RECYCLING | ADDITIVES
Above: PET pellets reprocessed four times with and without use of Polyvel’s rBoost additives
Tuned performance US-based materials design company Techmer PM specialises in modifying and fine-tuning properties of technical polymers. Developed primarily for the fibre and non-woven market, its PP Recycle Enabler is designed to retain Melt Flow Rate (MFR) and impact properties in both PP homopolymer and copolymer during recycling. The company is also addressing the issue of PE contamination. “There is a recurring challenge in nonwoven production when recycled resins combine both PE and PP components, especially through bi-component nonwoven lines,” says Kaan Serpersu, Product Development and Sustainability Manager. “Techmer PM’s Recycled PP/PE Stabiliser addresses these complexities by employing a stabilisation process to harmonise the properties. The additive reduces interfacial tension between the polymer types, promoting better mixing and enhancing mechanical properties. The process also
retains the MFR and colour properties of the recycled resins.” The company has also developed additives for use in PET recycling. HiTerra rPET Revive, launched earlier this year, aims to rebuild the resin’s polymer chains, increasing viscosity and reducing yellow- ness. “rPET Revive can allow for a higher regrind/ recycle rate and improve productivity,” says Steve Smith, Techmer PM’s Market Manager for Rigid Packaging. “We selected the active ingredient to be compatible with PET resins used in fibre and moulding applications. Converters can use it in the production of thermoformed sheets, and the product is showing good potential for use in bottles.” Also targeted at PET recycling challenges,
Polyvel’s ReVal additive masterbatches now include its rBoost PET Chain Extender, which is designed to increase the intrinsic viscosity (IV) and impact strength of recycled PET. Developed for use in compounding, fibre, extruded sheet, injection moulding and blow moulded bottle applications, it also reduces the yellowness index of rPET and is claimed to improve processability.
CLICK ON THE LINKS FOR MORE INFORMATION: �
https://corporate.evonik.com �
www.clariant.com �
https://voelpker.com �
www.caiadditives.com �
www.imerys.com �
www.ampacet.com �
www.cotrep.fr �
www.techmerpm.com �
www.polyvel.com
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IMAGE: POLYVEL
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