Environment-friendly packaging bag and preparation method thereof

Abstract

The invention discloses an environment-friendly packaging bag and a preparation method thereof. The environment-friendly packaging bag is prepared from, by weight, 10-60 parts of polyethylene, 40-100 parts of starch, 20-80 parts of reed pulp, 70-80 parts of aluminum oxide, 10-50 parts of zircon sand, 20-100 parts of methyl ethyl ketoxime, 30-90 parts of blanc fixe, 20-50 parts of bisphenol A epoxy acrylate and 10-80 parts of fibrous brucite. The preparation method of the environment-friendly packaging bag includes the steps that polyethylene, starch, reed pulp, aluminum oxide, zircon sand, methyl ethyl ketone, blanc fixe, bisphenol A epoxy acrylate and fibrous brucite are mixed to be uniform through a high-speed mixer, wherein the mixing time ranges from 60 min to 100 min, and the rotating speed ranges from 300 r / min to 350 r / min; then the mixture is subjected to blow molding through a blow molding machine. After the environment-friendly packaging bag is buried in soil for eight months, the degradation rate reaches up to 96%, and it is shown that the packaging bag can be completely degraded basically.

Description

technical field [0001] The invention relates to the field of packaging bags, in particular to an environmentally friendly packaging bag and a preparation method thereof. Background technique [0002] Packaging bags refer to bags used to pack various supplies. Products made of polymer plastic materials that are common in daily life will take hundreds of years to be completely decomposed, and will exist on the earth for hundreds of years. According to the actual figures, 80% of the used plastic bags are finally transported to the landfill area for disposal like general garbage, and only 7% of the plastics are recycled. [0003] The Chinese patent application with application number CN200710125478.7 discloses an easy-to-tear environmentally friendly packaging bag that is convenient for recycling. The packaging bag includes a bag body 1, and there is a tear crease 3 near the pre-opening end 2 of the bag body 1. One end 4 of the tear crease 3 has a tear gap 5, the tear gap 5 i...

AI Technical Summary

Problems solved by technology

This easy-to-tear environmentally friendly packaging bag can solve two common problems of various small packaging bags at present. One is that the opening of the packaging bag is not easy to tear, and the other is that the torn opening part and the used packaging bag are not easy to recycle, causing environmental pollution.

However, once the packaging bag is thrown away, it will still pollute the environment

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