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Polyamide

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By: Karen McIntyre

Editor, Nonwovens Industry

Stanyl, a high-heat polyamide 46 (PA46) resin from DSM Engineering Plastics, is adding a new market segment, fiber and film, to its existing portfolio of injection molded, high-tech and high-heat engineered applications. As with injection molded designs, Stanyl-based fibers and films benefit from the material’s unusually high crystallinity and resulting extraordinary mechanical pro­perties, as well as its high melting point. In fiber and film, Stanyl adds a new side: it can be soft and supple.

Processing of Stanyl into filaments or sheets can be accomplished with standard equipment running at temperatures slightly higher than conventional materials.

Because Stanyl does not cross-link under heat, the material presents processing advantages as well. It does not gel or build up in equipment internals, even when subjected to long dwell times in mixers, injection screws and extrusion dies. In fact, the viscosity of Stanyl becomes lower with heat aging, making it in effect self-cleaning, avoiding the periodic line stoppage and tear-down required to clean out gels formed by other PA types.
www.dsm.com

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