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PE protective film suitable viscosity and production principle
PE protective film has many functions, and various forms can be seen on the market today. The products packed with PE protective film will be better protected during transportation, storage and use, free from pollution, corrosion, and scratches. They can maintain the original shiny surface and improve the quality and market competitiveness of the product.
PE protective film has many functions, and various forms can be seen on the market today.
The products packed with PE protective film will be better protected during transportation, storage and use, free from pollution, corrosion, and scratches. They can maintain the original shiny surface and improve the quality and market competitiveness of the product.
Take a look at the six characteristics of PE protective film:
PE protective film is easy to stick and tear, easy to use. The storage period of the protective film is very long, and the quality can be stored in the warehouse for more than one year without change. The peeling force of the PE protective film is stable: the change over time is small, that is, the smaller the increase of the peeling force, the better. The weather resistance of the PE protective film is good: under the conditions of sunlight exposure, the use period can still be as long as half a year to one year. The PE protective film is non-polluting and non-corrosive: the adhesive is inert and will not chemically react with the surface of the material being adhered. Excellent mechanical properties: Tensile strength, elastic modulus, elongation, etc. that meet user requirements.
In addition, we also need the following knowledge:
PE protective film adhesive (glue) is a polymer with viscoelasticity, sticking film, tearing film; the main factors affecting the viscosity are wetting and penetration. PE protective film adhesive (glue) is a viscoelastic polymer.
Film: The adhesive layer can be in close contact with the surface of the adherend and flow into the groove of the adhered surface as much as possible to increase the effective contact area.
The main factor affecting the viscosity is wetting: the pressure-sensitive adhesive can only achieve close contact with the surface of the adhered object to achieve close contact, creating conditions for the physical and chemical combination of molecular movement and diffusion: the pressure-sensitive adhesive molecules will move to the surface of the material When the distance bond between the two is less than 5A, physical and chemical bonding will occur.
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