MATERIALS: High-Temperature Nylon for Blow Molded Ducts

New Product Announcements From: Plastics Technology

Posted on: 3/1/2013

WEB EXCLUSIVE: DSM Engineering Plastics of the Netherlands (U.S. office in Evansville, Ind.) is offering what reportedly is the first high-temperature nylon for extrusion blow molded air ducts.

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WEB EXCLUSIVE: DSM Engineering Plastics of the Netherlands (U.S. office in Evansville, Ind.) is offering what reportedly is the first high-temperature nylon for extrusion blow molded air ducts. Its development was driven by needs of the automotive marker, where new EU legislation has set stringent emission-reduction targets for 2015. This has led a trend to smaller cars with downsized engines. Neither metal nor injection molded plastic hot charge-air ducts offer the design flexibility needed to fit complex under-hood geometries, unlike air ducts made by blow-molding, according to DSM.
 
Stanyl Diablo OCD 2305 BM, a special heat-stabilized blow molding grade of DSM’s nylon 46, is said to result in hot charge-air ducts that are lighter than metal or PPS. Moreover, it can handle continuous temperatures up to 446 F (230 C), and offers a significant cost benefit compared with PPS, thanks to its lower weight and scrap rate. Its lower density is said to reduce part weight by 7%, and better wall distribution can raise that value to over 10%, according to DSM. As an alternative to metal, it reduces weight and costs, and offers better acoustic behavior.

 


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