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Swiss sports brand On leads supply chain coalition to reshape carbon waste into running shoes.

Schaumstoffe und Vorprodukte

Kreislaufwirtschaft

How CO<sub>2</sub> Becomes a Shoe

Three composites innovations were recognized in each of the three categories – “Products/Applications”, “Processes” and “Research and Science”.

Faserverarbeitung

Kunststoffverarbeitung

Werkzeuge für Faserverarbeitung

Faserverbundwerkstoffe

AVK Innovation Awards 2021

Foam injection molding is a processing technology to produce foamed plastic parts in serials production, attaining an increasing interest and use in industry. However, the applications are limited due to insufficient knowledge of processing and mechanical properties, limited use of light-weight potential as well restricted surface qualities. All these drawbacks are associated with the cellular structure. The structure characteristics like skin layer thickness, cell size, density and uniformity are developed during procedure. Thus, controlling the cell formation process is the key to work against the restrictions and optimize mechanical properties.

Schaumspritzgießen

Schaumstoffe

Spritzgießsimulation

Schäumen / Reaktive Verarbeitung

Industrie 4.0 für die Kunststoffverarbeitung

Controlling cellular structure in thermoplastic foam injection molding – influence of processing and mold technologies

Due to the low thermal conductivity of the polymer matrix, fiber reinforced polymers exhibit a low thermal conductivity compared to metals. By increasing the thermal conductivity and thereby decreasing thermal stresses in the part, an enhancement of its lifetime can be expected.

Beschichten von Kunststoffen

Kohlenstofffasern / -matten

Wärmeleitfähigkeitsmessung

Epoxy Based Carbon Fiber Reinforced Polymers with Enhanced Thermal Conductivity – Structure and Properties

Additive manufacturing, such as the selective laser sintering (SLS), provides the possibility to manufacture structures as 3D-MIDs tool free. The first three-dimensional circuit carriers are already manufactured by selective laser sintering. An established method is the LPKF-LDSprototyping process. Different from conventional 3D-MIDs this process requires an ensuing coating of the additive manufactured circuit carrier with a metal compound containing substance to enable the direct structuring by laser. Commercially available materials for injection molded 3D-MIDs already contain certain additives for laser direct structuring, that can be activated by laser. Thus, the demand for functional powder compounds for the selective laser sintering process to design three-dimensional circuit carriers is mandatory.

Structures and properties of selective laser sintered polyamide- and polyamide-copper-systems for applications in three-dimensional circuit carriers

Expandable polystyrene (EPS, coll. “Styropor”, “Unicell”, “Styrofoam”) is one of the most used foams. It accounts for one quarter of the current foam production in terms of volume. EPS has a multi-scale morphology since EPS parts consist of many fused foamed beads. The foamed beads themselves contain cells, which are formed of walls and struts as well as the cell gas. In this frame, a variation in bead size causes a significant change of surface area, which needs to be moulded, whereas the variation in cell size leads to an altered micro-morphology (cell walls and struts). However, the effect of the multi-scale morphology on the properties has never been studied in a comprehensive manner to the knowledge of the author. Hence, the aim of the work is the establishment of structure-property relationships as well as the clarification of their fundamental mechanisms for the purpose to be able to tailor the structure for a specific application. Thus, further material and cost savings could be possible. EPS and a bead foam made from a blend of polystyrene and polyethylene were studied regarding the effects of cell size, bead size and density on the mechanical and thermal behaviour. Furthermore, the distribution of polymer within a single bead was controlled by the introduction of a solid skin around the beads.

Structure-property relationships of polystyrene-based bead foams

Epoxy-carbon fiber prepregs have been used increasingly by civil aerospace industry to manufacture the structural composite parts due to their excellent mechanical, thermo-mechanical and thermal properties at the cured state. Although carbon fibers are electrically conductive, due to the insulating nature of the epoxy matrix, epoxy-carbon fiber prepreg laminates mostly act as a semiconductor in the through-thickness direction. Nowadays, an enhanced through-thickness electrical conductivity is as well desired for modern composite applications, where a certain level of electrostatic dissipation, electromagnetic shielding or an enhanced lightning strike resistance is necessary.

Towards electrically conductive and interleaf-toughened carbon black-epoxy-carbon fiber laminates with enhanced lightning strike resistance

At the Plastics Recycling Show Europe in Amsterdam, Netherlands, the winners of the Plastics Recycling Awards Europe 2021 were announced.

Kunststoff-Recycling

Winners of the Plastics Recycling Awards Europe 2021

Borealis is the first plastics producer to carry out third-party external audits for Operation Clean Sweep, an international initiative aimed at preventing pellet loss. Global stewardship certification programme brings entire plastics value chain together to achieve zero pellet loss. Pilot audits took place in September at Borealis production locations in Kallo and Antwerp, Belgium.

Umweltaudit

Borealis Tightens Measures against Pellet Loss

Starlinger & Co GmbH received two Letters of No Objection (LNO) issued by the US Food and Drug Administration FDA regarding its newly developed machine concept for processing post-consumer HDPE scrap. The LNOs apply to the HDPE bottle-to-bottle and cap-to-cap recycling processes.

Technik Trend

Polyethylen

Aufbereitungsmaschinen

Starlinger Recycling Process Approved by FDA

The Plastics Industry Association (PLASTICS) published a report that analyzes scientific data on the environmental impacts of plastics and finds plastics to be more sustainable than alternative materials when life cycle assessments are taken into consideration.

Kunststoff Werkstoffe

Plastics Have Smaller Environmental Impact than Alternatives

Neste and Ravago aim to establish a joint venture to build an industrial facility for chemical recycling in North Sea Port in Vlissingen, the Netherlands.

Neste and Ravago Plan Cooperation

Chemical Recycling Europe has appointed John Sewell as its new Secretary General. He will take on the position with immediate effect.

New Secretary General

Walmart Inc. agreed at its sustainability milestone summit held in October 2021 to reduce total virgin plastic use by 15% throughout the company’s plastic packaging footprint by 2025 following engagement with As You Sow.

Recycling

Walmart Commits to 15% Plastic Reduction Goal

Dow, HP, Reifenhäuser, Cadel Deinking and Karlville present a feasibility study for recycling digitally printed polyethylene barrier packaging into new high-quality PE bags.

Extrusionsanlagen

Important Step towards Pouch-to-Pouch Recycling

As part of a new effort to advance the use of recycled ocean plastic, Sabic and Microsoft have collaborated to create Microsoft’s first consumer electronic product – The Microsoft Ocean Plastic Mouse – with an exterior shell containing 20% recycled ocean plastic.

Computer Mouse Made Partly out of Ocean Plastic

News Circular Economy

With the draft of the new OPC 40079 specification, the Joint Working Group of Euromap and OPC Foundation has published an Industrie 4.0-compatible interface with an extended range of functions and thus the successor standard to Euromap 67.

Schnittstellenbasierte Automatisierungszelle

Standardized Data Exchange

The masterbatch producer Grafe has developed an antistatic treatment that achieves a significantly lower surface resistivity and can be used together with color masterbatches and various fillers.

Better Protection against ESD for Plastic Parts

Masterbatches

Additive

Antistatika

No Chance for Dust

The transition to electric cars is transforming automotive design. And so polymers producer Röhm has developed special polymethyl methacrylate (PMMA) molding compounds with this in mind. These are sold under the company’s well-known Plexiglas brand. At Fakuma, the company will be demonstrating how they can be used to combine design requirements and functional properties.

Automotive

Elektromobilität

Messe Fakuma

Technische Kunststoffe

Polymethylmethacrylat

Greater Design Freedom for Electric Cars

 Tosaf presents flame retardant masterbatches and compounds which are either free of halogens such as bromine and chlorine or free of antimony.

Flammschutzmittel

Environmentally Friendly and Effective

Lanxess has developed an unreinforced polyamide 6 compound with very good flame resistance, sustainable for the production of components with thin walls.

Polyamide

Thermoplaste

Designed for Short Cycle Times

Röhm produces antimicrobial PMMA for transparent partitions.

Kunststoff

Platten

Disease Protection by PMMA

 Erofio Group 3D Produces Mold Core on GE Additive Concept Laser M Line.

Selektives Laserschmelzen von Kunststoff, Metall, Keramik

Konturnahe Kühlung

Additive Fertigung

Anlagen Additive Fertigung / 3D-Druck, Metall

Successful Pre-Series Test

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