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What are the components of PE shrink film?

The main component of the PE shrink film formula is polyethylene, followed by silica, antistatic agents, pigments, anti-ultraviolet agents, etc.
Shrink film is mainly a kind of film with stress effect, which has certain applications in food, medicine, stationery and other packaging.
PE: PE heat shrinkable film has tested that polyethylene is the main component of shrink film. Polyethylene is a compound formed by polymerization of many ethylene monomers. It is non-toxic and tasteless and is widely used in food and pharmaceutical packaging plastics. Polyethylene has chemical It has the characteristics of stable performance, not easy to age, easy to degrade, and does not react with common oxidants.
Silica can be uniformly added to the pe shrink film formula to increase the compactness and smoothness of the shrink film. On the other hand, it can also enhance the toughness of the shrink film and change the tensile strength of the shrink film. Silica also has the effect of anti-ultraviolet rays, which can prevent the degradation of polyethylene by ultraviolet rays and delay the aging of the shrink film.
The inspection of PE heat shrinkable film found that the main non-ionic antistatic agent is ethoxylated aliphatic alkylamine, which is an antistatic agent with a wide range of applications and long-term antistatic effect. Non-ionic antistatic agent has the advantages of good dispersibility, convenient transportation and good processing performance.
The anti-ultraviolet agent in the Pe shrink film formula mainly converts light energy into heat energy to avoid degradation of plastics under ultraviolet radiation. Commonly used ultraviolet absorbers mainly include benzophenone and benzotriazole.