Front Cover Feature To meet the market need for a further improved balance between low temperature properties and oil resistance, the company says it is now working with its customers on a new generation of Therban elastomers, which will redefine the Therban application window. It says these products will push the boundaries for low temperature applications well below -40°C, whilst maintaining excellent oil resistance.
An offshore windmill park shows the use of Levapren EVM for wind turbines
To be introduced are two specially formulated compounds: Levapren 500 and Levapren 700, ideally suited for use in nacelles of wind turbines, specifically in cable sheathing. Because they contain no halogens, they do not emit gasses normally released by halogen-based materials in a fire. In addition, Levapren EVM grades have comparatively high VA content, which makes them compatible with polar fillers, owing to their high polarity. The two compounds also do not absorb oil or grease from the surrounding machinery, so in the event of a fire, absorbed burning hydrocarbons will not destroy the flame suppressing properties of the cable jacket. Furthermore, the molecular weight of Levapren is particularly widely distributed and wellcontrolled. In addition, it is a gel-free product, which has a positive effect on the processability of the material and the quality of the end-product. Therban pushes the envelope for lower temperatures At K, ARLANXEO will introduce two new products of Therban HNBR for low temperature applications: Therban LT 1707, a fully saturated grade, and Therban LT 1757, a partially saturated grade. Both grades offer the ability to fulfill stringent low temperature requirements up to -40°C, while at the same time maintaining the high dynamically and heat resistant performance of this rubber. This makes the grades ideal for use in applications in cold regions or in cold media, for example in the oil and gas exploration industry.
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ARLANXEO will introduce two specially formulated Levapren compounds ideally suited for nacelles of wind turbines, specifically in cable sheathing. Shown here is a crosssection of a cable
More NBR grades to follow At K, the company is also presenting its broad portfolio from linear to highly pre-crosslinked powder NBR products, produced by a grinding or spray drying process for use in various applications, including gaskets, brake pads, and PVC modification.