There are two main ways to obtain the viscosity of the stretch film:
1. Add PIB to the polymer
2. Mixed with VIDPE, the viscosity is slightly worse
Why is the stickiness of the stretch film not so great when it is cold in winter? This is because it generally takes three days for PIB to move out, and it is also affected by temperature. When the temperature is high, the viscosity is strong; when the temperature is low, it is not too sticky, and the viscosity is greatly reduced after stretching. Therefore, the finished film is best stored within a certain temperature range (recommended storage temperature is 15 ℃ ~ 25 ℃).
If the temperature is slightly higher, the viscosity will be stronger, so we should pay attention to the temperature when we store it.
