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The working principle of PEVA film is mainly due to its unique molecular structure and material characteristics. The PEVA film is made of polyethylene vinyl alcohol (PEVA) material and has a structure in which ethylene and vinyl alcohol groups are alternately arranged. The vinyl groups impart excellent flexibility and abrasion resistance to the PEVA film, giving it better tensile strength and durability. The vinyl alcohol group makes the PEVA film have good waterproof, moisture-proof, antibacterial and other properties, suitable for a variety of environments and applications.
The waterproof performance of PEVA membrane is one of the core of its working principle. When the PEVA film is eroded by moisture or liquid, the vinyl alcohol group can effectively prevent the penetration of moisture and keep the surface of the film material dry. This waterproof mechanism makes the PEVA film have excellent moisture resistance in the packaging of food, storage items and other scenes, effectively protect the coated items from moisture.
In addition, the PEVA film also has antibacterial properties that are not susceptible to microbial invasion, and can effectively inhibit the growth of microorganisms such as molds and bacteria, thereby prolonging the service life of the film and maintaining the hygiene and safety of the coated articles.
In summary, PEVA film through its unique molecular structure and excellent physical and chemical properties, can play a role in waterproof, moisture-proof, antibacterial, etc., for all walks of life to provide a high-quality environmentally friendly material choice.