TPE for Impact Modification
With an ever increasing refuse stream, Government waste prevention programmes and new industry targets, the demand for products made from recycled materials is rising, meaning that recyclability is becoming an increasingly important attribute for polymers. However, thermomechanical degradation from the repeated melting during the recycling process, weathering and contamination can all have negative effects on properties and performance.
Dryflex TPE impact modifiers can be added to the recyclate, helping to transform the properties from stiff and brittle to flexible and tough and improve the impact resistance and aesthetics of the finished product. Dryflex TPE compounds are being used as impact modifiers in both primary and secondary recyclate supply streams.
TPE compounds vs SBS
In the past we have seen a rather inconsistent approach to impact modification, where any available compounds or polymers are thrown into the recyclate mix. This can lead to inconsistencies and unpredictable results. With our Dryflex TPE impact modifier grades we have adopted a more qualified approach.
We have tested many different formulations with both virgin and recycled polymer for impact strength and have also compared these results against data collated from common materials used in the industry such as pure SBS. The Dryflex TPE impact modifier grades help to increase the value, processability and potential applications for recovered PP and PS.
Our Dryflex TPE impact modifiers expert
Senior Key Account Manager for HEXPOL TPE Ltd
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