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Using nature as a model for low-friction bearings
Date:5/14/2014

reduced the friction by two orders of magnitude around a factor of 90 compared to a system comprising just one type of polymer."

Measurements with an atomic force microscope at the University of Twente in the Netherlands verified the results. "The two different phases of the liquid separate because they repel each other. This simultaneously holds the polymers back and prevents them from protruding beyond the borders," says Dr. Sissi de Beer, who recently moved from Mser's group to the University of Twente.

The low-friction two-component lubricant is interesting for numerous applications. One example are simple piston systems, like syringes, which are used to precisely administer even tiny amounts of a drug. Above all, the new process could provide low-friction solutions where high pressures and forces occur locally for example, axle bearings and hinges. For the most common lubricant engine oil an alternative has yet to be found; conventional polymer brushes are unable to withstand the high temperatures.


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Contact: Tobias Schlößer
t.schloesser@fz-juelich.de
49-246-161-4771
Forschungszentrum Juelich
Source:Eurekalert  

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