High-toughness decomposable environment-friendly plastic packaging bag

Abstract

The invention discloses a high-toughness decomposable environment-friendly plastic packaging bag. The high-toughness decomposable environment-friendly plastic packaging bag is prepared from the following raw materials in parts by weight: 40-65 parts of polyolefin plastic, 35-45 parts of corn straw fibers, 5-8 parts of chitosan, 8-10 parts of fresh folium mori, 4-6 parts of kudzu stems and leaves,45-65 parts of polyhydroxybutyrate, 22-35 parts of polyvinyl butyral, 13-20 parts of polyethylene, 6-11 parts of lignin, 5-12 parts of cotton and linen fibers, 6-11 parts of montmorillonite, 1-3 partsof a stabilizer, 2-4 parts of a coupling agent, 1-5 parts of a plasticizer and 0.1-0.2 part of polyamide wax micropowder. The compound plastic packaging bag disclosed by the invention has good strength and toughness, and meanwhile, is good in optical performance and easy for oxydative degradation.

Description

technical field [0001] The invention belongs to the field of plastic packaging, in particular to a high toughness decomposable environment-friendly plastic packaging bag. Background technique [0002] Plastic packaging bag is a kind of packaging bag that uses plastic as raw material to produce various supplies in daily life, and is widely used in daily life and industrial production. [0003] Plastic packaging bags are consumables in daily life, and a large amount of plastic packaging bags are consumed every year. While plastic packaging bags provide convenience, due to excessive use and inadequate recycling, they also cause serious waste of energy resources and environmental pollution. In particular, ultra-thin plastic packaging bags are easily damaged, and most of them are discarded at will, becoming the main source of "white pollution". More and more countries and regions have restricted the production, sale and use of plastic packaging bags. [0004] At present, altho...

AI Technical Summary

Problems solved by technology

[0004] At present, although there are various degradable plastic packaging bags on the market, tests have shown that most degradable plastic packaging bags generally begin to become thinner, lose weight, and lose strength after being exposed to the environment for 3 months, and gradually break into pieces. If these fragments are buried in garbage or soil, the degradation effect is not obvious

In addition, some additives in degradable plastics will change some characteristics of plastics, such as increased air permeability and moisture permeability, poor tensile strength, etc., which is not conducive to the promotion and application of degradable plastic packaging bags