Printer Friendly

Special glass makes wind blades lighter.

[ILLUSTRATION OMITTED]

The trend toward longer wind-energy blades requires composites that are stiffer, lighter, or both. One alternative to conventional E-glass is carbon fibers, which have disadvantages of cost and availability, as well as in fiber straightness, wet-out, and compression properties. A less expensive option is ZenTron S-glass fibers from AGY, Aiken, S.C. ZenTron boasts 28% higher stiffness/weight ratio than E-glass.

The company sponsored a study by the Knowledge Centre-Wind Turbine Materials and Construction in Wieringermeer, Holland, and the Compositec composite materials resource center in Le Bourget-du-Lac, France. They examined the mechanical performance of vacuum-infused unidirectional ZenTron roving in epoxy. The study found that ZenTron could provide up to 25% weight reduction in the unidirectional spar cap and trailing-edge components of a wind blade, permitting up to 11% total weight reduction in a 62.5-meter (205-ft) blade compared with E-glass. Tel: (888) 434-0945 * www.agy.com
COPYRIGHT 2007 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2007, Gale Group. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:KEEPING UP WITH: Composites
Publication:Plastics Technology
Date:Nov 1, 2007
Words:148
Previous Article:Desiccant system for multilayer bottles.
Next Article:Powder coating for in-mold painted SMC.


Related Articles
Agencies that fight child abuse win big.
A question of standards.
Fiscal fitness.
Hurricanes.
Earthquakes.
Monomers drive up polyolefin prices.
Light does some weird math.

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters