Nanometer antibacterial fresh keeping film for fruits and vegetables

Abstract

The invention relates to a nanometer antibacterial fresh keeping film for fruits and vegetables, wherein the raw materials comprise, by weight, 40-50% of linear low density polyethylene, 0.1-1% of a plasticizer, 0.1-3% of carboxymethyl cellulose, 0.1-3% of nanometer silica, 0.1-3% of a calcium-zinc stabilizer, and 40-60% of an anti-fogging agent. According to the present invention, the nanometer antibacterial fresh keeping film has advantages of low environmental pollution, excellent mechanical property, good gas permeability, good moisture permeability and excellent antibacterial fresh-keeping ability.

Description

technical field [0001] The invention belongs to the technical field of material science, and in particular relates to a nano antibacterial fresh-keeping film for fruits and vegetables. Background technique [0002] Plastic wrap is a kind of plastic packaging product, usually made of ethylene as the masterbatch through polymerization reaction, mainly used in microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and other occasions, in family life, supermarkets, hotels and restaurants It is widely used in the field of industrial food packaging. According to the different materials used and the addition of plasticizers, plastic wrap is divided into various types, which can be applied to different occasions. Preservative film has been favored by people for its convenience, economy and attractive appearance. However, due to the general addition of plasticizers in the production process, the impact of plastic wrap on human health has also r...

AI Technical Summary

Problems solved by technology

The invention provides a fresh-keeping film for agricultural products, which has a wide range of raw materials, low cost, broad market prospects, and improves the air permeability of traditional fresh-keeping; but the raw materials used in the invention contain polyvinyl chloride and phthalates. Dibutyl formate, which has a certain impact on the safety of the human body, and the mechanical strength, air permeability and moisture permeability are further improved