A series of high performance compounds based on polyketone unveiled

15-Oct-14

Lehvoss North America has announced the introduction of its LUVOCOM 70 series of high performance compounds based on polyketone (PK). These compounds fill the gap between compounds based on technical polymers like PA6, PA66, and acetal and high performance polymers such as polyphenylene sulfide (PPS), polyetherimide (PEI), and polyaryletherketone (PAEK). In having a combination of select features of these other polymers, the PK polymer offers an exceptional property profile with unique advantages for applications having multiple engineering requirements. "The introduction is actually a re-launch," explained Michael Sandeen, Sales and Business Development Manager at Lehvoss, "Various LUVOCOM 70 products had been available until the year 2000 but had to be cancelled due to Shell Chemical's discontinuation of Carilon PK polymer production. With the polymer now available, Lehvoss decided to start the development of these new high performance compounds because of their unique and outstanding properties." With its unique profile, PK polymer is a multi-use material that offers inherently good tribological performance. "In many cases it is better than acetal and polyamides (PA)," said Sandeen. "It can replace even high temperature resistant polymers in tribological applications." PK also offers good hydrolytic stability, low permeability, good weld line strength, and good processability with shorter cycle times compared to other technical polymers such as PA 66 and acetal. "The polymer's low wear rate offers excellent advantages for gear wheels and bearings," said Sandeen. "Its low water absorption makes it suitable for applications where parts come in contact with moisture, and its high level of chemical resistance makes it suitable for applications such fuel filters and other fuel system components. Its chemical resistance together with its mechanical properties and tribological performance makes it particularly suited for stock shapes and seals. The LUVOCOM 70 line consists of three grades: 70-9045 reinforced with carbon fibres; 70-9046 lubricated with PTFE, and 70-9113/BK formulated for low wear and friction. Lehvoss will also develop made-to-measure compounds based on customers' needs.