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Advanced Engineering 2018

Technifab's New Aerospace Ducting System Features End Caps and Anchors Made of Solvay's AvaSpire PAEK

22 April 2014

Technifab has developed a new high-performance polymeric foam ducting system that features structural components made of AvaSpire polyaryletherketone (PAEK) resin from Solvay Specialty Polymers.

According to Solvay, the new ducting system is a key element of a newly developed aerospace Environmental Control System (ECS) for a major aircraft manufacturer. It says that AvaSpire PAEK provides greater toughness and reduced cost compared to standard polyetheretherketone (PEEK) for interior aerospace applications such as the structural end caps and anchors used in this design. The polymer also offers greater strength, better creep resistance, and improved hydrolytic stability compared to nylon and other competitive engineering thermoplastics that were also considered, according to Jack DeRuyter, Vice President of Business Development for Technifab. The unfilled AvaSpire PAEK grade also meets the Federal Aviation Administration (FAA) Flammability, Smoke Density, and Toxic Gas Emission (FST) requirements.

Solvay says that the injection moulded end caps made of AvaSpire PAEK serve as part of a rigid connector system for the ducting. The 0.25cm thick end caps, which range in diameter from 5.1 to 15.2 cm, are attached to the ducting with an epoxy-based adhesive. AvaSpire PAEK is also used to injection mould the anchors that serve as mounting brackets for the ducting. They have the same dimensions as the end caps and are also attached to the ducting with an adhesive.

Solvay says Technifab’s new ducting system is being installed on current airframes produced by major aircraft manufacturers. 





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