Plastics Technology

SEP 2018

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Page 69 of 91

NPE2018 yielded lots of news in materials and additives. While most of it was reported in our April, May, and June issues, there's still more to report. New developments in engineering resins and customized TPEs reflect trends toward electric and autonomous vehicles. Other new materials include bioplastics, polyolefin film materials for packaging, and novel PVC formulations. There are also new additives ranging from unique functional additives for barrier to a novel conductive additive. A RANGE OF ENGINEERED PLASTICS A new series of PC compounds for structural compo- nents was unveiled by SABIC ( Thermocomp HMD-D comprises six grades of glass- reinforced PC said to deliver a unique combination of stiffness and ductility to enable lighter, thinner, stronger parts. Metal-replacement applications range from smartphone cases to medical-device housings and mass-transit interior panels. Here's more news in engineering resins, TPEs, bioplastics, poly- olefin film grades, PVC, and a range of additives from the Big Show not reported in all our other previous coverage. News in Materials & Additives Ascend Performance Materials (, discussed new nylon 66 copolymers for films in food (e,g., meat and bones) and industrial packaging (e.g., aircraft parts) that are said to combine clarity and better puncture resistance than nylons 6 and 66. They are also being explored as the inside layer of 3-5 layer HDPE resin pellet bags for improved strength that would allow downgauging. New nylons were also highlighted by Lanxess (, adding to several others on which we have previously reported. A key focus was on a new heat-stabilization system, XTS2 (Xtreme Temperature Stabilization) for nylon 66. This system is reportedly able to withstand long-term temperatures of up to 446 F (230 C), providing an alternative to more costly high-heat specialty ther- moplastics like fully or semi-aromatic nylons or PPS. The first grade from the STS2 range is Durethan AKV35XTS2 with 35% glass, which boasts considerably better long-term heat aging than nylon 66 with a standard copper-based stabilizer. The new nylon boasts enhanced flow, which improves surface quality and filling of complex geometries and thin walls. It is designed for auto engine applications that are exposed to unusually high temperatures, such as air-intake manifolds with integrated charge-air coolers or air pipes located near the turbocharger. Radici Group ( also has developed glass-rein- forced nylon 66 grades for automotive that can withstand tempera- tures up to 410 F (210 C). To support increasing demand for electric vehicles, Radici has developed flame-retardant blends of nylons 6 and 66 for recharge sockets and battery housings and cell covers. MATERIALS AND ADDITIVES AT NPE2018 SABIC's Thermocomp HMD-D boasts a combination of high modulus and ductility for lighter, thinner and stronger parts. Like others with a focus on mobility trends, Lanxess has new lightweighting materials and technologies that help to extend the range of electric vehicles. 68 SEPTEMBER 2018 Plastics Technology NPE WR AP-UP

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