PLASTICISERS | MATERIALS
Developing plasticisers for the future of PVC
IMAGE: GRUPA AZOTY
The latest innovations in PVC plasticisers tackle health and environmental concerns while promising better cost and performance. Mikell Knights reports
With traditional plasticisers continuing to face pressure over potential health and environmental concerns, alternatives continue to emerge for these essential additives for the flexible PVC industry. The latest developments include phthalate-alternative products — both bio-based and high molecular weight types — with many producers focusing on application-specific plasticisers that offer benefits ranging from improved toxicological profiles and reduced environmental impact, while simultane- ously enhancing performance characteristics such as heat stability, mechanical properties, migration- resistance or efficiency. Brazil-headquartered Innoleics continues to
expand its portfolio of bio-based primary plasticisers with the development of two new general-purpose grades, already released into the Brazilian market, which have successfully replaced DINP and DOTP in plastisol formulations, according to Jacyr Quadros,
www.compoundingworld.com
Director at Innoleics USA. The materials are now being made available internationally, with Innoleics USA providing local technical support in the North American market and Varteco Iberica in Europe. The company’s GPe 9 and GPe 10 grades are described as sustainable plasticisers for use in s-PVC (suspension grade) compounds and plastisols. They are manufactured using Innoleic’s vegetable oil chemical modification tehchnology, which the company says results in a phthalate-free primary plasticiser that does not display the compatibility issues that can occur with Epoxidated Soybean Oil (ESO) types. Innoleics says it subjects the soybean oil fatty acids to transesterification, epoxidation, and acylation to produce materials that offer improved compatibility with PVC and lower volatility, which helps in high performance applications. Both general purpose plasticisers are said to feature reduced plastisol gelation and fusion
Main image: Plasticiser producers are developing new products with better toxicological, environmental and perfor- mance profiles
August 2023 | COMPOUNDING WORLD 23
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