Comparison Of Film Properties For Different Classes Of PE
In one of our previous blog posts (Grade Selection Of Polymer Grades For Film Extrusion) we explored the differing film properties of polymer grades and how they can be combined to create the best possible results, some are better than others. This post summarizes the key differences observed between films produced with different classes of PE.
The different classes of PE are often combined in the film to obtain the best balance of properties for the application. Products can be combined by blending and by coextrusion.
The following table provides a comparison of the film properties for the different classes of PE:
| Property | LDPE | LLDPE | mLLDPE | HDPE |
|---|---|---|---|---|
| Haze | Low | Medium | Medium | High |
| Tensile Strength | Low | Medium | Medium | High |
| Elongation | Medium | Very High | Very High | High |
| Tear Resistance | Medium | Variable | Variable | Low |
| Impact Strength | High | High | Very High | Variable |
| Puncture Resistance | Low | Very High | Very high | Medium |
| Hot tack | Low | High | Very High | NA |
Have a look at some of our case studies. If you need more information or help in the meantime then don’t hesitate to contact us.
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