BASF now offers carbon fiber reinforced polyphthalamide (PPA) with filling rates of 20%, 30% and 40%. The advantage of these new materials is that they can produce extremely lightweight parts, can safely replace aluminum and magnesium without losing stiffness and strength, and are conductive.
The new grade combines these characteristics with the advantages of Ultramid®Advanced N (PA9T), making it unique among the existing carbon fiber reinforced PPAs on the market: due to low water absorption, high dimensional stability, good chemical and hydrolysis resistance, and strength With high modulus and high modulus, the new carbon fiber (CF) reinforced grades can be used to manufacture automotive structural parts for body, chassis and power systems, pumps, fans, gears and compressors in industrial applications, and stable and ultra-lightweight products in consumer electronics.
The mechanical properties of the new carbon fiber reinforced PPA grades can be adjusted through the selection and content of carbon fibers and additive technology. Ultramid®Advanced N3HC8 contains 40% carbon fiber filler and has better strength and modulus than magnesium or aluminum at 80°C (under conditions). The production of parts from magnesium or aluminum also requires additional post-processing and tools, which increases the cost of materials. The new PPA grade has the opportunity to reduce weight by 25-30%.
Combining these new materials with BASF's simulation software Ultrasim® to correctly simulate part behavior and optimize mold geometry, Ultramid®Advanced CF grades can contribute to functional integration and weight reduction in different industries.
By reducing the weight of structural parts or powertrains, the endurance of cars equipped with electronic drives or fuel cell engines can be increased; the light and thin precision structures in consumer electronics products benefit from the high rigidity and strength of the new PPA material, and excellent dimensional stability The new CF grade has good dimensional stability and high chemical resistance, heat resistance and abrasion resistance, it can easily produce heavy, high-load and Long lasting industrial equipment.
Compared with glass fiber reinforced polyamide (PA), carbon fiber reinforced PPA compounds also show lower weight and higher tensile modulus. PPA grade reinforced with 20wt% carbon fiber is about 20% lighter than PA6 or PA66 filled with 50% glass fiber. The tensile strength of Ultramid® Advanced compound reinforced with 20% carbon fiber is better than or equivalent to that of polyamide filled with 50% glass fiber, while showing better processing properties.
For example, Ultramid®Advanced N3HC8 is very stable after aging at high temperatures. After heat aging at 120°C for 5,000 hours or 150°C for 3,000 hours, it can maintain nearly 100% tensile modulus. BASF now offers carbon fiber reinforced polyphthalamide (PPA) with filling rates of 20%, 30% and 40%. The advantage of these new materials is that they can produce extremely lightweight parts, can safely replace aluminum and magnesium without losing stiffness and strength, and are conductive.