ADDITIVES | FILM
required by the EU’s PPWR will require improve- ments in both recycling infrastructure and material design, added BASF. “While additives can help restore performance lost during recycling, they cannot compensate for significant contamination or poor-quality recy- clates. Improving recyclate quality remains a prerequisite for higher recycled-content films,” the company said. BASF’s Irgacycle additive solutions are tailored to improve processing stability, melt flow behaviour and mechanical properties in recycled LDPE and LLDPE. “As a result, converters can produce high-quality films with recycled content levels of up to 50% while maintaining mechanical performance,” the company reported.
Agricultural film Films are used in many applications besides packaging. Additives are needed in agricultural films, for example, to protect the film from degra- dation caused by UV light or harsh chemicals. BASF said that its Tinuvin NOR 356 AR, a high-performance Hindered Amine Light Stabiliser (HALS), provides long-term stability under severe conditions of solar radiation and agrochemicals, and that Tinuvin NOR 211 AR and Tinuvin NOR112 AR complement this with synergistic protection against sulphur- and chlorine-containing chemicals for extended film service life. “Field trials in greenhouse and mulch films demonstrate that Tinuvin NOR 356-based formula- tions can achieve service lifetimes exceeding 36 months, even in regions with high UV exposure,” BASF reported. “AR-grade solutions have shown stability at sulphur levels up to 5,000 ppm and
chlorine levels up to 250 ppm. Laboratory studies further confirm that combining Tinuvin NOR light stabilisers with Irgacycle solutions helps maintain tensile strength and optical clarity in recycled-content films, with minimal yellowing during reprocessing.” Syensqo’s latest Cyasorb Cyastab A8220 stabiliser is designed to help greenhouse films withstand both UV exposure and harsh chemicals, such as sulphur- and chlorine-based pesticides. Stabilised films retain a high percentage of their original tensile strength and flexibility during use, which results in longer service life and fewer replacements. The stabiliser is suited to films up to 200 microns in thickness and the formulation does not interfere with light transmission, which is critical for greenhouse films. The stabiliser works particu- larly well in EVA or EBA films, which are commonly used in greenhouses.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.baerlocher.com �
www.arkema.com �
www.dow.com �
www.wacker.com �
www.cargill.com �
www.3m.com �
www.clariant.com �
www.avient.com �
www.palsgaard.com �
www.tosaf.com �
www.sukano.com �
www.natureworksllc.com �
www.nexamchemical.com �
www.basf.com �
www.syensqo.com
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