Through the high-pressure method (generally under high-pressure conditions ranging from 100 to 300 MPa and high-temperature conditions ranging from 160 to 300 °C).
During the production process, in a high-temperature and high-pressure environment, ethylene molecules undergo free radical polymerization reactions under the action of initiators and other substances. A large number of ethylene monomers continuously combine to form polyethylene molecules with a long-chain structure, and finally this film is made. It has a series of unique performance characteristics. For example, it is soft and elastic in texture, has excellent flexibility, and offers a relatively comfortable touch, which enables it to be easily bent and conform to objects of different shapes during various processing and packaging operations.
It has relatively high transparency and can present the appearance of the packaged items clearly, which is beneficial for product display. Meanwhile, it also has good moisture resistance, a certain degree of water resistance and relatively good chemical stability. When it comes to contact with common chemical substances, it generally does not easily undergo chemical reactions and get damaged, so it can play a protective role for products in a variety of environments.
