Materials

Bio-composites update: Beyond eco-branding

No longer dependent only on their green credentials, some suppliers of bio-based fibers and resins are competing on price and performance.

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Prepregs

LFI process: Molding strong and attractive spa enclosures

Dynasty Spas (Athens, Tenn.) finds a composite alternative to wood hot tub surrounds in a polyurethane (PU)-based long fiber injection (LFI) solution implemented by Romeo RIM Inc. (Romeo, Mich.).

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Aerospace

In-house prepregging: Cost/benefit calculus

Scaled-down systems are flexible enough for R&D and production, but can they earn their keep?

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Space

U.S. crew and cargo candidate takes shape with composites

Crew-capable Dream Chaser to enable ISS transport missions from U.S.

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Natural Fibers

Graphene: Ready for prime time?

Advanced materials analyst Ross Kozarsky (Lux Research, Boston, Mass.) evaluates the commercial readiness of graphene-based nanomaterial reinforcements for the composites industry.

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Carbon Fibers

New carbon fiber lab at Oak Ridge officially launches search for cheaper fiber

The search for a non-PAN precursor that can produce high-quality carbon fiber begins in earnest in Tennessee at the just-opened Carbon Fiber Technology Facility.

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Weaving

Pultruding polyurethane: Sheet pilings break boundaries

High-pressure pultrusion process creates polyurethane composite sheet pile system with the strength and stiffness to compete with steel.

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Evolution of tailored D-LFT

In the past two decades, two competing composite technologies — sheet-form glass-mat thermoplastic (GMT) and pelletized long-fiber thermoplastic (LFT) — led to the development of a new form of glass-reinforced thermoplastic composite.

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Automotive

Chevy Volt battery pack: Rugged but precise

GM and partners engineer composites for this complex assembly with an accent on repeatability.

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Automotive

JEC 2013 at first blush

CT Editor-in-chief Jeff Sloan risks some immediate reactions to his week in Paris at the JEC Europe 2013 composites trade show.

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