High-Performance Composites

NOV 2014

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.

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N O V E M B E R 2 0 1 4 | 5 1 N O V E M B E R 2 0 1 4 | 5 1 Si2 made its maiden fight on June 2, 2014, taking off from Payerne Airport, Switzerland, at 5:36 a.m. on a cloudy morning. With test pilot Markus Scherd- el at the controls, it few for two hours and 17 minutes, reaching an altitude of 1670m/5,492 ft before landing. Although global circumnavigation is still ahead, Rocher is convinced that "without TPT lightweight material, Si2 would not be able to fy around the world." Looks like a winner Formed in late 2009, NTPT has soared upward, averaging 50 percent annual growth, in part because the company targeted frst what it calls the "fast-entry market," of which Solar Impulse is an example, because validation processes take only a few months. But NTPT is now entering aerospace applications where weight savings are critical but the cost of certifcation is much greater and earning a place on a project can take years. Beyond the aerospace sector, the company anticipates markets for its product in any applications where people are "looking for performance and weight saving," Rocher says. Decision SA, for its part, has gained invaluable practical expertise in the use of NTPT material, Cardis says. "The Si2 has been an incredible R&D experience and now Decision SA claims the distinc- tion to be a unique, experienced builder of extremely light composite structures using NTPT products." And NTPT's test results indicate that NTPT's thin-ply laminates not only help manufacturers reduce mass and save money, but also offer superior performance. NTPT contends that its TPT process produces the world's lightest prepreg tape. "All PAN-based carbon fbers can be spread down to 30 g/m 2 [fber weight] and intermediate-modulus fbers can be L E A R N M O R E @ w w w. c o m p o s i t e s w o r l d . c o m Read an enhanced version of this article at short.compositesworld.com/IM-NTPTSi2. Read more about North Technology Group's unique yacht sailmaking process in a previous Focus on Design feature article, titled "Custom-engineered composite performance yacht sails" (HPC March 2012, p. 62) or visit short.compositesworld.com/8kX6ogwR. Working with Composites One gives you access to a unique partnership that starts with our PEOPLE, from regional customer service reps and technical engineers, to local support teams at over 35 distribution centers throughout North America. As your partner, we'll help you find everything you need, make sure you receive it when you need it and do what it takes to help grow your business including offering you emerging market expertise and process application know-how. And we'll provide you with the unmatched service and support that you should expect from the nation's leading composites distributor. That's the power of Partnership. The Power of One – Composites One. 800.621.8003 | www.compositesone.com | www.b2bcomposites.com People | Product | Process | Performance "At Composites One, we make it our business to know your business." Gary Yoder, Driver, Goshen, IN spread to 18 g/m 2 from 12K tows," says Rocher. The lower limit for pitch fbers depends on flament diameter, modu- lus and strength. For example, NGF YSH70A 780-GPa/10-micron pitch fbers from Nippon Graphite Fiber Corp. (Cy- prus, Calif.) can be spread down to 40 g/ m 2 . Rocher argues that NTPT's process also offers heretofore unavailable pro- cessing speed: "Thanks to our fast ATL technology, TPT is a serious option to solve the productivity increase that air- craft OEMs must achieve." Rocher also claims that NTPT's technology enables effcient spreading of all types of fbers in untwisted yarns or tows, including not only PAN and pitch carbon, but glass, ar- amid, quartz, UHMWPE and even metal- lic fbers. A 14-micron quartz fber from Saint-Gobain Quartz SaS (Nemours, France), for example, can be spread to form a tape with an areal weight of only 17 g/m 2 . Simply put, NTPT is fying high.

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