Degradable environment-friendly shopping bag

Abstract

The invention discloses a degradable environment-friendly shopping bag. The shopping bag is a T-shirt bag or a waistcoat bag, 25-35 microns in thickness, 30-50 cm in length, and 20-30 cm in width, the rim width of the bag is 10-16 cm, and the length of the handle of the bag is 12-16 cm. The shopping bag comprises the following ingredients in parts by weight: 100 parts of vegetable starch, 1-2 parts of stearic acid, 1.5-2.5 parts of calcium stearate, 1.5-2.5 parts of a titanate coupling agent, 4-6 parts of heavy calcium carbonate powder, 2-4 parts of liquid paraffin, 14-16 parts of ethylene-methyl acrylate copolymer, 15-17 parts of low density polyethylene, 6-8 parts of linear polyethylene, and 13-15 parts of high density polyethylene.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a degradable environmental protection shopping bag. Background technique [0002] The shopping bags provided by supermarkets, shopping malls, bazaars, etc. are basically made of polystyrene, polyethylene, polypropylene and other polymer materials. Because they cannot be degraded, they cause serious damage to the ecological environment and threaten the survival of human beings. Space, people call it "white pollution". To this end, the General Office of the State Council of China issued the "Notice on Restricting the Production and Sale of Plastic Shopping Bags". The notice pointed out that in view of the fact that shopping bags have become the main source of "white pollution", people's governments, ministries and commissions in various places should prohibit the production, sale and use of ultra-thin plastic shopping bags in the future, and will implement a system of ...

AI Technical Summary

Problems solved by technology

However, the current degradation products always have one or another deficiency

At present, it is more common to use petroleum-based plastic polyolefin materials as carriers to prepare degradable plastics, or to use polylactic acid polymers prepared from natural substances to improve the biodegradability of degradable plastics. However, the heat resistance of processed materials Insufficient performance, it is difficult to meet the requirements of shopping bags, and the cost of polylactic acid is relatively high

[0004] For example, the patent application number 200710190063.8 uses the blending of degradable polymer materials and natural polymer materials in order to solve the contradiction between performance and cost. Among them, the content of polylactic acid and thermoplastic starch is basically 1:1. Although the solution has improved the performance of the product, it is still not ideal and the cost is still high