High-stiffness antibacterial food packaging material and preparation method thereof

Abstract

The invention discloses a high-stiffness antibacterial food packaging material. The high-stiffness antibacterial food packaging material is prepared from the following raw materials in parts by weight: 100 parts of low density polyethylene, 11-13 parts of EVA resin, 3.3-3.6 parts of nano-zinc oxide, 6.3-6.6 parts of bergamot essential oil, 1.7-2.4 parts of polyethylene wax, 2-3 parts of talcum powder, 5-7 parts of ground cortex meliae, 1-2 parts of malic acid, 0.6-0.8 part of zinc borate, 7.3-7.6 parts of dodecyltrimethoxysilane, 12-14 parts of hibiscus cannabinus fiber and a proper amount of water. Low density polyethylene is taken as a base material, nano-zinc oxide activated by virtue of a silane coupling agent is taken as a photocatalysis antibacterial agent, and the bergamot essential oil is compounded, so that the food packaging material still has relatively strong antibacterial property and high antibacterial broad spectrum activity under a dark condition; meanwhile, and the modified talcum powder is added as a filler, so that the adsorbability is strong. The high-stiffness antibacterial food packaging material has excellent stiffness performance and good thermal insulation property and light insulation property and is very suitable for packaging foods such as lollipops.

Description

technical field [0001] The invention relates to the technical field of food packaging, in particular to a high-stiffness 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 the ex...

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