Pollution-free and anti-bacterial food packaging material and preparation method thereof

Abstract

The invention discloses a pollution-free and anti-bacterial food packaging material. The food packaging material is prepared from raw materials in parts by weight as follows: 100 parts of low-density polyethylene, 2.6-2.9 parts of nano-zinc oxide, 5.8-6.4 parts of chili essential oil, 1.4-1.7 parts of butylated hydroxytoluene, 1-3 parts of mica powder, 4-6 parts of crushed tobacco stems, 2-3 parts of lactic acid, 8-10 parts of wicker fibers, 2.1-2.3 parts of caprylic capric triglyceride, 6.1-6.3 parts of vinyltriethoxysilane and a proper amount of water; low-density polyethylene is used as a base material, nano-zinc oxide activated by a silane coupling agent is used as a photocatalytic antibacterial agent, the chili essential oil is compounded, the material still has the relatively high antibacterial property even under the nonluminous condition, and the broad-spectrum antibacterial property is high; meanwhile, the modified mica powder is added as filler, so that the adsorption property is high. The prepared anti-bacterial food packaging material has certain strength and waterproof performance, food can be packaged conveniently, and people going out to travel can eat the food conveniently.

Description

technical field [0001] The invention relates to the technical field of food packaging, in particular to a pollution-free and antibacterial food packaging material and a manufacturing method thereof. Background technique [0002] Microorganisms are small in size, various in variety, rapid in reproduction and strong in adapting to the environment, and are widely distributed in nature. Most foods are rich in nutrients and high in water content, so they are easily contaminated by microorganisms and cause spoilage, which greatly shortens the shelf life of foods. How to prevent microbial contamination of food and prolong the shelf life of food has always been a subject of research and concern by relevant scientists all over the world. With the development of science and technology, food packaging materials prepared by antibacterial technology can become a practical and reliable antibacterial solution. [0003] In recent years, with the deepening of nanotechnology research and th...

AI Technical Summary

Problems solved by technology

[0004] However, the antibacterial mechanism of nano zinc oxide in this paper is photocatalytic antibacterial. Without light catalysis, the food preservation effect is poor, the shelf life is short, the conditions are harsh and the antibacterial broad spectrum is narrow. It is urgent to add a non-toxic, long-lasting antibacterial effect and no need for light. The catalytic antibacterial agent is compatible with it; at the same time, the food packaging material in this paper only has the function of barrier and protection, and has a single structure. With the increasing importance of food packaging material safety, the market's requirements for food packaging materials continue to increase. High-quality food prolongs the shelf life, especially the demand for active packaging materials, because it can change the packaging environment inside the packaging materials by deoxidizing, antibacterial, dehumidifying, ethylene removing, releasing ethanol, etc., preventing the growth of microorganisms, and then improving food quality. shelf life, necessitating modification of existing technologies