RECYCLED COMPOUNDS | MATERIALS
evaluation programme include odour/volatiles, ash, density, melt flow rate, Charpy impact, tensile and flexural property testing. Testing flow proper- ties gives a good understanding of the processing behaviour of recycled materials. The response of different batches and blends can be checked with a basic melt flow rate (MFR/MVR) determination by utilising melt flow testers. Unknown and mixed materials, like those involved in recycling, require a variety of testing conditions, including several different test masses. A wide range of materials suppliers are now
offering injection moulding compounds which incorporate mechanically recycled plastics. Large polymer producers are also using chemically recycled waste in new versions of their existing materials that are then certified as having a percentage of recycled plastics, calculated using a mass balance approach.
Automotive compounds Ford Motor Co is using Akulon RePurposed recycled ocean plastic from DSM Engineering Materials in the Ford Bronco Sport. Ford uses wiring harness clips made of ocean-harvested plastic “ghost gear” in Bronco Sport models. The wiring harness clips fasten to the sides of the Bronco Sport second-row seats and guide wires that power various features in the vehicle’s cargo area. Ford testing shows that the Akulon RePur- posed material, despite having spent time in salt water and sunlight, is as strong and durable as petroleum-based plastic clips. The Akulon RePur- posed material is made using nylon fishing nets collected from the Indian Ocean and Arabian Sea. The nets are thoroughly cleaned and processed using a proprietary process to create a strong PA6 engineering material with performance compara- ble to new petroleum-based plastics. The material is also used in a wide range of applications including furniture, watches and surf boards.
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RadiciGroup has launched the Renycle range of engineering polymers which contain recyclate. The Renycle PA6 and PA66 products include a variable percentage of post-industrial and post-consumer recycled polymers, which are the result of careful selection from incoming raw materials and ad- vanced mechanical characterisation. The company says that Renycle products are suitable for applica- tions in all RadiciGroup High Performance Polymers’ target markets, including automotive, e-mobility, electrical/electronics, industrial and consumer goods. In the new range, there is also a glass-fibre- filled flame retardant product that is halogen- and red phosphorus-free and a material resistant to engine cooling fluid for the automotive sector. Repsol has added new products to its Reciclex
range of recycled polyolefins, including four polymers for the automotive industry and three new circular PP grades for non-food containers, incorpo- rating up to 80% recycled plastic content. The four new automotive materials are designed for vehicle lighting systems, hidden interior parts, and under- the-hood parts with strict mechanical stress resist- ance requirements. Repsol says that it uses post- consumer plastics to manufacture these materials, offering quality consistency for its products to meet
Above: Wiring harness clip for the 2022 Ford Bronco Sport made with DSM Akulon RePurposed recycled ocean plastic PA6
IMAGE: DSM
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