Bio-based degradable meal box material and preparation method thereof

Abstract

The invention discloses a bio-based degradable meal box material and a preparation method thereof. The bio-based degradable meal box material is prepared from the following raw materials: straw powder, a hydrophobic auxiliary agent, a lubricant, a reactive auxiliary agent, a biodegradable high-molecular compound, an antioxidant, a grafting treatment auxiliary agent, a toughening compatible auxiliary agent and an antibacterial agent. The bio-based degradable meal box material disclosed by the invention can be effectively biodegraded, can be degraded by 72.3% within 60 days and can be completelydegraded within 144 days, and white pollution can be effectively solved. The straw powder is subjected to gelation, plasticization, grafting, oxidation resistance, coupling and antibacterial treatment to obtain the degradable meal box material with excellent performance, the problems that an existing straw powder bio-based degradable material is large in water absorption and moisture absorption and prone to powder removal can be solved, and the comprehensive performance is improved; the material has good antibacterial performance, the antibacterial performance is improved by adding an antibacterial agent into the material, and the modified chitosan has the best antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of degradable lunch box materials, in particular to a bio-based degradable lunch box material and a preparation method thereof. Background technique [0002] At present, most of the straw produced by my country's agriculture every year is disposed of by incineration, which not only destroys the environment, but also wastes resources; realizing the industrialization of straw will surely become a new industry and a new economy in my country. The growth point, the fruits and stalks of crops, will surely become the two major achievements of agricultural planting using solar energy with the development of economy and society. At present, the comprehensive utilization of crop straws in my country mainly has the following methods: one is to return them directly to the field as land fertilizer (15%); the other is to use them as feed (16%); the third is to use them for new energy sources such as power generation and g...

AI Technical Summary

Problems solved by technology

However, the hydroxyl groups in straw powder are hydrophilic and have poor compatibility with biodegradable polymer compounds, which can easily lead to water and moisture absorption of composite materials, material off-grid, large internal fine gaps, and antibacterial properties. The performance cannot meet the requirements; in view of this, it is necessary to provide a method that can solve the problem of existing straw powder bio-based degradable materials with high water absorption and moisture absorption, easy to remove "powder" and poor antibacterial performance through technological formula.

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