composites | Processing
Right: Pellets containing recycled carbon fibre from WIPAG
German company WIPAG has just completed a carbon fibre recycling facility and is supplying thermoplastic composites with recycled carbon fibre reinforcements for injection moulding. The company sources production waste from the car manufacturing industry, as well as end-of-life vehicles. “We can now offer a full range of thermoplastic
quality and the safety of vehicle interiors. According to RTP, its PP VLF materials are designed
for structural use and provide good strength, stiffness and dimensional accuracy, with reinforcement levels of 20-50 weight percent. The company says that they have been tested and authenticated by approved outside laboratories according to German Automotive Industry (VDA) test methods for odour, fogging and total VOC emissions. Results from VDA test methods show that the PP VLF products meet or exceed OEM requirements in all three categories. Automotive applications include instrument panels, door module carriers, overhead and centre consoles, seating, load floors, pedal boxes, spare tyre covers and storage bins.
Recycling matters One of the challenges for the composites sector in the past has been recycling, which has been difficult to achieve without a significant downgrading of perfor- mance. However, an increasing number of organisa- tions are now getting involved in carbon fibre recycling.
composites with up to 40% recycled carbon fibre, from polyamide and polypropylene to polyphthalamide (PPA) and styrene maleic anhydride (SMA),” says marketing manager Simone Wiedemann. “All are suitable for a full range of injection moulding applications, similar to those for glass fibre reinforced materials.” The company adds that the mechanical properties
are good. For example, a PA 6 material with 40% recycled carbon fibre has an impact resistance of 60kJ/m2
, notched impact resistance of 9kJ/m2 , tensile
E modulus of 27,000MPa and tensile strength of 210MPa. Similarly, PP with 30% recycled carbon fibre can offer an impact resistance of 48kJ/m2 impact resistance of 8kJ/m2
, notched , tensile E modulus of 13,000MPa and tensile strength of 90MPa.
Click on the links for more information: ❙
www.engelglobal.com ❙
www.basf.com ❙
www.kraussmaffei.com ❙
www.sumitomo-shi-demag.eu ❙
www.victrex.com ❙
www.arburg.com ❙
www.plasticomp.com ❙
www.rtpcompany.com ❙
www.wipag.de
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