STABILISERS/LUBRICANTS | PVC
Suppliers of PVC stabilisers continue to work on improving the effectiveness and safety of their
products.Peter Mapleston explores some of the latest developments
Stabiliser makers push the safer approach
Performance and safety appear to be the top priori- ties for PVC stabiliser development, with many PVC stabilisers working on increasingly complex systems that contain no substances of very high concern (SVHCs) while still providing superior performance. This is especially the case in Europe, according to the European Stabiliser Producers Association (ESPA, a Cefic sector group), whose nine members represent over 95% of the PVC stabiliser industry in the region. “ESPA members have committed to proactively use in their systems only molecules which, at the current knowledge, do not fall under future regulatory restrictions,” says ESPA’s Manager, Jordi Just. This ambition is being supported by the Addi- tive Sustainability Footprint (ASF) tool, which is a recent development from the VinylPlus Additives Committee and is a project led by ESPA President Ettore Nanni (who is also President of ESPA member Reagens). ASF is an industry-wide methodology based on the Sustainability Life Cycle
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Assessment approach developed by The Natural Step, an NGO advisor to VinylPlus. “Through a 10-step approach, this tool allows its users to assess and promote the sustainable production and use of PVC additives across entire product life cycles, including the role of additives in the performance of PVC products,” says Just. The stabiliser system is the key performance
related additive in any PVC formulation, according to Guido Allieri, Business Manager at Reagens. He says that for the processing of flexible PVC, systems based on liquid mixed-metal soaps (LMMs) are the most commonly used form of stabiliser, but solid stabilisers are becoming more and more important because of increasingly demanding technical requirements and calls for reduction of emissions. Reagens manufactures a full range of liquid stabilisers, including products with inherent self-lubrication properties as well as non-lubricat- ing types, designed to fit different application technologies. Allieri says that as well as its conven-
Main image: PVC stabilisa- tion system developments aim to provide better perfor- mance with an improved safety profile
June 2020 | COMPOUNDING WORLD 19
IMAGE: SHUTTERSTOCK
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