ANTIOXIDANTS AND STABILISERS | ADDITIVES
UV stabilisers strengthen work in sustainability
Antioxidants and UV stabilisers enhance durability of plastics, helping towards sustainability. Jennifer Markarian finds out more about recent developments
Antioxidants and ultraviolet (UV) light stabilisers for thermoplastics are being positioned as aiding sustainability by enabling a longer useful life for plastic goods, which leads to less waste. As compa- nies seek to meet sustainability goals and require- ments for recycled content, antioxidants are finding growing use in stabilising recycled plastics. These materials can benefit from restabilisation to counter degradation from processing and their initial use. UV stabilisers are particularly important for protect- ing durable plastic parts from degradation due to light and weathering in outdoor applications. Stabilisers are also critical for plasticulture – plas- tics used in agricultural applications, such as green- house films and mulch films, which must withstand the additional exposure of agricultural chemicals. Various classes of UV stabilisers are available for different applications, including UV absorbers and hindered amine light stabilisers (HALS). BASF’s non-basic aminoether (NOR) HALS
provide improved stabilisation in plasticulture compared to stabilisers based on secondary and methylated HALS, the company said. BASF’s partnership with Shouman Group, based in Egypt, will be highlighted at the upcoming K Show.
www.compoundingworld.com
Shouman is an early adopter of Tinuvin NOR 211 in plasticulture for managing excessive heat and exposure to sulphur and chlorine. International chemical company and polymer additives producer Sabo has ended its long-term, global distribution agreement outside of Europe with Korean stabilisers manufacturer Songwon. In addition to the European market, Sabo is now globally offering its Sabostab UV HALS, moving forward with its international expansion strategy. “This strategic decision enables Sabo to re- spond more dynamically and effectively to custom- er needs with a tailored sales approach while aligning with its long-term expansion strategy,” the company said. “Following its backward integration through the acquisition of HALS intermediates in January 2023, the company has been reinforcing its global supply chain and production capabilities, ensuring a stable, high-quality supply of HALS solutions to customers worldwide.”
Beside conventional low molecular weight HALS and high molecular weight polymeric HALS, Sabo supplies UV absorbers used in polymers such as PVC, PMMA, and TPU. Sabo also offers more specialised UV stabilisers for specific applications
September 2025 | COMPOUNDING WORLD 39
Main image: A new application area for Clariant’s
Nylostab S-EED is in polyamide artificial turf, where the stabiliser protects the polymer’s durability and colour under high UV exposure
IMAGE: CLARIANT
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