In the production process of light blue daily PEVA film, the content of vinyl acetate (VA content) is closely related to it. This content not only determines the transparency of the film, but also affects its softness and toughness. Therefore, finding an right VA content range has become the key to manufacturing high-quality PEVA film.

When the VA content increases, the resilience, flexibility, adhesion, transparency, solubility, stress cracking resistance and impact performance of EVA will be improved. This means that by increasing the VA content, we can obtain a PEVA film with higher transparency. However, this improvement is not without cost. As the VA content increases, the rigidity, wear resistance and electrical insulation of PEVA will decrease accordingly, which may affect the toughness and durability of the film.

While pursuing high transparency, we need to ensure that the softness and toughness of the PEVA film are not affected. After a lot of experiments and research, we found that when the VA content is within a certain range, a balance between the three can be achieved. This range not only ensures the transparency of the film, but also keeps it sufficiently soft and tough.

Specifically, when the VA content is between 20% and 30%, the PEVA film shows a relatively ideal performance. Within this range, the transparency of the film is significantly improved while maintaining good softness and toughness. This finding provides important guidance for us to produce high-quality light blue daily PEVA film.

It is worth noting that this right range is not static. It may be affected by many factors such as raw material quality, production process, equipment conditions, etc. Therefore, in the actual production process, we need to adjust and optimize according to the specific situation.

In addition to the VA content, factors such as the selection of raw materials, the use of additives, and the configuration of production equipment will also affect the performance of PEVA film. For example, the selection of low molecular weight PE and EVA containing an appropriate amount of VA as raw materials can further improve the transparency and softness of the film. In addition, the performance of the film can also be improved by adding appropriate additives such as antioxidants and lubricants.

Based on the above content, we can know that finding the right VA content range is the key to achieving a balance between softness, toughness and transparency of light blue daily PEVA film. In the actual production process, we need to adjust and optimize according to the specific situation to obtain PEVA film products with superlative performance and reliable quality.