Factors affecting viscosity of PE stretch film
Source:Factors affecting viscosity of PE stretch filmTime:2022-01-06Visitors:
Factors affecting viscosity of PE stretch film
With the wide application of PE stretch film in the logistics industry, PE stretch film is a popular packaging material nowadays. The stickiness of PE stretch film, if the stickiness of PE stretch film is good, the packaged products will be stronger and stronger, reducing damage caused by external factors. So what factors will affect the viscosity of the PE stretch film?
The factors that affect the viscosity of the PE stretch film are as follows:
1. Whether the self-adhesiveness is good;
2. How to obtain the viscosity of the PE stretch film itself;
3. The temperature of the cooling roll.
There are many materials for the production of PE stretch film, which mainly depend on the application field of the product. Therefore, if you want to control the viscosity of the PE stretch film, you can work hard on the material. Not all C4-LLDPE can be matched with PE stretch film. C6 and C8 materials are often used because of their ease of processing, and temperature will also affect the viscosity of PE stretch film. Generally, we put the product on the 15th In an environment of 25 degrees, if the temperature exceeds 30 degrees, the viscosity will increase; if it is below 15 degrees, the viscosity will become worse.
Since there are polyethylene components in the PE stretch film, we can adjust the amount of polyethylene in the adhesive layer to achieve the required viscosity; because the molecular weight distribution of the PE stretch film is relatively narrow and the processing range is relatively narrow, it is usually As long as five percent of polyethylene is added, the effect of reducing the melt viscosity can be achieved, and the flatness of the PE stretched film will also be improved to increase the flatness of the film.
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