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Recycled content for automotive interiors

Recycled content for automotive interiors

News 27.08.2021

Dryflex Circular TPEs were developed to support the shift from finite fossil-based virgin materials. They were launched in 2019. Recycled polymers from various sources, including Post-Consumer (PCR) and Post-Industrial (PIR), are incorporated into the Dryflex Circular TPEs. They can also be recycled in closed-loop systems at the end of life.

Dr.-Ing. Thomas Köppl, group product manager, HEXPOL TPE, commented, “Recent developments resulted in us bringing the first TPE with recycled content for automotive interior applications to the market.”

circular process auto int

Clean Post-Industrial waste streams from plastic part production are incorporated into Dryflex Circular TPE materials for automotive interior applications.

An important aspect of automotive interior parts is their emission behaviour regarding odour and volatile substances. The exact specifications and requirements vary depending on application and OEM. But generally, the material odour must not be disturbing even at higher temperatures (e.g., 80°C). A representative Dryflex Circular TPE grade, a 65 Shore A material for inlay mats with a recyclate content of 20%, showed a very low amount of VOC (60 μg/g) and FOG (594 μg/g).

The TPE was tested at an external accredited laboratory and shown to have almost no odour (grade 2.0 according to VDA 270, B3). The mechanical properties fulfil automotive requirements, and colourability is possible. The material is currently being approved by a German car manufacturer.

The recyclate sources are diverted from waste streams during post-industrial manufacturing processes. They originate from injection moulding sprues or edge trims in extrusions. The chosen recyclates were selected due to their high levels of consistency and purity. With consideration of transportation and energy impacts, the recyclates are sourced in Europe. Dryflex Circular TPEs are produced at HEXPOL TPE’s European sites, which use 100% renewable electricity.

The new Dryflex Circular TPEs can be used in various automotive interior applications such as inlay mats, cup holders, sealing lips and HVAC parts.

Köppl added, “With the recent developments of Dryflex Circular TPE, it is now possible to realise high-performance interior applications. Together with our Circular TPE grades for exterior applications and our biobased TPEs, we are supporting automotive suppliers and OEMs to fulfil their targets to increase the use of recycled and renewable materials.”

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