MATERIALS | PLASTICISERS
challenges of using the bio-based plasticiser, such as compatibility with the rest of the compound formulation, to provide PVC compounds with lower greenhouse gas emissions without compromising performance, said Mike Patel, Director of Marketing at Teknor Apex’s Vinyl Division.
Shore A hardness test results using Cargill’s Biovero AC-500 plasticiser Source: Cargill
in high temperature products. It is appropriate for jacketing and some insulation components. The product is stable in high-temperature environ- ments, and it stays in the polymer when other plasticisers may volatilise out, which reduces potential flexibility loss and failures, such as cracks or breaks, the company reports. The bio-derived plasticiser adds thermal stability to bring additional longevity to PVC products by securing colour stability and resisting degradation from processing and product lifecycle heat exposure. Additionally, its plasticising efficiency brings reduced plasticiser loadings without flexibility loss. Teknor Apex has supplied its BioVinyl flexible
PVC compounds with the non-phthalate, bio-based Dow Ecolibrium plasticiser for more than a decade. Teknor Apex has designed its formulation and compounding process to overcome technical
Biomass-attributed Besides bio-based plasticisers, another way to reduce carbon footprint of plasticisers is to use raw materials that are certified as coming from renew- able sources to make bio-attributed plasticisers (also referred to as biomass balanced). These are considered a “drop in” replacement to their equivalent made from non-renewable sources, because they are chemically the same. Adeka’s ADK CycloAid PNB series products are polymeric, biomass balanced plasticisers for PVC. The company’s latest, launched in Japan, is PNB- 205, with more than 90% biomass. The company reports that the PNB series products exhibit equal or better performance in terms of resistance to oil extraction, heat aging stability, and less migration. Many in the industry are now using the ISCC
certification, developed by the International Sustainability & Carbon Certification organisation for the EU’s criteria under the Renewable Energy Directive and the UK under the renewable fuel obligation. ISCC Plus is a corresponding certification outside of the EU and UK. The certifications provide assurance that sustainability requirements – includ- ing protection of forests – have been met through- out the value chain, back to the point of origin. Lanxess introduced a more sustainable solution for its Mesamoll phthalate-free plasticiser with
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