Two new developments in high-performance polyketone resins offer a choice of lower cost or higher performance relative to existing PEEK materials. First, Solvay Advanced Polymers, LLC, Alpharetta, Ga., introduced an expanded line of six modified PEEK grades that offer strength, stiffness, toughness, and heat and chemical resistance comparable to standard PEEK but at up to 30% cost reduction. Melt viscosity and processability is also similar to standard PEEK. The AvaSpire AV-700 series is designed to fill the cost/performance gap between PEEK and crystalline resins such as PPS, LCP, and PPA. Previously, only one grade was available with 40% glass fiber. Added to that now are unfilled resin, a grade with 30% carbon fiber, and three wear-resistant grades. Second, Victrex Polymer Solutions, W. Conshohocken, Pa., has come out with a new polyarylketone called Victrex ST Polymer (photo). This is a crystalline PEKEKK designed to meet needs for improved mechanical performance at higher temperatures while maintaining the purity, chemical and electrical resistance, dimensional stability, and low moisture absorption of Victrex PEEK. Mechanical properties at room temperature are comparable to those of PEEK, but properties at 150 to 200 C (302 to 392 F) are higher than even the Victrex PEEK-HT (high-temperature) series. Unfilled Victrex ST G45 has a melting point of 389 C, glass-transition temperature (Tg) of 164 C, and HDT @ 1.8 MPa of 172 C. Victrex ST 45GL30 with 30% glass, has an HDT of 380 C. Melt viscosity is similar to or lower than that of standard PEEK. (800) 621-4557 • www.solvayadvancedpolymers.com 800-VICTREX • www.victrex.com
Victrex USA Inc.
300 Conshohocken State Rd West Conshohocken, PA 19428
Phone (484) 342-6001 Fax (484) 342-6002