Lehmann&Voss&Co. announces 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 POM and high performance polymers such as PPS, PEI and 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 Holger Vandrich, Product Development LUVOCOM. 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, Lehmann&Voss&Co. 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 POM and PA“, said Vandrich. “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 POM.
The polymer’s low wear rate offers excellent advantages for gear wheels and bearings. Its low water absorption makes is suitable for applications where parts come in contact with moisture, and its high level of chemical resistance makes it suitable for applications in 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 fibers; 70-9046 lubricated with PTFE, and 70-9113/BK formulated for low wear and friction. Lehmann&Voss&Co. will also develop made-to-measure compounds based on customers’ needs.