UNDER THE HOOD | AUTOMOTIVE
Additional examples are noise-absorbent and vibration-absorbent components in gearboxes, engines and pumps, and also includes connectors, screwed cable glands and fasteners. The initial successes include an application that is used in the lubrication circuit of a 2 litre diesel engine, in permanent contact with the engine oil and ex- posed to considerable amounts of diesel and blow-by gases during driving with a cold engine. Following an extensive development phase and various basic research investigations, Kraiburg TPE says that it sees tremendous potential for further expansion of this new technology, which has only recently been introduced in the market. “We are currently testing the use of butyl rubbers to improve barrier properties and we’re following various approaches to achieve softer TEH ratings below 50 Shore A,” says Butschkau. “The wide choice of thermoplastics also includes plastics such as PE, PBZ, PET, TPO and TPU to influence certain material properties in specific ways.” Tisan, based in Turkey, produces ETP compounds based on PA6, PA66, PPS and PPA for automotive and other applications. The company says the automotive market is in a transition phase to meet new sustainability demands. In addition, “Under-the-hood conditions have become more challenging and automotive suppliers are looking for highly durable components with thermoplastics,” it says. The company produces its Tislamid line of polyamides with standard and customised formulations for customer requirements, with enhanced properties from toughness to heat resistance. Tislamid 30D03 K02 K06 R02, a 30% glass fibre reinforced, hydrolysis and heat stabilised PA66 material, is an example for applications in engine components. Tisan says: “The type and grade of thermoplastics depend on the specific application and the thickness of the part. For example, a small
difference in the application or design of the end product can make PPS and PPA compounds better solutions.” Tisan has developed PPS materials branded Hyperpol SP with high temperature resistance, chemical resistance, dimensional stability, good electrical properties and inherent flame retardant properties. Hyperpol AP is the trademark for PPA compounds developed by Tisan which have high physical, thermal and electrical properties. These products are stronger, stiffer and have higher thermal resistance than PA66. Chemical fatigue and creep resistance are other significant properties of PPA. Hyperbol AP 30D03 K02 K06 R02 is a PPA compound with glass fibre reinforcement and is heat stabilised for use under the hood. Tisan also offers blend solutions to its customers.
Tisblend AI K06 R02, for example, is a PA/ABS blend that has high hydrolysis resistance for use in oil tank covers.
Plastics additives manufacturer Songwon has developed Songxtend 2721, which improves long-term heat stability, to enable recycled polypropylene to be reused and high durability achieved in automotive interior and exterior applications.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.kraussmaffei.com �
www.sumitomo-shi-demag.eu �
www.arburg.com �
www.ascendmaterials.com �
www.basf.com �
www.lanxess.com �
www.teknorapex.com �
www.radicigroup.com �
www.sabic.com �
www.hexpoltpe.com �
www.kraiburg-tpe.com �
www.tisan.com.tr �
www.songwon.com
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