ADDITIVES | RECYCLING
mance. Similarly, a European customer concluded successful testing and moved to commercial use. Nexam reported a more than 80% increase in the number of samples shipped for evaluation by prospective customers in June and July compared with the same period last year, excluding additional samples distributed through Palmer Holland. “The geographic reach of the interest in our solutions is clearly broadening,” said Ronnie Törnqvist, CEO of Nexam Chemical. Enquiries have come from a broad range of geographic markets, including Europe, North America, South America, Asia and Africa. The company added distribution agreements this year with Vanoplast in France and another distributor in Turkey, adding to its distribu- tors in North America and Asia. Also this year, an independent study tested 1%
of Nexamite R201 additive in a 50/50 blend of rPP and virgin material which was injection moulded into a chair. The test found that the additive maintained mechanical properties and improved flexural strength and stiffness, as well as provided a controlled reduction of melt flow rate to an optimal level for injection moulding. The company said that the study validates the additive’s capability in injection moulding, in addition to existing applica- tions in extrusion and in blown film. Techmer PM collaborated with graphene
producer NanoXplore to launch GrapheneBlack xGnP masterbatch to significantly boost properties in film applications, as discussed in another article in this issue. The product combines Techmer PM’s film expertise and Techsperse advanced dispersion technology with NanoXplore’s proprietary high- surface-area xGnP graphene technology. The graphene-enhanced solution has the potential to
significantly increase the amount of recycled content that can be incorporated into film formula- tions without sacrificing performance, the compa- nies suggested. They noted that this would benefit packaging manufacturers who are seeking to meet challenging sustainability mandates and circular economy targets.
Recycling innovations At K2025, Brüggemann introduced Bruggolen R8897, a thermostabiliser developed specifically to improve the properties of PP-EPDM recyclates from vehicle front-end applications. The additive helps retain mechanical properties during long-term heat ageing, as demonstrated by laboratory tests that show an improved level of residual Charpy impact after ageing.
Another innovation from the company that
improves recyclability is Compoback, which is an additive for polyolefin foams, HFFR compounds, cables and TPEs that is an alternative to crosslink- ing. The additive allows thermoset-like perfor- mance while maintaining the ability of thermoplas- tics to be reprocessed. As shown in the diagram (left) of square cross-sections of physically foamed PE profiles, the samples without stabilisation shrank by approximately 75% after 24 hours of storage at 100° C. When compounded with Compoback, however, the shrinkage was negligible and similar to conventional, permanent crosslinking. Processing aids are critical additives for extrusion
applications and are even more important when formulations contain higher levels of PCR. Processors are seeking formulations that comply with current and potential regulatory requirements. Conventional fluoropolymer-based processing aids are under pressure due to restrictions on per- and polyfluoro- alkyl substances (PFAS), such as the restriction in the EU’s Packaging and Packaging Waste Regulation (PPWR) on PFAS in food-contact packaging. Multiple non-fluorinated processing aids have
Brüggemann’s Compoback additive: shrinkage of rectangular foam profiles after 24 hours ageing at 100°C Source: Brüggemann
50 COMPOUNDING WORLD | October 2026
been introduced as an alternative to address the need for reducing melt fracture and die buildup in extrusion processes, as discussed in the April issue of Compounding World. Most recently, Gabriel-Che- mie introduced Maxithen PFAS-free PPA master- batches, which the company described as PFAS- and silicone-free processing aids based on hydrocarbon technology. The company said that the new master- batches demonstrated comparable process stability and product quality to conventional processing aids in large-scale industrial production trials. New from Ampacet is a slip control master-
batch, Ampacet Slip Scavenger 1540, which is part of the company’s R3 Sustainable Solutions portfo-
www.compoundingworld.com
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