STABILISERS/LUBRICANTS | PVC
outperformed conventional liquid Ca/Zn and Ba/Zn stabiliser/plasticiser combinations in terms of both static and dynamic heat stability, while imparting comparable transparency. “It is expected that incorporation of these
high-efficiency stabilisers at reduced loadings into flexible PVC compounds will lead to improved plasticiser permanence as well as enhanced perfor- mance of final articles,” Frenkel says. “In addition to the described performance attributes of the new liquid and solid high efficiency stabilisers, Drapex Alpha bio-based plasticisers also impart plasticisa- tion efficiencies superior by 5-15% compared to conventional plasticisers such as DOTP and DINP.” Galata says that incorporation of these high
efficiency stabiliser/plasticiser combinations into flexible PVC compounds can result in cost-in-use reductions. The company adds that the Mark 3600, Mark 3601, Mark 3602, and Mark 3610 products are all suitable for use in selected food contact applications in the US. PMC Organometallix is developing what
Clarke McGuire, Global Business Director Stabilis- ers, says is a next generation of organotin stabilis- ers that incorporate proprietary fatty acid ligands
and that can be used by themselves or in conjunc- tion with the standard 2-EHMA (ethylhexyl meth- acrylate) ligands. The fatty acid ligands are being utilised in octyl- and methyl-based stabilisers to overcome regulatory issues with dioctyltin EHMA (DOTE) stabilisers, he says.
REACH restriction “DOTE has recently undergone further REACH restriction in its use and alternative stabiliser technologies have been developed. As well as providing potential alternatives to DOTE, these materials can also bring cost and performance improvements against traditional methyl-based EHMA stabilisers,” he says. The fatty acids are sourced from sustainable agricultural products and are produced by another company in the PMC Group, PMC Biogenix. Its activities are focused on speciality chemicals produced from renewable resources. McGuire says a representative example in the
new range of materials is Advastab OM-3126. The additive, which contains substantially less tin than traditional methyl-based EHMA stabilisers, has been shown to provide similar end-use perfor-
EVOLVED WPC TECHNOLOGY Start Ahead. Stay Ahead. +
Struktol Company of America has been and continues to be the leader for additives and protective compounds in wood and natural fiber composites.
Our products, designed specifically for WPC applications, are key to enhancing product performance, processability and durability.
We keep our customers on the leading edge of technology in this constantly evolving market.
Learn more at
4struktol.com or email
plastics@struktol.com
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