High-Performance Composites is read by qualified composites industry professionals in the fields of continuous carbon fiber and other high-performance composites as well as the associated end-markets of aerospace, military, and automotive.
Issue link: https://hpc.epubxp.com/i/302679
NEW PRODUCTS 7 4 | H I G H - P E R F O R M A N C E C O M P O S I T E S No is ft Feeder Automatic R inder • Package is wound to preset length, doffed and transferred to creel magazine automatically • Ideal for CF, 3K-24K, Aramid fibers, Ceramic fibers, Glass Fibers, etc. • Unique mechanism controls tension automatically at same level, from full to empty package. • For pre-preg, pultrusion, weaving, etc. IZUMI INTERNATIONAL, INC. 1 Pelham Davis Circle, Greenville, SC 29615 Tel: 1-864-288-8001 Fax: 1-864-288-7272 E-mail: hpc@izumiinternational.com Website: www.izumiinternational.com Self-Tensioning Creels • For flat fiber fabric requiring no twist for aesthetics, physical properties, fabric thickness • For rapier as well as projectile weaving machines MRO-friendly PMI foam core Evonik Industries AG (Essen, Germany) took the unusual step of developing a new polymethacrylimide (PMI) foam product that can mimic honeycomb core's tendency to permit visible laminate damage. Evonik's spokesperson Mary Er- win explained that during mandatory aircraft inspections, it is the damage that does not show on aircraft surfaces that most concerns maintenance and repair organization (MRO) personnel. Historically (not to mention ironically), Evonik's ROHACELL foam products support the faceskins of aircraft structures so well that minor laminate damage may not be in evidence on the visible exterior surface. Aerospace fabricators report that the free-space between honeycomb walls more easily permits laminate indentation or perforation. For that reason, Evonik developed new ROHACELL HERO PMI foam core. As the photos show, the new PMI foam (left) responds like honeycomb (right), yet still prevents the incursion of moisture that occurs with damaged honeycomb, which — in the temperature extremes endured by aircraft — can freeze and thaw, causing faceskin/core delamination. www.rohacell.com 3-D CNC-machining center Thermwood (Dale, Ind.) featured its Model 77 5-axis CNC machining center for large aerospace composites applications. The M77 is specifcally developed for three-dimensional machining. Its stationary table and high-wall enclosure was designed with advanced 3-D software, using fnite element analysis. All major weldments are stress-relieved to provide long-term stability. Laser-cal- ibrated to assure accurate absolute positioning and repeatability, it features full, 5-axis simultaneous motion, executes extremely large CAD-generated programs at high speed without pausing, and self-performs automatic axis- alignment verifcation. Available in standard 5-ft by 10-ft (1.5m by 3m) and 10-ft by 10-ft formats, the center's table length can be increased on request in 5-ft increments to a 60-ft/18.3m maximum. www.thermwood.com TP-sized CF Toho Tenax Europe GmbH (Wuppertal, Germany) talked about the impending launch of a Tenax carbon fber fla- ment yarn with a new tailored sizing for thermoplastic and high-temperature applications. The commercialization of Tenax-E HTS45 P12 (12K, 800tex) and Tenax-E IMS65 P12 (24K, 830tex) is planned for 2014. Both new fber types will be produced at the company's production site in nearby Oberbruch and will be globally available. Both yarns are compatible with PEEK, PPS, PEI and other high-temperature thermoplastics as well as low-temperature polyamide based systems (PPA, PA12, PA6, etc.). The P12 sizing also allows low viscos- ity and in-situ reacting thermoplastics to be combined with Tenax fber. Both fbers can be processed as commingled yarn, woven fabrics, multiaxial fab- rics and 3-D fabrics, and are suitable for pultrusion and prepreg processes. www.tohotenax-eu.com Nonhalogenated flame retardants Clariant (Muttenz, Switzerland) highlighted the advantages of its nonha- longenated, phosphinate-based Exolit OP range and Exolit AP range of fame retardant (FR) additives. Designed initially for the electronics and electrical equipment markets, the Exolit OP range is said to offer high thermal stability and good property profles at comparably low doses in epoxy and polyester resin systems used in commercial aircraft interior composites applications. The Exolit AP range, based on ammonium polyphosphate, is formulated for use in thermoset resins that form the matrices in fberglass-reinforced composites. Intended as a replacement for brominated and chlorinated FR products, the AP range can be used alone or in combination with ATH. "Halogenated fame retardants quench the reaction in the fame zone," says Dr. Adrian Beard, the head of marketing and advocacy for fame retardants in Clariant's Additives business unit, "but they create a lot of smoke. So in addition to the environ- mental problem, there is the aspect of smoke toxicity in case of fre." Further, most FR additives must be mixed with other products to create an intumes- cent layer that foams and hardens to isolate fammable materials from oxygen. 0514HPC NewProducts-OK.indd 74 4/22/2014 3:37:25 PM