RECYCLED COMPOUNDS | MATERIALS
feedstock and depending on the availability of suitable material, the amount of recycled plastic in the packaging is to be further increased in the future. The technology to recover the PP is cur- rently still in its infancy and only limited quantities of chemically recycled PP are currently available. The chemically recycled PP used in the cup is manufactured with Borealis’ Borcycle C range of chemical recycling solutions. Avient is supplying BIC with reSound R recy- cled-content TPE for a new sustainable women’s razor, providing a soft, grippy feel that is highly colourable. The high performance TPE has a recycled content of 62%. By combining reSound R TPE with a transparent plastic that also has recycled content, the BIC Soleil Click 5 handle reaches over 40% recycled content in total. Avient adds that it is able to increase the overall
percentage of recycled content in additional reSound R grades to over 80% at performance comparable to prime grades. These grades can replace traditional TPEs in personal care, lawn and garden, outdoor high performance, footwear, office supplies, houseware durables, and automotive applications. Avient has also made Complēt R long fibre-rein-
forced composites commercially available, which incorporate post-consumer recycled PA 6 material reclaimed from end-of-life fishing nets. “We’re delighted to be introducing our first recycled-con- tent long fibre composite material in a planned larger portfolio based on recycled resin,” says Eric Wollan, General Manager for Long Fiber Technolo- gies. “Historically, it has been a challenge to source streams of recycled resins that are compatible with the pultrusion process used to manufacture long fibre composites. But we’re committed to leading the industry by offering sustainable options even in our performance-critical materials like long fibre composites.” Potential markets for Complēt R PA 6 long fibre
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composites contain companies whose products involve structural applications often deployed in demanding environments. Examples include lighter-weight adventure gear for outdoor recrea- tion, next-generation vehicles that go further using fewer energy resources and recycled-content office furnishings that contribute towards LEED certifica- tion for buildings. Avient says that Complēt R PA 6 long fibre composites provide stiffness, strength, and tough- ness performance on par with standard PA 6 long fibre formulations using virgin resin, giving these materials the structural capability necessary to be used as an alternative to metals. Formulations are available globally in a standard black colour at typical weight percentages of long glass fibre, long carbon fibre, or hybrid combinations. Levels of post-consumer resin content vary within the offer- ings, which allows end products to meet different performance and sustainability requirements. Covestro is collaborating with Netherlands company Fairphone on the use of circular material solutions for its ethical smartphones. Fully and partly recycled thermoplastic polyurethanes (TPU) are used in the protective case of the Fairphone 3 and its successor, the Fairphone 4. Products from Covestro’s post-consumer recycled PC range are used in the Fairphone 4’s rear device cover, middle frame and wireless charger. With a PCR content of 30-50%, this Makrolon PC portfolio has physical properties comparable to virgin material and offers good impact strength, bal- anced flow behaviour, and high stiffness and flame retardancy to ensure a long service life while reducing carbon dioxide emissions by 30% compared to virgin material. Covestro has also developed a new range of
recycled and partially recycled TPUs of the Desmopan brand, which are now used in the protective cover of the Fairphone 4 and are certified according to RCS (Recycled Claim Standard), an international standard for the traceability of recycled raw materials within supply chains. This includes Desmopan 3095AU RC100, which was developed after identifying several streams of post-industrial recycled plastics. The fully recycled material exhibits the typical advantages of TPU, for example, high chemical and abrasion resistance, but easier processability because it melts at lower temperatures and flows better than virgin material. The product has proven itself when used in the protective case of the Fairphone 3 and is now being used in the Fairphone 4. It is available in
Left: A partner- ship with Reclay secures plastic waste for Borealis to convert and revalorise in high quality recyclate materials
Left: The BIC Soleil Click 5 women’s razor handle utilises Avient
reSound R TPE with 62% recycled content
April 2022 | INJECTION WORLD 39
IMAGE: RAAN GMBH
IMAGE: AVIENT
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