'Breakthrough' Acetal Homopolymer for High-Performance Gears
Offers high creep resistance and fatigue durability for automotive, e-bike and other high-performance applications.
A new high molecular weight nucleated acetal homopolymer has been specially formulated for use in applications requiring high creep resistance and fatigue durability. Available from Delrin, now a polymer business unit within DuPont, grade 51HSE reportedly extends the ability of the material to replace metal, helping customers save cost and weight while reducing noise. It also is said to enable smart design concepts that are beneficial for achieving lower carbon footprints.
The Delrin business unit was established last month when DuPont has sold an 80.1% ownership interest in this business to TJC LP (TJC).
Testing shows the improvement in static gear strength of Delrin 51HSE is about 10%, but the real benefit comes reportedly comes from a two-fold improvement in durability, giving customers a cost-effective alternative over switching from metal gears or other more expensive solutions.
In a lab fatigue test, Delrin 51HSE was tested against Delrin 100CPE and a high-viscosity acetal copolymer at 80°C, 30 Hz, and 21.6 MPa load. Delrin 51HSE clearly shows a significant improvement over the comparison products. Source: Delrin
“Driving innovation remains an intrinsic element of our DNA,” said Sriram Nadathur, Delrin vice president and general manager. “Our customers demand materials that demonstrate unparalleled mechanical performance, exceptional durability, and low global warming potential, without compromising on design flexibility or ease of manufacturing. Innovations such as Delrin 51HSE are the reason why our customers know they can depend on us to deliver world-class resins that fit their most demanding end-use applications.”
Related Content
-
Melt Flow Rate Testing–Part 1
Though often criticized, MFR is a very good gauge of the relative average molecular weight of the polymer. Since molecular weight (MW) is the driving force behind performance in polymers, it turns out to be a very useful number.
-
The Fantasy and Reality of Raw Material Shelf Life: Part 1
Is a two-year-old hygroscopic resin kept in its original packaging still useful? Let’s try to answer that question and clear up some misconceptions.
-
Automotive Awards Highlight ‘Firsts,’ Emerging Technologies
Annual SPE event recognizes sustainability as a major theme.