Polyamide Blends for Lightweight Construction
Blends of polyamide with chemically coupled polypropylene form the basis for the Akromid series from Akro-Plastic GmbH, Niederzissen, Germany. The specific focus here is on low density, chemical resistance and good adhesion between the blend partners. The use of both glass and carbon fibers continues to drive advances in lightweight design. Long glass fibers are also used as they are superior to chopped glass fiber-reinforced components from polyamide with higher filler content. Even at 120 °C, the grade B28 LGF 40 1 L with its long glass fibers confers greater strength than a chopped glass fiber-reinforced polyamide with 50% glass fiber, says the manufacturer.
Akromid B3 ICF 20 1 L possesses a combination of high weight reduction potential (compared to that of unreinforced PA) and good mechanical properties. The manufacturer says that the weight can be further reduced through the use of blowing agents. Akroloy Para ICF 40 is a very high strength polyamide blend that possesses a good surface finish.
The products in this series with reduced moisture absorption have been joined by an equally highly reinforced product: Akromid B3 GF 60 RM 4-M, which finds application in, e. g. fan blades. Furthermore, the production concept underpinning the ICX technology, which has so far been implemented only in Germany, can also be deployed in the plants in China and Brazil and is thus globally available (see p. 118 in this issue). The technology lies behind the production of flame-retardant products of high quality across the board, and the electrically neutral compound series Akromid EN.
Akrotek PK-VM CF 10 TM, a polyketone-based product, has also been added to the product portfolio and provides high elasticity despite being reinforced with carbon fiber.
Hall 6, booth B42
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