High-performance nano preservative film

Abstract

The invention discloses a high-performance nano preservative film. The invention is characterized in that the high-performance nano preservative film is prepared from the following raw materials in parts by weight: 50-70 parts of polyethylene plastic, 10-15 parts of silver nano material, 10-15 parts of TiO2 nano material, 20-25 parts of plastic starch, 20-25 parts of degradable polycaprolactone, 3-5 parts of low-molecular weight polyhexylene wax, 6-8 parts of coupling agent, 3-5 parts of lubricant, 3-5 parts of monostearoyl glyceride, 4-6 parts of stabilizer, 3-5 parts of talcum powder and 10-15 parts of kaolin. The prepared film can well adapt to the physiologic, biochemical and mass variation laws of vegetables due to oxygen permeability and water permeability, thereby ensuring the preservation quality and barrier performance of the product and prolonging the storage time of food. The film has favorable antimicrobial and antiseptic effects, can ensure the food safety within the shelf life. The film has the advantages of high antimicrobial efficiency, high safety and no toxicity, is degradable and flammable, is easy to recover, and avoids hazarding health of people.

Description

technical field [0001] The invention belongs to the technical field of storage and processing of agricultural products, and in particular relates to a high-performance nano fresh-keeping film. Background technique [0002] Fresh-keeping film and fresh-keeping bags are commonly used plastic packaging products for fresh-keeping food, and many families cannot do without them now. Microwaves will be used to heat food, as will storing food in the refrigerator. The cling film on the market is roughly divided into two categories, one is ordinary cling film, which is suitable for refrigerator preservation; the other is microwave cling film, which can be used for both refrigerator preservation and microwave oven. The latter kind of plastic wrap is far superior to ordinary plastic wrap in terms of heat resistance and non-toxicity. Therefore, consumers should pay special attention to the choice of use and use them item by item. [0003] Cooked food, hot food, and fatty food, especia...

AI Technical Summary

Problems solved by technology

However, most of the films currently used are materials that are not degradable, difficult to recycle, and difficult to burn. The serious pollution of these materials to the environment has been recognized by the world; the shortening of the shelf life of food due to packaging materials has brought serious losses to manufacturers. Nano packaging materials The oxygen barrier, moisture resistance, and antibacterial properties of the packaging materials are significantly enhanced compared with ordinary packaging materials. In order to reduce the rot and deterioration during storage, most of the fresh agricultural products in our country use various chemical fresh-keeping materials. How to produce a kind that is suitable for Nano-packaging materials with fruit freshness and degradability are of great significance