Environment-friendly plastic packaging bag

Abstract

The invention discloses a preparation method of an environment-friendly plastic packaging bag. The packaging bag comprises the following components in parts by weight: 100 parts of low-density polyethylene resin, 25-35 parts of linear polyethylene resin, 14-16 parts of ethylene vinyl acetate resin, 2-4 parts of a titanate coupling agent, 3-5 parts of 20% calcium carbonate master batch and 24-28 parts of environment-friendly master batch, wherein the environment-friendly master batch consists of the following components: 40-44% of activated manganese oxide, 1.0-1.4% of a stearic acid coupling agent, 3-5% of paraffin, 4-6% of oxygenated oil, 6-8% of lithium stearate and the balance of polyethylene; the preparation method comprises the following steps: sufficiently and uniformly mixing the materials by using a high-speed mixer, wherein the mixing time is 40-50 minutes, and the rotating speed of the high-speed mixer is 240-260 rpm; carrying out blow molding on the uniformly mixed materials by using a blowing machine to form the environment-friendly plastic packaging bag.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to an environmentally friendly plastic packaging bag. Background technique [0002] At present, environmental pollution is a problem that all countries in the world attach great importance to, especially the plastic waste that is not perishable and is extensive. Most countries still adopt incineration and volume reduction treatment. However, a large amount of harmful dioxins will be discharged during this treatment process. And pollute the environment, thus forcing people to solve it. Dioxin is composed of chlorobenzene compounds such as dichlorotoluene, dichloroethylbenzene and polychlorinated biphenyls. Its toxicity is 1000 times that of potassium cyanide. It is characterized by the presence of chlorine and benzene organic compounds. Synthesis starts at 200°C and above, and it can be cracked after staying at 850°C for 2 seconds. When the flue gas temperature drops, di...

AI Technical Summary

Problems solved by technology

As we all know, environmental treatment equipment is expensive, occupies land and space, and requires frequent repairs and maintenance, so it takes a lot of manpower and material resources, and the treatment effect is not very ideal

In addition, although the above-mentioned treatment method can achieve certain effects, it does not fundamentally eliminate the generation of dioxins when waste plastics are burned. To prevent the generation of dioxins when waste plastics are burned, it is a treatment method that does not remove the cost