Anti-impact antimicrobial food packaging material and preparation method thereof

Abstract

The invention discloses an anti-impact antimicrobial food packaging material, which is prepared from the following raw materials in parts by weight: 100 parts of low-density polyethylene, 10 to 12 parts of polystyrene, 3.6 to 3.8 parts of nanometer zinc oxide, 6.6 to 6.8 parts of purple perilla essential oil, 0.5 to 0.7 part of sodium dodecyl benzene sulfonate, 4 to 5 parts of medical stone, 1 to 2 parts of tallow, 7.6 to 7.8 parts of butylparaben, 9 to 11 parts of short carbon fiber, 3 to 5 parts of pig skin gelatin and a proper amount of water, wherein the low-density polyethylene is used as a base material; the nanometer zinc oxide subjected to activating treatment is used as a photocatalysis antibacterial agent; the purple perilla essential oil is compounded; even under the nonluminous condition, high antibacterial property is also realized; the antibacterial broad spectrum activity is high; meanwhile, the modified medical stone is used as filler; the anti-impact performance and intensity of the material are improved; the prepared antibacterial food packaging material can improve anti-impact performance and high temperature resistant performance of food.

Description

technical field [0001] The invention relates to the technical field of food packaging, in particular to an impact-resistant 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...

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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