storage. Compared with paper packaging bags, plastic flexible packaging has outstanding advantages such as moisture resistance and barrier properties, and is low in cost; therefore, plastic packaging bags have become an indispensable necessity in daily life and are also consumables. A large amount of them are consumed every year. plastic bag. Existing plastic packaging bags are basically made of polymer materials such as polyethylene and polypropylene. Such plastic packaging bags provide convenience, but because they cannot be degraded, they are used in large quantities and are not proper...

AI Technical Summary

Problems solved by technology

Existing plastic packaging bags are basically made of polymer materials such as polyethylene and polypropylene. Such plastic packaging bags provide convenience, but because they cannot be degraded, they are used in large quantities and are not properly recycled, resulting in A large amount of rubbish accumulates, causing damage to the ecological environment and becoming the main source of "white pollution"

Images