Resins

New infusion regime for superthick laminates

 Innovative initiator chemistry yields long flow time, cure on demand and exotherm control for large, thick parts.

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Carbon fiber-reinforced polyamide performs in engine part

When École Polytechnique de Montréal (Montreal, Canada) developed a race car to enter in the 2010 Formula SAE competition, it turned to Solid Concepts Inc. (Valencia, Calif.) and additive fabrication for help.

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The key to CNTs: Functionalization

An emerging supply base is integrating carbon nanotubes into commercial products that enable composites manufacturers to optimize part performance.

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Tough I-beam bridge for tank traffic

Immiscible polymer blending combines the strength of HDPE and the stiffness of glass-reinforced PP to create I-beams with specific strength greater than steel.

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Thermoplastic tubulars: Robust flexibility for offshore wells

In the oil and gas industry, a fiber-reinforced thermoplastic composite pipe (TCP) system from Airborne Composite Tubulars (The Hague, The Netherlands) is providing a less-expensive alternative to the traditional “rig” for flushing subsea wellhead stacks and injecting glycol under pressure.

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Resins for the Hot Zone, Part II: BMIs, CEs, benzoxazines and phthalonitriles

Next-generation aerospace programs demand higher temperatures for structural and hot-section components, fostering advances in thermoset resin chemistry.

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Resins for the Hot Zone, Part I: Polyimides

 As next-generation aerospace programs demand higher service temperatures in structural and hot section components, a variety of polyimides vie for program approval.

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Urban turbine redesign taps benefits of additive fabrication

Michael R. LeGault details efforts to produce an anti-icing system for “small-wind” vertical-axis wind turbine blades.

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Direct manufacturing of military aircraft parts

 Laser sintering process shortens lead time, simplifies production of complex, high-performance parts.

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Composite engine valves?

 HPC technical editor Sara Black reports progress on CFRP intake and exhaust valves for race car engines.

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