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VOLUME -27 NUMBER 10
Publication Date: 10/1/2012
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October 2012 Issue
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Victrex Peek Reduces Weight and Boosts Reliability
Complex, precision products molded from Victrex PEEK polymers.
West Conshohocken, PA — The 90-Series high flow PEEK polymers from Victrex were developed specifically for thin-walled, intricate component applications and offer higher mechanical properties with improvements in modulus, toughness, and coefficient of thermal expansion. Available in unfilled, carbon and glass-filled grades, these specialty polymers help facilitate the replacement of metals, thermosets, and ceramics due to their ability to reduce weight up to 80 percent and improve reliability due to their inherent thermal and mechanical properties.
When Mold Craft, a mold designer that specializes in small, intricate components, was challenged with molding a funnel tip with a 0.038cm (0.015-in.) wall by 0.945cm (0.372-in.) long followed by a 0.020cm (0.008-in.) wall by 0.254cm (0.100-in.) long, they selected VICTREX 90G as their material of choice for the application. These polymers are widely specified in applications like brackets, clamps, stand-offs and fasteners for the aerospace industry due to the significant weight savings achieved that increase the fuel economy of the aircraft. Automotive bearings and bushings made from PEEK thermoplastics also help to reduce vehicle weight and have no creep deformation after running at 5,000 RPM continuously for more than 2,000 hours, which improves the overall fuel economy and reliability of the vehicle.
In electronics, VICTREX 90-Series grades are used in connectors, capacitors, sensors, bobbins and switches due to lower outgassing, increased ductility, higher knit line strength, and the ability to withstand the lead-free soldering process which can reach temperatures up to 280°C (536°F).
With higher filler loadings, up to 60 percent of the total polymer weight, the VICTREX 90-Series grades are outperforming materials like liquid crystal polymers (LCP), polyphenylenesulfides (PPS), and ceramics because of their enhanced mechanical properties and toughness. Also, these highly-filled PEEK compounds have similar, or sometimes lower, viscosities versus LCP, PPS, and epoxy thermosets. This leads to shorter cycle times and lower manufacturing costs due to faster crystallization and smoother melt flow during the injection molding process.
The polymers exhibit outstanding chemical and hydrolysis resistance including showing no loss of tensile or flexural strength after conditioning at 200°C (392°F) in 1.4MPa (203psi) steam for over 2,500 hours. VICTREX 90-Series PEEK also shows very consistent electrical properties after high temperature exposure.
For supply assurance and peace of mind for engineers, designers and sourcing professionals, Victrex has the ability to provide PEEK polymers at a time when many other polymer manufacturers are struggling to keep up with customer demand. Victrex has a proven track record of investing in capacity ahead of demand, creating a stable supply position for its global customers in aerospace, automotive, and electronics.
Contact: Victrex USA, Inc., 300 Conshohocken State Road, Suite 120, West Conshohocken, PA 19428
800-842-8739 or 484-342-6001 fax: 484-342-6002 E-mail: email@example.com Web:
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