RECYCLING | ADDITIVES
Right: Milliken’s
DeltaMax and DeltaFlow recy- cling additives can be applied in many application areas
“Additive solutions, like Milliken’s DeltaMax and DeltaFlow, level the playing field to improve the physical properties and performance of recycled plastic resin,” says Allan Randall, Global Product Line Manager for Plastics Additives at Milliken. “With characteristics that meet and exceed that of virgin resin, brands and manufac- turers can increase PCR streams to achieve minimum recycled content goals. Addressing the performance elements of PCR resin helps increase its use within the brand space and makes the case for greater utilisation across applications.”
Aesthetic gains
Swiss speciality chemical company Clariant has also recently introduced a number of new additive solutions aimed at facilitating more sustainable plastics and reducing resource use. It says that surface aesthetics play a crucial role in the per- ceived quality of many consumer goods, a charac- teristic said to be improved using its latest renewa- ble-based anti-scratch additive for PP and thermoplastic olefins (TPO). Licowax AS 100 TP can enable moulded plastic items to maintain their original look and feel longer and is said to be particularly beneficial in scuff-prone applications such as interior automotive parts and cosmetics packaging. “By extending a product’s service life and by boosting reuse potential, the plastics industry can contribute positively towards reducing wasteful consumption, and increase circularity in key segments. With these new additives, including renewable-based solutions, we’re excited to offer plastic processors and value chains more support to collaborate and further innovate together,” says Martin John, Head of Advanced Surface Solutions at Clariant. The company’s latest light stabiliser solution for polyethylene (PE) agricultural films — AddWorks AGC 970 — also aims to enhance sustainability by improving product durability by increasing resistance to UV and agrochemicals. Meanwhile its
Völpker wax-based additives can improve processing of an extensive range of recycled polymers
bio-based Licocare RBW 560 TP Vita wax can help reduce cycle times and aid mould release. Licocare RBW 560 TP Vita marks the latest
extension to Clariant’s Licocare range of additives derived from crude rice bran wax, a byproduct of rice bran oil. Compared to conventional products, the company says it can withstand higher process- ing temperatures, works more effectively at low dosage, and displays good colour stability. It says this combination of performance attributes make Licocare RBW 560 TP Vita particularly attractive to formulators of polyester compounds for use in the E&E or transportation industries. Montan waxes are widely used as multifunction- al additives as they can simultaneously act as viscosity reducers (flow enhancers), mould release agents, and dispersion aids. Under the brand name Cevo, Germany-based Völpker develops ready-to- use wax additives for a wide range of specific processing challenges and end-product require- ments. Depending on the individual task, the additives can improve dispersion, stabilisation and compatibilisation. One area of application is in reprocessing of post-consumer HDPE/LDPE waste, which typically contains unwanted polymer particles or other contaminants. Cevo 3680 can disperse these. Meanwhile, Cevo 6000 can reduce compatibility problems arising from contamination of polyolefin waste streams with foreign polymers. It also promotes stabilisation of the resulting product. Völpker’s Cevo 5515 grade can improve the compounding and reprocessing of acetal (POM homo and co-polymers, which can release formalde- hyde when exposed to multiple thermal loads. The addition of Cevo 5515 can suppress the formation of the associated unpleasant odours during com- pounding as well as reducing degradation.
IMAGE: VÖLPKER 28 COMPOUNDING WORLD | October 2023
Tackling odour US-based CAI Performance Additives says one of its most popular products for recycling applications is LDV1035T, which can permanently remove
www.compoundingworld.com
IMAGE: MILLIKEN
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