New high-temperature polyamides for severe usage conditions


Polyamide (PA) is a versatile family of semi-crystalline engineering thermoplastics widely used in fibers, fabrics, films, as well as in molded parts, for its toughness, broad chemical resistance, and good thermo-mechanical properties. Over the last decade, breakthroughs in molecular manipulation of the base polymer and innovative additive systems have extended performance of PA materials at elevated temperatures and in aggressive chemicals, enabling this workhorse resin family to compete directly with more exotic, costly, and harder to process thermoplastics like polyphenylene sulfide (PPS) and polythalamide (PPA), as well as with heavier, slower processing thermosets like bulk-molding compound (BMC).

For automotive underhood components, this means automakers have been able to lengthen warranties, and consumers can now go longer between service intervals and drive greater distances before replacing parts. It has also enabled thermoplastics to replace heavier aluminum and more costly stainless steel in engine and powertrain applications, helping to reduce vehicle mass, improve engine efficiency, and lower greenhouse-gas emissions.
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